If your Xiaomi device runs a MediaTek (MTK) processor or certain older Qualcomm Snapdragon chipsets, you can bypass the official Mi Unlock Tool entirely by utilizing low-level bootROM exploits.
In some cases, a factory reset while connected to Wi-Fi, skipping SIM setup again, can activate the option.
The tool will exploit the MediaTek Boot ROM (BROM) hardware vulnerability and instantly unlock the bootloader, completely skipping the SIM card and account binding checks. Approach B: Borrowing a Temporary SIM
For a visual walkthrough on how to handle manufacturer-specific unlock processes without a PC or SIM: 08:10 how to unlock bootloader without sim card
Scroll down to the and tap it rapidly seven times. You will see a toast notification saying, "You are now a developer!" Step 2: Activate OEM Unlocking over Wi-Fi
Motorola requires an unlock key emailed to you via their official developer portal.
Go to > Software Update and tap Download and Install (you don't need to finish the update; this just triggers a "phone home" to Samsung). If your Xiaomi device runs a MediaTek (MTK)
If official methods fail without a SIM card, some manufacturers allow unlocking via specific developer tools.
Xiaomi requires you to apply for permission via the "Mi Unlock Tool." Traditionally, this required a SIM card linked to a Xiaomi account with active mobile data. However, Xiaomi quietly updated the policy.
Important: unlocking the bootloader may void warranty, erase all data, and can brick your device if done incorrectly. Back up any data you can before proceeding. Approach B: Borrowing a Temporary SIM For a
In the same menu, enable USB Debugging . Connect to PC: Connect your phone to the computer.
For most Android phones, a SIM card is completely optional. You only need a stable Wi-Fi connection and a computer with ADB and Fastboot tools .
: Removes carrier restrictions so the phone can work with any network provider.
Xiaomi's Mi Unlock tool famously requires mobile data via a SIM card to link your Mi Account. If you lack a SIM card, you must use legacy tools or custom community software to trick the device.