How To | Unlock Bootloader Without Sim Card [upd]

Unlocking a bootloader without a SIM card is possible for many Android devices, though the level of difficulty depends entirely on the manufacturer’s security policies. While Google and Motorola devices typically only require an internet connection, brands like Xiaomi have strict SIM-based verification requirements. 🏁 Direct Answer

Step 3: Enable USB Debugging

1. In the same Developer Options menu, find USB Debugging.
2. Enable it. This allows the computer to communicate with the phone while it is powered on.

Xiaomi is the most restrictive. Officially, you must have a SIM card with mobile data to "bind" your Mi Account to the device in the settings menu. Official Method: Requires a SIM to verify your identity. how to unlock bootloader without sim card

Fortunately, there are several methods to unlock the bootloader without a SIM card. These methods may vary depending on the device manufacturer and model, but we'll cover some of the most common techniques. Unlocking a bootloader without a SIM card is

Notes:

• fastboot devices

1. SIM Unlocking (Network Unlock): This allows your phone to use SIM cards from different carriers. This process often does require a SIM card from a different network to prompt the phone for an unlock code, or it requires the device to be active on a network to receive an unlock signal from the carrier.
2. Bootloader Unlocking: This allows the operating system partition to be written to. This process is handled by the device's hardware interface (Fastboot/Download Mode) and the manufacturer's servers (for token verification).

Conclusion

While many manufacturers artificially require a SIM card for bootloader unlocking, it’s often possible to bypass—especially on devices with MediaTek chips, older Android versions, or unlocked bootloader policies (Pixel, Moto, OnePlus). For locked-down brands like Xiaomi or Samsung, a dummy SIM is the simplest solution. In the same Developer Options menu, find USB Debugging

1. Use Wi‑Fi for device network access and sign in to the required vendor account on the phone (if the flow requires signing in).
2. If a web portal requires code shown on device, use adb to capture the code (if accessible) or take a screenshot after enabling adb and run: