Go to > Advanced Options > Startup Settings > Click Restart .
Choose if you are updating specific partitions. Avoid "Format All + Download" unless absolutely necessary, as this erases your device's unique IMEI numbers. bq firmware flash tool windows 10 upd
Use an original or high-quality OEM USB cable. Connect it directly to a motherboard USB port (rear port on desktops), avoiding USB hubs. Go to > Advanced Options > Startup Settings > Click Restart