This is some info on the vivid 4 wall panels.
Panel files
Right from Chauvet site
Or local files
Upgrading "rcfgx" Configuration files using Novastar app
Launch it
User -. Advanced Synchronous system user login
password "ADMIN"
Goto "screen configuration"
Select "NEXT" (assuming you have a com port selected for your wall)
Select receiver, then select your file and update. Dont forget to click save at the bottom when the process is done.
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Had another situation where one of my screens went into factory reset. The light on the back of the panel was solid yellow, vs a red/greed blink that it normally does
Went into NovaCTL, logged in as admin under the "USER" menu, then you type ADMIN again and a hidden menu shows up.
For ME, I had to upload the following file: Once i uploaded it, screen was working.
17\A5s_MCU_Data_V1.0.3.4 OnboardFlash speed 1.5M