TheBoy
Unfortunately, everything I have seen involves repeating the Reset procedure. (multiple times).
I do know replacing the Board was mentioned by some to fix the issue, but that will only likely help if due to a hardware error. Since other users have experienced the Recovery Mode loop and the Reset usually resolves issue, it may just be a software or firmware issue.
Not really many components to these TVs, so the Board is simply replaced as a catch-all. If still trying to fix this TV, would probably just swap out the I/O and power boards as well to eliminate those as contributing culprits. (Normally, can get the Main, I/O, and power boards as a set, so not sure how much $ you are out currently for your Main Board and whether you consider it worth fixing).
Sometimes not worth the hassle for some, and if past any warranty period, purchasing a new TV may be better option. Personally, I own only one RokuTV (Insignia), and would not purchase another integrated RokuTV. I much prefer the simplicity and flexibility of using a seperate Roku streaming device connected to a standard TV. (or even a smart TV with a different OS). That way, the streaming device can be upgraded and the whole TV system isn't down when an issue arises.