Google
*#*#4636#*#*
Pixel phone info
Standard Android testing menu used heavily on Pixel devices.
Android secret codes
Search engineering and service dialer codes by brand. Codes vary by model and software build — use them for diagnostics, not as a substitute for authorized repair workflows.
← All tools · USB drivers · Device dashboard
Huawei
*#*#147852369#*#*
Background settings
Alternate project menu entry on some Huawei models.
Huawei
*#*#2846579#*#*
Project menu
Huawei project / background settings menu on older EMUI devices.
Infinix
*#*#3646633#*#*
MTK engineer mode
MediaTek EngineerMode on many Infinix / Transsion devices.
MediaTek
*#*#3646633#*#*
EngineerMode
Classic MTK EngineerMode dialer entry (device-dependent).
Motorola
*#*#2486#*#*
Hidden menu
Hidden diagnostics on some Motorola models.
Nokia
*#*#22763#*#*
Care suite / test
Care / test entry on selected HMD Nokia Android devices.
OnePlus
*#808#
Engineering mode
Engineering mode on selected OnePlus OxygenOS builds.
Oppo
*#899#
Engineering mode
Engineering / after-sales test menu on many Oppo / ColorOS phones.
Oppo
*#83781#
Engineering mode (alt)
Alternate engineering menu on selected Oppo devices.
Realme
*#6776#
Software info
Software information on many Realme devices.
Samsung
*#0228#
Battery status
Battery ADC / voltage diagnostics on many Samsung models.
Samsung
*#0*#
Hardware test menu
Samsung service mode for display, sensors, touch, and speakers.
Samsung
*#0011#
Service mode (RF)
RF / network service mode on selected Samsung devices.
Samsung
*#1234#
Software version
Shows AP / CP / CSC firmware version strings.
Samsung
*#12580*369#
SW & HW info
Detailed software and hardware information.
Samsung
*#0808#
USB settings
USB configuration menu used for ADB / MTP diagnostics.
Tecno
*#*#3646633#*#*
MTK engineer mode
MediaTek EngineerMode on many Tecno devices.
Universal
*#*#232337#*#*
Bluetooth address
Displays Bluetooth MAC on many Android builds.
Universal
*#06#
Display IMEI
Shows device IMEI / MEID on most GSM phones.
Universal
*#*#7780#*#*
Factory data reset
Triggers factory reset prompt on many AOSP builds. Use with care.
Universal
*#*#2767*3855#*#*
Full wipe (dangerous)
Hard reset on some devices. Prefer Settings reset when possible.
Universal
*#*#4636#*#*
Testing menu
Android testing menu: phone info, usage, Wi-Fi information.
Universal
*#*#2663#*#*
Touch screen version
Shows touch firmware version on some devices.
Universal
*#*#0842#*#*
Vibration test
Runs vibration hardware test where supported.
Universal
*#*#232338#*#*
Wi-Fi MAC
Displays Wi-Fi MAC address on many Android builds.
Vivo
*#*#112#*#*
Factory / test mode
Factory test entry on many Vivo FunTouch / OriginOS builds.
Xiaomi
*#*#64663#*#*
CIT (alternate)
Alternate CIT entry on some Xiaomi builds.
Xiaomi
*#*#6484#*#*
CIT / hardware test
Opens CIT / hardware test on many MIUI / HyperOS devices.
Secret codes FAQ
Why does a code do nothing on my phone?
OEMs remove or rename dialer codes often. Treat this list as a technician reference, not a guarantee for every firmware.
Can these codes unlock FRP or network locks?
No. Service menus are for diagnostics. FRP and carrier unlock usually need authorized tools or a verified technician job.