Xiaomi is the main exception where a SIM card is almost always mandatory.
If you do not have a SIM card, you can attempt to bypass this restriction using unauthorized third-party exploit tools or legacy software workarounds.
Connect your phone to the PC while holding both the and Volume Down buttons simultaneously. This forces the device into BROM (Boot ROM) mode.
If your device uses a Qualcomm Snapdragon processor and lacks an active SIM card for official verification, you can use to force an unlock.
You can now confidently unplug your device, skip through the initial Android setup wizard without adding a Google account, and proceed to flash your custom recoveries, kernels, or custom ROM modifications via your PC's ADB environment. To help you get your device customized properly, tell me: What is the of your phone? how to unlock bootloader without sim card
Before attempting to bypass official unlocking channels, keep the following security factors in mind:
However, is sufficient for 90% of these checks. The SIM card is rarely a technical requirement—it is a business policy requirement. Therefore, with the right tricks, you can bypass it entirely.
Devices from brands like Google (Pixel), OnePlus, and older Motorola phones do not use server-side SIM verification. For those devices, a SIM card is completely optional.
Samsung devices do not require a SIM, but the toggle may be hidden initially on newer models. Connect the device to Wi-Fi . Xiaomi is the main exception where a SIM
A locked bootloader is designed to protect your device from malware and prevent tampering with the operating system. Unlocking it gives you the freedom to flash custom firmware but also removes certain security protections and will wipe all your data.
Reboot your phone into fastboot mode by running: adb reboot bootloader Step 3: Execute the Unlock Command
None (with the workaround described above) Official Unlock Method: Fastboot OEM unlock
Ensure your smartphone or tablet has at least 60% battery life to prevent unexpected shutdowns during critical flashing sequences. This forces the device into BROM (Boot ROM) mode
Go back to the main menu and navigate to System > Developer Options (on some skins, this is under Additional Settings ). Scroll down and locate USB Debugging and toggle it ON .
: This allows your computer to send commands to the device. 3. Setup ADB and Fastboot on PC
Re-run adb devices to verify that your device serial number appears with the text device . Step 3: Fastboot Commands to Unlock