You could try that yeah, start at the AC input and work your wayt to the DC output to and find out where the circuit fails. If you want to do that though I’d recommend that you take 2 good pictures of the front and the back, put them side to side and sketch out the circuit diagram. It’s no use trying to measure voltage nodes if you don’t know what they are supposed to be. Question is if that is worth your time, there is certainly some educational value but there is always a chance that you just won’t find the fault.

If you do make a schematic then react to my post. I’ll try to help you with reading the circuit if you want.

This worked for me.

I don't mind paying either, but I think that premium is just a bad deal.

You could go with an DS1339 which is an RTC with two programmable time of day alarms. If you only need timing you might as well do that. But if electronics isn’t really your thing then just add a bigger battery for the attiny85, make sure to run it at it’s lowest clock speed.

Can’t wait to sell my excess brain power to crypto miners

I’ve been looking into custom roms but for a bit but it will take a while before I feel confident enough to try it. I want to try it but I’m afraid that I will get locked out certain services like banks or ms365 for work. I’ll look into this Magishide tool.

Do banking apps work?