Hello Catymag,
I tried webupdate to update after removing all the files except GarminDevices.xml, gmapbmap.img anf gmapbmap.sum. Webupdate was successful in copying GUPDATE.GCD and updating some other local files and voices etc. After updating, when I restart the device, it is stuck again on the boot logo and refuses to boot. I tried the same thing with Garmin Express and same thing happened after a successful update.
I cannot boot the device but I can still get into mass storage if I let the battery drain completely.
Next thing that I tried was getting GarminCure3 and making an original/cure firmware based on the GUPDATE.GCD and I get the RGN file which I try using with Updater.exe. I have all the drivers installed and used Updater before to do a region change. I did enter preboot by holding the battery icon and then plugging it into the computer. The thing is that I cannot enter pre-boot or else all my problems will be solved.
Thanks for all the help. I really appreciate it.