Thread: GarminCure3 tool - the new way to create cure firmwares for Garmin devices

Correction: I believe that the SDCard Method using update.txt and LDR.bin will not work when GarminCure3 is loaded in Cure Mode.
Cure Firmware traps early to Mass Storage mode.
Maybe Kunix can confirm this ?

Originally Posted by dasilvarsa

I believe that when Kunix GarminCure3 Firmware is loaded on the Device, Updater.exe will not execute.
Cure Firmware traps early to Mass Storage mode.
Maybe Kunix can confirm this ?

If that were true, GarminCure3 would literally kill devices with 100% reliability, as there would be no other ways to update the firmware.
But no, pre-boot mode has to work, because bootloader inside boot.bin is not patched.
You can flash some garbage instead of fw_all.bin and pre-boot mode would still work on 99% of Garmin devices (on GVN53 it won't, sadly). This proves that pre-boot is not implemented in fw_all.bin. And GarminCure3 patches only fw_al.bin.
The answer seems to be too obvious... Maybe I didn't understand you.

Originally Posted by kunix

If that were true, GarminCure3 would literally kill devices with 100% reliability, as there would be no other ways to update the firmware.
But no, pre-boot mode has to work, because bootloader inside boot.bin is not patched.
You can flash some garbage instead of fw_all.bin and pre-boot mode would still work on 99% of Garmin devices (on GVN53 it won't, sadly). This proves that pre-boot is not implemented in fw_all.bin. And GarminCure3 patches only fw_al.bin.
The answer seems to be too obvious... Maybe I didn't understand you.

What I meant is that the SD card method using update.txt and LDR.Bin won't work when GarminCure3 is loaded in cure mode.
I wrote updater.exe instead of update.txt (blonde moment).