I’m engaged on an A2179 2020 MBA. My previous good friend spilled one thing within the topcase and right-side keys weren’t working. Every part else was working wonderful after I took possession.
I did the restore as soon as with a case/battery mixture unit. Once I powered on, the fan went full pace and the CPU was throttled to a close to halt. It booted and labored, however barely. Additionally, the battery wouldn’t obtain cost.
I learn elsewhere that habits may end up if there’s a thermal sensor someplace not correctly sending data, or if the battery is totally lifeless. I reseated all the cables to no avail, so I returned the part figuring there was an error with the battery or its daughterboard.
I ordered a greater grade battery (from right here!) and case. I repeated the restore and I’m getting the identical consequence. I’ve gone by way of and reseated the cables. Similar factor.
So I’m stumped. Listed here are the fundamental situations:
- Earlier to disassembly, the CPU labored wonderful. The one challenge was problematic keying. Work arounds included exterior keyboard.
- Two repairs with totally different parts have each resulted within the laptop defending itself.
- I’m moderately sure the second battery and its controller are good high quality.
- I’ve come to study it is a not unusual challenge with MBA topcase and display screen repairs, and I even learn a dialog about it with an iMac.
Reseating cables hasn’t fastened it. Having stated that, I’m questioning about among the cabling across the trackpad. I’m additionally questioning in regards to the tiny daughterboard simply north of the trackpad on the A2179. I do surprise if one thing is goofy with the facility/fingerprint button. I’ll order a brand new a kind of, however that shouldn’t be ample for the unit to enter temperature safety.
Any ideas or recommendation is tremendous appreciated. Cheers!