Match the exact model, region, and branch name. Similar model numbers are not the same device.
Firmware files are here on Inar Guide. Tutorials, flash tools and USB drivers are on FlashGuideHub.
The Hotwav Cosmos V8 Lite is a budget-friendly device that, after extended use, can start to show signs of software-related problems. Based on our research for devices in this category, it’s common for users to eventually face issues like the phone being stuck on the Hotwav loading logo (bootloop), or experiencing significant slowness and lag that makes the phone frustrating to use. You might also encounter apps that crash randomly or a “Unfortunately, the app has stopped” error.
The most reliable solution for all these software issues is to flash the stock firmware. This file is the official Android 6.0 (Marshmallow) build for the Hotwav Cosmos V8 Lite. Re-installing the firmware will completely restore your device, remove any corrupted files or malware, and fix the bootloop and lag problems, returning your phone to its original factory condition.
Hotwav Cosmos V8 Lite Firmware Details
| Device Name | Hotwav Cosmos V8 Lite |
| Model | Cosmos V8 Lite |
| Chipset | Spreadtrum SP7731CEB |
| Android Version | 6.0 (Marshmallow) |
| Build Version | 09082017 |
| Build Date | 09-08-2017 |
| File Size | 600MB |
| File Type | .PAC (SPD Firmware) |
| Flashing Tool | SPD Upgrade Tool |
Warning: This firmware is specifically for the Hotwav Cosmos V8 Lite (SP7731CEB). Do NOT attempt to flash this on any other model, as you will permanently brick the device. Flashing this firmware will erase all your personal data, including photos, contacts, and apps. Please back up your important files if your phone is still accessible.
Download Official Firmware for Hotwav Cosmos V8 Lite
This is the official stock ROM for the Hotwav Cosmos V8 Lite. No official changelog is available for this build version.
- 📄 Filename: Hotwav_Cosmos_V8_Lite_SP7731CEB_09082017_6.0_SPD.zip
- 📦 Size: 600MB
- 🗓️ Build Date: 09-08-2017
- 🔢 Build Version: 09082017
- 🤖 Android Version: 6.0
- ⬇️ Download Link: MediaFire
How to Flash the Firmware
To install this firmware on your Hotwav Cosmos V8 Lite, you will need a Windows computer, the SPD (Spreadtrum) Upgrade Tool, and the Spreadtrum USB drivers. This firmware comes as a .PAC file.
- Download and install the Spreadtrum (UNISOC) USB drivers on your PC. Restart your computer after installation.
- Download and extract the firmware zip file to a new folder on your computer.
- Download and launch the SPD Upgrade Tool.
- Click the “Load Packet” button (the single gear icon) and select the
.PACfile from the firmware folder you extracted. - Turn off your Hotwav Cosmos V8 Lite completely. Click the “Start Downloading” button (the play icon) in the tool, then connect your phone to the PC while pressing and holding the Volume Down key.
For a complete, in-depth guide that includes all necessary downloads, pictures, and troubleshooting steps, please see our full tutorial here.
Disclaimer: This procedure is performed entirely at your own risk. We are not responsible for any data loss, bricked devices, or other issues that may arise from flashing this firmware. By proceeding, you acknowledge that you are solely responsible for any consequences. If you encounter any problems, feel free to ask for help in the comments section below.