Chosen Solution

Is it possible to replace a broken ribbon cable that is part of the screen ? It looks as if the cable to the smallest contact was damaged when replacing the screen.

HeyMargit. This is classic iPhone 6s backlight filter damage. No question. You can do an out of warranty swap at Apple for $299 USD, or have a microsolderer change your backlight filter. It is a straightforward repair and quality shops offer no fix = no fee to look at it. We just fixed one from Norway last month. A shop called RepLab–they can give your more info since they’ve seen this exact issue before. Don’t blame the electrician–most of the stuff on the internet about how to change screens fails to stress how important disconnecting the battery first is before iPhone screen replacement. The 6s seems to be highly susceptible to backlight failure from simply pulling the screen while the device is still under power. Sorry for your luck, but definitely repairable.

No, its not possible to replace the cable on the LCD without very very expensive equipment. In saying that, more commonly, the back-light diode, filter, or driver ic is blown. Did you disconnect the battery prior to changing the screen? If not, I wouldn’t mind betting you have bigger issues than an LCD cable :S

This happens on a regular basis when an esd strap isnt used, my theory is a static build up in the phone through handling. The fix is easy… disconnect the battery, remove all lcd connectors (prox sensor,backplate (where applicable) and lcd connectors. while the battery and connectors are still disconnected hold the power button for 20 seconds and release it. (this drains any static in the system). Finally connect all connectors for the lcd and reconnect the battery. If the lcd is in working order it should power on once again.

Get a screen you know works, and connect it to your phone. If the screen works, then the cable is your problem. If a known good screen isn’t working, then you know you are in need of a board level repair.

Think you answered your own question. If a cable is damaged it will cause a black screen.

May you please tell me why screen is working fine when it raised on ip6 And after putting it down it goues black?