Firmware version:
*#0000#
*#51x0# or
*#9999#
View Serial No., Date Made, Programming Date, Repaired: (warranty code)
*#92702689# or
*#war0anty#
IMEI (International Mobile Equipment Identity) Code:
*#06#
Enhanced Full Rate (EFR):
*3370# to activate EFR. Makes calls sound better, but decreases battery life by about 5%.
#3370# to deactivate EFR
Half Rate Mode (HFR):
*4720# to activate HFR. Decreases call quality but increases battery life by about 30%.
#4270# to deactivate HFR.
Default Security Code:
12345
Bypass the SP lock
-With a Nokia 16xx/21xx/31xx/51xx/81xx that are SIMlocked to one provider you can bypass the SP lock like this:
1] Insert sim card of different provider.
2] Turn on the phone and press the UP VOLUME key for 3 sec. then release it and the phone says PIN CODE ?
3] Press the "C" key.
4] Then Press * and wait until it disappear and appear again, then press * one more time and
04*PIN*PIN*PIN#
The phone now says: PIN CODE CHANGED (or ACCEPTED) and the SIM card is accepted until you
restart the phone again. NOTE: On version 5.04 Nokia has removed this option
Activate Field Test Mode
*3001#12345#
Nokia Security Numbers
Default Security code number is 12345. |