If the drivers are installed correctly, the tool will recognize the device, and a progress bar will appear. You will see a red bar (loading bootloader), followed by a yellow bar (writing partitions), and finally, purple bars (verification).
Once complete, a "Download OK" dialog box will appear. You may now disconnect the phone and power it on.
To successfully flash an MT6877 device, you need three specific components: mt6877 flash tool
The phone’s UFS storage was now accessible. The SP Flash Tool began pouring data. The preloader went first—this was the most dangerous part. If power failed here, the phone would be a permanent brick.
[Write] preloader_b: 256KB... OK.
[Write] boot_a: 32MB... OK.
[Write] super: 2.5GB... 12%... 45%... 89%... If the drivers are installed correctly, the tool
The blue progress bar on the phone’s screen (a hidden preloader display) flickered to life. It was a ghost in the machine. The phone was waking up.
At 98%, Leo held his breath. A power outage? A USB disconnect? That would ruin everything. But the MT6877’s error correction and the tool’s checksum verification kept the data flowing. To successfully flash an MT6877 device, you need
[Write] userdata: 117GB... Formatting.
[Info] All partitions written successfully.
[Info] Verification checksum: PASS.
[Info] Flash completed successfully.