spicynujack don't use the Betas, use the official firmware for the V1
Evo II v2.7.25 because it's stable and works with the latest Explorer app versions
This v2.7.25 FW for the V1 is found in .bin form toward the bottom of this page:
EVO II Downloads Help Videos Warranty SDK
EVO II Downloads Help VideosWarranty SDK
EVO II 8K ultra HD 48MP flying camera More Products Product Manuals Product Manual May-20-2020 PDF Quick Start Guide Jan-27-2020 PDF Autel Explorer App Manual May-20-2020 PDF Battery Safety Guidelines(Deutsch)...
auteldrones.com
download it to your computer, drag it to a MicroSD card that's been formatted in the drone, and install it in the drive bay of the Evo, switch the controller and the drone on to let the FW unpack, with no other devices connected. It's a safer plan to remove your props off. Your gimbal guard must be removed. The main process takes ~25-30 minutes, so you'll want a fully charged battery. You'll also need to repeat the process for each battery, but this goes faster (the .bin file gets erased from the card each time so you'll have to drag it onto the card prior to each battery).
You may need to update your Autel Explorer version to work with the firmware, depending on its age. (has to be v1.1.7.93 or newer, if I remember correctly). Most all the bugs have been addressed with the recently updated Android version 1.1.80 and it's a big improvement