Hi everyone, hope you can help me on this one..

I've been looking through all the past posts and can't find anyone with exactly the same issue as me, although many are similar.

I have a mk4 sat-nav unit, with the 16*9 screen (CD player version). Pictures attached.



I tried updating my sat-nav unit 6 months ago to firmware v31, with success and managed to get the aspect view. However, my brother gave me a new disc, which had v32 firmware, which he had successfully installed on his e46 M3 convertible (same mk4 sat-nav unit and head unit)

While updating my sat-nav unit the ignition was switched before it had completed, and this is where my nightmare began. I now have a blue screen with all the options other than the sat-nav option. From what I have read this is the head unit taking over as a problem has been detected on the sat-nav unit in the boot/trunk.

I have tried disconnecting the battery, waiting for ten minutes and reconnecting and tried re-installing the v32 firmware, with no luck, still the same blue screen.

I have tried loading firmware versions, v27, v29 and the dreaded v32! grr.. Still no luck.

On the sat-nav unit I no longer have a power light, however I can see a light in the drive, and hear the disc spinning. I can also still eject the disc by pressing the eject button a number of times..

I took the car for a service at the BMW garage, where they told me that I needed to buy a new drive at a cost of £2000!... ouch…

Any assistance really would be appreciated as I need to sell the car due to a new family member, and babies in M3s just don’t make any sense… Getting an x5 (if I can resolve this issue)…

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