Xiaomi Secret Codes & USSD Dial Codes (2026)
MIUI / HyperOS engineering codes
Xiaomi secret codes cover both MIUI and the newer HyperOS builds, and the ecosystem is unusually generous with engineering access. The central entry point is the CIT hardware test suite, which walks through the display, touch panel, speakers, receiver, microphones, vibration motor, proximity and light sensors, gyroscope, cameras, Wi-Fi, Bluetooth and fingerprint reader in sequence, marking each subsystem pass or fail.
Alongside CIT, Xiaomi keeps standard Android diagnostic strings for battery and usage statistics, plus firmware and hardware version screens that tell you the exact ROM channel your device is running. That is useful before an update, a region switch or a bootloader unlock request, because Xiaomi's global, EEA, Indian and Chinese builds behave differently.
One warning specific to Xiaomi: several engineering menus on older MIUI versions expose write operations for the modem and calibration data. Reading values is harmless, but committing changes in those screens can degrade cellular performance in a way that only a full flash will repair. Stick to the codes marked safe on this page unless you are following manufacturer service documentation.
Checking a used Xiaomi handset? Run its IMEI through our free IMEI checker — dial *#06# to reveal the 15-digit number.
Full Xiaomi secret code list (43 codes)
Every code below is documented from public device and service documentation. None of these codes erase user data, but always read the risk column first.
| Code | What it does | Category | Risk level |
|---|---|---|---|
| Testing & Usage Menu. Phone info, battery and usage statistics. | diagnostics | Safe — read only | |
| IMEI Number. Displays the device IMEI / MEID. | info | Safe — read only | |
| Build & Version Info. Shows PDA, CSC and build-time information. | info | Safe — read only | |
| Service Info. Displays service info including SIM and RF details on Xiaomi devices. | info | Safe — read only | |
| Engineering Menu. Opens the deep engineering menu (some regions) for background debugging. | diagnostic | Caution — changes settings | |
| Hardware Test (CIT). Opens Xiaomi's full component test suite (screen, sensors, camera, speaker). | hardware-test | Safe — read only | |
| Hardware Test (legacy). Older hardware test menu on some MIUI versions. | hardware-test | Safe — read only | |
| Bug Report / Dumpstate. Generates a diagnostic bug report (dumpstate/logcat) on supported builds. | diagnostics | Safe — read only | |
| Touchscreen Test. Tests touch response across the display. | hardware-test | Safe — read only | |
| Hardware Test (alt). Alternative component test menu on some MIUI/HyperOS builds.Community-reported · unverified | hardware-test | Safe — read only | |
| Call Forwarding Status. Shows whether all-call forwarding is active and to which number. | network | Safe — read only | |
| Call Waiting Status. Shows whether call waiting is currently enabled. | network | Safe — read only | |
| Forwarding When Unanswered. Shows the number that receives calls you don't answer. | network | Safe — read only | |
| Forwarding When Unreachable. Shows where calls go when your phone is off or has no signal. | network | Safe — read only | |
| Forwarding When Busy. Shows the number that receives calls while you're on another call. | network | Safe — read only | |
| Cancel All Forwarding. Turns off every type of call forwarding on the line. | network | Caution — changes settings | |
| Caller ID Status. Shows whether your number is hidden or shown on outgoing calls. | network | Safe — read only | |
| Factory Data Reset (partial). Clears app data, downloaded apps and accounts. Keeps system apps. Back up first. | reset | Caution — changes settings | |
| Wi-Fi MAC Address. Displays the device's Wi-Fi MAC address. | info | Safe — read only | |
| GPS Test. Runs a quick GPS test to verify satellite lock and location performance. | diagnostics | Safe — read only | |
| Wireless LAN Test. Opens the Wi-Fi / wireless LAN test screen. | hardware-test | Safe — read only | |
| Vibration & Backlight Test. Runs a test cycle for the vibration motor and screen backlight. | hardware-test | Safe — read only | |
| LCD Display Test. Opens the screen test suite (colors, dead pixels, touch). | hardware-test | Safe — read only | |
| Proximity Sensor Test. Verifies the proximity sensor used to blank the screen during calls. | hardware-test | Safe — read only | |
| Audio / Melody Test. Runs a speaker and audio playback test. | hardware-test | Safe — read only | |
| Bluetooth Test. Opens the Bluetooth hardware test screen. | hardware-test | Safe — read only | |
| Camera Information. Shows camera firmware details. Avoid the firmware-update option unless you know what you're doing. | diagnostics | Caution — changes settings | |
| Field Test (GSM). Runs a GSM field/signal test. | diagnostics | Safe — read only | |
| Service Mode. Opens the service/test mode menu on many devices. Advanced — for diagnostics only. | diagnostics | Caution — changes settings | |
| Call Barring Status. Shows whether outgoing/incoming call barring is switched on. | network | Safe — read only | |
| Enable Call Waiting. Turns on call waiting so a second caller can reach you mid-call. | network | Caution — changes settings | |
| Disable Call Waiting. Turns off call waiting. | network | Caution — changes settings | |
| Touchscreen Firmware Version. Displays the touchscreen controller firmware version. | hardware-test | Safe — read only | |
| RAM Version. Shows the device RAM type/version. | info | Safe — read only | |
| Packet Loopback Test. Runs an audio/packet loopback hardware test. | hardware-test | Safe — read only | |
| Melody / Audio Test. Plays a test melody to check the speaker. | hardware-test | Safe — read only | |
| Bluetooth Address. Displays the device's Bluetooth MAC address. | info | Safe — read only | |
| Advanced GPS Test. Opens a detailed GPS/location diagnostics screen. | diagnostics | Safe — read only | |
| PDA / Phone / RF Info. Shows PDA, phone, hardware and RF firmware version details. | info | Safe — read only | |
| Power-Button Behaviour. Changes what the power button does on long-press (end call vs menu). Changes a setting. | diagnostics | Caution — changes settings | |
| Backup Media Files. Opens a file-copy screen to back up media (photos, videos, audio). | diagnostics | Caution — changes settings | |
| MediaTek Engineer Mode. Opens the engineer menu on MediaTek (MTK) chipset phones. Advanced — changing values can affect radios. | diagnostics | Caution — changes settings | |
| Google Talk Service Monitor. Legacy GTalk service monitor screen (older Android).Community-reported · unverified | diagnostics | Safe — read only |
How to use Xiaomi codes
- Open the Xiaomi dialer and go to the keypad, exactly as if you were dialling a number.
- Type the code precisely as shown, including the leading
*and the trailing#. Autocorrect and paste can drop characters, so type it out. - Most sequences fire the moment the final character is entered — you usually do not press call.
- If the screen does not change, press the call button once; a few USSD strings need it.
- Back up photos, messages and app data before running anything marked destructive, then confirm you are on the right device.
- Nothing at all happening usually means the code is disabled on your firmware or blocked by your carrier — it is not a fault with your handset.
Xiaomi secret codes — FAQ
Sinusuportahan ba ng lahat ng teleponong Xiaomi ang parehong mga lihim na kodigo?
Hindi. Nakadepende ang suporta sa mga kodigo sa modelo, bersiyon ng firmware at, sa maraming pagkakataon, sa kompanya ng serbisyong mobile na nagbigay ng telepono. Kadalasang mas maraming menu para sa pagseserbisyo ang naa-access sa mga lumang modelong Xiaomi kaysa sa mga pinakabagong labas, dahil unti-unting nililimitahan ng mga tagagawa ang pag-access sa mga kasangkapang pang-inhinyeriya sa mga app sa pagsusuri na may digital na lagda. Kung walang nangyayari sa isang kodigo, halos tiyak na inalis o hindi na ito pinagana sa bersiyon ng iyong sistema, sa halip na mali ang pagkaka-type mo.
Ligtas bang i-dial ang mga lihim na kodigo ng Xiaomi?
Ang mga kodigong minamarkahan naming "ligtas" ay nagpapakita lang ng impormasyon o nagbubukas ng menu ng pagsusuri na hindi maaaring baguhin, kaya hindi nila masisira ang iyong telepono. Ang mga kodigong may markang "mag-ingat" ay nagbabago ng isang setting o nagsisimula ng proseso sa mga pisikal na bahagi na dapat mo munang maunawaan, at ang mga kodigong may markang "mapanira" ay agad na nagbubura ng datos ng gumagamit nang hindi humihingi ng kumpirmasyon. Palaging gumawa ng reserbang kopya bago magpatakbo ng anumang nasa kategoryang mapanira.
Bakit walang nangyayari kapag naglalagay ako ng kodigo?
Tatlong karaniwang dahilan: hindi sinusuportahan ng iyong firmware ang kodigo, hinarangan ng iyong tagapagbigay ng serbisyong pang-network ang sunod-sunod na mga karakter ng USSD, o hinihingi ng pang-dial na pindutin mo ang pindutang pantawag para sa partikular na pagkakasunod-sunod na iyon. Subukan ang kodigo gamit ang ibang SIM o habang nasa modong pang-eroplano, at tiyaking tama ang bawat karakter, kabilang ang asterisk sa unahan at ang tandang hash sa hulihan.
Mawawalan ba ng bisa ang garantiya ng aking Xiaomi kapag ginamit ko ang mga kodigong ito?
Hindi nawawalan ng bisa ang garantiya sa simpleng pagbabasa ng impormasyon sa pagsusuri. Gayunman, ang pagbabago ng mga setting ng radio band, pagpapatakbo ng mga operasyong nagsusulat ng datos sa menu para sa inhinyero, o pag-format pabalik sa kalagayan mula sa pabrika ay maaaring mag-iwan sa iyong aparato sa kondisyong ituturing ng sentro ng pagkukumpuni na dulot ng gumagamit. Gumamit lamang ng mga code na nagbabasa ng impormasyon maliban kung sinusunod mo ang opisyal na gabay sa pagkukumpuni.
Maaari bang alisin ng mga code na ito ang pagkakakandado sa network ng isang Xiaomi na telepono?
Hindi. Para maalis ang pagkakakandado sa network, kailangan ng code na ibinigay ng iyong kompanya ng telekomunikasyon o ng opisyal na kahilingan sa kanila. Nililinlang ka ng anumang site na nangangako ng libreng dial code na makakapag-unlock ng lahat ng telepono. Ang mga code na nakalista rito ay para lamang maipakita ang impormasyon sa pagsusuri, katayuan ng network, impormasyon ng firmware, at mga pamamaraan ng pagbabalik sa mga setting ng pabrika.
Paano ko mahahanap ang aking IMEI sa isang Xiaomi na aparato?
I-dial ang *#06# sa anumang GSM o LTE na telepono, kabilang ang lahat ng modelo ng Xiaomi, at agad na lilitaw ang IMEI. Maaari mo ring tiyakin kung wasto ang numero gamit ang aming tagasuri ng IMEI, na gumagamit ng Luhn checksum na ginagamit ng GSMA upang matukoy ang mga IMEI na mali ang pagkaka-type o gawa-gawa lamang.
Mga Gabay sa Paglutas ng Problema sa Xiaomi
- Xiaomi Overheating — Causes & Fixes (2026)
- Xiaomi Battery Draining Fast — Causes & Fixes (2026)
- Xiaomi Charging Slowly — Causes & Fixes (2026)
- Xiaomi Touchscreen Not Working — Causes & Fixes (2026)
- Xiaomi Screen Not Working — Causes & Fixes (2026)
- Xiaomi Wi-Fi Not Connecting — Causes & Fixes (2026)