I’m engaged on an A2179 2020 MBA. My previous pal spilled one thing within the topcase and right-side keys weren’t working. Every thing else was working advantageous 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 conduct may result 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 and reseated the cables. Similar factor.
So I’m stumped. Listed below are the essential situations:
- Earlier to disassembly, the CPU labored advantageous. The one difficulty was problematic keying. Work arounds included exterior keyboard.
- Two repairs with completely 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 difficulty with MBA topcase and display repairs, and I even learn a dialog about it with an iMac.
Reseating cables hasn’t mounted it. Having mentioned that, I’m questioning about a few of the cabling across the trackpad. I’m additionally questioning concerning the tiny daughterboard simply north of the trackpad on the A2179. I do marvel if one thing is goofy with the facility/fingerprint button. I could order a brand new a type of, however that shouldn’t be ample for the unit to enter temperature safety.
Any ideas or recommendation is tremendous appreciated. Cheers!
