Basically you go through some test points and figured out the mcu failed but didn't do anything and at the output went into some kind of protection. I really don't think it is because of low battery rather,its the auto shut of boost ic due to short circuit in MCU.
How this video can "actually" help??? put some explanation on the vid on what exactly you did to repair the thing.some of us are not electronics technician. We just wanted to follow what you do, so you need to explain it.
