Have you been completely locked out of your Hotwav Cosmos V15? Whether it’s a forgotten pattern, PIN, or the dreaded Google Factory Reset Protection (FRP) lock that appears after a reset, this device is notoriously difficult to recover. User reports consistently highlight the SP7731 chipset’s strict security as the culprit, which prevents unauthorized access after a wipe. The official Hotwav_Cosmos_V15_SP7731 firmware provided here is the definitive bypass solution. Flashing this stock ROM will completely overwrite the system partition that stores the lock credentials, allowing you to set up your device from scratch and regain full access without the FRP barrier.
Hotwav Cosmos V15 Firmware Details
| Detail | Information |
|---|---|
| Device Name | Hotwav Cosmos V15 |
| Model | Cosmos V15 |
| Chipset | Spreadtrum SP7731 |
| Android Version | Android 5.1 Lollipop |
| Firmware Version | Stock Version (from filename) |
| Build Date | To be confirmed from file properties |
| File Size | 680 MB |
| File Type | PAC or CPB Firmware |
| Flashing Tool | SPD Upgrade Tool or YGDP Tool |
Warning: The primary purpose of this firmware is to remove FRP and user locks. The flashing process for Spreadtrum (SPD) devices like the Cosmos V15 is very specific. Using the wrong tool version (e.g., trying to flash a .PAC file in a tool that expects .CPB) will result in an immediate failure and could potentially corrupt the bootloader. Always ensure the tool matches the firmware file type to avoid a permanent brick.
Download Official Firmware for Hotwav Cosmos V15
This is the official stock firmware for the Hotwav Cosmos V15 with a Spreadtrum SP7731 chipset, specifically effective for removing FRP and user locks.
- 📄 Filename: Hotwav_Cosmos_V15_SP7731_5.1_SPD.zip
- 📦 Size: 680 MB
- 🗓️ Build Date: To be confirmed from file properties
- 🔢 Build Version: Stock Build
- 🤖 Android Version: Android 5.1 Lollipop
- ⬇️ Download Link: MediaFire
How to Flash the Firmware
To install this firmware on your Hotwav Cosmos V15, you must use a Spreadtrum (SPD) flashing tool. The file type will determine the best tool to use.
- Download the firmware file and a Spreadtrum flashing tool (SPD Upgrade Tool for .PAC files or YGDP Tool for .CPB files) on your computer. Install the correct USB drivers.
- Extract the downloaded ZIP file. Identify the main firmware file inside—it will likely be a .PAC or .CPB file.
- Open the corresponding flashing tool, load the firmware file (.PAC or .CPB), and ensure the settings are correct for a full flash.
- Power off your Hotwav Cosmos V15. If it’s locked, you can usually force a shutdown by holding the power button for 10+ seconds.
- Click “Start” or “Download” in the tool, then connect your locked, powered-off phone to the PC via USB. The tool should detect it and begin the unlocking process.
For a complete, step-by-step guide with pictures and videos on how to flash the firmware, choose the correct guide based on your file type:
Go here for the SPD Upgrade Tool (.PAC files)
Go here for the YGDP Tool (.CPB files)
Disclaimer: The firmware files and flashing instructions provided on this website are for legitimate lock removal and device recovery purposes only. We are not responsible for any damage that occurs to your Hotwav Cosmos V15, including a complete device brick, permanent hardware failure, or any other issues arising from the flashing process. You are solely responsible for ensuring that you have the legal right to unlock this device. If you encounter any problems, you can describe the issue in a comment below for community assistance.
