topic Galaxy Z Fold 4 inner screen unresponsive when opened all the way in Fold & Flip Phones

Galaxy Z Fold 4 inner screen unresponsive when opened all the way

BabyDee909 — Wed, 28 Jan 2026 00:13:12 GMT

I had bought a Galaxy Z Fold 4 to try it out before I buy the newest one (I’m an iPhone user) and it was in like new condition. Randomly I noticed when i opened the phone up the inner screen wasn’t responding to my finger and froze so I closed it up, locked the phone and tried it again. From there the screen went black and hasn’t went back to normal. When it’s cracked a little or phone restarts the screen looks and works perfect just not opened all the way. Repair shop is charging me $400-700 which isn’t worth it. Anyone had this problem?

Re: NEED HELP!! Galaxy Z Fold 4

Robin621k — Thu, 22 Jan 2026 22:57:11 GMT

Where did you but it?
Can you return it?

Re: NEED HELP!! Galaxy Z Fold 4

Srb79 — Thu, 22 Jan 2026 22:57:39 GMT

You need new hinge and display

Re: Re: NEED HELP!! Galaxy Z Fold 4

BabyDee909 — Fri, 23 Jan 2026 01:07:44 GMT

Sadly no 😔

Re: Re: Re: NEED HELP!! Galaxy Z Fold 4

Robin621k — Fri, 23 Jan 2026 01:08:52 GMT

Sorry!

Re: Re: NEED HELP!! Galaxy Z Fold 4

BabyDee909 — Fri, 23 Jan 2026 01:09:34 GMT

I seen that some people online stated they changed the flex cable only and it worked. My screen is perfect cracked open, just not all the way open 😒

Re: NEED HELP!! Galaxy Z Fold 4

KingOfOnePiece — Tue, 27 Jan 2026 18:17:55 GMT

Yes — this is a known issue with some Galaxy Z Fold 4 units. The inner foldable screen can fail when partially opened, especially if the hinge or flex cable is stressed. Symptoms like yours — black screen when unfolded, working fine when slightly cracked or after restart — often indicate a faulty hinge connection or display flex cable.
Many users report repair costs $400–700, which is expensive because the inner foldable display is proprietary. Unfortunately, there’s no easy DIY fix, and temporary workarounds (like only using the cover screen) are the only option unless you pay for repair or replacement.