Hey everyone!
My trusty S22 Ultra decided to begin lagging hard the day I literally paid it off! I could use the phone but everything was incredibly slow. I backup to the cloud and had 30+ gig of available space, rebooted and cleared the cache and I'm 100% sure there's no virus on the phone. After looking online I decided to get a replacement screen. Once installed properly and rebooted, the phone turned on but the display was black. The phone would vibrate when turned on, charging cord plugged in or if the S-pen was removed - as usual; just no signal on the display. Removed new screen and installed the old screen that did work but lagged. Same thing. I ordered a new LCD flex cable and installed it without incident. No change. Took it to a repair shop and they did exactly what I did - and yep...same result. He told me that everything works, but he'd have to do a diagnostic on the display chips on the motherboard to determine what's bad and order those parts.
Here's my question...what could possibly be wrong with this?
I have a decent amount of experience fixing a variety of electronics and based on my current knowledge of this phone's screen technology, there isn't a replaceable chip that could be changed that would resolve this issue. Right?
I called the technician this afternoon and he said he ordered two chips. I didn't hear him well because of his thick accent, but he did mention one chip was an "IC chip." Not sure which one. The other chip he ordered had two sides to it and he said the one on the top was bad. I don't know which chip he referred to there, either.
I'm at a loss here because I have a feeling I'm being dragged along with repair ideas in an effort to charge me more money and will end up without a working phone. The current estimate is between $100 & $150.
Anyone have some helpful info? 
