Hotwav V21 Plus users frequently report problems like non-stop “App Stopped” errors, FRP/Pattern/Pin lock issues, unresponsive touch, camera failures, and complete dead boot (phone won’t turn on). Some devices also suffer from Google Play installation errors and system crashes after software updates. The official SPD firmware files below are verified to unlock phones, repair persistent app bugs, recover stuck phones, and restore factory speed and stability.
Hotwav V21 Plus Firmware Details
| Device Name | Hotwav V21 Plus |
|---|---|
| Model | V21 Plus |
| Chipset | Spreadtrum SC7731GEA |
| CPU | Quad-core, up to 1.3 GHz |
| GPU | ARM Mali-400 MP2 |
| RAM | 1 GB |
| Storage | 8 GB (microSD expandable) |
| Display | 5.0″ IPS LCD (854×480) |
| Main Camera | 8 MP |
| Front Camera | 5 MP |
| Battery | 2100 mAh removable |
| Android Version | 6.0 Marshmallow |
| Firmware Version #1 | SP7731GEA_20170930 |
| Build Date #1 | 2017-09-30 |
| File Size #1 | 708 MB |
| File Type #1 | ZIP (SPD .pac file) |
| Firmware Version #2 | V21_20170627_SPD |
| Build Date #2 | 2017-06-27 |
| File Size #2 | 686 MB |
| File Type #2 | ZIP (SPD .pac file) |
| Flashing Tool | SPD Upgrade Tool |
Warning: SPD flashing is risky! Using the wrong firmware file, interrupting the power, or disconnecting the phone during flashing can permanently damage the V21 Plus or erase important data. Double-check all details and always backup before starting.
Download Official Firmware for Hotwav V21 Plus
Below are two official tested SPD firmware files for the Hotwav V21 Plus. Use the latest version (SP7731GEA) for best results and broader compatibility—recommended for unlocking FRP, solving “App Stopped,” fixing dead boot, and unresponsive screen. Use the earlier version if your device fails to flash or needs the older build.
📄 Filename: Hotwav_V21_Plus_SP7731GEA_20170930_6.0.zip
📦 Size: 708 MB
🗓️ Build Date: 2017-09-30
🔢 Build Version: SP7731GEA_20170930
🤖 Android Version: 6.0 Marshmallow
⬇️ Download Link: Download from MediaFire
📄 Filename: Hotwav_V21_Plus_V21_20170627_SPD.zip
📦 Size: 686 MB
🗓️ Build Date: 2017-06-27
🔢 Build Version: V21_20170627_SPD
🤖 Android Version: 6.0 Marshmallow
⬇️ Download Link: Download from MediaFire
How to Flash the Firmware
- Download and extract your chosen ZIP file to your computer.
- Install the SPD Upgrade Tool and Spreadtrum USB Drivers.
- Open the tool, select the included .pac file, and connect your V21 Plus (powered off) via USB.
- Click “Start” in SPD Upgrade Tool and wait until the process says passed.
- Disconnect, then restart your Hotwav V21 Plus.
Need step-by-step instructions with images and videos? See the full SPD flashing guide here.
Disclaimer: Firmware flashing is risky. This site is not responsible for lost data, bricked phones, or failed updates. If you need assistance, leave your question below.

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