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Deze versie is geschreven door: Minho ,

Titel:

Shuts down when disconnected from AC

Tekst:

Hi everyone.

This is a follow-up to my [post|398852]. Thanks to everyone who replied and helped out. I finally got the MBA to boot and just about everything works (keyboard, camera, etc), except for the capability of automatically switching from AC power to battery power.

I have installed a brand new NewerTech battery (the old one wouldn't hold a charge), it t was fully charged by the MBA and recognized by coconutBattery. However, whenever I disconnect the MagSafe, it immediately shutsdown. I tried a NVRAM reset, and SMC reset and a SMC Bypass but nothing seems to solve the problem.

I suspect something on the board given that it was water damaged but I am hoping for a little guidance. I checked the PBus Supply & Battery Charger circuitry (U7100) but haven't found anything obvious yet.

Hopefully someone has some ideas.

@mayer @oldturkey03 @danj @reecee @rany

Apparaat:

MacBook Air 13" Early 2014

Status:

open

Goedgekeurd antwoord:

401714

Origineel bericht door: Minho ,

Titel:

Shuts down when disconnected from AC

Tekst:

Hi everyone.

This is a follow-up to my [post|398852]. Thanks to everyone who replied and helped out. I finally got the MBA to boot and just about everything works (keyboard, camera, etc), except for the capability of automatically switching from AC power to battery power.

I have installed a brand new NewerTech battery (the old one wouldn't hold a charge), it t was fully charged by the MBA and recognized by coconutBattery. However, whenever I disconnect the MagSafe, it immediately shutsdown. I tried a NVRAM reset, and SMC reset and a SMC Bypass but nothing seems to solve the problem.

I suspect something on the board given that it was water damaged but I am hoping for a little guidance. I checked the PBus Supply & Battery Charger circuitry (U7100) but haven't found anything obvious yet.

Hopefully someone has some ideas.

@mayer @oldturkey03 @danj @reecee @rany

Apparaat:

MacBook Air 13" Early 2014

Status:

open