Rui CarmoI keep forgetting these, so here’s a list.
Plus there are some day-to-day ones (not all of these are GSM related, some are hard-coded key sequences manufacturers build in):
| Code | Applies To | Function | Notes |
|---|---|---|---|
*#21# |
Any | Queries forwarding status | These are GSM network inquiry codes |
*#30# |
Any | Calling Line Presentation status | |
*3001#12345# |
iPhone, Nokia, a few others | Enter field mode | |
*#06# |
All | Display “IMEI”:Wikipedia:International_Mobile_Equipment_Identity:IMEI | |
#67#number#11# |
Network | Call forward on busy | Voicemail prefix for VF-PT is 661 |
##67# |
Network | Remove call forward on busy | |
*#06# |
All | Display IMEI | Some Motorola phones tend to crash on this one. |
*#0000# |
Nokia | Display firmware version | |
*#2820# |
Nokia | Display Bluetooth MAC address | |
*#7780# |
Nokia | Restore factory settings and preserve user data | |
*#7370# |
Nokia | Deep format/Restore factory settings | |
*#war0anty# |
Nokia | Warranty Dates | Display extra info like build and repaired date |
| right,star,left,left, star,left,star |
SonyEricsson | Service Menus | Preserved since T68 and expanded in 2007 SEMC platforms |