OnePlus mobile Secret Codes
| CODE | FUNCTION |
|---|---|
| *#66# | Encrypted IMEI |
*#888# | Engineer mode - displays PCB number |
| *#1234# | Software version |
| 1+= (In stock calculator app) | Displays 'NEVER SETTLE' on the calculator app |
| *#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 |
