2. Garmin still offers across the board support for the 530 with the lone exception of the WAAS upgrade. They have stopped doing the WAAS upgrade but that is probably their way of pushing us to the GTN 650/750 family.
Sort of - some of the parts used in the 430/530 series are no longer being manufactured. What Garmin has in stock is all that is left. So to insure continued support of their product they've stopped offering the WAAS upgrade. This way they can continue supporting the non-WAAS 430/530s out there.
In order to support future GNS 400W/500W series repairs, Garmin will be ending WAAS upgrades for non-WAAS GNS 400/500 series products on May 29, 2020....
Repairs will be available for the non-WAAS 400/500 series 28v units with 16W COM Transmitter and all 14/28v non-WAAS 400/500-series units.... repairs will continue to be available after this date.
Garmin 430/530 WAAS Upgrades ending [
support.garmin.com]