Different manufacturers have vastly different requirements when it comes to SIM cards. Here’s a breakdown by brand:
Here’s a quick reference for how different manufacturers approach bootloader unlocking. how to unlock bootloader without sim card
: Return to Developer Options to see if the greyed-out OEM Unlocking button is now accessible. Step 3: Utilize Fastboot Command Line Interface how to unlock bootloader without sim card
You will likely stop receiving automatic system updates once the bootloader is unlocked. how to unlock bootloader without sim card
Go back to the main menu and navigate to System > Developer Options .
Use a tool like QFIL or MiFlash (in EDL mode) along with a modified software patch or firehose file to alter the device's configuration partition ( devinfo ) to switch the bootloader flag from locked to unlocked. Method 2: Brand-Specific Workarounds