Garmin latest service letter: G3X Touch™ Glass Cockpit Kit and GTR™ 205 COM Transceiver / GNC® 215 Radio Compatibility.

May 12, 2025

Affected Products

 

G3X Touch AML STC SA01899WI installations connected to GTR 205/GNC 215 products are affected.

 

■ GTR 205/GNC 215 products will soon ship from the Garmin factory with software version 2.22;

■ According to STC SA01899WI, GTR 205/GNC 215 software version 2.22 is not compatible with G3X Touch™ software version 9.18.

 

Attention

 

For information on the G3X Touch certified glass cockpit kit that interfaces with the GTR 205 COM transceiver and GNC 215 radio products, refer to Garmin Service Letter 24020.
For instructions on installing GTR 205/GNC 215 software version 2.11, refer to Garmin TSO Service Bulletin 24019.

 

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