The Hotwav Cosmos V8-1 is a budget smartphone that, like many devices in its category, is prone to software issues over time. A common problem users face is the device getting stuck on the Hotwav logo during boot-up, rendering it unusable. Other frequent complaints include the phone becoming incredibly slow, applications crashing, and in some cases, stubborn malware or viruses that cannot be removed with a simple factory reset. The most effective solution to fix these critical software errors is to flash the original stock firmware. This process will completely reinstall the phone’s operating system, resolving boot loops, performance lag, and virus infections.
Hotwav Cosmos V8-1 Firmware Details
| Device | Hotwav Cosmos V8-1 |
| Model | Cosmos V8-1 |
| Chipset | Spreadtrum SC7731 |
| Android Version | 6.0 (Marshmallow) |
| Firmware Version | V1.0_141016 |
| Build Date | 2016-10-14 |
| File Size | 947MB |
| File Type | .zip (Contains .pac file) |
| Flashing Tool | SPD Upgrade Tool |
Warning: Flashing firmware will permanently delete all the data on your Hotwav Cosmos V8-1, including your contacts, photos, and apps. It is crucial to back up your data if possible before you start. An error during the flashing process, such as using the wrong file or an interruption, can brick your phone. Please ensure this is the correct model and proceed with caution.
Download Official Firmware for Hotwav Cosmos V8-1
Here is the official stock ROM for the Hotwav Cosmos V8-1. This package contains the .pac firmware file needed to restore your device.
📄 Filename: Hotwav_Cosmos_V8-1_SC7731_V1.0_141016_MIRA.zip
📦 Size: 947MB
🗓️ Build Date: 2016-10-14
🔢 Build Version: V1.0_141016_MIRA
🤖 Android Version: 6.0 Marshmallow
⬇️ Download Link: Download from Google Drive
How to Flash the Firmware
Since the Hotwav Cosmos V8-1 runs on a Spreadtrum (UNISOC) chipset, you will need to use the SPD Upgrade Tool on a Windows computer. Here are the 5 basic steps:
- Download and install the correct Spreadtrum USB drivers on your computer.
- Download the firmware file from the link above and extract the .pac file from the zip archive.
- Download and launch the SPD Upgrade Tool application.
- Click the “Load Packet” button (the single gear icon) and select the .pac firmware file you extracted.
- Turn off your phone, click the “Start Downloading” button (the play icon) in the tool, and then connect your phone to the computer while holding the Volume Down button. The process will begin.
If you want to see all the steps with pictures and videos on how to flash the firmware, you should go here to see that: How to Use the SPD Upgrade Tool to Flash Your Smartphone.
Disclaimer: We won’t be responsible if anything happens to your phone in the process of flashing it using the firmware files we provided above. That they can drop a comment on the thread if they experience any problems.

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