Spd Upgrade Tool R4.0.0001 ((install)) -

Changing firmware, updating the system, erasing data, and backing up or restoring device partitions.

Click the "Settings" button (two gears) if you need to choose specific partitions to flash, though it's usually best to leave these at default for a standard upgrade. spd upgrade tool r4.0.0001

Hold the or Volume Up key (the "Boot Key") while connecting it to the PC via USB. Changing firmware, updating the system, erasing data, and

Unlike the SP Flash Tool (used for MediaTek/MTK CPUs), the SPD Upgrade Tool is dedicated solely to Spreadtrum/Unisoc hardware. Key Features of Version R4.0.0001 updating the system

A simple, no-frills layout that prioritizes ease of use.

It exclusively works with .pac and .p5c firmware formats.