Hi guys.

I have a Garmin Nuvi 1200 that gets stuck on Garmin

HWID: 1106
Firmware: nuvi12xx_GCDFile-MTK__630.gcd
Latest drivers
Operating System: Windows 11 and Windows 7

Tools used

Updater
RGN Tool
GarminCure by Kunix
G7towin
RMPrepUSB

Tests I did.

1- I converted GCD to RGN with RGN Tool with the name 110601000630.rgn and uploaded it to Updater. I did the preboot and when I wanted to load the firmware, after a while it gave the error "IOU_UTILITIES.CPP-203-2.8. Same error with Cure

2- I converted GCD to RGN with RGN Tool, just boot.bin, with the name 110601000630.rgn and uploaded it to Updater. I did the preboot and it ends successfully. Windows recognizes it but does not assign a letter to the drive. It is detected by Updater, but not RMPrepUSB. With Cure (only boot.bin) it gives the same error as in 1.
Once annealed and trying to update the complete firmware with Updater it gives the same error as in 1

3- I wanted to convert GCD to RGN with RGN Tool, only fw_all.bin and I get the error "Section 1 must be enabled. Normally it should contain section 0800 boot.bin" and it does not allow the RGN to be created

4- I tried with a microsd with a Garmin and Gupdate folder inside and it does nothing.

Any suggestions?