firmware.repairtofix.com is only site which provides flash file or firmware files and tools of any mobile free of cost. At this site you need not to login or any entry fee is not needed. You can download any files form this site absolutly free.
Code Flow is an official YouTube channel of firmware.repairtofix.com which provide visual solution to the problem posted by firmware.repairtofix.com. You can visit its official channel page at Code Flow
Yes, the flash files which are officially release and are tested on the same device are only posted for download.
No you don't need to register to the website to download the file or to access the contain of the website
You can directly email us at nmg.gta@gmail.com or visit our contact us page