The Hotwav Cosmos V4 is a budget Android smartphone from 2016. Given its age and older software, it is extremely common for users to face significant performance issues. Based on our research, the most frequent complaints include the phone being stuck on the Hotwav loading logo (bootloop), unbearable slowness and lag that makes even basic tasks difficult, and apps that constantly crash or show “Unfortunately, the app has stopped” errors. The old Android 5.1 software is also very vulnerable to malware.
Re-flashing the official stock firmware is the most reliable way to fix all these problems. This process will completely wipe the device, install a fresh copy of the Android 5.1 operating system, and restore your Hotwav Cosmos V4 to its original, stable factory condition. This will fix bootloops, remove lag, and get your phone working again.
Hotwav Cosmos V4 Firmware Details
| Device Name | Hotwav Cosmos V4 |
| Model | Cosmos V4 |
| Chipset | MediaTek MT6580 |
| Android Version | 5.1 (Lollipop) |
| Firmware Version | 20160405 |
| Build Date | 04-05-2016 |
| File Size | 720MB |
| File Type | ZIP (Scatter) |
| Flashing Tool | SP Flash Tool |
Warning: This firmware is specifically for the Hotwav Cosmos V4 (MT6580). Do not attempt to flash this file on any other model, even if the name is similar, as it will result in a hard brick. This process will erase all your personal data, including photos, contacts, and apps. Ensure your phone is charged to at least 50% before starting.
Download Official Firmware for Hotwav Cosmos V4
This is the official stock ROM package for the Hotwav Cosmos V4. No official changelog is available for this build.
- 📄 Filename: Hotwav_Cosmos_V4_2SIM_64_8_1_5_A5_QHD_20160405.zip
- 📦 Size: 720MB
- 🗓️ Build Date: 04-05-2016
- 🔢 Build Version: 20160405
- 🤖 Android Version: 5.1
- ⬇️ Download Link: MediaFire
How to Flash the Firmware
To install this firmware on your Hotwav Cosmos V4, you will need a Windows computer, the SP Flash Tool, and the correct MediaTek VCOM drivers. This firmware is a scatter file and must be flashed using the tool.
- Download and extract the firmware zip file and the SP Flash Tool to your computer.
- Install the MediaTek VCOM USB drivers on your PC. You may need to restart your computer to finalize the installation.
- Launch
flash_tool.exefrom the SP Flash Tool folder. - Click on the “Scatter-loading” button and navigate to the extracted firmware folder to select the
MT6580_Android_scatter.txtfile. - Power off your Hotwav Cosmos V4 completely. Click the “Download” button (with the green arrow) in SP Flash Tool, then immediately connect your phone to the PC with a USB cable.
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 are unsure about any step, please ask for help in the comments section below.
