You need to screw the midframe down again before trying to do a power on test, not just reconnect the battery. If you don’t, you’ll get an overheat error icon (red thermometer in yellow warning triangle) when trying to power it on because the NFC sensor is on the midplate and the pogo pins connecting it need screw down pressure to make a solid connection. (No I don’t know why NFC is needed to power the phone on, or why its absence shows as an overheat error.) After figuring this out (shut out to Go Cell Phone Repair on Youtube) the battery repair worked fine.
I couldn’t find any on Newegg.com or Amazon.com. Google shopping turned up a few; but most if not all look like OEM parts. Anandtech’s predicting m.2 2230 and a new sdcard sized form factor (intended to compete against soldiered eMMC) are going to be common in next generation compact laptops; but right now it looks like it’s going to be slim pickings.
How much deeper do I need to cut with the picks/etc top and bottom. The ~1.5mm of my picks isn’t deep enough to cut all the glue on the bottom (haven’t tried on the top yet); my sides were ‘easy’ to free in that my bad battery already lifed them free leaving the screen secured only top and bottom. I can probe deeper with a card or spudger, but how much farther should I be going.
It had a few bits accessable without the hacksaw. They weren’t able to get at anything in the Surfacebook without cutting the fabric earning it an even worse score.
It gets 1 point for the few things you can get at non-destructively. It only gets 1 point because that’s a small fraction of the total system.