If you accidentally deleted files, you can try free PC software like Recuva or TestDisk, though success is limited on Windows Phone devices due to MTP (Media Transfer Protocol) restrictions.
If you cannot find a valid free file set for your specific Country Variant (e.g., Vodafone branded Lumia 650), there is a last-ditch free method: lumia 650 emergency files free
The Thor2 Rescue Method (Command Line) Microsoft’s internal tool (Thor2) can sometimes rebuild the bootloader without a Hex file if the phone is in "Flash mode" (red screen). If you accidentally deleted files, you can try
Note: The RND mode rarely works on the Lumia 650; the Hex is almost mandatory. If you cannot find a valid free file
This community-run archive mirrors Microsoft’s old servers.