Solved. Changed to telem2 without issue
Hi everyone. As the title suggests I am having boot loader issues when a Happy Model ES900 is connected to the fc via telem 1. No issues when ES900 is not connected.
All ELRS components are running 3.3.0 and are bound as per the ELRS Airport wiki.
RM Boxer 2.4
RM ER6 receiver
BetaFPV Micro Tx backpack 868
HM ES900 868
Any help on this issue would be greatly appreciated.