*#0228#
Warning: Secret (USSD/engineering) codes can access hidden menus and change system settings. Use caution — some actions may reset your device, erase data, or affect network connectivity. Back up important data first. how to use secret codes on oppo a9 2020 upd
– Manual Hardware Test : An alternative engineering menu for specific manual component tests. – Manual Hardware Test : An alternative engineering
: Some codes found online can trigger a factory reset (e.g., *#8778# ) and erase all your data immediately. how to use secret codes on oppo a9 2020 upd
| Code | Function | |------|----------| | *#06# | Shows IMEI numbers (unique device ID) | | *#*#4636#*#* | Phone info, battery stats, usage statistics (partial functionality) | | *#*#225#*#* | Calendar & events info stored on device | | *#*#426#*#* | Google Play Services diagnostic (FCM diagnostic) | | *#*#232338#*#* | Shows WiFi MAC address | | *#*#1234#*#* | PDA / firmware version (limited on new builds) | | *#*#44336#*#* | Software version / build time | | *#800# | Oppo Logkit (hidden system log tool – enter after dialing) |