The Karbonn Quattro L50 HD stock ROM is no longer hosted on our server because we had to reduce expenses this year to survive this recession.

There are a few ways you can go about getting it still though. First, you can try one of our competitors who often host similar files on their own servers. Second, you may be able to find a free firmware update tool made for Karbonn-branded smartphones that can download the firmware directly from Karbonn’s servers. Lastly, you could get in contact with Karbonn and ask them if they would be willing to share the firmware file, though smartphone manufacturer’s typically preferred you send the device to them for them to install the firmware.