Home button doesn't work on a lock screen, but works when unlocked

Hello. I face the same issue on a Iphone 7. From time to time , but every day, when phone is locked , to unlock it i have to press first the power button and then the home button. i don't think it's a hardware issue as the home button works when unlocked every time. Is there a fix found ? Does apple support know about this bug ?

it is likely you are receiving the touch ID error message because you didnt transfer your original touch ID button over to the new screen, the third part button that came with the screen will only work as a home button without touch ID functionality. To clear this error you need to recover your original button that came with the phone and transplant it onto the new screen.

hope this helps.

Same problem on my 5s, only that my whole iphone is original. Having this problem for a week or so... when the phone is unlocked everything is fine. Even when i lock it and go back to it in a short period (2mins) the button works (touchid also) but if the phone is idle for some time the home button and touch id dont respond. This is frustrating, because i dont need accesive touch when im in the phone, and i cant unlock my iphone normally

Great care must be taken when removing the home button. It is easy to damage the very fragile home button flex cable while removing it. I suspect this is the cause of the symptoms you are experiencing. You can replace the home button but you will lose the Touch ID functionality. You already have so that won't yield in a net loss.

I have a similar issue on my Iphone SE. The home button will work to 'wake-up' the phone from a black screen. However I cannot use the home button after this to bring me to the screen for entering the passcode. I've also turned on the accessibility menu option to add a virtual home button to the touchscreen. However this virtual home button behaves exactly the same way. In order to get to the screen for entering the passcode, I swipe left and try to open an app, which brings me to the passcode screen and from this point forward my home button operates normally.

So - only when my phone is locked is the home button and virtual home button useless. This strikes me as a software issue and not a hardware issue.

Same issue. Phone is all original. On lock screen the Home button won’t work; not hardware issue as the button works fine on all other screens, so must be a software issue.

I had a similar problem (actually, exactly as @Robert Rayfield described). I’ve done many screen replacements and also the whole headphone jack/charging port which is much more involved, but it started a while after any repair. Touch ID was also working for card payments.

I thought this must be a pure software problem, but as soon as Touch ID failed completely, the button suddenly worked ‘normally’ again - i.e. I can get straight to the ‘enter passcode’ prompt by pressing it.

In hindsight, the Touch ID had been getting increasingly temperamental for payments, so I guess that the software handling the lock screen can only deal with a perfect or no connection, whereas the s/w handling payments has some retry logic.

Difficult to know whether the S/W is behaving as intended, but my conclusion would be that this is a symptom of a failing (but not yet failed) touch id connection.