Step 8 - the battery stock very much, I inserted a credit card in between the casing and the battery to detach it. I guess that bending the battery is very dangerous!
Step 15 - This part means the black flat cable with the three buttons ;-)
Step 16 - The new display needed a small film of glue
Step 8 - yes, the battery stuck very much. It is very thin and it was difficult removing it without risk of bending it (what I estimate this very dangerous). I inserted a credit card between the battery and casing to detach the battery carefully from the casing.
Step 15 - “this part” means the black flat ribbon with the three buttons ;-)
Step 16 - of course when assembling again, a thin film of glue is required as there was no more adhesion from the previous display.
The good thing is that there are only two type of screws (the black and the silver ones) in opposite to iPhone where all screws have different lengths!
Thank you for this tutorial, the Huawey works again!