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Feel free to call. It's been several years and that was the only VW cluster I've ever dealt with but I can try working through the cob webs in my brain. I'd say first compare my cluster pics to yours. They may be the same or completely different. Happy to help however I can.
Years ago, I had one on a 2000 VW Jetta I worked on. Blown capacitor and burned up trace. I used eeprom equipment to pull a .bin dump from the bad cluster and saved it to the eeprom on a donor cluster off ebay. I'd imagine the process could be the same if you wanted to give it a go. Otherwise, follow James' advice. Touch up the solder joints and see if anything looks bad / wrong.
On mine, I shipped it to some place in Massachusetts but they declined and sent it back. Full write up here if it helps any:
If the entire cluster is dead, and you're not afraid of splitting the case
Check for visibly blown capacitors and touch up the solder joints on all of the main plug connections. That has been the issue on 90% of the clusters I've repaired other than step motors.