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: Turn off your phone. Hold the Volume Up button while connecting it to your PC via USB. The screen should display "Download Mode" or "Firmware Update".

Faulty cables cause 90% of flashing failures. Use the cable that came with your phone.

LGUP is a powerful service tool that goes beyond standard over-the-air (FOTA) updates. Key features include:

Custom ROM install (to a ROM labeled v1.1)