Spd Upgrade Tool R4.0.0001 Now

Download and extract the ZIP file to an accessible folder (e.g., your Desktop).

Disconnect the USB and power on your device. The first boot may take 5-10 minutes. Common Errors and Fixes spd upgrade tool r4.0.0001

: Power off your phone. Hold the Volume Down (or Volume Up, depending on the model) and connect it to the PC via USB. Download and extract the ZIP file to an accessible folder (e