How to Replace the Battery in iPhone XS Max?

For screen replacement, it is necessary to completely disassemble the iPhone, so it is suggested that you get a few small pieces of paper before starting the repair to label the parts and especially the origin of the screws. 

The necessary tools and equipment required for this repair are; A case opener, a small Phillips screwdriver, a clip to eject the SIM tray, and the replacement iPhone screen; once you have them on hand and the paper labels aligned, make sure your hands are clean before starting the repair start. 

What are the different steps to follow?

First, remove the SIM tray by inserting the paper clip into the hole on the top of the iPhone that lies next to the power button. When the clip is in place, the SIM tray should pop out. Then use the can opener to remove the plastic back of the iPhone, which is same as that of the Samsung galaxy tab parts in terms of appearance. 

The next step is to remove the two small screws on either side of the back that holds the metal case in place and another screw at the top, in the middle where you removed the plastic back by placing it on the paper label. 

The next step in screen repair requires caution; it is necessary to remove the antenna cable from the iPhone, fixed with glue in three positions, and carefully peel off the glue dots. After that, you need to remove ten screws on the sides of the iPhone and place them on the "Outer Shell" paper label. After this, the next step is to remove the LCD screen of the iPhone XS so it will fit into the replacement screen. This is possibly the tough part of the repair and should be done with extreme caution.