Extract and install the SPD Drivers on your PC. You may need to manually update them via Device Manager if the phone isn't detected.
A high-quality USB cable and at least 50% battery charge. Step-by-Step Flashing Guide v75 flash file spd
If you'd like, I can help you find for the V75 PAC file or a driver installation guide . Extract and install the SPD Drivers on your PC
message, unplug the device, reinsert the battery, and power it on. SPD driver unplug the device
: Necessary for your PC to recognize the device in download mode. SPD Upgrade Tool
V75_SPD_SC7731_V1.0_2021.zip