Here’s a quick reference for how different manufacturers approach bootloader unlocking.
If your phone is not a Xiaomi, you can typically bypass the SIM requirement by following these steps: Enable Developer Options Settings > About Phone Build Number
If your Xiaomi or Redmi device uses a MediaTek (MTK) processor, you can bypass the official Mi Unlock Tool entirely using an open-source exploit called . This completely circumvents the need for a SIM card, a Mi Account, or the standard 168-hour waiting period. Prerequisites: A PC running Windows or Linux. Python installed on your PC. MTK Drivers and USBDk drivers installed. The open-source MTKClient tool downloaded from GitHub. Step-by-Step Execution: Turn off your MediaTek phone completely.
However, the "how" depends heavily on your device manufacturer. While brands like Google and OnePlus make it easy, others like Xiaomi traditionally require a SIM card for account verification. Before You Begin: The Golden Rules how to unlock bootloader without sim card
However, there are specific hurdles you might face without a SIM card, primarily related to .
Look for "patched" versions of the Mi Flash Unlock tool on forums like XDA Developers. These community-made versions sometimes bypass the "Insert SIM" check on the PC side. Method 3: Google Pixel and OnePlus Devices
Some devices (like Google Pixel or OnePlus) use the SIM card strictly to verify region-specific policies via a network ping. You can simulate this over a local network. : Join a stable, high-speed Wi-Fi network. Here’s a quick reference for how different manufacturers
Method 3: The Official Manufacturer Token Method (Asus, Sony)
If you’re determined to unlock without a SIM, prioritize:
Best for: Pixel, OnePlus, Nothing, and many Motorola/Sony devices. Prerequisites: A PC running Windows or Linux
Some older MIUI versions allowed binding over Wi-Fi if you used a VPN set to a specific region (like China or India).
You must prepend ./ to your commands (e.g., ./fastboot flashing unlock ).
A. Fastboot OEM/unlock method (most Nexus/Pixel, many other devices)