The progress bar at the bottom of SP Flash Tool will turn (detecting device), then Yellow or Grey as it transfers the files.
However, maintaining or repairing an MT6755 device often requires a deep dive into low-level firmware tools—specifically, (Smart Phone Flash Tool). The single most critical file for this process is the "MT6755 scatter file." But not just any scatter file works. You need a verified one. mt6755+scatter+file+verified
Use this for small fixes or flashing a custom recovery. Firmware Upgrade: Use this if the device is boot-looping. The progress bar at the bottom of SP
Some MT6755 stock ROMs have enabled , where the partition sizes or meta-data change after official updates. A non-verified scatter file may skip the secro or protect_f partitions, causing IMEI loss or encryption errors. You need a verified one
The tool will parse the text file and automatically populate the checklist below with individual partition names and paths. Step 2: Choose the Correct Flashing Mode