To begin we must extract the card tray, for this we will use the extraction tool.

With the help of some spikes we will unhook all the edges of the case, but as you can see in the fourth photograph, before completely removing the case we must apply a little heat to the fingerprint reader to be able to detach it from the case.

Taking advantage of the heat that we have given the fingerprint reader, we can take off the damaged rear flash that we have to replace with the same tool that we have used to take off the fingerprint reader.