Likes: 
That's not a US/EU firmware device of course. I suspect it's a localized model, such as China, Taiwan ..... maybe? I'm not able to locate any firmware for that HWID unfortunately. You may need to contact the local Garmin branch or BMW dealer to ask for a copy of the firmware. If you can find the correct firmware (any version, even a UAT [beta] version will do) for HWID 4044 we can likely fix this device easily.
Did you take that photo of the screen before the attempt to dump NV region with the wrong ldr.bin?
My understanding and assumptions: You've used the wrong boot.bin as ldr.bin according to your Post #322. Likely you used the one from US/EU fw so tell us if you changed the HWID in RGN_Tool to 4044 or left it as (e.g.) 2584? If you didn't change it to 4044 and flashed it with wrong ldr.bin, then the device likely now has HWID (?)2584 in it's regions 5 & 43. However the main fw region 14 is still reporting HWID 4044. The incorrect ramloader (boot.bin/ldr.bin) previously flashed to rgn12 may have written the incorrect bootloader into rgn5. That is being initiated by rgn14 however it's unable to subsequently boot the device hence the screen message "System Software Missing". So although the correct fw_all.bin data (the main 'system software') is in rgn14, it cannot start the device.
Please confirm or correct all the above information if you are able to locate appropriate firmware.
The reason your PC detects the device in Windows Device Manager is because it's defaulted to preboot mode due to being unable to execute the system software (firmware) in rgn14. Because it's in preboot we can probably successfully re-flash it using Updater.exe if you can find the firmware. Good luck.
Welcome guest, is this your first visit? Click the "Create Account" button now to join.
Results 1 to 10 of 16
Hybrid View
-
22nd November 2022, 07:17 AM #1Important User
- Join Date
- Jul 2017
- Location
- CA
- Posts
- 1,466
- Rep Power
- 1059
-
22nd November 2022, 08:39 AM #2Member
- Join Date
- Nov 2019
- Location
- TAIWAN
- Posts
- 8
- Rep Power
- 0
I bought it on eBye in the UK, because it is not sold in Taiwan. The original version only has a European map and a multi-language interface, and the Chinese display can be switched.
So it should not be the localization model of TAIWAN.
The attached photo was taken when I first started using it.
I forgot to change the HWID from 2842 to 4044 in RGN_Tool the first time I tried to backup the NV, when I found out it failed I changed the HWID to 4044, but it also failed.
The HWID 2842 is firmware version 2.6, I thought it was just booting from the SD card and running the Update.txt, now I know it will first write the data to some NV...
Contents of Update.txt:
rrgn,5,2:/2842-5.bin
rrgn,154,2:/2842-154.bin
reboot
HWID 2842 is my friend’s BMW Navigator VI. I learned the method in[Only registered and activated users can see links. ]to get the GCD file of 2842 from GARMIN, but I can’t get any GCD file in this way, so I want to try to convert the 2842’s (boot. bin/ldr.bin) into HWID 2842
Now I am also trying to contact the local GARMIN to see if they can help fix my 4044 ....
PAY ATTENTION TO THE WARNINGS THAT YOU GET FROM THE FORUM.
DON'T JUST POST NEW POSTS ONE AFTER ANOTHERLast edited by Boki; 22nd November 2022 at 11:12 AM. Reason: approved, note
Reply With Quote
Bookmarks