Bottom half of my screen keeps flickering

@jayeff can't really say I have experience with opening up a phone and don't really have a kit to do so..

@jayeff probably should note that I can see through the display no light shining needed but it's this annoying flickering between completely see through to somewhat see through so barely see through

@jayeff and I think it's when the phone gets hot it goes away and when it gets cold again it comes back dunno if the cable has anything to do with that? Might be a component like a capacitor or something that's not seated correctly or smthn like that.... Idk tbh

Hi @olian ,

I did mention about the possibility of a loose screen flex cable connection.

Usually with electronics when things heat up they fail more not less and when it is cold less often. That is why technicians when testing for a problem sometimes use a "freezer spray" on components of interest that they suspect are overheating to see if the problem stops when the spray is applied.

In your case a loose connection is the more likely as when metal heats up it expands and it might expand enough to make a good electrical connection again. When it is cold it contracts therefore an electrical connection may be lost or is high resistance. We are talking about fractions of a millimetre here as it doesn't take much to lose an electrical connection especially at the low voltages used in a phone.

The only way to solve your problem is to open the phone and first visually inspect the screen flex cable connection, verify that it is securely latched and not loose and then disconnect the cable and inspect the cable end connector strips to ensure that they are clean and maybe not oxidized etc and also inspect the systemboard connector that the cable is inserted into.

If that all appears OK and it still fails to work properly when the cable is re-inserted then the only thing left is to temporarily replace the screen with a compatible known working one and check what happens.

If the problem is gone and you can't make it happen by handling the phone in the normal manner, then the problem was in the old screen.

You cannot repair a screen you can only replace it.

If the problem is still there then it is on the systemboard. You would need access to the schematic diagrams to view the circuit for the screen power supply and video feed etc to help locate where the problem lies.

Usually the problem is in the screen though as there are more fragile connections in a screen than on a systemboard

If all this seems too daunting contact a reputable, professional mobile phone repair service and ask for a quote.

By now you should already know the cost of a replacement screen

@jayeff thank you for your quick reply. I'll try a reputable repair service as I dont fancy destroyi g my phone if I try something like that and I'll check back with you or anyone here if it works or if it doesn't :)