How do I make another .rgn file? Same process as you've mentioned before?

4). Use RGN_Tool :: Load US boot.bin from1). , fw1_resources.bin from3). , fw_all.bin from2)

Tried doing this and saved it as GCUPDATE.gcd, loaded it into Garmin's .System, the unit almost bricked (I think)

It didn't boot up, stuck in loading software then reboots again and again. Flashed it with the cure FW then ran the recently made RGN file again.

Did I do it wrong?