keyless entry doesn't work

[jmitro]

my 99 Boxster came with only one key. The remote entry does not unlock the doors or the trunk. I've changed the battery in the remote and still no help.

I searched and found a few threads about how to sync the key to the car (unlock driver side door with key and then press button 1 with key still in the lock) but still the remote does not sync with the car.

anyone have other suggestions?

[Calmg0d]

there's another thread on here with a guy who can fix the key fob for you. Mine only works for the lock/unlock, not the trunk or alarm buttons. The problem is the electronics on the key fobs goes bad and needs either fixing or replacing. he will do some micro-soldering and fix it. do a search for key fob or something. I still need to get with him about fixing mine.
good luck.

[Rickvd]

Same issue one key worked one key the fob buttons didn’t. Took it to the dealer, fixed.