One challenge you might face when using the Mediatek auth bypass is getting your device into BROM mode. This is synonymous with a detection as Mediatek USB Port. Different devices have different button combos so I’m assuming you’ve tried all but failed still.
There’s a simple trick to achieve this using SP flash tool. Recall that the auth bypass consists of two main steps:
- Installing a filter using LIBUSB
- Disabling auth using Bypass Utility
Launch SP flash tool, load the scatter file for your model with at least one box ticked (file to be flashed) then click Download (with green arrow above it). This is like setting SP flash tool for flashing before connecting the device.
Next, you hold the BROM button combo (you’ll have to experiment excluding Power button) and connect the device to PC. SP flash tool will fail with an error message (this is expected) but the device will remain as Mediatek USB Port. You can then highlight it and click Install in LIBUSB
Running Bypass Utility’s Main.py
Once filter is installed, you close the SP flash tool error and re-click Download. After this, you run the main.py command. Once you see Waiting for device, hold the same button combo used to install filter then connect to PC again. SP flash tool will fail again but Bypass Utility will detect the device as Mediatek USB Port again and swing into action.
Once watchdog is disabled, you can then go ahead with whatever operation you intend to carry out.
This has been tested on the LG Stylo 6 and LG X220PM (Tribute Empire)