This is still one of my favorite quads so I decided to upgrade it a bit with some new electronics. I installed the Bardwell F4 flight controller, Rush Tank VTx, XM+ Rx (recently switched to Taranis) and a micro Axii VTx antenna. The Rotor Geeks 1407-4000kv motors, Foxeer cam and Armattan 20a ESCs did not get replaced. I drew up and printed the Rx and VTx antenna holders.