BlackBerry Secret Codes
Decibel meter.
Displays your signal strength in decibels, instead of bars. Hold "Alt" and press "N", "M", "L", "L" (repeat to reverse the effect).Address Book file verification.
Checks the data in your Address Book for inconsistencies. In the Address Book, hold "Alt" and press "V", "A", "L", "D". Address Book data structure rebuild. Forces a data structure re-build in the Address Book... In the Address Book, hold "Alt" and press "R", "B", "L", "D". (read more.......) How To Enter the Unlock Codes on a BlackBerry
All models of BlackBerry- Go to the menu, then Settings Menu -> Select Advanced options => and then Sim card.
- While holding down the SHIFT key, type MEPD or (MEPPD combines for Vodafone)
- You should now see the five categories listed lock.
- While holding down the SHIFT key, type MEP2 or (MEPP2 handsets for Vodafone) (read more.......)
iPhone Secret Codes
- 3001#12345#* and tap Call. Enter Field Mode.
Field mode reveals many of the inner settings of your iPhone, specifically up-to- date network and cell information. - *#06# Displays your IMEI. No need to tap Call.
IMEI is the unique identifier for your cell phone hardware. Together with your SIM information it identifies you to the provider network. - *777# and tap Call. Account balance for prepaid iPhone. (read more.......)
Nokia Codes
Nokia Code function- # *3370# This Nokia code activates Enhanced Full Rate Codec (EFR) - Your Nokia cell phone uses the best sound quality but talk time is reduced my approx. 5%
- # #3370# Deactivate Enhanced Full Rate Codec (EFR) .
- # *#4720# Activate Half Rate Codec - Your phone uses a lower quality sound but you should gain approx 30% more Talk Time.
- # *#4720# With this Nokia code you can deactivate the Half Rate Codec. (read more.......)
