Digitizers lift back off after replacement
I own a computer repair shop and have alot of experience working on mac's and pc's. I recently started offering phone and tablet repair services. I dont really have any issues with any other device. But I have worked on 3 difference Ipod touch 4th gen devices and every time I install a new digitizer the top left hand corner starts to seperate from the casing, its like the adhesive isnt strong enough to hold it there, Ive read forum after forum.
I remove the old digitizer, re-install everything test fit the digitizer, clean the digitizer frame with alcohol. apply the adhesive according to the guide. Then press the screen into the frame. then the top left hand corner separates every time. I have disassembled the devices and checked to make sure everything is in place, but there is either something out of place pushing the digitizer's back up or I am continually getting defective 3m tape. Is there a better adhesive I should be getting?
I'm assuming this is something small and stupid I have simply overlooked. Any help would be greatly appreciated.
Is this a good question?