I've got really weird issue with my DMS that I can't seem to unbrick.
I've tried multiple times using the PHatHack DMS Tools (2.15) to reformat my DMS, but all it succeeds in doing is destroying my MBR, and I can't seem to find a way back to something that's working.
I'm fairly capable with things, and I've rebuilt the MBR several times to point to the right places in the disks for my old partitions. However, when it gets into my car, I get "NO CD," and obviously no media playback.
How can I unbrick?
I've made backups using the PhatHack DMS Tool, although I'm not sure as to how to restore them.
After tinkering around quite a bit, here's what I've done.
Fix the partition table using parted:
sudo parted /dev/sdg
(parted) mklabel msdos
(parted) mkpart primary 8225kB 270MB
(parted) mkfs 1 fat32
(parted) mkpart extended 280MB 80.0GB
(parted) mkpart logical 280MB 80.0GB
(parted) mkfs 5 fat32
Write the signature (but not the MBR) to the drive using DD:
sudo dd if=phatnoise-first-1mb.img of=/dev/sdg bs=512 count=2048 seek=1 skip=1
Then, after booting, here's what I've got in bootload.txt:
BOOT0-0: OK
BOOT0-1: OK
BOOT0-2: Successful
BOOT9-X: Successful
BOOTB-X: Successfu
Notice the missing l? Also, I think it's missing a line here if I remember correctly.
The symptoms from the car perspective are the deadly blinking green light coupled with "NO CD" being displayed by my deck. I've got a VW Golf, FWIW.
Scarier is the logfile, posted on PasteBin (http://pastebin.com/S0D2RkQM) for convenience. Notice at the end, it gets spontaneously clobbered with binary data? Going to wipe this log and take it out to the car for another try.
Actually, those are old logs and they don't seem to be coming from subsequent boots. Looking in my drive's binary data, I'm not seeing the signature in my drive backups :(
As it turns out, based on a hunch gathered from other threads, the PhatBox was attempting to do a firmware upgrade from the DMS. I left my radio on for about 15 minutes, went back out to the car, and heard the wonderful Microsoft Sam "Your dimms is ready for use" repeating into oblivion :)
Sometimes, Microsoft Sam is just so reassuring. Thanks PhatHack!
Yup, common problem when people check the 'Reflash box' option and assume that it takes a short period of time to run!
It can sometimes take about an hour to complete!
Glad you got passed this!