knock on not working - G2 Q&A, Help & Troubleshooting

My knock off when the screen is on works fine but if the screen is pff and i try to double tap to turn it on It doesnt work. I did a factory reset and also went back to stock. Still doesnt work. Do you tjinkmy phone is broken?

phat_cow said:
My knock off when the screen is on works fine but if the screen is pff and i try to double tap to turn it on It doesnt work. I did a factory reset and also went back to stock. Still doesnt work. Do you tjinkmy phone is broken?
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I am having the same issues. Everywhere i search says i should take it back an try to get it replaced.

You can go to the hidden menu by dialing 3845*#802# then go to setting and press update touch firmware. and all things will be all right.
Sent from my LG-D802 using Tapatalk

hany ahmed79 said:
You can go to the hidden menu by dialing 3845*#802# then go to setting and press update touch firmware. and all things will be all right.
Sent from my LG-D802 using Tapatalk
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Was goig to reply back with this solution.
It fixed my knock on!

It doesnt work with the SPrint version! the code is 5689#*980#!!! Stuck there

ankurcshah said:
It doesnt work with the SPrint version! the code is 5689#*980#!!! Stuck there
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It doesnt work with the vs980 variant! the code is 3845#*980#!!! Stuck there

The phone's gone bad. I sent to lg and they replaced the touch screen and fine now.

Related

I9505 screen won't turn on

I have a screen issue with my i9505. the display won't turn on at all. it boots up normaly, i get calls but the screen is off. the capacitive buttons work, iti is visible when connectec to the pc
It dosen't even show the samsung logo at startup and the touchscreen isn't active. I have tested the display and it works fine
Any ideeas?
saidx3cutor said:
I have a screen issue with my i9505. the display won't turn on at all. it boots up normaly, i get calls but the screen is off. the capacitive buttons work, iti is visible when connectec to the pc
It dosen't even show the samsung logo at startup and the touchscreen isn't active. I have tested the display and it works fine
Any ideeas?
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Click to collapse
Hi,
Have you rooted or modded your phone at all?
That should be fixed by a Samsung service or you should ask for a replacement.
malybru said:
Hi,
Have you rooted or modded your phone at all?
Click to expand...
Click to collapse
nope, stock rom, no mods. acts the same even after factory reset
saidx3cutor said:
nope, stock rom, no mods. acts the same even after factory reset
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Click to collapse
Hi,
Send it back and get a replacement.
There is no reason for any of that to happen.

[Q] LG Knock Feature stopped working

The knock on feature (double tap the screen to wake the phone up) stopped working... Is there an app that would give me this feature back or anything?
I really want the g3 when it comes out but I don't know about that since the problems with the screen on the g2.. Because I also have a dead spot in my screen towards the top
Variant is sprint LS980
nated0gg618 said:
The knock on feature (double tap the screen to wake the phone up) stopped working... Is there an app that would give me this feature back or anything?
I really want the g3 when it comes out but I don't know about that since the problems with the screen on the g2.. Because I also have a dead spot in my screen towards the top
Variant is sprint LS980
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Click to collapse
Have you tried updating Touch Firmware from the hidden menu?
vPro97 said:
Have you tried updating Touch Firmware from the hidden menu?
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Yes but the problem with that is that sprint variant don't have the touch firmware in the hidden menu
nated0gg618 said:
Yes but the problem with that is that sprint variant don't have the touch firmware in the hidden menu
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Click to collapse
my vs980 variants had the same problem with it . anyone can solution it .

N910T Touchscreen registering touch in wrong place?

So my phone started randomly rebooting (on stock touchwiz) so I flashed the stock firmware over it again with Odin. Booted up, everything seems to work. Except that the touchscreen (more so towards the lower half of the screen but also some at the top) seems to think my finger is 1 inch lower than where I'm actually touching. So like in settings, if I want to select an item, I have to touch two items above it. I went into dev settings and turned on "show touches" and I can clearly see that the touch point is being registered elsewhere on the screen other than where my finger is.
I've tried a factory reset and installing the stock firmware again but it doesn't seem to work.
Also, this doesn't seem to be an Android software issue because it's also happening in TWRP. Touches are all out of place.
Help!
EDIT: FIXED IT BY GOING TO THE DIALER AND DIALING *#2663# AND UPDATED THE SCREEN FIRMWARE. WORKS PERFECTLY NOW.
ajr901 said:
So my phone started randomly rebooting (on stock touchwiz) so I flashed the stock firmware over it again with Odin. Booted up, everything seems to work. Except that the touchscreen (more so towards the lower half of the screen but also some at the top) seems to think my finger is 1 inch lower than where I'm actually touching. So like in settings, if I want to select an item, I have to touch two items above it. I went into dev settings and turned on "show touches" and I can clearly see that the touch point is being registered elsewhere on the screen other than where my finger is.
I've tried a factory reset and installing the stock firmware again but it doesn't seem to work.
Also, this doesn't seem to be an Android software issue because it's also happening in TWRP. Touches are all out of place.
Help!
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Click to collapse
Hi, i have the same problem, but with the s-pen work fine.
lujanes said:
Hi, i have the same problem, but with the s-pen work fine.
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Click to collapse
Me too! With the S-Pen I can precisely select and use the screen. With my finger it's extremely out of place.
lujanes said:
Hi, i have the same problem, but with the s-pen work fine.
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Fixed it! Go to your dialer and dial *#2663# and then update the screen firmware
ajr901 said:
Fixed it! Go to your dialer and dial *#2663# and then update the screen firmware
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Click to collapse
Oh my god, perfect, Thank you!!!
Enviado desde mi LG-D850 mediante Tapatalk
lujanes said:
Oh my god, perfect, Thank you!!!
Enviado desde mi LG-D850 mediante Tapatalk
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Click to collapse
You're welcome. What's causing the issue for me is TWRP 2.8.7.0.
I am having the same problem on a n910g but the 2663 code does not work on my phone
---------- Post added at 08:41 AM ---------- Previous post was at 08:24 AM ----------
Restarted and tried code and works now
ajr901 said:
Fixed it! Go to your dialer and dial *#2663# and then update the screen firmware
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Click to collapse
That is goddamn fantastic! Thank you so much for that, you just saved me from pulling out even more hair. You are a king among men!
Worked for me on an Optus Note 4 (N910G) that OTA updated to Marshmallow a couple of weeks ago and had the touch screen problem since then. Tried this today, and finally relieved the touch screen is fine again. The phone is in perfect condition, was annoying me that perhaps it had faulty screen (co-incidental with FW upgrade) given how new the phone is (about 13months old).

touch screen not working help needed

SO not sure what is going on not dropped phone or anything now my lock screen will not unlock. And when coming to touch to slide to unlock or enter pin none of it works.
Anyone know the cause of this or why it is doing it. Phone is new never dropped or damaged or anything yet now it does not work.
Do a factory reset and look if it isn't working too on homescreen. If it is not going to work properly your only hope is sending phone to the service I think.
Sent from my ALE-L21 using XDA-Developers mobile app
Azaradel said:
Do a factory reset and look if it isn't working too on homescreen. If it is not going to work properly your only hope is sending phone to the service I think.
Sent from my ALE-L21 using XDA-Developers mobile app
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Did reset and also done reboot of Rom and now where askes about doing wipe and reset to factory as new touch screen not working. Guess gonna have send back.
Yeap .. it's a hardware problem .. when you're touch doesn't work on recovery,then it's something wrong with your touchscreen

Spen only working with capacitive buttons

So a few days ago I downloaded and flashed a kernel (accidentally) that wasn't meant for my device (Tapatalk error). After flashing my display was so off that I barely could use the phone, and literally was inches off on every touch. So I factory reset and then went back to stock with Odin. After this didn't work I read about hidden menu 2663 and after a general FW update my screen was usable again (yay!).
But now my issue is that the Spen stopped working. I changed the tip and no luck. Oddly enough, it works on the capacitive buttons, but not at all on the screen. Any ideas how I can get it back are much appreciated.
EDIT: Got it working. Required flashing a newer RON and running 2663 hidden code that had additional FW settings.
Sent from my SM-N9200 using Tapatalk
You might want to try recalibrating your device's internal hardware via the hidden options. Which should fix everything from the touchscreen accuracy problems to the capacitive buttons.
DarkGuyver said:
You might want to try recalibrating your device's internal hardware via the hidden options. Which should fix everything from the touchscreen accuracy problems to the capacitive buttons.
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That and EXACTLY that is what worked
Thank you very much for taking the time to respond.
Sent from my SM-N930F using Tapatalk
Dai323 said:
That and EXACTLY that is what worked
Thank you very much for taking the time to respond.
Sent from my SM-N930F using Tapatalk
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Hello my friend, i have the same problem with my note 4. i removed the spen and is detected but when i touch the screen nothing hapen. can you explaim what you do in the hidden menu? thanks
chor87 said:
Hello my friend, i have the same problem with my note 4. i removed the spen and is detected but when i touch the screen nothing hapen. can you explaim what you do in the hidden menu? thanks
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Hi there. Can you access the hidden menus? Are you rooted or stock?
Sent from my SM-N930F using Tapatalk
Hi friend. Is stock rom. Im enter in the hidden menu if you say. But if possible you explain to me what I need to do step by step. I appreciate that.
---------- Post added at 05:19 AM ---------- Previous post was at 05:15 AM ----------
Dai323 said:
Hi there. Can you access the hidden menus? Are you rooted or stock?
Click to expand...
Click to collapse
Hi friend. Is stock rom. Im enter in the hidden menu if you say. But if possible you explain to me what I need to do step by step. I appreciate that.
chor87 said:
Hi friend. Is stock rom. Im enter in the hidden menu if you say. But if possible you explain to me what I need to do step by step. I appreciate that.
---------- Post added at 05:19 AM ---------- Previous post was at 05:15 AM ----------
Hi friend. Is stock rom. Im enter in the hidden menu if you say. But if possible you explain to me what I need to do step by step. I appreciate that.
Click to expand...
Click to collapse
Enter this in:
*#2663#
Please screenshot the menu that appears so I can see which options you have available on your firmware.
Sent from my SM-N930F using Tapatalk
Dai323 said:
Enter this in:
*#2663#
Please screenshot the menu that appears so I can see which options you have available on your firmware.
Click to expand...
Click to collapse
This is The menu that appears to me my friend
chor87 said:
This is The menu that appears to me my friend
Click to expand...
Click to collapse
Run these 3 updates and report back:
Sent from my SM-N930F using Tapatalk
Dai323 said:
Run these 3 updates and report back:
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Click to collapse
I run the 3 update but stilk have the same issue. The phone detected when I remove the spen but all the screen not response. Just the back and menus button.
chor87 said:
I run the 3 update but stilk have the same issue. The phone detected when I remove the spen but all the screen not response. Just the back and menus button.
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Click to collapse
Hmm...Then go ahead and run the sensor hub update. Does the pen work on the capacitive buttons? Have you tried changing the tip (phone comes with spare tips for the Spen)?
Sent from my SM-N930F using Tapatalk
Dai323 said:
Hmm...Then go ahead and run the sensor hub update. Does the pen work on the capacitive buttons? Have you tried changing the tip (phone comes with spare tips for the Spen)?
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Click to collapse
I do de sensor hub update but is the same result.
Yes the pen work with the capacitive buttons.
Now I haven't spare tips, but I probe the same pen with another phone (note5) and work fine.
chor87 said:
I do de sensor hub update but is the same result.
Yes the pen work with the capacitive buttons.
Now I haven't spare tips, but I probe the same pen with another phone (note5) and work fine.
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Not that I think it would solve it, but have you tried a factory reset and then tried he FW update? Which version of A droid are you running?
Sent from my SM-N930F using Tapatalk
Dai323 said:
Not that I think it would solve it, but have you tried a factory reset and then tried he FW update? Which version of A droid are you running?
Sent from my SM-N930F using Tapatalk
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Click to collapse
My T-Mobile Note 4 also has capacitive buttons that do not respond to finger touch, but does respond to the Spen. I have tried restarting, changing the light timeout, factory reset, the secret menu updates talked about above, and have yet to find a fix. Any other ideas?
My T-Mobile Note 4 also has capacitive buttons that do not respond to finger touch, but does respond to the Spen. I have tried restarting, changing the light timeout, factory reset, the secret menu updates talked about above, and have yet to find a fix. Any other ideas?
Click to expand...
Click to collapse
Prior to the problem that you have mentioned, did you open your unit to say replaced boards or display assembly? Because if you do,the problem might be with the connectors not fitted well. One of those connectors from the display assembly was for the LED and Digitizer(capacitive) and the other was for the S-Pen.(It has this metal film that recognizes it)
duking said:
Prior to the problem that you have mentioned, did you open your unit to say replaced boards or display assembly? Because if you do,the problem might be with the connectors not fitted well. One of those connectors from the display assembly was for the LED and Digitizer(capacitive) and the other was for the S-Pen.(It has this metal film that recognizes it)
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Click to collapse
I did replace the screen and LCD. I double checked the ribbon connectors, but it can't hurt to check them again.
I have also this problem with screen..the bottom didn't work, but I solve problem with that code *#2663# I update those 3 things and my screen is back to normal.
I also have t-mobile sm-n910t ,and it was on stock rom.
Now I have custom rom so,these code dont work anymore..
Davidlb51281 said:
I did replace the screen and LCD. I double checked the ribbon connectors, but it can't hurt to check them again.
Click to expand...
Click to collapse
Tip: I used to have a hard time placing together those ribbon connectors in place. What i did was to placed a tiny slice of eraser to lift up those in place connectors so the motherboard could fit with a little amount of pressure. I hope this would work for you.
Best of luck!
Davidlb51281 said:
I did replace the screen and LCD. I double checked the ribbon connectors, but it can't hurt to check them again.
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Where is this ribbon? I replaced my board too
Sent from my Samsung SM-N910T using XDA Labs

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