OnePlus Secret Codes & USSD Dial Codes (2026)

OxygenOS engineering menu

OnePlus secret codes centre on the OxygenOS engineering mode, a single menu that bundles a full component test suite behind one dial string. From there you can run the display and touch tests, check the alert slider, exercise both the earpiece and the loudspeaker, verify the fingerprint sensor and read the raw values from the accelerometer, gyroscope and proximity sensor.

This matters on OnePlus hardware in particular because several long-running community issues, such as green-tint displays, alert slider failures and haptic motor rattle, are far easier to confirm with the built-in test than by eye. Running the test and recording the result gives you concrete evidence for a warranty claim.

OxygenOS also keeps standard Android diagnostic strings for battery statistics and firmware information. As with every brand on this site, the reset family of codes is immediate and irreversible: OnePlus does not present a confirmation dialog once a factory format string is accepted by the dialer, so back up before you experiment.

Checking a used OnePlus handset? Run its IMEI through our free IMEI checker — dial *#06# to reveal the 15-digit number.

Full OnePlus secret code list (41 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.

OnePlus secret codes with description, category and risk level
What it does	Category	Risk level
IMEI Number. Displays the OnePlus device IMEI.	info	Safe — read only
Testing & Usage Menu. Phone info, battery and usage statistics.	diagnostics	Safe — read only
Verify OnePlus Product. Verifies the authenticity of a OnePlus device using the built-in check.	info	Safe — read only
Engineering / Diagnostic Test. Opens OnePlus's engineering mode with a full set of manual component tests.	hardware-test	Safe — read only
PCB / Hardware Version. Shows the mainboard/PCB hardware revision.	info	Safe — read only
Logkit / Feedback Tools. Opens diagnostic logging tools. For developer/support use.Community-reported · unverified	diagnostics	Caution — changes settings
Factory Data Reset (partial). Clears app data, downloaded apps and accounts. Keeps system apps. Back up first.	reset	Caution — changes settings
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
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
Touchscreen Test. Tests touch response across the screen.	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
Call Waiting Status. Shows whether call waiting is currently enabled.	network	Safe — read only
Call Forwarding Status. Shows whether all-call forwarding is active and to which number.	network	Safe — read only
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
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
Build & Version Info. Shows PDA, phone, CSC and build-time information.	info	Safe — read only
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

How to use OnePlus codes

Open the OnePlus 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.

OnePlus secret codes — FAQ

Todos os celulares OnePlus aceitam os mesmos códigos secretos?

Não. O suporte a códigos depende do modelo, da versão do firmware e, em muitos casos, da operadora que forneceu o aparelho. Modelos OnePlus mais antigos costumam disponibilizar mais menus de serviço do que os lançamentos mais recentes, porque os fabricantes restringem gradualmente as ferramentas de engenharia a aplicativos de diagnóstico assinados. Se um código não faz nada, é quase certo que ele foi removido ou desativado na sua versão de software, e não digitado incorretamente.

É seguro discar códigos secretos da OnePlus?

Os códigos que marcamos como "seguros" apenas exibem informações ou abrem um menu de testes somente de leitura, portanto não podem danificar seu celular. Os códigos marcados como "cuidado" alteram uma configuração ou iniciam uma rotina de hardware que você deve entender primeiro, e os marcados como "destrutivos" apagam os dados do usuário instantaneamente, sem caixa de diálogo de confirmação. Sempre faça um backup antes de executar qualquer código da categoria destrutiva.

Por que nada acontece quando digito um código?

Três motivos comuns: o código não é compatível com seu firmware, sua operadora bloqueou a sequência USSD ou o discador exige que você pressione o botão de chamada para aquela sequência específica. Experimente o código com outro chip ou no modo avião e confira cada caractere, incluindo o asterisco inicial e o símbolo de cerquilha final.

Usar esses códigos anula a garantia do meu OnePlus?

A simples leitura de informações de diagnóstico não anula a garantia. No entanto, alterar configurações de bandas de rádio, executar operações de gravação em um menu de engenharia ou realizar uma formatação de fábrica pode deixar seu dispositivo em uma condição que a assistência técnica considere causada pelo usuário. Limite-se a códigos somente de leitura, a menos que esteja seguindo orientações oficiais de reparo.

Esses códigos podem desbloquear um celular OnePlus bloqueado por operadora?

Não. O desbloqueio de rede exige um código de desbloqueio emitido pela operadora ou uma solicitação oficial de desbloqueio à sua operadora. Qualquer site que prometa um código de discagem universal e gratuito para desbloqueio está enganando você. Os códigos listados aqui apenas disponibilizam diagnósticos, status da rede, informações do firmware e rotinas de restauração de fábrica.

Como encontro meu IMEI em um dispositivo OnePlus?

Disque *#06# em qualquer celular GSM ou LTE, incluindo todos os modelos OnePlus, e o IMEI aparecerá imediatamente. Você também pode validar o número com nosso verificador de IMEI, que executa a soma de verificação de Luhn usada pela GSMA para detectar números IMEI digitados incorretamente ou inventados.