Screen Malfunctioning - ZTE Axon 7 Questions & Answers

Accidentally laid on my screen for 20 minutes and it started making random inputs and not registering any of my touch inputs. The screen was flickering a bunch so I figured it was hardware related and opened up the phone. Everything was fine internally. The phone turns on, but the screen does not and does not register touch. The notification LED lights up when I plug it into the computer showing that it is charging (shown as a portable device in Device Manager) and the fingerprint sensor registers touch. Sadly it is not in USB debugging mode so it is not seen by ADB or MiFlash.
I am running the January patch of crDROID. Initially flashed an EDL package (Axon7_LOS15.1_180925_B12Oki_TWRP_LABS1.3_FULL_EDL.zip) and then installed crDROID with TWRP. Could it be software related or did my screen just die? I was thinking of trying to factory restore or reflash, but I figured I would see if anyone has any similar experiences first. Sorry for the noob question.
EDIT: Messed around with it again. Unplugged the battery so my alarm would stop going off. Plugged it back in and now the display works but doesn't recognize touch. If I drag down from the top, I can get the notification bar to come down about a quarter of an inch, but that's the extent of touch it recognizes. I think I'm gonna try and dirty flash at some point using a mouse to navigate the screen, but it's looking like I must have just damaged the digitizer. Anyone have any idea?

Related

Touch Response Problem

I have a Sprint Touch [Vogue]. It has served me very well up until recently.
One day, I was using my phone normally when the battery died. No big deal right?
Well, I charge my phone and reboot it. For some reason, Windows is EXTREMELY slow and unresponsive. I figure that something vital had been corrupted by the battery's death, and that it was nothing that a hard reset couldn't fix.
I performed a hard reset.
I let the utilities for the first boot run to customize the phone. Everything seemed pretty much normal. I configured my settings, re-added my contacts, etc. Then I turned the screen off [with the power button].
I turn it back on later to do something. I touch the screen. It immediately and accurately detects the touch's location, but it continues detecting a touch. For 20-30 seconds, after the input has stopped.
It was strange, so I soft reset the device. It booted, with the same problem. So I performed another hard reset. I did some configuration [the response acting normal at this point], and then turned the screen off. Turning it back on brought the same problem back.
This problem still exists on my phone, even after numerous hard resets and even ROM flashes.
A better description of the problem: When the device is first turned back on [meaning brought out of standby], its touch response is messed up. It will immediately and accurately detect any touch input, but it will continue to detect the input for up to 30 seconds AFTER it has been released, as if you were holding it the whole time.
WHY is this???? My phone is almost unusable because of this!!!! I can still place/ receive calls, using the navigation buttons and the red and green buttons. But the touch response is screwed!
Can someone please shed some light on this problem I'm having?
Phone specs: Windows Mobile 6.1, HTC / Sprint customized. Minimal third party software is currently installed.
[I've already determined that third party software is not the problem, because i haven't installed any!]
Possible solution
Hi,
today I experienced something similar to your description - no touch response when I tried to pickup a call. The strange thing is that last night everything was working and no settings were modified nor programs were added/removed. The screen suddenly 'died'. At the moment I am using it through a program MyMobiler which brings the mobile display to the PC and I can use the mouse to control the phone (it is like VNC for the phone screen, the phone is connected with ActiveSync).
This is temporary solution untill I finish my backups of files, programs, settings. I didnot performed hard reset yet, hope this will solve my problem
In the following link there is a 'magical' solution - to remove the screen protector:
http://www.htcwiki.com/thread/1112981/LCD+or+Touch+screen+not+working
P.S. I had removed the screen protector and voilá - the screen is now touch responsive. The root cause of the problem obviously is the dust between the screen and the protector which results in constant screen pressing - and as a result no accepting my finger presses.
I hope this will work for you and others with similar problem.
I had a similar experience with an old Vogue.....In my case, there was no battery death precursor, but it just started acting up. Not too long thereafter, I noticed the screen/digitizer was forming what looked like an air bubble between the digitizer and the LCD on one place of the screen. The screen was becoming defective. I eventually had to buy another Vogue from a friend who didn't have a clue of the 6900's potential, and didn't want his anymore, so I got it cheap.
Sounds like your screen/digitizer may be on it's last leg.

Nexus 7 2013 Black Screen

Hi guys. Great forum
I tried to use my device today and it was unresponsive. The device was previously left on with full charge but when i came to use it the screen would not activate as normal. I tried turning the tablet on/off but still the screen was blank. I tried charging it but there was no charge icon.
I assumed a battery issue or some sort of bootloop. I followed the instructions on here to enter the bootloader menu but despite multiple power/volume button combos, nothing happened.
Then (stupidly) I realised the device was still switched on! I only realised this as i received an email and the notification light lit up! I am also able to contact and locate the device using Google Device Manager. So the device is switched on but the screen is dead
The device has not sufferred any physical damage. It was in a bag inside a case for a few hours with the screen locked.
Is there any way round this that you guys know of?
Many thanks in advance.
You might want to try the 2013 forum. They might have run into this before. This forum is for 2012 model
#stayparanoid

D800 display wakes up for a second, then goes black

Hello guys. I have unbricked the D800 using "very partition method" and it worked, I have download mode again. Stupidly enough after I fixed it I applied "very partition method" again because I was trying to get my PC to recognize the proper drivers. After that the screen went dark but the phone is working properly, I have flashed a rom successfully, although I couldn't see anything on the screen I knew I was in download mode because the correct drivers where diplayed on windows device manager. During boot I see the LG logo for half a second and when I press power button I also see the screen for half a second (asks to insert sim card) but then it goes dark again. It boots up normally, double knock working, touchscreen working, makes sounds, charging etc. I don't know if this is a hardware problem, maybe a short circuit caused some damage on the motherboard? or if it is a software problem. But apart from that the device seems to be working fine. Any help appreciated

Can I diagnose a phone with smashed screen?

A friend of mine lost his S4 I337m, but found it again after it had been run over by a car. I'm trying to determine if it's worth trying to replace the LCD or if there's other damage.
The LCD is just tiny shards of glass (I'm betting it was face down when run over) but while he didn't find the back cover, the mid frame is in good condition and after removing it, the boards don't have any obvious damage.
If I try to turn it on, it vibrates and the LED pulses blue. Then a bit later it does a longer vibraton and the LED flashes blue. It seems like it's powered up.
If I try to connect to Kies, it just says "connecting" forever and the LED turns red. Maybe it's prompting me to unlock the phone? There's no message from Kies to that effect though.
As I've never used this model of phone before, I have no idea what the normal behavior is. Are there any tools I can use via USB to check the "health" of the phone?
FYI, I'm pretty familiar with flashing Android phones (mainly Nexus devices) and have replaced the screen on a Nexus 5, so I'm not afraid of a challenge. I'm guessing this phone is stock, so probably have a locked bootloader and USB debugging disabled, so I'm not sure if I can expect much. Obviously without a screen I can't do much. Also, he pulled the SIM and SD card, not sure if that matters.
I'm going to try connecting using ODIN next.
I actually was in the same situation as you are about an hour ago. I was able to unlock my phone by using a USB OTG adapter to connect my keyboard to enter in the pin and unlock it. After that I was able to access my files, so i just kept taking screenshots while i navigated my phone using my keyboard - installed SideSync, accepted the permissions, and finally - was able to mirror my phone to my computer.
If your phone vibrates, and the LED works, then try testing the button three buttons when you have the phone on. the red LED light is only on when the phone is either powered off and charging, or the phone is powered on with the screen off and charging, so if tapping the power button changes between seeing the red LED and not (and a small vibration when tapping the back or window button) then that should mean it's just the lcd+digitizer
Anyway, feel free to ask me about any behavior about a working s4 with a broken screen, one more week until my replacement comes in the mail

V20 Black Screen

Woke up this morning and started using my phone, noticed that the screen became unresponsive for a few seconds at a time and then I saw some gray horizontal lines.
Did a battery pull and restarted the phone, however, the screen is completely black and I can still hear the boot sound.
It requires a pin to start completely and I can feel the vibration when I touch the location of the back button (the only navigation key available on the pin screen).
Since this started happening I have tried restarting several times and I have seen the "LG splash screen" once, it freezes, the boot sound plays and the screen goes black once again.
The phone is unrooted and has never been modified any at all. It is the US996 variant.
Has anyone ever faced this issue? Could it be the display itself and maybe a replacement LCD will fix the issuse?
UPDATE
Got past the pin screen and think the phone has fully booted, fingerprint scanner works, I can touch the navigation keys and get feedback and I am still getting notifications.
However, the main screen is still blank and the second screen shows the time surrounded by static surrounded. I have attached a photo.
Sounds like a hardware issue.
mausam233 said:
Got past the pin screen and think the phone has fully booted, fingerprint scanner works, I can touch the navigation keys and get feedback and I am still getting notifications.
However, the main screen is still blank and the second screen shows the time surrounded by static surrounded. I have attached a photo.
Click to expand...
Click to collapse
Hi Have you fixed the issue?
Hi
it looks like a corrupt bootloader,
Was it rooted? try to press with the phone off volume + and plug in the usb to enter in download mode, if you enter download mode go back to factory
gilbertlucas46 said:
Hi Have you fixed the issue?
Click to expand...
Click to collapse
Had to send it in to LG to have it repaired
Oddly enough once it was returned the problem reoccured a few weeks later after using an aukey quick charge3.0 charger that I had. Which was when it happened the first time but I didn't make the connection until the second time around
I got rid of the phone though
No more LGs for me, I haven't had much luck with them
Throw that charger seems like or the cable or the charger itself gone bad ,one charger killed 2 of my phones not diferent brands

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