Download the Hotwav Cosmos V2 official firmware from the link here and follow the provided flashing instructions to learn how to flash the stock rom.
If you notice that any of the links provided below are broken or don’t work, please post it in the comments section so we can fix and update it ASAP.
Download Options
File Name: Hotwav_Cosmos_V2_D8050_MT6580_5.1_P12.zip
Size: 779 MB
Firmware – Download
How to flash
Click here to view complete flashing instructions for any of the firmware packages downloaded below. If you have any issues with flashing, post in the comments section below for assistance.