Positivo Twist 4 S514 is a basic Android 10 Go phone, popular in Latin America for its low cost, quad-core SC7731E (Spreadtrum/Unisoc) chipset, and lightweight build. Users report frequent problems: stuck on boot logo (after failed updates), FRP lock after reset, sluggish system, battery draining too quickly, loss of signal, and permanent fastboot mode if flashing fails. Some versions suffer from random restarts, touchscreen lag, internal storage errors, and being unable to recover after pattern/PIN lock or virus infection. Using the correct SPD firmware file restores bricked and unstable phones, fixes Google account lock, and fully resets system partitions.
Positivo Twist 4 S514 Firmware Details
| Device Name | Positivo Twist 4 S514 |
| Chipset | Spreadtrum SC7731E (Quad-core 1.3GHz) |
| RAM/Storage | 1GB RAM / 32GB (microSD support) |
| Display | 5.5″ FWVGA+, Multitouch LCD |
| Camera | 8MP Rear, 5MP Front |
| OS | Android 10 (Go Edition) |
| Battery | Removable, 2200mAh |
| Firmware Filenames | Positivo_Twist_4_S514_210615_10_SPD.zip Positivo_Twist_4_S514_260121_SPD.zip |
| Firmware Version | 210615_10 / 260121 |
| File Size | 984MB / 657MB |
| File Type | .zip (SPD/Unisoc firmware) |
| Flashing Tool | SPD/Unisoc Upgrade Tool (ResearchDownload/UpgradeDownload) |
Warning:
Do not flash firmware from different S514 hardware revisions or unknown sources—incorrect ROM can permanently brick the phone, break the touchscreen, or cause camera/storage loss. Always back up user data and check your build/date before flashing. Battery must be above 60%.
Download Official Firmware for Positivo Twist 4 S514
Carefully select matching version for your serial/build. Both files repair system failure, recover from logo hang, FRP/account lock, virus attack, boot, network, or dead device (SPD-based).
Firmware #1:
📄 Filename: Positivo_Twist_4_S514_210615_10_SPD.zip
📦 Size: 984MB
⬇️ Download Link (Google Drive)
Firmware #2:
📄 Filename: Positivo_Twist_4_S514_260121_SPD.zip
📦 Size: 657MB
⬇️ Download Link (Google Drive)
How to Flash the Firmware
- Download the correct firmware zip (e.g. Positivo_Twist_4_S514_210615_10_SPD.zip) and extract on your computer.
- Install SPD/Unisoc USB and device drivers. Download SPD Upgrade Tool.
- Open SPD Upgrade Tool, load the.pac file from the extracted firmware folder.
- Power off your S514, hold Volume Down, and plug into PC (for detection). Click “Start” in tool and wait for process to complete.
- Device should auto-reboot to system; allow first boot to finish. Repeat flash if stuck or error appears.
For a complete, illustrated SPD flash guide plus recovery video, see this guide.
