Nokia n5220 SMS bug

*#06# Query IMEI number is common to all mobile phones.

*#7370# Formatted mobile phones are limited to 60 series mobile phones.

*#7780# Restore factory settings. Series 60 and 40 mobile phones are more common.

*#0000# Querying the current software version number is common to all mobile phones.

*#7760# Inquire about the serial number of mobile phone production line 40.

*#2820# Inquiring about the address of Bluetooth devices is common in 60 series and 40 series mobile phones.

* Some models of 3370 # mobile phones have enabled EFR.

#3370# Turn off the availability of some models of EFR phones.

* Some models of 4720 # mobile phones have activated HFR.

#4720# Turn off the availability of some models of HFR phones.

*#92702689# The total call time of inquiry is limited to 6630.

*#92702689# Enter the data mode series 40 of the mobile phone.

* # 7370925538 # 60 series mobile phone locks the mobile phone.

I. *#06#: display IMEI code.

Second, *#0000#: Display the software version.

(If some models don't work, please press * # model code #, such as *#6 1 10#).

The first line-software version;

The second line-software release date;

The third line-mobile phone model

Three. *#92702689#: Use the scrolling menu to display the serial number and IMEI code.

The above discount says-mobile phone factory time: 1 197 (year, month and day);

The second screen shows the serial number and IMEI；;

The third screen indicates that the purchase time: 1 197 (year, month and day) can be changed once.

(But once entered, it cannot be changed, and the date will be permanently recorded. )

The fourth screen shows-Last maintenance time: 0000 (year, month and day).

The fifth screen shows-transfer user data: exit, turn off the phone, and then return.

If the above work is not normal, and the phone asks you to enter the legal code, please try:

1).6232 (Normal): Displays the month and year of manufacture.

2).7832(OK): Displays the month and year when the mobile phone was purchased.

3).7332(OK): Displays the year and month of the latest maintenance time: 0000 (year, month and day). Maintenance time setting.

4).9268(OK): Display the serial number.

5).37832(OK): Set the year and month of purchase time (warning: only once).

6).87267(OK): Confirm transmission, which is related to software update.

Fourth, rate coding.

*3370# or *efr#: Turn on (efr) full rate coding.

#3370# or #efr#: Turn off full-rate encoding.

(Turn on full-speed enhanced coding mode, which can improve voice quality but consume power)

*4720# or *hra0#: Turn on (HR) half-rate coding.

#4720# or #hra0#: Turn off half-rate coding.

(The voice quality has declined, but the battery life can be extended by about 30%, which requires network support. )

After entering these codes, it will be closed and reopened before it can take effect.

Verb (abbreviation of verb) SIM card lock information

*#746025625# (= *#sim0clock#): If the sim card can be locked, the phone will display "Allow the SIM clock to stop" or "Do not allow the SIM clock to stop" after inputting this instruction during the test, depending on your SIM card.

SIM card lock information: including four different locks.

1). country lock-lock the specified country.

2). Network lock-lock the specified network.

3). Vendor lock-in-lock the service provider

4).SIM card lock-lock the specified SIM card.

6. Check whether the phone is frequency locked.

First of all, we must find out several keys that must be used when setting up the mobile phone. Among them, "+"will appear if you press the * key twice in a row; Press the * key three times in a row and "P" will appear; Press the * key four times in a row and a "W" will appear. Then, you can enter the corresponding key combinations in turn.

# pw+1234567890+1#: query whether the country code is locked.

#pw+ 1234567890+2#: query whether the network code is locked.

#pw+ 1234567890+3#: the code for querying whether the network provider is locked.

#pw+ 1234567890+4#: inquire whether the SIM card is locked.

Seven, the power button

Touch the power button and the scene mode menu will be displayed on the screen. You can quickly switch between modes by pressing the up and down keys. Turn on the screen light in keyboard lock mode. Have you ever felt the trouble of unlocking the keyboard of your mobile phone in the dark at night? In fact, you can touch the power button, and then the nightlight on the screen and keyboard will open, so you can easily distinguish the button to open the keyboard lock.

Eight, check the phone status

Operation instruction: #pw+(mastercode)+X#

(mastercode) is a number 10 (without brackets). X is a number from 1 to 4, indicating the lock on it. I'm not sure which number corresponds to which lock.

The SIM card does not restrict information, which means that your mobile phone is unlocked.

1). input voltage of vin charger is 8.4v0.8a.

2).CHRG controls the charger to control PWM 32Khz.

3).XMIC microphone input 60mv-1v.

4).SGND signal is grounded.

5).XEAR ear output 80mV-1V.

6).MBUS 9600 B/S

7).FBUS_RX 9.6 - 230.4 KB/S

8).FBUS _ TX 9.6-230.4 KB/ s

9).GND charger/logic GND

Nine, Nokia 9000/9000i

1). Display IMEI number: *#06#

2) Display the software version number: * # 682371158412125 # The latest version is under the telephone information.

3). Display manufacturing week and year: *#3283#

4). Telephone type: GE8

X. 5 1 10 password lock machine decoding

Operating steps: press c, and then press-> Hold down the c key-> Press and hold-> Press and hold->

Enter 04 * PIN * PIN # and you're done.

XI。 Replace current number

Hold down the # key for about one second, and the screen will appear "Exchange Numbers?" When you press OK, a 2 character will appear at the top of the screen. At this time, the mobile phone can't dial out but can answer incoming calls. Cancel a re-operation and use it to achieve the effect of locking the machine. Enter the incoming call menu when there is no incoming call, and press and hold the function key for two seconds to enter the incoming call menu, which generally only appears when there is an incoming call.

12.6 1 10 displays the name on the standby screen.

Choose a least common operation mode, usually pager menu 3-5. After setting the personalized selection menu 3-5-2, rename the menu 3-5-3 to your own name and start it. Note: If you want to revert to the pager, just rename Menu3-5-3 to blank.

System bugs can't be solved without upgrading.