MossFromIt
Member
You can use it with all the benefits of firmware 400 + 500.
Firmware 400 allows to program batt type to 0,2 or 3 (no RTH on low batt).
On top of it you can install the camera module of firmware 500. (This is 'module mixing' method).
But you cannot use B0B, directly with firmware 500...
Do you know what is the tricky part that prevents DIY battery?
If we can intercept the firmware during battery firmware update then put it on a copied board. Is it doable?