Samsung S4 (GT-I9505) 'back' key not working. - Android Q&A, Help & Troubleshooting

I've rooted my phone and flashed it back to stock 4.4.2 (TWRP recovery) because I wanted more freedom than 5.01 gave me. Everything workeds fine until it did an OTA upgrade back to 5.01.
At this point the back button stopped responding (menu button was fine). When I pressed the menu button both of them lit up, but the back button still did not respond.
I put it back to 4.4.2 again and the buttons worked just as they should, but again after an OTA upgrade the back button stopped responding. Getting tired of this, I flashed various other ROMs from Stock 5.1 to CM12.1 and whichever one I choose the same problem occurs. Only when I put it back to 4.4.2 does everything work normally.
I know I'm not the only one who has experienced this and I'm told that Samsung is aware of it happening in a very few cases, but no cure has appeared and it is getting really frustrating. Today I flashed a really great-looking ROM, which is a port from the S6 for the S4. There are one or two little issues with it, but guess what? Yes, the back button is disabled again. I have switched on the accessibility menu option, which puts a floating icon on the screen which when pressed has a few options, one of which is to go back, but this is only a workaround kludge not a solution to the problem.
Is there an expert out there that can tell me what all the later ROMs have in common which disables the back key? There is nothing intrinsically wrong with the key mechanism, such as it is, because it works perfectly under 4.4.2. I have the feeling that since this only affects a relatively few S4's the problem will not be progressed.
Does anyone out there know what is going on and can anyone help me, please?
KC

Related

[Q] Home button not working

Hi guys
I just got the phone yesterday (phone is stock everything not even rooted) and it has been working fine but now the home button has stopped working.
Will not wake the phone
When in applications will not return to the home screen.
Are there any settings I should check or just return the damn thing? I have LauncherPro installed but have since switched back to the stock launcher. I can't do anything now because the button does not seem to be working.
Thanks,
Elliott
EDIT: Just did factory reset and still not working...WTF
Obviously a case of broken home button. Just return your phone and have it replaced.
Thanks I did and it works now...brand new phone and new iShieldz. Thank god this worked out great actually because I messed up putting my old screen protector on lol but now this one is perfect
Have there been a lot of cases of this happening? I searched before posting this but didn't really find any threads at all about it in the SGS2 forum.

[Q] After latest TW OTA update screen fails to register touch input

Howdy,
Over the past week since my Tab got the latest small update (whatever it was). Not the original large TW update but the small one that came after it. I've been having this problem where once a day the screen will refuse to register touch input and the only thing you can do is power cycle it by holding the power button down. The tab is not locked up as if you hit the volume rocker or the power button the interface elements pop up. You just can't touch them.
It usually happens after the tab has been sitting for about 8 hours and it's within a minute after I start using it. Generally I'm in the stock browser when this happens but I think I saw it happen with Dolphin. I have since uninstalled Dolphin as it was very buggy for me after the latest update and sometimes wouldn't come up at all.
Has anyone else had this issue and or know a solution?
Thanks
i got the same issue
and i read that this issue is quite "common" even before the touchwiz update..
Please use the Q&A Forum for questions Thanks
Moving to Q&A

[Q] Touch button doesn't work sometimes

Hiya all,
Got my HTC one few weeks back and think its freaking awesome. Love the phone, just one small problem.
Every now and then the two touch buttons (back and home) don't work, but not at the same time.
For example, im using facebook and look at an image. I try to go back but the button doesnt work so I have to use the home button. Usually it works again if u lock the phone the unlock it again.
Sometimes happens to the home button, like when you double touch the home button it shows recent applications. Again I have to lock and unlock it to get the touch buttons to work. Its not a really problem more of an annoyance, just hope it doesn't get worse. But still, I wouldn't expect this from a new phone.
I did email HTC support but they haven't got back to me, any thoughts guys?
I have rooted phones in the past and installed other ROMs, but I wanna keep the stock at least til the warranty is up on this phone. Also checked for updates, and found none.
So yeah, any thoughts
Thanks
Andy
killerb4dger said:
Hiya all,
Got my HTC one few weeks back and think its freaking awesome. Love the phone, just one small problem.
Every now and then the two touch buttons (back and home) don't work, but not at the same time.
For example, im using facebook and look at an image. I try to go back but the button doesnt work so I have to use the home button. Usually it works again if u lock the phone the unlock it again.
Sometimes happens to the home button, like when you double touch the home button it shows recent applications. Again I have to lock and unlock it to get the touch buttons to work. Its not a really problem more of an annoyance, just hope it doesn't get worse. But still, I wouldn't expect this from a new phone.
I did email HTC support but they haven't got back to me, any thoughts guys?
I have rooted phones in the past and installed other ROMs, but I wanna keep the stock at least til the warranty is up on this phone. Also checked for updates, and found none.
So yeah, any thoughts
Thanks
Andy
Click to expand...
Click to collapse
I would return asap. That shouldn't be happening although I heard this issue from someone else but most people don't have this issue.
I'm not an addict I just flash a lot.

[Q] Phone not responding to ANY navigation keys

Weirdest issue I've ever come across.
Phone is less than 2 weeks old and was working fine. No hard drops, no water damage. I was running CM 10.1 (3.1.10 Blade Kernal) without issues until today. All of the sudden the capacitive buttons stopped responding. The backlight still comes on.
I flash a recovery to Paranoid Android which I tried out before, still doesn't work. Pie controls work, but on screen navigation buttons don't respond.
In TeamWin Recovery the on screen navigation buttons also don't respond, which is super annoying since I can only do one task, and then have to hard reset my phone.
I did a factory reset and they still don't work. Any idea what's going on here?
chrriiiss said:
Weirdest issue I've ever come across.
Phone is less than 2 weeks old and was working fine. No hard drops, no water damage. I was running CM 10.1 (3.1.10 Blade Kernal) without issues until today. All of the sudden the capacitive buttons stopped responding. The backlight still comes on.
I flash a recovery to Paranoid Android which I tried out before, still doesn't work. Pie controls work, but on screen navigation buttons don't respond.
In TeamWin Recovery the on screen navigation buttons also don't respond, which is super annoying since I can only do one task, and then have to hard reset my phone.
I did a factory reset and they still don't work. Any idea what's going on here?
Click to expand...
Click to collapse
As per more experienced developers and contributors - parandroid is a mess (I am not sure whatever that means , since I have so far only tried CM 10.1 & Slimbean... )
Addicted2xda said:
As per more experienced developers and contributors - parandroid is a mess (I am not sure whatever that means , since I have so far only tried CM 10.1 & Slimbean... )
Click to expand...
Click to collapse
Well I first experienced the issue running CM 10.1.
Since then I've relocked it and loaded the stock RUU where things got REALLY weird. The navigation keys still didn't work and soon nothing was really responsive. I can't even get past the unlock screen. The ring bounces when I touch it but it won't drag and unlock. So it's still detecting something, but it's not really responding at all. I can't even turn the thing off now as holding the power button down restarts the phone. what is this i don't even....
bump!
I need help with this and after extensive searching, I haven't found anyone else with this sort of problem.
I'm trying to install a ROM via TWRP but my capacitive and on screen navigation buttons don't do anything, so I'm stuck without a ROM at the moment.

[Q] weird home button and notification panel issue

Hey dudes
So I'm on temasek's cm 11 rom, and yesterday, my battery died(it needs to be replaced, because the phone can't tell me how charged it is...) without going through the usual "shutdown" procedures. Now when I turn it on, put the pin in and stuff, it showed upgrading apps(???), and then loaded up. Now, nothing shows in that navigation/notification panel thing, and the home button isn't working. Otherwise it seems fine. Is there any way to fix this issue without flashing and losing everything? I tried flashing to a newer rom without a factory reset, but the notification panel and home button are still not working.
Any help is really appreciated!

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