All partitions from a Samsung EVO 850 Pro were backed up to a single file by IFL 2.99-00. The system is UEFI with GPT. No partitions were encrypted.
I booted from a USB installation of IFL 2.99-00, which is the same USB used to make the original backup.
I used BIBM to delete all existing partitions, leaving a blank slate.
The backup is stored on a network share, so I used the built-in utilities on the USB to mount the share as net1.
I attempted an automatic restore of all partitions. File access method for the source is File (OS) from the net1 mounted share. I selected all partitions to restore the entire drive to a former state. I selected the restore option "Assume Original HD."
The Recovery partition (NTFS), EFI system partition (FAT-32), and Microsoft reserved partition (GPT Entry) restore fine. The data partition does not. The restore processes a small amount of data (varies, but always less than 1GB), and appears to hang. The time remaining counter ticks up and up and up. The data restored creeps up in 8MB increments. Something is very, very wrong.
If I click Exit, IFL asks if I want to cancel. If I click Yes, nothing happens. The only way out is to hold down the power button.
I am at my wits end. I don't have another system in which I could install the SSD. I have tried older images of the same drive made in the same way, and they fail, too.