The E5 Play comes in more than one model. Mine is the XT1920-15, there are others which have a slightly different size screen so take care when ordering.
The screen removal is like most phones a question of melting the glue with a hairdyer and pulling the screen out with a sucker or plastic splodger.
The LCD and touch digitizer are connected by two cables which pass through to the back of the case. The E5 play has two boards, a motherboard and a subboard which each have their own plastic covers, removable separately by removing a plethora of small Torq screws. Some screen kits come with the wrong screwdriver.
Both covers will need to be removed, as the digitizer connects to the sub board and the LCD to the main board.
Here comes the tricky part. The LCD cable has been hidden under a sticky plastic sheet, which needs to be peeled off to access the cable. While doing this I damaged another cable between the MB and SB which looks similar to the LCD flex cable.
The LCD cable just pushes into its socket, while the digitizer cable has a brown clip which needs to be flipped to release the cable end.