My phone requires a password to turn on, but I forgot the password. What should I do?

Before introducing various passwords, let us first analyze the following two concepts: "network operators and providers (or

network service providers)". Network operators are organizations responsible for the normal operation of the GSM (Global System for Mobile Communications) network. Different countries have different network operators. In China, the largest network operator is China Telecom. The supplier is the organization responsible for mobile phones entering the GSM network. The most common ones are China Mobile Communications and China Unicom (the network leased by China Telecom). For users, we only have access to suppliers, so if there is any problem with the mobile phone (other than the problem of the mobile phone itself), just find China Mobile or China Unicom to solve it.

Let me introduce the respective uses of commonly used mobile phone passwords:

1. Mobile phone passwords

Mobile phone passwords are used to prevent mobile phones from being stolen. "Security Settings" - "Power-on Password" - "Mobile Phone Password" After turning on this function, you need to enter the mobile phone password before you can use it when the phone is turned on, that is, this password is to lock the phone itself. The default value of the general mobile phone password is 1234 (such as Motorola's T2688) or 0000 (such as Panasonic's GD90 and Samsung600c).

2.pin1 code

The pin1 code is a personal identification number (PersonalIdentification Number) provided by the supplier for Sim card confidentiality. In "Security Settings"-"Power on Password"-"pin" After turning on this function, you need to enter the pin1 code when turning on the phone to use it, that is, this password is to lock the Sim card. The default value is 1234. If the mobile phone password and pin1 code are used at the same time

, enter the pin1 code first and then the mobile phone password. After entering the pin1 code incorrectly three times, it will be locked and needs to be unlocked with

puk1.

3.puk1 code

The puk1 code is the unlock code of pin1 code provided by the supplier. It is a series of irregular numbers. If puk1 is entered incorrectly for ten times

the sim card will be permanently locked and the sim card must be replaced

4.pin2 code

The pin2 code is provided by the supplier Another password for the SIM card, a personal identification code used to limit dialing and other functions. It is mainly used to eliminate call cost data, set the billing currency and billing unit for call charges, cost limit functions, and restricted dialing ("Secret Settings"). "--After "Restricted Dialing" is turned on, the phone can only dial the numbers set therein and the phone book cannot be used). The default value of the sim card of my mobile phone is 2345. After entering the pin2 code incorrectly three times, it will be locked and you need to use puk2 to unlock it.

5.puk2 code

The puk2 code is the unlock code of the pin2 code provided by the supplier. It is a series of irregular numbers. If puk2 is entered incorrectly for ten times

, the sim card will be permanently locked and the sim card will have to be replaced.

Note: Pin1, pin2, puk1, and puk2 codes can be checked at the supplier, and pin1 and pin2 can also be modified by yourself (note the original password).

6. SIM card unlock code

It is mainly used to unlock the "Lock SIM card" function. To prevent unknown SIM cards from using the phone without permission, you can turn on the "Lock SIM card" function. SIM Card" ("Security Settings"--"Lock SIM Card") function. In this way, if the SIM card in the mobile phone is not authorized, you must enter the unlock code as prompted when turning on the phone. The default value is 00000000. Many friends often ask how to identify the production date of their machine. It is very simple for Panasonic mobile phones.

Unlock the phone lock: *2767*2878#/*2767*7377#

Samsung code chip reset: *2767*3855# can also be used to unlock the phone or card lock

p>

Samsung display temperature, battery capacity: *#0228#

Samsung display contrast adjustment: *#0523#

Samsung software version: *#9999#

Samsung A100-A188 version: *#0837#

Motorola T2688 unlock all locks: 19980722

T2688/2988/988d no Chinese: *#0000# OK (Insert card)

Motorola all machine locks: Press MENU+5+1/2

Siemens restore factory settings: *#9999#

Siemens garbled text reply Chinese: *#0000#/*#0086#

Siemens software version: *#06# Left click

Old Ericsson machines reply in English: *#0000#

< p>Ericsson's new machine returns English: press CLR-left key-0000-right key

Ericsson displays the factory date: right, *, left, left, *, left, * keys

Nokia display factory date: *#0000# (card inserted)

Nokia saves 30% battery: *#746025625#

Philips forced reconnection: *#2562*#

Philips display and change mobile phone password: *#7489*#

Bosch (BOSCH) 909S returns to Chinese: *#0852#

Bosch (BOSCH) 909s returns to English ：*#0851#

NEC display software version: *#2820#

NEC restore original factory settings: *#73738#

Waveguide s1000 hidden functions: *#*#1705#

Waveguide s1000 unlock: *#*#1705#46 (also used for 999D, 720)

If it crashes, use again---24681357 (or directly Just use it to solve)

Waveguide 8xx/9xx series: *#+serial number 7-14 digits#

Remove the last digit from the last 9 digits of the SIM card waveguide serial number

Alcatel OT221/220 unlocked: 25228352/ALCATEL+D

Alcatel OT301/302 unlocked: 83227423

Alcatel OT500/700 unlocked: 25228352

Konka: *#0001# *#1001# ##1001#

Konka Xiaoxue 5219: #8879576# Original: 1234

GVC: *#1001* (Haier)

Start up Southern Hi-Tech 320 and type ##1001#, then install the card and type 0000 OK

Mitsubishi NET LOCK: *787090 or *787292

Mitsubishi IMSI LOCK ：*362628 or *360608

Mitsubishi NETSUB LOCK: *476989

Mitsubishi CP LOCK: *482896 or *480896

Mitsubishi SP LOCK: *967678

p>

Mitsubishi EXT LOCK: *574243

Philips mobile phone general secrets

When the mobile phone is in standby mode, please enter the following key combination:

* #06# View IME string code

*#2254*#Display status line

*#2255*#Turn on or off (DEBUG CALL) mode

* #2558*#Display call time

*#2562*#Force to reconnect to the network system

*#7489*#Display and change mobile phone password

*# 7378*#Display some SIM card information, such as phase (phaselevel)

*#3377*#Read SIM card information, initialization and marking

*#7693*#Turn on or off Sleep mode

>*#8463*#Read sleep mode information

*#337*# EFR mode on/off

*#4764*#Single frequency/dual? Switch single frequency frequency GSM900)

*#4765*#Single frequency/dual frequency setting (switching to single frequency GSM1800)

*#4762*#Single frequency/dual frequency setting (switching to dual frequency Mode)

ALCATEL test button

In standby mode, enter "000000*" to monitor network conditions, including signal strength and channels in use.

NEC DB2000 mobile phone secrets: Enter the following keys when in standby:

"*#2820#", and then press the call key to display the software version of the phone.

"*73738#" and then press the call button to return the phone to its factory state.

For early versions of Samsung mobile phones, you can enter the following commands to enter the test state:

Button code test function/name

*#9999# Display mobile phone Software version number

*2767*2878# Reset the current settings of the phone (unlock the phone)

*2767*3855# Reset the total EEPROM of the phone (fix software fault)

< p>*#9998*228# Battery parameter reading

*#9998*289# Ringing signal frequency test

*#9998*246# Program parameter display

*#9998*364# WATCHDOG signal test

*#9998*377# EEPROM error display

*#9998*427# WATCHDOG signal path setting

< p>*9998*523# LCD contrast adjustment

*9998*636# Storage status display

*9998*786# Current date and time reading

< p>*9998*842# Oscillator vibration test

*9998*947# Reset settings in case of major errors

*9998*9266# Display receiving channel number and receiving strength< /p>

The test commands supported by the new version of Samsung mobile phones (starting from the new version of Samsung 600) have been reduced a lot, and basically only the following ones are left that can be successful:

*2767*2878#（ EEPROM reset)

*2767*3855# (EEPROM total reset, IMEI may become initial code)

*#9999# (check version)

*#0523# (Adjust LCD contrast)

*2767*7377# (Reset command to unlock mobile phone password)

Especially the input of *#0523#, some models of mobile phones You need to insert a card, some don't. In addition, if the input is successful once but fails again, it is due to the memory effect of the mobile phone software. You can remove the battery of the mobile phone and reinstall it and try input again (for example: *2767*3855# After inputting the command, Sometimes the phone cannot be turned on without reinstalling the battery).

Samsung SGH-N288 mobile phone test instructions

*#0001# Display RS232 serial communication parameters

*#0228# Display battery capacity, voltage and temperature< /p>

*#0246# Program parameter display

*#0324# Network detection (engineering mode)

*#0364# Displays Watchdog status, which can be modified

*#0377# EEPROM error display

*#0427# WATCHDOG signal path setting

*#0523# Adjust the contrast and modify it carefully;

*#0636# Memory capacity display

*#0746# SIM card file specification test

*#0778# SIM card information

*#0786# Display The content is the time of this startup and the time since this startup to the present time.

Press -> to display the latest time from the current power on to the current time; press -> again to display the last power on time; press -> again to display the last power off time and the last power on and off time.

*#0837# Show detailed software version

*#0842# Vibration test

*#0947# Reset setup command in case of major error

*#0842# p>

*#9999# Display software version

*2767*2878# EEPROM reset, phone settings are cleared, can be used to unlock

*2767*3855# From the font library Retrieve the program to reset the EEPROM to factory values. For mobile phones whose IMEI codes have been modified, use this command to restore the original factory body number. This instruction is also used for various faults caused by program disorder in the EEPROM (chip).

Secrets of Siemens Chinese phone are revealed

Enter [*#06#] to see the IMEI (International Mobile Equipment Identity) code.

Enter [＊#06#]＋[Left soft key] to view the software version number. The above can be operated without inserting a SIM card.

Enter [＊#0000#]+[Launch key] to change to the default language display (English?).

Enter [＊#0001#]+[Launch key] to change the display to English.

Input [＊#0086#]＋[Launch key] to change to Simplified Chinese display.

Enter [＊#0886#]＋[Launch key] to change to Traditional Chinese display.

Shortcut keys

Long press [＊] to turn on or off the ringtone.

Long press [#] to turn on or off the keyboard lock.

Long press the [Left Up Button] to open the profile mode settings.

Press and hold the [left down button] to turn on voice dialing.

Short press the [right recording button] to play the recorded sound. It can be played at any time, including during a call, and both parties in the call can hear it.

Press and hold the [right recording button] to start recording until you release it or 20 seconds have elapsed.

When using the keyboard lock, you can press and hold the [hangup key] to temporarily turn on the luminous lighting.

Double-click [Phonebook] to enter the VIP phonebook.

[1]+[Transmit button] can enter the voicemail (you need to set the voicemail service number in [Menu→SMS→Voicemail]).

[0]+[Left soft key] can switch between Line 1 and Line 2 (it seems not supported in most areas, including Zhuhai).

[Number keys] + [#] can display the name of the phone book stored in that location on the SIM card (provided that at least one phone number is stored in the SIM card).

Press and hold [0], the + character will appear, and you can use the left soft key to select the national long-distance code (the positions are arranged according to the English name).

Shortcut key setting: [Numeric keys] → [Left soft key] → [Right soft key] (change) Options will appear at this time, just select (if you select a phone number, you will enter the phone book You can select the phone name to be quickly transmitted)

Use [Number Keys] → [Transmit Key].

How to unlock the Siemens mobile phone lock

Netizens who need to unlock the phone directly enter the phone number, and then wait for automatic unlocking, which takes about 1 second to 60 minutes

< p>Nokia display factory date: *#0000# (card)

Nokia saves 30% electricity: *#746025625#

Sony Ericsson display factory date: right, *, left , left, *, left, * keys