Remove the screen similarly to how you removed the back cover in Step 1

Clean the frame from the remaining glue and glass shards if such are present

You can check the new screen by connecting the flexes coming from it, the battery, and the buttons, and turning on the smartphone as you normally do. Turn it back off and disconnect the flexes before attempting next spep

Apply the glue to the inner edge of the frame and quickly (within 1-2 minutes) attach the new screen, turn the phone screen-down on a clean even surface and press on it for 1-2 minutes for better adhesion

Remove the residual glue if such appeared on the frontal side