I made it within 1 hour doing Steps 1-5, then Steps 46-50.

I removed battery heating the aluminium frame in the location of battery pack on the opposite side of the frame with NTE HG-300D Mini Heat Gun, and then gently peeling this battery pack with plastic spudger. You may need to reheat the area several times.

For 2 central battery elements you can't heat aluminium frame because they are below touchpad, so I peeled batteries a little bit with spudger, heated the underneath gently, and then peeled it again. Also dental floss could help cutting the glue underneath the battery.

This is the right guide for LCD replacement: https://www.youtube.com/watch?v=O3lhuy3s...

Thank you! Valuable comment!

If you're changing cracked EMC 2638 display to new assembly, there's two more steps:

Step 24: Use the tip of a spudger to flip up the metal retaining bracket on the display data cable.

Carefully pull the display data cable from its socket on the display assembly.

Step 25: Use the tip of a spudger to unplug bracket of the thermal sensor small cable near display data cable.

Carefully remove scotch tape covering thermal sensor. Using iSesamo or flat tip of the spudger carefully peel the thermal sensor away.

Check both connectors, probably one of them not seated well

And Samsung 850 Evo, but you should think how to solve the cooler problem before you start, because there's no thermal cable in those SSD's.