I had corroded batteries in my Magic Keyboard. Exact same construction. I fashioned a thin blade from an aluminum can. It had enough column strength to slide between the battery and the aluminum battery compartment and with different solvents I was able to free the batteries. Now I have a trackpad that I am trying to recondition but not so easy. IPA and WD40 did not free the batteries this time, about to try dilute vinegar.

You're fine, I did that. LOL, I hope you weren't waiting 10 years to hear that....

https://support.apple.com/en-us/HT201372

Google is your friend.

Are these blades a series 5000 blade? The series 5000 blades I see have a tab?

You can put an NVMe drive (with an adapter) in a late 2013 MBP, but you must have updated the OS to the latest version because the original, native OS does not support NVMe. Use Clonezilla to make a bare metal backup and use Clonezilla to restore it once NVMe is installed. Clonezilla wont work going down in size ie from a 1TB to 500GB drive.

Persistence pays off. Lots of WD40 (over several days!) and several minutes of hard push/pull action (not rotation) freed the bind. The assembly does require a 90 deg twist but not until the assembly is about 1” out of the barrel. Brown goop dissolved in water followed by a desiccating IPA rinse, and I’ve got a keyboard again!

My Keyboard does not turn on and off and I want to inspect and clean the switch. I think a battery leaked and perhaps corrosion causes the round assembly to be stuck in the housing. Batteries come out easily - it is the circuit board assembly that is stuck. Does that assembly have to be rotated to remove it? I read that it was necessary to rotate the assembly 90deg to get it out? My assembly does not move in any direction….

Very small Phillips screwdriver. You can see the screw head in the red circle. It’s a very unusual screw, dont lose it….

Good work, THANKS!

I was wondering how it could be taken apart; no screws I could see. I found numerous irreparable, fatal S.M.A.R.T. errors a very short time after warranty expiration and I wished to put another drive in the shell as I like the extra USB3.0 ports.

There has to be a way to do this without breaking the tabs? Lots of picks? The picture in Step 2 showing tab locations is very helpful.

Swollen battery kept the home button from properly working on my phone, it spread the case apart slightly. Do you have battery problems?