Before attempting any recovery methods, check if you have a recent backup of your data. If you do, you can restore your files easily.
Official support for these files via Microsoft servers has largely been discontinued, but the community maintains several reliable repositories: lumia 650 emergency files high quality
For the Lumia 650 (RM-1150, RM-1152, RM-1154), you typically require a set of "emergency" or "hex" files to reinitialize the bootloader before a full firmware (FFU) can be flashed. postmarketOS Wiki HEX/EDE File : Often named with a prefix for the Snapdragon 212 chipset used in the 650. : The emergency payload file specific to your RM model. Before attempting any recovery methods, check if you