Right capacitive button not working anymore - ZTE Axon 7 Questions & Answers

Hey guys,
I recently changed the battery on my A2017G, I was very careful not to damage anything and to dismount everything properly.
After putting the phone back together, somehow it didn't want to boot anymore (bootstack screen, and then blinking red led with everything except fastboot).
I figured it was a software issue, since it got solved with a full EDL flash. I still don't know how a battery change could have messed that up.
But now, the right capacitive button (recent apps) doesn't react at all anymore. The home and previous buttons still work perfectly.
I flashed other EDL roms, did a full factory reset, or tried swapping buttons, nothing changes, still the right one isn't reacting.
I carefully checked all the flex cables and connectors inside the phone, they all seem as good as new, no scratch, bend or any other damage.
So my question is, could it be a software issue? Since the EDL full flash is not always doing things correctly...
If it's a hardware issue, I guess I could have messed up the screen flex cable without leaving a mark on it.
But wouldn't that prevent all the buttons to work?
I just want to be sure, before buying a new screen frame (those aren't cheap).
Thanks

Stremon said:
Hey guys,
I recently changed the battery on my A2017G, I was very careful not to damage anything and to dismount everything properly.
After putting the phone back together, somehow it didn't want to boot anymore (bootstack screen, and then blinking red led with everything except fastboot).
I figured it was a software issue, since it got solved with a full EDL flash. I still don't know how a battery change could have messed that up.
But now, the right capacitive button (recent apps) doesn't react at all anymore. The home and previous buttons still work perfectly.
I flashed other EDL roms, did a full factory reset, or tried swapping buttons, nothing changes, still the right one isn't reacting.
I carefully checked all the flex cables and connectors inside the phone, they all seem as good as new, no scratch, bend or any other damage.
So my question is, could it be a software issue? Since the EDL full flash is not always doing things correctly...
If it's a hardware issue, I guess I could have messed up the screen flex cable without leaving a mark on it.
But wouldn't that prevent all the buttons to work?
I just want to be sure, before buying a new screen frame (those aren't cheap).
Thanks
Click to expand...
Click to collapse
You would need to buy a new screen (i.e. around $90) so I say you should start looking into gesture navigation or at least on-screen navbar if nothing works out... the capacitive sensors are affixed to the screen.
I usually had my Back button crap out, but weirdly enough it would start working either after doing a lot of pressure on it or after a reboot.
The capacitive button surely comes through the screen connector, did you check that?

Choose an username... said:
You would need to buy a new screen (i.e. around $90) so I say you should start looking into gesture navigation or at least on-screen navbar if nothing works out... the capacitive sensors are affixed to the screen.
I usually had my Back button crap out, but weirdly enough it would start working either after doing a lot of pressure on it or after a reboot.
The capacitive button surely comes through the screen connector, did you check that?
Click to expand...
Click to collapse
Yes I did, it seems in perfect state.
My theory is that I might have accidentally put some pressure on this flex connector with my plastic tool, while trying to remove the battery.
There are no visible damages, but maybe it's just damaged inside.
Right now I'm using the MiPop, but it's less than ideal...
I wish there was a way to put the on screen softkeys back and disable de hardware ones.
Probably enabling the softkeys isn't that hard, but disabling the hardware ones... ?

Stremon said:
Yes I did, it seems in perfect state.
My theory is that I might have accidentally put some pressure on this flex connector with my plastic tool, while trying to remove the battery.
There are no visible damages, but maybe it's just damaged inside.
Right now I'm using the MiPop, but it's less than ideal...
I wish there was a way to put the on screen softkeys back and disable de hardware ones.
Probably enabling the softkeys isn't that hard, but disabling the hardware ones... ?
Click to expand...
Click to collapse
Try Fluid Navigation Gestures, I'm currently on another phone with navbar and i'm using that. it's very nice and doesn't use screen space
To enable the navbar you should be on a custom ROM or at least on Chinese MiFavor, I'm not sure if it's possible on G/U systems and I recall not being able to enable the navbar on these

actually I just found that:
https://forum.xda-developers.com/axon-7/themes/a2017g-navigation-bar-enabler-disabler-t3740817
since I'm also using raystef66's custom rom, I guess it's perfect

Related

Fade Out; WSOD; White screen coloured lines

I know there are others dying to fix this problem. Apparently there is a back "connector" that gets loose. If someone has fixed this please show me which one it is and how you fixed it.
It is the connecter between your mobo and the screen itself. Its come partially lose on one side. You need to dis-assemble your device, then remove and re-insert the little flex cable back into the slot, and all should be well!
hey thanx heaps man. i have it apart and didnt want to put it back together til i knew what the cause was.Wicked!
also the flex/ribbon cable is very sensitive. i will dremel the part of the case that touches the side of the ribbon cable. i am also thinking about coating it with something to make it last longer. replacements cost 40 euros
All good ideas! tell me what u decide to coat it with. i put it back together and made sure that connection was in right but it didnt work, (WSOD 5mins after assembly), going to try putting something underneath to keep it tight when its all fixed together. thanks again for your help guys.
I have the same issue, but also my touchscreen is affected to, touchscreen wont work when you slide keyboard open, sometimes i have to open very slightly for touchscreen to work.
The ribbon cables are very delicate, and it is known that slide open phones are bad for these ribbon cables, if cleaning and securely connecting them and the problem persists, its probably a damaged ribbon cable.
My phone does the same screen problem, where it sometimes gets lines down one side of the screen and gradually fades out, putting the phone into standby and back on brings the screen back to normal but it sometimes repeats several times.
I have noticed that it very rarely does it when the keyboard is exposed, it does it most frequently with the phone closed. And its more likely to do it when there is alot of white background, like in certain option screens, for example when in camera options does it alot.
In my case i suspect that the screen itself is faulty (hardware) and the touch screen cable has been damaged, since sliding out the keypad affects on weather it works, doesnt work, or works as if not calibrated.
emjay87, sorry to say it but i suspect your display is faulty or the ribbon is damaged. Replacement is easy to fix, but make sure you get the right screen, as far as i remember there are 2 different screens for this phone. They have different ribbion cable connections. One gold and ones white i think.

Screen problem when opening (Wing)...

A friend of mine brought me his Wing to look at for him. If I turn on the phone on it boots up and the screen looks just fine. When I slide the screen opened to use the keyboard the screen freezes and when I close it again it gets all jumbled up. There are lines going through it and I can not make out anything. The phone isn't locking up at this point because I can press menu buttons and other hard buttons and see the screen react, I just can't tell what is happening.
I assume that this is a hardware problem. I was thinking that the cable that connects the screen may have been jarred loose or damaged in some way. If that is the case do you think that it would be as easy as opening it up and repositioning the cable? I don't have any experience with this phone specifically so I don't know if this is a common issue.
I was also wondering if it is possible that this is just a software issue. Maybe the function that rotates the screen for use with the keyboard is messing up and jumbling the horizontal and veritcal lines when going back and forth. I was thinking about doing a hard reset and seeing if this clears up anything. Any thoughts?
I appreciate any help. This forum has always been there when I needed help in the past. I'm sure somebody out there has much more experience and knowledge that I have and can lead me in the right direction.
Thanks for any and all help!!
Update...
So I went ahead and tried the hard reset first hoping that it might be a software issue. I am now at the screen that says "Tap screen to setup your Windows Mobile based device." No screen touches are being recognized. This seems to support my thoughts that there is a loose cable or bad connection. Agree?
I just slid the screen opened to see what would happen and it faded to white.
Yep, if my experience with the Wizard tells me anything, the flex cable from the main body of the phone to the screen is either loose or damaged somehow. Even a small nick or cut into the flex cable will cause it to stop working correctly. I would hunt up the Herald service manual and take your device apart and see what you can find.
Thanks ... I downloaded the service manual and plan on taking it apart. I have to make a run to the store though and buy a small enough Tork screw driver. T5 or T6 I believe.
Thanks again, I will post with my findings when I get going on it.
now what?
So ... I have the phone completely torn apart. I do not see any loose or damaged cables. It was dirty inside the phone but other than that everything looks just fine.
Does anybody have any advice as for things to look for, that might be causing this problem, while I have this thing torn apart?

Buttons not working

Hey my Touchbuttons on the bottom don't work.
I allready did a hard reset but it did not help.
Is there any way of a homebutton build into the software (like some androids have it)`?
Thanks
So, you can use the rest of the touchscreen (digitizer), but not the buttons on the bottom. I admit, I have this issue on my SparkW once in a GREAT while (both of them that I have used), but the entire digitizer stops working and I have to yank the battery to restart the phone, then it works fine.
Just the bottom buttons not working is weird though. Have you ever taken the phone apart, perhaps to install a higher capacity SDcard? Maybe a digitizer wire got loose then....
...other then that, warranty the phone if you can, if not, maybe you need to replace the digitizer?

[Q] Bottom half of screen not responding to touch

I had an exam and removed the battery for my phone for the duration. When I put it back in, the bottom half of my screen stopped responding to touch. The screen itself is unharmed and uncracked. The S Pen still works flawlessly. However, the bottom half of the screen ("above" about 890 pixels on the Y axis) simply does not respond to normal touch. In addition, the volume buttons no longer change my notification volume. They still work for music volume, just not touch volume. When I long-press the power button, the power menu sits at the very top of the screen and has black covering the whole bottom of the screen for some reason. When I receive calls, the buttons are right at the top. Because of this, this seems to be some sort of software issue, but I have no idea what would cause it. Has anyone with more experience with Samsung devices seen this before? Multiple restarts and battery pulls have done nothing.
EDIT: In case anyone else encounters this, it had something to do with my case. I think my phone thought it was a smart cover for some reason. I enabled and disabled smart cover and then removed and replaced the case. It's working fine now.
EDIT: Never mind, that was a coincidence. The issue is DEFINITELY that the phone thinks it has a smart cover on it, but it has nothing to do with my own case.
gilros said:
I had an exam and removed the battery for my phone for the duration. When I put it back in, the bottom half of my screen stopped responding to touch. The screen itself is unharmed and uncracked. The S Pen still works flawlessly. However, the bottom half of the screen ("above" about 890 pixels on the Y axis) simply does not respond to normal touch. In addition, the volume buttons no longer change my notification volume. They still work for music volume, just not touch volume. When I long-press the power button, the power menu sits at the very top of the screen and has black covering the whole bottom of the screen for some reason. When I receive calls, the buttons are right at the top. Because of this, this seems to be some sort of software issue, but I have no idea what would cause it. Has anyone with more experience with Samsung devices seen this before? Multiple restarts and battery pulls have done nothing.
EDIT: In case anyone else encounters this, it had something to do with my case. I think my phone thought it was a smart cover for some reason. I enabled and disabled smart cover and then removed and replaced the case. It's working fine now.
Click to expand...
Click to collapse
I've had much the same problem. While the S-Pen was able to make selections that the touchscreen wouldn't, other S-Pen functions such as Air Command and being able to start an Action Memo wouldn't work. Waiting for an extended period of time (like 24 hours) and all of a sudden it started working again. However, while I was waiting, rebooting - even performing a factory reset - didn't' fix it! I just now rebooted it and it's not working again, and it's not in a case.
Where do you find the option to enable and disable Smart Cover? On the Note 2, it was (apparently) under Security / Device Administrators, but I don't find it there. The only option I could find was in Accessories / S View Cover / Automatic Unlock but changing this setting (including rebooting between settings) hasn't solved it.
hiroller173 said:
I've had much the same problem. While the S-Pen was able to make selections that the touchscreen wouldn't, other S-Pen functions such as Air Command and being able to start an Action Memo wouldn't work. Waiting for an extended period of time (like 24 hours) and all of a sudden it started working again. However, while I was waiting, rebooting - even performing a factory reset - didn't' fix it! I just now rebooted it and it's not working again, and it's not in a case.
Where do you find the option to enable and disable Smart Cover? On the Note 2, it was (apparently) under Security / Device Administrators, but I don't find it there. The only option I could find was in Accessories / S View Cover / Automatic Unlock but changing this setting (including rebooting between settings) hasn't solved it.
Click to expand...
Click to collapse
Sadly, it was just coincidence that it randomly stopped happening when I enabled and disabled the auto-unlock feature with Smart Cover. My phone started doing it again and I've been unable to repair it. I went to Verizon and they wiped my phone before telling me I'll just have to get it replaced with a refurbished one. Very frustrated. Shame there aren't any AOSP based ROMs yet (like CyanogenMod)-- they'd probably fix it since the cover thing wouldn't be a feature.
Bump.
Anyone know of the APK which would handle S View Cover behavior? If we were to disable that I imagine the problem would go away. I'm still not totally sure of the origin of the issue, but it seems to come from a combination of hardware and software problems. The hardware sensor thinks I have the case on, so the software changes things around. When I call people, I get the S View Cover style call screen. If I change the toggle in accessory settings to automatically unlock the phone when opening the cover, hitting the lock button automatically unlocks the phone as though I had no lockscreen. However, when this is disabled, the lock screen is NOT in the S View Cover form-- it looks stock. This confuses me.
Any ideas from anyone else getting the issue?
Same experience
Just to add my experience as I go. This afternoon I received an error that my SMS data could not be downloaded. Upon sliding down the notifications I was unable to control much. I ripped the majority of my hair out over this.... My pen works flawlessly everywhere though. I eventually discovered it works fine on the bottom half as you described. I have to run to some appointments, but I'll touch back after I try a few things.
gilros said:
Bump.
Anyone know of the APK which would handle S View Cover behavior? If we were to disable that I imagine the problem would go away. I'm still not totally sure of the origin of the issue, but it seems to come from a combination of hardware and software problems. The hardware sensor thinks I have the case on, so the software changes things around. When I call people, I get the S View Cover style call screen. If I change the toggle in accessory settings to automatically unlock the phone when opening the cover, hitting the lock button automatically unlocks the phone as though I had no lockscreen. However, when this is disabled, the lock screen is NOT in the S View Cover form-- it looks stock. This confuses me.
Any ideas from anyone else getting the issue?
Click to expand...
Click to collapse
gilros said:
Any ideas from anyone else getting the issue?
Click to expand...
Click to collapse
Maybe it was caused by the battery insertion or backplate replacement. Perhaps too much pressure or an uneven pressure damaged the circuitry, which is now loose and causing the intermittent error.
Or perhaps it was a static discharge from the battery.
Both cases seem to me to be warrenty items.
SGH-I717/SM-N900V/XDA Premium
Uh oh... I'm rooted and on Verizon. There isn't a way to unroot yet is there?
Frank Westlake said:
Maybe it was caused by the battery insertion or backplate replacement. Perhaps too much pressure or an uneven pressure damaged the circuitry, which is now loose and causing the intermittent error.
Or perhaps it was a static discharge from the battery.
Both cases seem to me to be warrenty items.
SGH-I717/SM-N900V/XDA Premium
Click to expand...
Click to collapse
thematt917 said:
Uh oh... I'm rooted and on Verizon. There isn't a way to unroot yet is there?
Click to expand...
Click to collapse
I thought the only thing necessary to unroot is to flash the stock ROM. The download is linked from the de la Vega post.
SGH-I717/SM-N900V/XDA Premium
I realized had about 3 days left on my Best Buy (elite+) 45 day return. Swapped for a brand new one :good: with no issues!
Frank Westlake said:
I thought the only thing necessary to unroot is to flash the stock ROM. The download is linked from the de la Vega post.
SGH-I717/SM-N900V/XDA Premium
Click to expand...
Click to collapse
gilros said:
I had an exam and removed the battery for my phone for the duration. When I put it back in, the bottom half of my screen stopped responding to touch. The screen itself is unharmed and uncracked. The S Pen still works flawlessly. However, the bottom half of the screen ("above" about 890 pixels on the Y axis) simply does not respond to normal touch. In addition, the volume buttons no longer change my notification volume. They still work for music volume, just not touch volume. When I long-press the power button, the power menu sits at the very top of the screen and has black covering the whole bottom of the screen for some reason. When I receive calls, the buttons are right at the top. Because of this, this seems to be some sort of software issue, but I have no idea what would cause it. Has anyone with more experience with Samsung devices seen this before? Multiple restarts and battery pulls have done nothing.
EDIT: In case anyone else encounters this, it had something to do with my case. I think my phone thought it was a smart cover for some reason. I enabled and disabled smart cover and then removed and replaced the case. It's working fine now.
EDIT: Never mind, that was a coincidence. The issue is DEFINITELY that the phone thinks it has a smart cover on it, but it has nothing to do with my own case.
Click to expand...
Click to collapse
I have the same issue. I ve been trying to understand why this happened but no luck. I tried everything from updating to reseting. I first noticed it when i took the battery out as well. but the problem kinda fixed it self so i thought the phone has a spaz or something. but when i removed the battery again it happened again.
I took it to the people i bought it from and all they can say is cause there were a couple of scratches on the side of the case that it may not fall under warranty...
i was pretty angry cause its only two months old and the warranty is for a year. and the problem started happening while i was overseas so its been like that for almost a month. hopefully the sales guy is just talk cause its not up to him its just his "opinion" as he put it.
Did they explain to you why this happened? or if this is a common issue?
Hope your new phone is ok
I have this problem intermittently also. Exactly as described above.
Sent from my SM-N900V using Tapatalk
any updates on this? im having the same problem now with my tmobile version. it fell facedown and the extended battery i had it in fell out. im going to try putting an aosp rom on it when i get home from work.
Timely post! I gave up. Verizon sending me a warranty replacement to arrive today.
Sent from my SM-N900V using Tapatalk
I have the solution!
Please. Let me know it worked for you, so people that doesn´t like to post and only read can solve this problem.
The Problem:
The half bottom screen is not working. Including the back button, the option button and the home buttom. they only work if you use the S Pen. Except for the home button. The volumes button do not work either. So the Solution is this..
take off the battery while the phone is on. YES, do not turn off the telephone and the take off the battery. Just take off the battery while the phone is on. It should work. I hope this is the solution.
One more thing. Do not allow your phone to dried up the battery completly so this wont happen again. It is better to turn it off before it dries up.!
Please let me know if it worked for you! I will let you know if this problems start again and if was only an coincidence.Hopes it not!
This tough me a good lesson! never buy a Phone from not trusted retailer, it is better to pay the full price a good store. The people that sold me the phone has a crappy warrraty like if the screen it cellphone is complete off they wont allow me to use the warranty and my phone had faulty battery conecction so it was off. then I paid 100 dollars to be repaired then this problem.
Ok, guys please let us know if it worked so people start saving their phone
Just happened to mine as well
Hard reset didn't work, on the phone with support trying to request a replacement now.
Finally Solved!
Hi
I had same problem
I did everything u said like:
mega wipe and changing rom
custom roms
taking out battery when it's on ( I Did this but I don't know It had any effects on my phone or not!)
taking out external card
But I still Had the Problem
Solution:
But I had a flip cover and I separated that from phone and thanks God,surprisingly It's Fixed and it works like a charm!!! after that I used my original cover and there is no problem till now.
Good Luck
Had the same problem of touch not working.
I tried everything as suggested by the members but my Note 3 is still not working right.Touch not responding all of a sudden in the bottom part of screen after i removed the battery for sim change. Please suggest something.
luas_13 said:
I tried everything as suggested by the members but my Note 3 is still not working right.Touch not responding all of a sudden in the bottom part of screen after i removed the battery for sim change. Please suggest something.
Click to expand...
Click to collapse
I haven't gone back to refresh my memory but it seems to me that all these occurrances were caused by removing the back cover. Try removing it and the battery and firmly press on every spot with your thumb. First place the device face down on table padded with a single layer of a blanket. Remove the SIM and SD card and firmly reinsert. Press the back cover on and try it, then return it for warranty if it is still bad.
Frank
I also was faced with this issue today at the start of my morning BUT I FOUND A SOLUTION
I have a Sprint Galaxy Note 3 N900P Stock ROM/ no root, no mods/custom kernels/boots etc...
My device side effects were
The bottom half of my screen was not responding to my fingers,
When you press the Power Button, The options appeared on the top section of the screen instead of being the center
When I press the volume up/down keys, The volume would raise and lower, But the screen that pops up and shows you the volume had increased or decreased didnt show up
Only way to use device was with S Pen
Basically all the issues everyone listed, I had them.
Now my solution; if the issue is a hardware issue.
After dissembling my phone to see what each hardware part of the phone controls, I've come to the conclusion that there was an issue with my USB Dock Connector section of the phone. I uploaded a image pointing which connector controls it. I tried to just wipe and clean it up a bit because mines had some residue on the underneath of it. Then I plugged it back in and it started back to work %100. After I tried restarting it a few times and shaking the device up, it still works; Although I am still going to order a replacement USB Charging Port with flex cable just in case.
fixed.
This is the definitely the hardware problem.
most likely happen if u ever dropped ur phone to the ground ----------- and reboot ur phone some what later time. (can be days or months).
Temp Solution to this problem is...
face down your phone to the flat floor or a table, gently hit the back, strong enough to shock the devide, but not that strong to crack your screen.
one other simple way is to drop your phone to the floor, screen is facing down, from about 30 cm high from the floor.
"simply, hit your device like you used to fix your ur old TV. "
that is just a temp. GL.

Is this LCD problem?

Okay, a couple of days have been past now. I was using my phone back then, playing a game and then suddenly the notification led lighted blue and then the screen turned black. But it's still working. I thought it got hanged out or empty battery but it didn't show the samsung logo. So I restarted it. It started and I can unlock the lockscreen but it's all showing black screen. Can't see anything. Menu, home, power, volume and back buttons are all working.
I brought it to phone repair centers and they all said it was LCD problem and I need to pay for like $100(converted) for a new LCD. Are they saying the truth or I can still resolve this?
Yes, there seems to be a physical problem.
I cant say if its the LCD itself, or a cable, or a conector, or the graphics chip on the board. But yes, it seems to be a hardware issue.
If you are able to work on stuff like that, open the phone yourself, clean the board with Isoprophyl, clean the connectors and put it back together.
Maybe that will already fix it. If not, let them take a shot.
If you are not sure about that procedure, there are a lot of videos on youtube showing you how to dis- and reassemble an S4.
First things first, Hi
Second, Only the S4 Active has an LCD screen, the others are AMOLED.
Third, You say that all the keys are working. Are you basing this on the touch sounds, or are the any visual indicators?
what reaper said... if you go ahead and get it repaired insist that you get an AMOLED panel and not an LCD, you'll regret it if you don't...
GDReaper said:
First things first, Hi
Second, Only the S4 Active has an LCD screen, the others are AMOLED.
Third, You say that all the keys are working. Are you basing this on the touch sounds, or are the any visual indicators?
Click to expand...
Click to collapse
yes. ui touchpad works, volume buttons, power and home. i can hear the lockscreen being unlocked when i swipe it after being locked.
it's just the screen is all black.
Backe888 said:
Yes, there seems to be a physical problem.
I cant say if its the LCD itself, or a cable, or a conector, or the graphics chip on the board. But yes, it seems to be a hardware issue.
If you are able to work on stuff like that, open the phone yourself, clean the board with Isoprophyl, clean the connectors and put it back together.
Maybe that will already fix it. If not, let them take a shot.
If you are not sure about that procedure, there are a lot of videos on youtube showing you how to dis- and reassemble an S4.
Click to expand...
Click to collapse
that's what i'm guessing but i let them use my phone and see the problem and they all said LCD considering it's amoled yeah. I may try that but i need tools to open it like small screw etc..

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