Hi,

I just updated my J-Flash version from v512j to v612a (indeed we are not using it a lot but every now and then) the problem is when I open the same project in v612a and try to flash (auto program) my device I get the following error message:

- Connecting via USB to J-Link device 0
- Chip unsecured successfully - Completed after 0.157 sec
Checking if selected data fits into selected flash sectors.
Auto programming target (61621 bytes, 1 range) ...
- Connecting ...
- Connected successfully
- Start of preparing flash programming
- End of preparing flash programming
- Start of determining dirty areas in flash cache
- End of determining dirty areas
- CPU speed could not be measured.
- Start of erasing sectors
- Erasing range 0x00000000 - 0x00003FFF (008 Sectors, 16 KB)
- Erasing range 0x00004000 - 0x00007FFF (008 Sectors, 16 KB)
- Erasing range 0x00008000 - 0x0000BFFF (008 Sectors, 16 KB)
- End of erasing sectors
- ERROR: Erase failed
- ERROR: Failed to auto program target
Disconnecting ...
- Disconnected

When I do the auto programming with v512j it works correctly and my target is programmed without any problems. See attachment for the project I use.

Any clue?

Thanks, solved!!