Not exactly "Safe mode" more of a crashed Nav mode.

Sounds like a corrupted OS to me, not enough to lock the Nav but enough to crash intermittently.

It could be a crap map disc, some drives are very sensitive to map disc errors, I had one a while back kept rebooting the nav when selecting the PIO menu, so I binned the disc and burned another disc (at a slower speed) and no more crashes.

I've been running V29.1 for a while now and no problems, I always use a brand new quality disc and write at x1 speed, it takes longer but it works.

Down grade to v28 and then re-upgrade again.

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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.