There was a thread noticing all the codes but they are not documented so this might be useful.
Disclaimer: I am neither resposible to accuracy of description of these codes nor any damage/loss caused by using codes improperly/recklessly.
Notice: Codes here are based on H2OS (which is the stock ROM in China rather than OxygenOS), so some of the codes may not be available in OxygenOS.
Disclaimer: I am neither resposible to accuracy of description of these codes nor any damage/loss caused by using codes improperly/recklessly.
Notice: Codes here are based on H2OS (which is the stock ROM in China rather than OxygenOS), so some of the codes may not be available in OxygenOS.
Language
*#008# : Change system language to zh-CN immediately.
*#67760044# : Change system language to en-US immediately.
Diagnostic
*#10000# : Show diagnostic results. If you have never cleared them manually or messed with diagnostic menu or functions before, this is your in-factory test result, which should be all OK.
*#800# : System logging menu.
*#808# :Don't operate functions recklessly in this menu. Diagnostic mode main menu.
*#802# : GPS test.
*#803# : Wi-Fi test.
*#804# : Mobile network searching test.
*#805# : Bluetooth test.
*#806# : Don't use this code recklessly since it would take long and may cause other issues if being stopped forcefully. Burn-in quality test.
*#807# : Auto test, which tests lot of things one by one.
*#809# : Microphone Loopback test.
*#814# : TD-SCDMA network searching test.
*#824# : WCDMA network searching test.
*#834# : LTE network searching test.
*#900# : Rear camera test.
Information
*#1234# : Show a dialog box about SoftwareVersion.
*#66# : Show IMEI and encrypted IMEI.
*#6776# : Show more about software version compared to 1234 code.
*#888# : Show motherboard PCB ID and it's QR code.
*##*37847# : Show hardware components' model and suppliers.
Engineering
*#36446337# : Don't operate functions recklessly in this menu. Engineering mode main menu.
*#268# : Don't use this code recklessly as it may damage baseband. NV param testing and calibration.
*#801# : Switches for enginners.
*##*8110# : OTA test mode switch. This switch could probably be used for blocking OTAs.
Others
*#8778# : Factory reset. You will lose all your data.
*#911# : You may lose all your data. This would send you back to first-time setup page after reboot.
*#99# : Screen always on. Enter the code again to disable.
Easter Egg
Not sure if ever presented in OxygenOS.
Game Space - Options - Fnatic Mode - Click the Fnatic icon repetitively - Type "alwaysfnatic" in the textbox poped up - New hidden wallpapers !
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