How to unlock the security code of a Nokia 6300 phone. What is remote phone unlocking

31.07.2020

Nokia
*#746025625# [*#sim0clock#]
*#92702689# [*#war0anty#]

*#7370925538# (valet code reset) 6230
*#746025625# [*#sim0clock#]
*#92702689# [*#war0anty#]
To access the service menu of the device, you need to dial *3001#xxxxx#, where xxxxx is the security code, which by default is 12345. Thus, to enter the menu you will need to dial *3001#12345# In this mode, for example , you can change the network operator name displayed in standby mode. To do this, select NAM1, scroll to the Alpha Tag sub-item, change it as desired (for example, write Vovochka and press OK. Exit the mode by turning the phone off and on.
It is possible that this code will also work on other phone models (51xx, 61xx).

*#0000#—birthday and phone software version
*#06#-on many imei phones
*#92702689# - some kind of *broken menu - I don’t know why
*#3370# and *#3370* - on and off call quality - something like that, but not all operators support this crap. Nokia itself was re-flashed v 5.79

NOKIA 5120&5125 service code:
In addition to the above, there are a couple more SERVICE CODE
1) *#639#(*#NEW#) is used to add a number, i.e. you can register several telephone numbers, and switch between them.

2) *#92772689#(*#WARRANTY#)
1)Serial number
2) Release date
3) Date of reprogramming
4) Date of last repair.
5) Includes data transfer
6) Total talk time.

3) *#837# or *#VER# phone version (not supported by all models)

4) *#9999# or *#6120# softa version (not supported by all models)

before changing anything in the settings
THINK WELL IF YOU CAN RETURN EVERYTHING IN PLACE LATER
ESPECIALLY IN POINT 1
It is not possible to change the operator name on all NOKIA models; in the latest models, this feature is blocked by the manufacturer.
the only (almost) plus of this code service *#3001#12345# is the ability to recover the “FORGOT” password for turning on the mobile phone.
And the second plus is that the level of the received signal is visible.
NOKIA 2110
Show EMEI number *#06# >
Show version software phone *#9999# > or for 2110i *#170602112302# > or *#682371158412125# >
Show phone production date *#3283# >

3110
Show EMEI number *#06# >
Shows software version *#3110# >
Restores factory settings *#7780* >
Entering the special menu *#92702689# > Commands in the special menu:

5110
To reduce electricity consumption, you can disable the EFR (Enhanced Full Rate) function #3370# >
To enable the EFR function *3370# >
To reduce the rate of battery discharge and enable the HR (Half Rate) function *4720# >
To enable the HR function #4720# >
To disable SP encodings (provided that the device PIN code is enabled): When prompted for a PIN code, press “C”, then “up arrow” or “down arrow”. Press "C" until the display clears. Then enter the command to change the PIN code, but do not actually change it - **04*PIN*PIN*PIN# > The only problem is that this procedure you will have to repeat each time you turn on the device.

6110
To reduce electricity consumption, you can disable the EFR (Enhanced Full Rate) function #3370# >
To enable the EFR function *3370# >
To reduce the rate of battery discharge and enable the HR (Half Rate) function *4720# > then turn off and turn on the phone again.
To enable the HR function #4720# >
To view IMEI number a *#06# >
Show software version *#0000# >
Entering the special menu *#92702689# > Commands in the special menu:
6232 OK shows the month and year of manufacture
7332 OK shows the date of the last change in the program
7832 OK shows the date of sale (if entered)
37832 OK, you can enter the sales date MMYY (be careful! You cannot change it later)
9268 OK shows serial number (IMEI)

7110
View firmware version *#0000# >
View IMEI *#06# >
Login service menu: *#92702689# > By successively pressing down you will see after IMEI:
1 IMEI (International Mobile Equipment Identification)
2 MM/YY (issue date)
3 Date of purchase (here you can enter the date of purchase if your phone is new. Remember that the date is entered once and if you entered the wrong date, it will be impossible to correct it later!
4 Date of repair (if repairs were made)
5 Date transferred to user? ATTENTION: to exit this mode you need to turn off and turn on the device again.
Checking the card's support for SIM-clock-stop mode (only for firmware version 5.24 or later) *#746025625# >
Enable Enhanced Full Rate Codec (EFR): *3370# > will be enabled after phone reboot (consumes more power) Disable Enhanced Full Rate Codec (EFR): #3370# > and EFR will be disabled after phone reboot
Enable Half Rate Codec: (available only for firmware version 4.33 or earlier) enter *4720# >and Half Rate mode will be enabled after rebooting the phone Disable Half Rate Codec: enter Enable #4720# >and Half Rate Codec will be deactivated after rebooting the phone

Smartphones

*#06# - IMEI of the smartphone (IMEI number - consists of 15 digits, it is unique and every phone has it). This number must match the number on the box.
*#0000# - firmware number
safe mode ("PENCIL"+Power)
*#7780# - restore original (working) smart settings
*#7370# - reset the smart to factory settings (i.e. all software, contacts, calendar, etc. are deleted - the smart becomes clean!)
ATTENTION! To use the last two codes you will need to enter the phone lock code (default 12345)!
Safe Mode when you turn on the phone - “PENCIL” + “Power Buttion”
Loading into Safe:
1. Turn off your phone
2. Press "PENCIL" (and DO NOT release)
3. Press the power button
4. Hold the “PENCIL” until it is FULLY loaded!!!
*#2820# - unique address of the Bluetooth module of your device (may be needed by other devices that cannot display names).
*#7370925538# - clearing the “Wallet” (for 6600 and higher - which have a “Wallet”).
*3370# (phone must reboot) improves sound quality (using EFR), but reduces battery life.
#3370# - resets the sound quality to normal (cancels the *3370# code).
EFR CODEC (Enhanced Full Rate)
This function, when enabled, should, in theory, significantly improve the quality of transmitted speech, but, unfortunately, it must be supported by the operator cellular communications. When it works, the phone's power consumption during talk time increases slightly (about 5%). As far as we know, none of the Russian mobile operators support this function. The principle is based on a different speech compression algorithm (ACELP) and occupies a wider frequency band.
*4720# - enable Half Rate Codec (HFR)
#4720# - disable Half Rate Codec (HFR)
HR CODEC (Half Rate)
Significantly degrades speech quality, but saves battery by about 30%. Again, must be supported by your cellular operator.
*#92702689# - enter the service menu [*#war0anty#]

Secrets of NOKIA 6600 and other Smartphones

*#06# - IMEI of smartphone

*#0000# - Firmware number

*#7780# - Restoring the original (working) settings of the smartphone

*#7370# - Reset the smartphone to factory settings (all software, contacts, calendar, etc. are deleted - the phone becomes clean)

*#2820# - Bluetooth code (unique address of the Bluetooth module)

*#7370925538# - clearing the “Wallet” (for 6600 and above - and which have a “Wallet”).

Safe Mode when you turn on the phone - "ABC" + "Power Buttion" (in 3650 "ABC" is a "pencil")

Loading into Safe:

1. Turn off your phone
2. Press "ABC" (and DO NOT release)
3. Press the power button
4. Hold "ABC" until the phone is FULLY loaded!!!

And here's another one additional method formatting the phone (with the loss of all data), in case you can’t even dial the treasured code *#7370# or even start the handset: in the off state, hold down three keys at the same time, the green one for answering, the star and the “3” key. And now turn on the pipe without releasing the keys. Formatting will begin.

To use the codes *#7780# and *#7370#, you will need to enter the blocking code (default 12345).

##002# cancel all forwardings.

**004*number# enable forwarding of all calls to the entered number.

Secrets of NOKIA 3210, 3310, 3330, 8210, 8250, 8850, 9110

Shows phone serial number (IMEI)
*#06#

Software Version
*#0000#

1 Line - Version
2 Line - Date of release of the program. provision
3 Line - Phone type.

Warranty codes:
*#92702689# (= *#war0anty#)
You will be prompted to enter a type of "warranty code"

The service menu will be displayed on the screen:
IMEI (International Mobile Equipment Identification)
Phone release date MM/YY
Phone purchase date
Repair date
Transfer user data?

*3370# - Activation of full-bit encoding mode (Increases communication quality, reduces battery life)

#3370# - Deactivate full-bit encoding mode.
Note: After entering these codes, the phone will restart with new settings.

Check if you can stop SIM Clock:
*#746025625# (= *#sim0clock#)

Codes for determining whether LOC is installed on the device or not
Your Nokia can be blocked by 4 types of locks:
SPROVIDER-LOCK - 1
NETWORK-LOCK - 2
COUNTRY-LOCK - 3
SIMCARD-LOCK - 4

To check the status of these locks, enter the following line:
#pw+(MASTERCODE)+(y)#, where
- p = press * 3 times
- w = press * 4 times (in the original, on the contrary, w - 3 times, p - 4)
- + = press * 2 times
- MASTERCODE = exactly the thing that was used to lock your device. But to check the status, enter 1234567890
- y = number from 1 to 4

If your phone is locked by an SP (Service Provider) code that is unknown, then try the following:

1. The Pin code request must be enabled;
2. turn on the phone;
3. when request Pin code press C, then up or down arrow;
4. press C and hold until the display clears;
5. Now enter the command to change the Pin code, but without changing it;
**04*Pin*Pin*Pin#
This operation must be repeated every time the device is turned on.

Half Rate Codec:
Inclusion:
*4720# - Half Rate will be activated after the phone is overloaded (power consumption is reduced)
Shutdown:
#4720# - Half Rate will be turned off after the phone is overloaded
Enhanced Full Rate mode allows you to get much more best quality sound with the same number of bits of transmitted information, but loads your provider’s network more, the duration of the call time is reduced by about 5%

Half Rate mode degrades sound quality, but unloads the network and allows the provider to pass more calls through it, the duration of the call time increases by about 30%

Security code Information in IMEI (International Mobile Equipment Identity) contains:

XXXXXX XX XXXXXX X
TAC FAC SNR SP

TAC = Type Approval Code (first 2 digits = country code).
FAC = Final Assembly Code (For Nokia FAC=10).
SNR = Serial Number.
SP = Spare (always SP=0).

**04*oldPIN*newPIN*newPIN# - Change PIN code

**042*oldPIN2*newPIN2*newPIN2# - Change PIN2 code

**05*PUK*newPIN*newPIN# - Unblock PIN code

**052*PUK2*newPIN2*newPIN2# - Unblock PIN2

*#35# - Check the blocking status of all incoming calls

**35*code# - Activate blocking of all incoming calls

#35*code# - Disable blocking of all incoming calls

*#33# - Check the blocking status of all outgoing calls

**33*code# - Activate blocking of all outgoing calls

#33*code# - Disable blocking of all outgoing calls

*#330*code# - Check the status of blocking all calls

**330*code# - Activate blocking of all calls

#330*code# - Disable blocking of all calls

ANDROID CODES FOR Nokia 6300

*#06# - show Nokia IMEI 6300IMEI (International Mobile Equipment Identifier) is a 15-digit number that represents the unique number of each GSM mobile phone. It is installed at the factory during manufacture and serves for accurate and complete identification of the device in the GSM network.

*#8888# - shows Hardware Version Nokia 6300

*#9999# - show Nokia 6300 firmware version

*#8999*8376263 - Nokia 6300 firmware data

*#8999*324# - various technical data

*#8999*636# - technical specifications of Nokia 6300

*#8999*523# - display contrast, the same as through the main phone menu

*#0523# - contrast

*#2255# - Nokia 6300 call log

*#0837# - display the software version

*#0001# - show serial number

#*7337# - unlock Nokia 6300

*#8999*377# - Nokia 6300 error log

*#4777*8665# - setting up GPRS Nokia 6300

*#0020# - setting the default menu language

*#0007# - sets the text mode to Russian

*#9125# - setting emoticon modes in charging mode

*#7465625# - block list

*7465625*638*# - network blocking

*#9998*228# - battery status (capacity, voltage, temperature)

*#9998*246# - Nokia 6300 software status

*#9998*289# - change the alarm frequency

*#9998*324# - debugging screen

*#9998*364# - Watchdog

*#9998*544# - Jig detect

*#9998*636# - Nokia 6300 memory status

*#9998*746# - SIM file size

*#9998*837# - Nokia 6300 software version

*#9998*842# - Nokia 6300 vibration test

*#9998*872# - diagnostics of Nokia 6300

*#8999*8378# or *#8999*test# -Test Mode

*#9998*999# - last check

*#9998*523# - contrast

*#9998*947# - reset in case of a critical error (entered without a SIM card, deletes all files, may cause the camera to malfunction)

*2767*3855# - full reset EEROM (SP unlock, but can change phone IMEI)

*2767*2878# - user reset EEPROM

*#0228# - find out battery temperature, type and charge of Nokia 6300

*#9998*JAVA# - JAVA - CSD and GPRS settings for Internet Nokia 6300

*#9998*VERNAME# - extended information about firmware, hardware, time and date of software creation, etc.

STANDARD GSM CODES FOR Nokia 6300

Change PIN - **04*, then enter the old PIN, and the new PIN twice.
Change PIN2 - **042*, then enter the old PIN2, and the new PIN2 twice.
Unlock SIM card (PIN) - **05*, then enter PUK and new PIN twice
Unlock SIM card (PIN2) - **052*, then enter PUK2 and new PIN2 twice

Forwarding Nokia call 6300 (you must order the service from the operator)
Cancel all forwardings - ##002#
Cancel all conditional redirects - ##004#
Activate all conditional forwardings - **004*Phone number#

Unconditional forwarding (forwarding all calls)
Turn off and deactivate - ##21#
Deactivate - #21#
Enable and activate - **21*Phone number#
Enable - *21#
Check status - *#21#

Forwarding in case of "no answer"
Turn off and deactivate - ##61#
Deactivate - #61#
Enable and activate - **61*Phone number#
Enable - *61#
Check status - *#61#

Setting the call time before the "no answer" call forwarding is triggered
When setting up call forwarding on "no answer", you can set the time in seconds that the system gives you to pick up the phone. If you have not picked up the phone during this time, incoming call will be redirected.
Example: - **61*+709576617601234**30# - sets the wait time to 30 seconds
Set the waiting time - **61*Phone number**N# , N=5..30 (seconds)
Remove previous installation - ##61#

Forwarding in case of "not available"
Turn off and deactivate - ##62#
Deactivate - #62#
Enable and activate - **62*Phone number#
Enable - *62#
Check status - *#62#

Forwarding when busy
Turn off and deactivate - ##67#
Deactivate - #67#
Enable and activate - **67*Phone number #
Enable - *67#
Check status - *#67#

Call barring (you must order the service from your operator)
Change password for all prohibitions (default - 0000)
- **03*330*old password*new password*new password#

Activate - **33*password#
Deactivate - #33*password#
Check status - *#33#

Barring all calls on Nokia 6300
Activate - **330*password#
Deactivate - #330*password#
Check status - *#330#

Barring all outgoing international calls on Nokia 6300
Activate - **331*password#
Deactivate - #331*password#
Check status - *#331#

Barring all outgoing calls on Nokia 6300
Activate - **333*password#
Deactivate - #333*password#
Check status - *#333#

Barring all incoming calls on Nokia 6300
Activate - **353*password#
Deactivate - #353*password#
Check status - *#353#

Barring all incoming calls when roaming
Activate - **351*password#
Deactivate - #351*password#
Check status - *#351#

Nokia 6300 call waiting (you must order the service from your operator)
Activate - *43#
Deactivate - #43#
Check status - *#43#

Send your phone number (Anti Caller ID)
Deny - #30#phone number
Allow - *30#phone number
Check status - *#30#

Display the phone number of the person calling you (Caller ID)
Deny - #77#
Allow - *77#
Check status - *#77#

Questions about Nokia 6300 secret codes

Ask a question about secret codes on Nokia 6300

To generate an unlock code for your phone, we need the number IMEI Your phone. To find out the IMEI number, dial *#06# on the keyboard, or remove the battery from the phone. IMEI is written on the information label (15 digits).

How to Unlock Nokia 6300:

Unlock code for Nokia 6300: #pw+12345678901234+1# enter the following:

1. Turn on your phone without a SIM card.

2. Symbols p, w, + will appear after pressing the * (star) symbol a couple of times

3. Press # at the end to confirm the code.

4. The message “SIM Card Restricted” should appear.

5. Your Unlock Nokia 6300 is unlocked

FAQ:

What is remote phone unlocking?

Remotely unlocking your phone involves typing a unique code supplied by our service into the keypad. You will commit this operation quickly, it is not complicated, how to count 1 2 3. After completing the order, the client will receive e-mail a unique unlock code provided by the phone manufacturer or mobile operator. A condition for the proper provision of services is the provision correct number IMEI. The best way to find this number is by dialing on your phone. *#06#. After entering the appropriate code into the phone, the phone will be unlocked. Entering the unlock code once removes the lock forever. The lock will not appear again, for example, after updating the phone software, and there is no need to enter the code again after replacing the SIM card with a new one from a different operator. Remotely unlocking your phone does not require any cables or additional software. Unlocking your phone using a code is the easiest way to get rid of restrictions.

Is it safe Unlock Nokia 6300?

Removing restrictions set by the operator by entering a special unlock code was provided by the phone manufacturer itself. So it is proven and safe as well effective method unlock your phone. This method does not require any changes or technical knowledge to be introduced into the phone.

Will removing Sim-Lock void the warranty?

Removing restrictions on your phone will not void your warranty. The ability to enter an unlock code was provided by the phone manufacturer, and this operation does not affect the warranty. All phones leaving the factory are not locked. Blockings are set by mobile operators. By removing this restriction, you will restore your phone to its original settings (factory reset).

Is it possible to unlock Nokia 6300?

No, the latest phone models cannot be unlocked when using free methods. Phone manufacturers and mobile operators receive additional income from the distribution of unlock codes. The simplest and most effective method of unlocking a phone is to enter a code supplied by the phone manufacturer or operator. Each phone requires a special code related to a unique IMEI number this phone. Using free code generators or entering a code related to a different IMEI number will block the meter. This is due to the higher cost of unlocking the device, or may result in it being completely locked.

Is it possible to unlock a phone locked to any operator?

Please check the list of supported countries/networks.

What if there is no code for my phone??

If there is no code for a particular IMEI number, the customer will immediately receive a full refund of the amount paid.

How to unlock Nokia 6300 phone locked by operator?
This type of blocking is used by mobile operators to make it impossible to use a phone (usually branded) on the network of another operator. If you insert another SIM card (from any other operator), then when you turn on the phone will ask you for a password or unlock code. Then the question arises: “how to unlock a phone code?” The best option, of course, if you have a fairly loyal operator who will kindly provide you with a code during a call to support. To do this you only need to name the IMEI "IMEI" is a unique serial number stitched into each GSM phone. IMEI consists of 15 digits. The abbreviation “IMEI” stands for “International Mobile Equipment Identifier” (i.e. “International Mobile Equipment Identifier”). Nokia 6300 (a number that is individual for each device, usually you can find it under the phone’s battery). But this is an ideal option, which is extremely rarely possible. If the operator refuses you, then do not despair, as there are plenty of craftsmen who can unlock your phone using flashing. Detailed manuals can often be found online, so if you have a sufficient level of knowledge, you can do this procedure yourself. But if you are not confident in your abilities and knowledge, then it is better to entrust this work to a specialist. Often, a jailbreak program is used for unlocking, which is supported by such a well-known company as Apple.

Unlocking SIM card of Nokia 6300 phone
A small plastic card with a chip in the middle is an irreplaceable device without which a mobile phone is simply useless as such. We are talking, naturally, about a SIM card. The chip it uses, although small in size, allows you to store a certain amount of information, which is often confidential. To ensure the safety of this data, protection technology is also used using the so-called PIN code, which is requested when you turn on the Nokia 6300 phone. If you unsuccessfully enter the PIN code three times, the mobile device will ask you for another code, the so-called PUK code. It usually consists of eight digits and is provided to you along with the SIM card. If you cannot use your phone because you do not know the PIN code, then simply use the PUK code. PUK (from English Personal unblocking code) is necessary in order to unlock the SIM card. So, if you enter the wrong PIN code 3 times, the SIM card will be blocked. To unlock it, you need to either go to the nearest mobile operator store along with your passport, or use the PUK code, which, in fact, allows you to unlock the SIM card without leaving your home. If you don’t know it either and it’s not written down anywhere (and the documents from the SIM card are lost, for example), then the first thing you need to do is call the support number of your mobile operator. There they will tell you how to find out your PUK code (you may even be able to find it out over the phone).

Unlocking Nokia 6300 phone memory
Some phone models allow you to separately block access to various files, which are in memory (either the phone or, most often, an additional memory card). In this case, again, it is possible that you will not know (or remember) set password and the functionality of the device will be partially unavailable to you. It is very unpleasant when the information you need seems to be at hand, but at the same time is not available to you. To solve this problem, you will have to worry about unlocking the Nokia 6300 memory card. There is an option such as formatting, which will allow you to quickly resolve the issue of not knowing the code. But it will not solve the issue of information recovery, since all of it will be destroyed as a result of formatting. Therefore, this option is not suitable for everyone. All other methods that allow you to unlock your phone's memory are based on the use of additional software. To do this, you will need the cable that came with the phone (or was purchased by you additionally) to connect it to the computer, or a card reader ( small device, which will allow you to read information from a memory card by connecting it to a computer separately from the phone). One of the programs that can be used to unlock is JetFlash Recovery Tool. You can download it from the official website of the developers. It can also be used to format Nokia 6300 memory card.

The main thing is that you are aware of all your actions and understand perfectly what you are doing. Otherwise, you can simply disrupt the functionality of the phone, which cannot always be restored. So if you don’t know how to unlock your Nokia 6300 phone or perform any other action with it, then it’s better to turn to professionals for help. But I still hope that you will not encounter such problems and will handle your telephone wisely.

Questions about unlocking Nokia 6300

Ask a question regarding unlocking Nokia 6300

Nokia
*#746025625# [*#sim0clock#]
*#92702689# [*#war0anty#]

NOKIA 5120&5125 service code:
In addition to the above, there are a couple more SERVICE CODE
1) *#639#(*#NEW#) is used to add a number, i.e. you can register several phone numbers and switch between them.

2) *#92772689#(*#WARRANTY#)
1) Serial number
2) Release date
3) Date of reprogramming
4) Date of last repair.
5) Includes data transfer
6) Total talk time.

3) *#837# or *#VER# phone version (not supported by all models)

4) *#9999# or *#6120# softa version (not supported by all models)

before changing anything in the settings
THINK WELL IF YOU CAN RETURN EVERYTHING IN PLACE LATER
ESPECIALLY IN POINT 1
It is not possible to change the operator name on all NOKIA models; in the latest models, this feature is blocked by the manufacturer.
the only (almost) plus of this code service *#3001#12345# is the ability to recover the “FORGOT” password for turning on the mobile phone.
And the second plus is that the level of the received signal is visible.
NOKIA 2110
Show EMEI number *#06# >
Show phone software version *#9999# > or for 2110i *#170602112302# > or *#682371158412125# >
Show phone production date *#3283# >

3110
Show EMEI number *#06# >
Shows software version *#3110# >
Restores factory settings *#7780* >
Entering the special menu *#92702689# > Commands in the special menu:

5110
To reduce electricity consumption, you can disable the EFR (Enhanced Full Rate) function #3370# >
To enable the EFR function *3370# >
To reduce the rate of battery discharge and enable the HR (Half Rate) function *4720# >
To enable the HR function #4720# >
To disable SP encodings (provided that the device PIN code is enabled): When prompted for a PIN code, press “C”, then “up arrow” or “down arrow”. Press "C" until the display clears. Then enter the command to change the PIN code, but do not actually change it - **04*PIN*PIN*PIN# > The only problem is that this procedure will have to be repeated every time you turn on the device.

6110
To reduce electricity consumption, you can disable the EFR (Enhanced Full Rate) function #3370# >
To enable the EFR function *3370# >
To reduce the rate of battery discharge and enable the HR (Half Rate) function *4720# > then turn off and turn on the phone again.
To enable the HR function #4720# >
To view IMEI number *#06# >
Show software version *#0000# >
Entering the special menu *#92702689# > Commands in the special menu:
6232 OK shows the month and year of manufacture
7332 OK shows the date of the last change in the program
7832 OK shows the date of sale (if entered)
37832 OK, you can enter the sales date MMYY (be careful! You cannot change it later)
9268 OK shows serial number (IMEI)

7110
View firmware version *#0000# >
View IMEI *#06# >
Enter the service menu: *#92702689# > By successively pressing down you will see after IMEI:
1 IMEI (International Mobile Equipment Identification)
2 MM/YY (issue date)
3 Date of purchase (here you can enter the date of purchase if your phone is new. Remember that the date is entered once and if you entered the wrong date, it will be impossible to correct it later!
4 Date of repair (if repairs were made)
5 Date transferred to user? ATTENTION: to exit this mode you need to turn off and turn on the device again.
Checking the card's support for SIM-clock-stop mode (only for firmware version 5.24 or later) *#746025625# >
Enable Enhanced Full Rate Codec (EFR): *3370# > will be enabled after phone reboot (consumes more power) Disable Enhanced Full Rate Codec (EFR): #3370# > and EFR will be disabled after phone reboot
Enable Half Rate Codec: (available only for firmware version 4.33 or earlier) enter *4720# >and Half Rate mode will be enabled after rebooting the phone Disable Half Rate Codec: enter Enable #4720# >and Half Rate Codec will be deactivated after rebooting the phone

Smartphones

*#06# - IMEI of the smartphone (IMEI number - consists of 15 digits, it is unique and every phone has it). This number must match the number on the box.
*#0000# - firmware number
safe mode ("PENCIL"+Power)
*#7780# - restore original (working) smart settings
*#7370# - reset the smart to factory settings (i.e. all software, contacts, calendar, etc. are deleted - the smart becomes clean!)
ATTENTION! To use the last two codes you will need to enter the phone lock code (default 12345)!
Safe Mode when you turn on the phone - “PENCIL” + “Power Buttion”
Loading into Safe:
1. Turn off your phone
2. Press "PENCIL" (and DO NOT release)
3. Press the power button
4. Hold the “PENCIL” until it is FULLY loaded!!!
*#2820# - unique address of the Bluetooth module of your device (may be needed by other devices that cannot display names).
*#7370925538# - clearing the “Wallet” (for 6600 and higher - which have a “Wallet”).
*3370# (phone must reboot) improves sound quality (using EFR), but reduces battery life.
#3370# - resets the sound quality to normal (cancels the *3370# code).
EFR CODEC (Enhanced Full Rate)
This feature, when enabled, should, in theory, significantly improve the quality of transmitted speech, but, unfortunately, it must be supported by the cellular operator. When it works, the phone's power consumption during talk time increases slightly (about 5%). As far as we know, none of the Russian mobile operators support this function. The principle is based on a different speech compression algorithm (ACELP) and occupies a wider frequency band.
*4720# - enable Half Rate Codec (HFR)
#4720# - disable Half Rate Codec (HFR)
HR CODEC (Half Rate)
Significantly degrades speech quality, but saves battery by about 30%. Again, must be supported by your cellular operator.
*#92702689# - enter the service menu [*#war0anty#]

Secrets of NOKIA 6600 and other Smartphones

*#06# - IMEI of smartphone

*#0000# - Firmware number

*#7780# - Restoring the original (working) settings of the smartphone

*#7370# - Reset the smartphone to factory settings (all software, contacts, calendar, etc. are deleted - the phone becomes clean)

*#2820# - Bluetooth code (unique address of the Bluetooth module)

*#7370925538# - clearing the “Wallet” (for 6600 and above - and which have a “Wallet”).

Safe Mode when you turn on the phone - "ABC" + "Power Buttion" (in 3650 "ABC" is a "pencil")

Loading into Safe:

1. Turn off your phone
2. Press "ABC" (and DO NOT release)
3. Press the power button
4. Hold "ABC" until the phone is FULLY loaded!!!

And here is another additional way to format your phone (with the loss of all data), in case you can’t even dial the treasured code *#7370# or even start the handset: in the off state, press three keys at the same time, green for answer, asterisk and key "3". And now turn on the pipe without releasing the keys. Formatting will begin.