Everything About Mobile Phones

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• Press *3370# to activate the Enhanced Full Rate Codec or EFR. What it does is, it uses the best sound quality but talktime will be reduced by approximately 5%.
• Press #3370# to deactivate Enhanced Full Rate Codec or EFR.
• Press *#4720# to activate Half Rate Codec. The mobile phone will use a lower quality sound but talktime will increase by approximately 30% more.
• Press *#4720# to deactivate Half Rate Codec.
• Press #0000# your phone will display the current software version.
• The first line is the Software Version
• The second line is the Software release date

The third line is the Compression Type

• Press *#9999# to display the phone’s software version if in case *#0000# does not work.
• Press *#06# to display the International Mobile Equipment Identity or IMEI Number.
• Press #pw+1234567890+1# for Provider Lock Status. You can use ‘*’ to get the ‘p,w’ and ‘+’ symbols.
• Press #pw+1234567890+2# for Network Lock Status. You can use ‘*’ to get the ‘p,w’ and ‘+’ symbols.
• Press #pw+1234567890+3# for Country Lock Status. You can use ‘*’ to get the “p,w” and ‘+’ symbols.