You can do this without a SIM card installed.
: If "OEM Unlocking" is greyed out, connect to Wi-Fi. On some devices, dialing *#*#2432546#*#* can force a "check-in" with servers to enable the toggle. Unlock via Fastboot Connect the phone to a PC with SDK Platform-Tools Open a terminal and type: adb reboot bootloader Once in fastboot mode, type: fastboot flashing unlock fastboot oem unlock for older models). Follow the on-screen prompts on your phone to confirm. Android Open Source Project The Xiaomi Exception Xiaomi devices require a SIM card because the Mi Unlock Tool how to unlock bootloader without sim card
Unlocking an Android bootloader without a SIM card depends heavily on the manufacturer and model. For many devices, like those from You can do this without a SIM card installed
Report generated for technical assistance. Always follow your device’s official guidelines where possible. Unlock via Fastboot Connect the phone to a
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