In this video you can see how to safe disassembly your Samsung Galaxy A5 2015 if you need to replace some of the components.
Note: Be really careful with the screen ribbon cable as it tears easilly.
Heat phone to 90 degree (can use Heat gun or a hairdryer) and follow video.
I use playng card(only plastic) and spiritus 95%.
Remember: anything you do to your phone or on your phone is your own responsibility.
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