samsung lcd remove and reinstall without damage it

hello

i think must open thread for solution -opinion
for samsung lcd remove and reinstall without damage it

simple and cheap phone like j3-2017 j5-2017 need to put out lcd
for make any serice inside

that problem is old.....start from samsung s-5 and after

now is very rarely

so far I have not managed to have a good effect

maybe because i dont use very hi temperature......I'm afraid I do not do damage

i use hot plate 85c for 5 minute .....but lcd is not easily dismantled

my next step is to buy baku bk-7321

on youtube are many solution but i think is fake


your solution ???