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#1
06-13-2009, 02:11 PM
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MKIV nav blank screen after V32 upgrade - need help
1. Burned a v32 on lowest speed onto CD-R media 2. Installed the software - it went in fine, but I realized that I forgot my custom splash screen 3. Burned a v32 on lowest speed with custom splash 4. Tried to to downgrade the DVD with a v22.1 disk. This installed until near the end when it had an error on the media. 5. Then tried to re-upgrade to v32 with the custom splash. This reloaded things, but instead of rebooting at the end it just went to a blank screen. I waited a few minutes and figured I will need to try again. 6. I shut off the car and restarted. The nav screen was blank (black), but functions such as radio continue to work ok. 7. I tried to see if the OS would reload, but it would not. 8. I burned both a DVD and CD version of v32 to try both. Neither worked. 9. I unplugged the cables from the unit for an hour. I plugged them back in and tried a disk again (it will eject disks if I press on the button a couple of times). 10. I tried unplugging the battery on the car for 20 min. I then tried with the v32 again, but same problem. 11. I hooked up the I-Bus serial and I cannot get the NAV unit to respond on the bus. 12. I swapped a MKIII into the system and the MKIII worked. So now, the unit has the red power light flash and I can hear the disk spin, but it does not seem to get anywhere. I would hope there is a way to reset the unit so that it is ready to reload the software. Any help would be appreciated- I hope I did not brick the MKIV. 
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#3
06-13-2009, 03:40 PM
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Welcome to the forum,
Sounds like you have corrupted to the boot image for the nav computer, download and burn v29.1 or the one provided by angel http://gren.exe.su/flash/BMW_V29.rar and insert into the drive and wit for it to load up, then put the v32 (with your splash) and try that. If this does not work, try and use a mode2/form1 image that may work.
__________________
Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.
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#4
06-13-2009, 09:55 PM
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So I took the v24 and burned it with MagicIso as a mode 2/XA and it did not read. I will probably stop by a dealer and try picking up a real disk rather than a burned one.
Right now the drive flashes its power light long once followed by seven pulses of light followed by a pause and then the cycle repeats. My previous burn discs were made with ImgBurn, but I can't figure out how to make it do a Mode2 disc. MagicIso burns at 10x, so I think I want to try again.
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#5
06-14-2009, 04:27 AM
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Quote:
But try with a new OS disc, good luck...
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#7
06-14-2009, 05:08 AM
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I'll make you up a mode2/form1 image tomorrow and post up the link, you can try that then, if you post your splash (or pm me) I''l include that in the update image.
__________________
Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.
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#9
06-14-2009, 11:24 PM
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Update - tried the v24 from Angelych and still a no-go. Does anyone have a way to diagnose the issue in more detail. I would be open to replacing the drive mechanism, or doing any type of physical reset. I will see if original media may help and if not I am resigned to replacing it.
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#10
06-15-2009, 05:15 AM
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__________________
Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.
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