The NV region size should not be be 0 bytes. It should be at least 4MiB.

In most later devices like Drive series the NV is in region 154 rather than 41 and the path to card is "2" not "1".

Please post the contents of "update.log", but first remove or disguise the UID & HWID 10 digit numerals.

Just saw your edit as i was posting. Should be all good now to use it normally. Keep 154.bin for the life of your device, it might save it in the future.