I have one key with the "slow indicator light flash" problem. Can't get the wireless door or trunk/frunk locking/unlocking function on it to work, despite already trying:
* reflowing solder on the printed circuit board,
* replacing the miniature switches, and of course
* replacing the battery.
While I can't offer a fix, I'll be monitoring the thread since I have the same problem still in search of a fix.
My other key does work perfectly, although it required all of above repair steps to get it there. Its indicator light has always flashed at a faster/normal rate.
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2001 Boxster
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