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Discussion Starter · #1 ·
this all started after i upgraded my instrument cluster (b5 200 s4) with the newer software coding so that i would no longer get the flickering/resetting screen while driving.

Since then and only upon turning on the rns unit every now and then i have to re-enter the code (i have tried reseting it with radio and setup pressed together - no luck). The pin requirement usually occurs randomly. turn off the car, turn it back on and rns is ok, come back after a week and rns is ok, sometimes i turn off the car, then come back a few seconds later to turn it back on and the rns unit wants me to reenter the code again.

Of note i have never ever had the unit reset itself/turn off while driving/car being on.


any help would be MUCH appreciated
 
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