Fix Vivo S3 Plus Stuck on Fastboot Mode After Flash – Firmware Flash File (MT6575)
If your Vivo S3 Plus is stuck on fastboot mode after flashing or rebooting, don’t worry — this detailed guide helps you fix the issue using the official firmware and DA Auth file via SP Flash Tool. This fix applies to MTK-based Vivo S3 Plus models suffering from boot-related errors.
Problem Overview: Fastboot Mode Loop
The Vivo S3 Plus sometimes enters a fastboot loop due to:
- Corrupted or partial firmware flash
- Wrong scatter file or preloader configuration
- Missing or incompatible DA/Auth file
- Unsupported Android boot.img signature (dm-verity error)
Solution: Full Flash with Verified Firmware & DA File
Flashing with the correct combination of DA file, scatter firmware, and SP Flash Tool ensures that your device reboots properly after flashing.
Before You Flash:
Important: Charge your phone to at least 60%. Backup any important data if possible. Use only the firmware version specific to your device and chipset (MT6575).
How to Flash Vivo S3 Plus – Step-by-Step Guide
- Install MTK USB Drivers on your Windows PC.
- Extract both firmware and flash tool ZIP files using WinRAR or 7-Zip.
- Run flash_tool.exe inside the SP Flash Tool folder.
- Load the scatter file:
MT6575_Android_scatter.txt. - Under "Download Agent", load the official DA Auth file provided in the firmware.
- Select "Download Only" mode.
- Click on Download in the tool.
- Turn off your Vivo S3 Plus. Hold volume down and connect it to PC via USB.
- The flashing process will begin automatically.
After Flashing
Once flashing is complete, disconnect your phone and power it on. The Vivo logo should appear, and the phone will boot normally — no more fastboot loop!
Still stuck on fastboot?
- Try Format All + Download (only if IMEI is backed up).
- Use another USB port or cable and reflash.
Download Links
| File Name |
|---|
| Vivo S3 Plus Firmware – ALPS.ICS.MP.V2 |
| SP Flash Tool v5.1812 |
| MediaTek USB Drivers |
Need Help?
If the issue persists after flashing, visit Firmware4Mobile.com and search for your exact build version or post your issue in the comments section for expert help.