My phone is stuck at homescreen (pattern lock) and it only responds to the double tap knock screen on. I tried to draw pattern, tap on emergency call, camera on lock screen and nothing gets registered on touch, except for knock screen on taps when screen gets timeout. The double tap is recognized easily anywhere on the screen. I pulled out battery several times and restarted but same issue. I have also refreshed my stock firmware via LGUP Tool but didn't help.
Basically, my touch is only responding to the knock on tap. Nothing else. I turned camera on via volume down button but touch doesn't work there too. What could be the issue? If the double tap is being registered anywhere on the screen easily why is not registering my touch after screen on!?. Please help!
rektbloodcells said:
My phone is stuck at homescreen (pattern lock) and it only responds to the double tap knock screen on. I tried to draw pattern, tap on emergency call, camera on lock screen and nothing gets registered on touch, except for knock screen on taps when screen gets timeout. The double tap is recognized easily anywhere on the screen. I pulled out battery several times and restarted but same issue. I have also refreshed my stock firmware via LGUP Tool but didn't help.
Basically, my touch is only responding to the knock on tap. Nothing else. I turned camera on via volume down button but touch doesn't work there too. What could be the issue? If the double tap is being registered anywhere on the screen easily why is not registering my touch after screen on!?. Please help!
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Click to collapse
Since no ones answering.
Not a solution or fix.
But have u dropped it. Or anything like that. Had screen replaced.
Seen it happen on the note 5s. Sometimes the flex cable for the lcd can become partially dislodged. Enough for touch not to work. One users only was responding to only 2 touches u till flex was pressed back in. Try usin lg flashtool. Method. Set to board dl and itll take u to the minios where it does a touch screen calibration
Again prob not case. But ive seen it happen
Possibly digitizer failure. But knockon working is weird
TheMadScientist420 said:
Since no ones answering.
Not a solution or fix.
But have u dropped it. Or anything like that. Had screen replaced.
Seen it happen on the note 5s. Sometimes the flex cable for the lcd can become partially dislodged. Enough for touch not to work. One users only was responding to only 2 touches u till flex was pressed back in. Try usin lg flashtool. Method. Set to board dl and itll take u to the minios where it does a touch screen calibration
Again prob not case. But ive seen it happen
Possibly digitizer failure. But knockon working is weird
Click to expand...
Click to collapse
Can you please explain the "Set to board dl and itll take u to the minios where it does a touch screen calibration " in a noob friendly way, there are a lot of lg flash tools I see. Also, no, I haven't dropped the phone or any water damage. It just stopped responding suddenly. Knock is responding smoothly anywhere on the screen. I have flashed the rom to stock, same issue.
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rektbloodcells said:
Can you please explain the "Set to board dl and itll take u to the minios where it does a touch screen calibration " in a noob friendly way, there are a lot of lg flash tools I see. Also, no, I haven't dropped the phone or any water damage. It just stopped responding suddenly. Knock is responding smoothly anywhere on the screen. I have flashed the rom to stock, same issue.
Click to expand...
Click to collapse
I use the same lg flashtool as lg g2 and 3. Older version. On main menu of flashtool u have a few options upgrade. And board dl. If u leave it. It takes u to the old factory reset status 2. And stays there if u set to board dl its gives fac status 3 and boots what is called mini os. First thing u have to do is touch the screen for a calibration test. Its required before mini os finishes booting. Then reboot as normal. Its kinda hard to explain. Its how i reflash stock firmware back from the g2.
Its always worked so ive never upgraded method across 3 phones.
U might look in restoring stock lg g2 flashtool. And replace with g4 .tot and .dll
Also have to set in device manager set to port 41. When in dl mode
---------- Post added at 01:27 PM ---------- Previous post was at 01:22 PM ----------
rektbloodcells said:
Can you please explain the "Set to board dl and itll take u to the minios where it does a touch screen calibration " in a noob friendly way, there are a lot of lg flash tools I see. Also, no, I haven't dropped the phone or any water damage. It just stopped responding suddenly. Knock is responding smoothly anywhere on the screen. I have flashed the rom to stock, same issue.
Click to expand...
Click to collapse
http://lg-firmware-rom.com/lg-tools-software/lg-flash-tools-flashing-lg-tot-stock-firmware/
I use version 1.81. And download the second file its the .dll to replace in flashtool directory
Related
My screen's backlight would not work after i press the sleep button.It would respond because as I randomly scroll through the screen I can feel the vibration of the touchflo and if i hold the phone up steady in a certain area with enough ligh such as the glare of the sun I can partially see the screen but its very hard. Only after i reset it the screen would come back in and the backlight would work until it goes into sleep mode after being inactive. I have tried installing a new Rom but it still didnt solve the problem. What do I do to repair this? I was assuming it was the flex but then I thought if it was the flex the screen would not work at all ? Can somebody help me
shortman055 said:
My screen's backlight would not work after i press the sleep button.It would respond because as I randomly scroll through the screen I can feel the vibration of the touchflo and if i hold the phone up steady in a certain area with enough ligh such as the glare of the sun I can partially see the screen but its very hard. Only after i reset it the screen would come back in and the backlight would work until it goes into sleep mode after being inactive. I have tried installing a new Rom but it still didnt solve the problem. What do I do to repair this? I was assuming it was the flex but then I thought if it was the flex the screen would not work at all ? Can somebody help me
Click to expand...
Click to collapse
I'm assuming you aren't asking where the backlight controls are. It seems like you're saying that the backlight simply doesn't come back on after putting the device to sleep.
If you are flashing custom ROMs, preform a task29 (search) and then re-flash the device. If this doesn't fix the problem (make sure you test it before installing anything.), flash the latest stock ROM and see if it continues. If so, see about a warranty repair/exchange.
If this is on a stock ROM, re-flash the latest stock ROM and see if this behavior continues. Test it before installing anything. If it doesn't clear up, ask your carrier about a repair or exchange.
Hey there,
sometimes after using phone for days, touch screen dont respond correctly on some specific placed on screen.
for example if i hold down at one point on the screen screen is thinking i press also like 1cm down and jumps up and down.
i will wait to re-produce the problem and post a screen from touchscreen with debug menu *#0*#
happens at least 3 times for now with multiple firmware, since a restart always is the solution i think its a samsung related software problem in stock rom.
Did you apply any screen protectors? Its a common issue with cheap ones
No, i dont have any. Also the its not always at the same position.
I have this E980 G pro and I cant use the soft keys (Back & menu keys), I never dropped the phone and its not cracked, so I dont know why this happens, also sometimes the screen stops responding and I have to turn off screen and turn it on again to use the touch, also the phone goes crazy and starts vibrating by using soft keys but im not touching the phone lol, I wiped the phone, i changed the rom and still happening, I dont know what to do...
So, I need to buy another screen?
Zero_Lord said:
I have this E980 G pro and I cant use the soft keys (Back & menu keys), I never dropped the phone and its not cracked, so I dont know why this happens, also sometimes the screen stops responding and I have to turn off screen and turn it on again to use the touch, also the phone goes crazy and starts vibrating by using soft keys but im not touching the phone lol, I wiped the phone, i changed the rom and still happening, I dont know what to do...
So, I need to buy another screen?
Click to expand...
Click to collapse
i think u can flash new rom or press 3845#*980# (LG G pro ATT )
dinhluan92 said:
i think u can flash new rom or press 3845#*980# (LG G pro ATT )
Click to expand...
Click to collapse
I flashed Telcel rom and it worked... by one night lol, at next morning after using the phone 10 minutes the problem has come back, what I can do in that menu?
What settings I should use?
no answer?
It really sounds like a hardware issue to me.
Daved+ said:
It really sounds like a hardware issue to me.
Click to expand...
Click to collapse
So I opened the phone, no corrosion, no damage, I dont know why the hell is happening this lol, but sometimes when I touch the soft keys It work, and works by a couple minutes (or secs ) but the problem comes again, what part I should buy? I dont think the screen cause the soft keys are not part of screen, but anyone knows? PLS HELP!!!!!
I just received my Z1C and I've been having lots of touch screen problems.
When I get to the unlock screen, a lot of times nothing will register on the touch screen. I have to push the power button to turn the screen on and off to get the touch screen to register, and a lot of the time I have to turn the screen on and off more than once to get it to work.
Another issue I'm having is in the settings menu. The top portion of the screen doesn't register any touches. For example, when I tap on the Wifi settings, nothing happens. I have to pull down the screen like half a centimeter, then tapping Wifi will work. This is so frustrating...
Is there any way to fix this without rooting, unlocking bootloaders, or installing a custom rom?
rumthin said:
I just received my Z1C and I've been having lots of touch screen problems.
When I get to the unlock screen, a lot of times nothing will register on the touch screen. I have to push the power button to turn the screen on and off to get the touch screen to register, and a lot of the time I have to turn the screen on and off more than once to get it to work.
Another issue I'm having is in the settings menu. The top portion of the screen doesn't register any touches. For example, when I tap on the Wifi settings, nothing happens. I have to pull down the screen like half a centimeter, then tapping Wifi will work. This is so frustrating...
Is there any way to fix this without rooting, unlocking bootloaders, or installing a custom rom?
Click to expand...
Click to collapse
already tried a hard reset ?
Yes. I've done a factory reset, and nothing has changed. Nothing registers on the unlock screen when I touch it. I have to turn the screen on and off multiple times to get it to work.
I am using the free screen protector that came with the phone. I doubt that's the issue though.
This can't be normal. I'm thinking I just got a lemon...
rumthin said:
Yes. I've done a factory reset, and nothing has changed. Nothing registers on the unlock screen when I touch it. I have to turn the screen on and off multiple times to get it to work.
I am using the free screen protector that came with the phone. I doubt that's the issue though.
This can't be normal. I'm thinking I just got a lemon...
Click to expand...
Click to collapse
if youre done a factory reset and the problem persist im pretty much sure its a hardware problem...
anyway, go to about -> diagnostic and make the touchscreen test.
any issues there?
if i were you, i would reinstall the firmware using SUS to be 100% sure its HW problem.
Already you try a hard reset. I think it is your harware problem. If you have a warranty you can go customer care. I am sure they solve your problems.
not working at all
Hi guys, my diplay is also down - broken - and i have a gesture lock on. I can not unlock the screen. How can I perform a hard reset without touching a display? I was searching whole internet for two days and nothing helped.
If I connect phone to the PC, it must be unlocked.
I need some files from internal storage :/
Greeting,
I have a weird issue where occasionally after I unlock my phone, my screen doesn't respond to touches.
The phone works and responds to physical button presses but not touch.
Not sure exactly when it started happening but I've noticed this since last week.
Any idea what might be causing this?
I'm running Android Pie 52.0.A.3.202.
Sydrox said:
Greeting,
I have a weird issue where occasionally after I unlock my phone, my screen doesn't respond to touches.
The phone works and responds to physical button presses but not touch.
Not sure exactly when it started happening but I've noticed this since last week.
Any idea what might be causing this?
I'm running Android Pie 52.0.A.3.202.
Click to expand...
Click to collapse
Please upgrade to the newest firmware.
Sydrox said:
Greeting,
I have a weird issue where occasionally after I unlock my phone, my screen doesn't respond to touches.
The phone works and responds to physical button presses but not touch.
Not sure exactly when it started happening but I've noticed this since last week.
Any idea what might be causing this?
I'm running Android Pie 52.0.A.3.202.
Click to expand...
Click to collapse
Got the same issue on 52.0.A.8.50. Usually opening the app drawer then hitting back solves it - otherwise none of the virtual buttons work.
Searching the web it seems touch screen issues are pretty common on this phone. I'm a bit surprised there isn't more being said here about it. Some experience delayed response, dead areas and no response at all. I have all those issues. Yes I am on the latest firmware. I bought the phone used with a cracked screen. I checked it out and everything seemed fine. I didn't use the phone, just set it aside til replacement screen came. I should have used the phone to thoroughly check it out but didn't want to go through the set up process as I was thinking of B/L unlock and root. New screen came, put it on and seemed to be working fine then screen would be unresponsive. I did factory reset, software update, software repair, went into settings and made sure sure everything was good there, nothing helped. The center of the screen (it's low and a bit off center) is pretty much dead. To open launcher I have to touch and hold near the top of the display. Touch and hold apps is tricky. Usually the app just opens. When I do get it to hold, I can't drag it anywhere. Also, icons in the drop down menu cannot be rearranged or edited. I can swipe up/down, side to no problem. Whenever touch goes dead completely, the home, back and minimize buttons go grey. Tapping the power button gets them back functioning again. . Function test fail. Free draw lets me make a few seconds of scribbles then freezes. The x and rectangle block draw does the same. Tapping power button does nothing to unfreeze either. The color test pass even the block one where you toggle on/off sections of the screen in blocks. It's really weird. First impression would lead me to the screen but it really acts like a software issue. From what I've read so far this phone uses two different display drivers. I not seen anything on how to change that and it would more than likely mean B/L unlock and root, which I'm not against doing. I would just like to know definitively if it's hardware or software. Any input would be greatly appreciated.
Thanks
bobsright said:
Searching the web it seems touch screen issues are pretty common on this phone. I'm a bit surprised there isn't more being said here about it. Some experience delayed response, dead areas and no response at all. I have all those issues. Yes I am on the latest firmware. I bought the phone used with a cracked screen. I checked it out and everything seemed fine. I didn't use the phone, just set it aside til replacement screen came. I should have used the phone to thoroughly check it out but didn't want to go through the set up process as I was thinking of B/L unlock and root. New screen came, put it on and seemed to be working fine then screen would be unresponsive. I did factory reset, software update, software repair, went into settings and made sure sure everything was good there, nothing helped. The center of the screen (it's low and a bit off center) is pretty much dead. To open launcher I have to touch and hold near the top of the display. Touch and hold apps is tricky. Usually the app just opens. When I do get it to hold, I can't drag it anywhere. Also, icons in the drop down menu cannot be rearranged or edited. I can swipe up/down, side to no problem. Whenever touch goes dead completely, the home, back and minimize buttons go grey. Tapping the power button gets them back functioning again. . Function test fail. Free draw lets me make a few seconds of scribbles then freezes. The x and rectangle block draw does the same. Tapping power button does nothing to unfreeze either. The color test pass even the block one where you toggle on/off sections of the screen in blocks. It's really weird. First impression would lead me to the screen but it really acts like a software issue. From what I've read so far this phone uses two different display drivers. I not seen anything on how to change that and it would more than likely mean B/L unlock and root, which I'm not against doing. I would just like to know definitively if it's hardware or software. Any input would be greatly appreciated.
Thanks
Click to expand...
Click to collapse
Maybe the Screen Connector wasn't 100% clean.
Or not only the screen is damaged.
I heard that the touch problems are mostly fixed with PIE. The closed source clearpad touch driver is..... Hoping Q gives us an further updated driver.
You still get sometimes ghost touches on higher workload or if the keyboard app is slow, but if you have dead spots the hardware sounds damaged.