The tool will show a blue progress bar. Once it says "Passed" in green, unplug and reboot. Troubleshooting Common Issues
This is usually a "soft brick." Try a "Wipe Data/Factory Reset" from the recovery menu (Power + Vol Up).
A massive database for Chinese and budget chipsets (some files are premium, but many AOSP builds are free).
Download the latest version of the SPD Upgrade Tool (also known as ResearchDownload).
When searching for free firmware, the "1H10" variant requires caution. You should always look for "Scatter" or "PAC" files compatible with the . Common repositories for these files include:
Most devices using the SP7731E come loaded with heavy "skins" or bloatware that eat up the limited RAM (usually 1GB or 2GB). Switching to (Android Open Source Project - AOSP) offers several benefits: