| CODE | FUNCTION |
|---|---|
| *#*#3424#*#* | HTC test program |
| ##786# | Phone reset menu |
| *#06# | Show phone's IMEI |
| *#07# | Displays the Specific Absorption Rate (SAR) value of the device |
| *#*#225#*#* | Displays calendar storage info |
| *#*#426#*#* | Google Play Services info or Firebase Cloud Messaging diagnostics (Select devices only) |
| *#9900# | System dump mode |
| ##778 (+green/call button) | EPST menu |
| *#7465625# | Device lock status |
##3282# | EPST menu |
| ##3424# | Diagnostic mode |
| ##33284# | Field test |
| ##8626337# | Launch Vocoder |
| *#*#4636#*#* | HTC info menu |
