If you have purchased a matrix to replace the display, you will definitely need a hair dryer, with its help you need to heat the edges of the display, since the display frame is held by clips and double-sided tape, the frame is very easy to break. The display in the back cover is held on the side strips, you will also need a hairdryer to remove it. To install the display in the new back cover (with WWAN option), it must be placed on the new adhesive tapes, and the protective film does not need to be removed from the tape yet. When the display is aligned at the top left and right, press it on the left or right, and on the other side, pull the protective strip of adhesive tape on the bottom edge