MacBook Air doesn't turn on after complete discharge of battery
Hey,
my MacBook Air 13” Mid 2013 was working fine up until this morning (never had anything spilled on it etc). I have been using it with an NVME SSD with an adapter for around a year without any issues. I replaced the original battery with an iFixit battery 2 days ago and everything was working fine, I had really good battery life again. I wanted to do the recommended calibration of the battery by fully charging it up until 100% and let the charger connected for at least 2 more hours, then discharge the battery completely to 0% and charge it up to 100"% again.
So what I did was: I charged it up to 100% and let the charger plugged in for a few more hours yesterday evening. Then I used the Mac for a few hours and left it turned on (via the App Amphetamine to prevent it from sleeping) until it reached 0-3%. When it reaches 3% (I think) it automatically shuts down to prevent complete battery drainage, but I thought I had to completely drain the battery, so I left the device unplugged like that for 4-5h more. To make sure, it was completely out of charge, I connected my smartphone to charge it with the last mAh left in the battery.
After that, I just plugged in the charger and let it charge until the charger showed the green light. And then I unplugged the charger this morning and turned the Mac on: No chime, no logo, no light, nothing.
I tried various things that were recommended on the web, watched so many videos, nothing helps.
-Resetting PRAM/NVRAM/SMC, didn’t help.
-Unplugging the battery and connecting the charger -> fan starts to spin, charger LED is orange, system doesn’t boot (no screen, sound, keyboard backlight) when pressing the power button
-Tried the same steps with the original battery and the original Apple SSD -> nothing changes
When I plug the battery back in and connect the charger, it starts charging the battery (orange LED) and turns green when it finishes charging (I guess). So I assume everything is fine with the battery (iFixit and Apple one)? And when I disconnect the battery and connect the charger, the fan immediately starts spinning, so everything is fine with the power circuit I guess? And when I press the power button (battery plugged in, charger connecteed) the fan starts spinning, so that’s fine too. Where’s the problem then?
I can’t believe this is happening. I have lots of important documents I need to access asap, my last time machine backup was a few weeks ago. I always kept my Mac clean, never damaged/dropped it, never spilled anything on it, why is this happening all of a sudden. Was it a mistake to fully discharge the battery?
Ah and if there’s no solution to this, can somebody tell me, if I can access my data on my NVME SSD via an adapter on a Windows/Mac device, to at least gain access to my folders (SSD was not encrypted with FileVault, but I had a password set for my user account, if that’s important)?
Thanks in advance for any advice!
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