Touch screen on bottom of screen is not working since 2 weeks. - Samsung Galaxy S7 Questions and Answers

2 weeks ago suddenly my phones touch screen from bottom stopped working, I thought it was temporary issue but it's moving on upward, now my touchscreen from right side is also stopped working. All navigation keys are working properly, as well display is working. 2 weeks ago I used my phone in rain for calls but I immediately wiped it off. I have already tried wiping data which didn't help . what should I do now?

Sounds like a hardware failure. Unless your S7 has for some reason lost its waterproofing and water got in the phone, you should take it back to your telco, although it's gonna cost a bit of coin to get the screen replaced if you've voided the warranty.

theprophet93 said:
Sounds like a hardware failure. Unless your S7 has for some reason lost its waterproofing and water got in the phone, you should take it back to your telco, although it's gonna cost a bit of coin to get the screen replaced if you've voided the warranty.
Click to expand...
Click to collapse
It's out of warranty, is it possible to replace only touchscreen as display is working fine?

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HTC Fuze, Black/Blank Screen. Everything Else works, just can't see it.

Firstly, my screen does not show visuals. I can still touch the screen and make things happen, but it is just a back-lighted black screen. I have answered calls on it and such. Basically I'm returning it and getting a new one.
Since I am getting a new one, I want to see if anyone ever heard of this problem and to see what the cause of it is, for prevention purposes.
I didn't get it wet (the white sticker in the back is still white.) Though I have flashed PROven ROM to it a couple months ago (it's a great ROM by the way), but could that have messed up my screen?
I also wanted to know since I can't see the screen, would I have to, for warranty purposes, (blindly) reflash to the Stock ROM?
Thanks in advance!
Yeah, you probably oughta return it to stock configuration (good luck on that!). If you're really lucky, that might even fix the problem. Have you done a hard reset yet? Might be worth a try, although it certainly sounds like a hardware problem.
Sounds like the flex cable has gone bad
Exactly same thing happened to me this Tuesday. Luckly I backed up info to memory card using PimBackupV2.8 with remote control software on my PC. With the remote contol tool, I could see everything as if on my phone and icons are clickable.
Hard reset did not fix the issue. I then flashed the shipped official ROM and stock SPL for warranty purpose. Will send the phone to them today for repair.
mine also like that..
from vodafone also..
the things that make me panics is the phone become hotter and hotter.
asdiqa said:
mine also like that..
from vodafone also..
the things that make me panics is the phone become hotter and hotter.
Click to expand...
Click to collapse
Summer is coming...
Sometimes they make updating phones too easy......
The back of my phone often gets hot I have to use the edges to hold it even though it was not a hot day and it is in my pocket.
blank screen
ya so my screen is blank white
but everything else works
i've heard something about this being a faulty "flex cable"
how can i fix this?
thanks so much for your help
how do i fix this???
did you eventually find out how to fix this/???
u ever end up fixing that? how?
thankss
Mine was still in warranty so I rang Vodafone. They sent me a special delivery envelop the following day. I sent it back to them. The following day I got a text message from them saying they got it and was working on it to fix the fault. The next day received another message saying the device was on the way back to me and I should receive it the following day.
Actually they sent me back a replacement
So.. basically.. is this a faulty flex thing?
I had the same problem for the last week until today i was about to buy another one since i dont have any warranty for this one.. I searched google and saw somebody say that just putting a business card between the keyboard and the lcd and then slide it and it works so far
hope it helps everybody
Ack! my Fuze, which I got off eBay a few months back, just went black too.
I'm not exactly sure whether it's the LCD or the flex cable, but the fact that the D-pad backlight also has become intermittent makes me think it's the cable.
So has anyone attempted the flex cable repair themselves? I see you can buy the cable for around $40 and the LCD for around $80 from Hong Kong.
Maybe this is a sign I should just get an Android device.
eelpout said:
Ack! my Fuze, which I got off eBay a few months back, just went black too.
I'm not exactly sure whether it's the LCD or the flex cable, but the fact that the D-pad backlight also has become intermittent makes me think it's the cable.
So has anyone attempted the flex cable repair themselves? I see you can buy the cable for around $40 and the LCD for around $80 from Hong Kong.
Maybe this is a sign I should just get an Android device.
Click to expand...
Click to collapse
Did you end up fixing it? I have the same problem.
same thing happened to me Twice.... in my sleep overnight. I LOOOOOOOOVe my raphael but man this was the last straw
This maybe of some help for those of you with blank screens. I bought a Touch Pro on ebay that had a very dark screen, occasionally you could just make out some icons being displayed. Using Mymobiler showed that the basic system was working, as was the touchscreen. Other symptoms were that the camera would not work and the keypad lighting was intermittent. Sometimes on connection to Mymobiler a dialog box would come up saying there was an error with Microp?!?
Despite cleaning all internal connections and ensuring they were correctly and securely made the problem remained. I then noticed that the small camera used for video calls (in a socket on the main flex cable) looked very dirty and corroded. I removed the camera module and, using a fibreglass brush, cleaned the contacts on both the socket and the camera module. These were very badly corroded with verdigris.
On putting everything back together I was most surprised to find the screen was now working, as was the main camera. Unfortunately the ROM that is loaded doesn't seem to have any facility for checking the front video camera. There are still problems with sound - both the loudspeaker and the headphones seem to be dead and I have not had the opportunity to test GPS, Wifi, bluetooth, buttons, etc, however I will keep working on it.
Hope this is of help to someone.

Warranty questions....

Hey everyone,
I recently got a Xperia SP for 25k. Wi-Fi drops occasionally, and the back sometimes doesn't fit on properly. So I was thinking of getting it replaced because I kind of became obsessed about it Now my question is, it has quite a few scratches on the corners, but it still works perfectly fine and there's nothing on the screen. Will they still accept it, and what exactly is the process for getting it replaced under warranty?
EDIT:
------
I forgot the most important thing, screen never works properly when it's charging. That's an extremely annoying issue and the main reason I want to get it replaced.

Note 3 touch screen doesn't touch where my finger is touching.

So today I just started having this issue out of the blue. Sometimes the touchscreen and the capacitive buttons stop responding and most times when I touch a part of the screen it shows me as touching another part of it.
If I lock the phone then unlock with the power button, it'll be fine for a bit then happen again.
Is this issue known and is there a fix for it?
uf21 said:
So today I just started having this issue out of the blue. Sometimes the touchscreen and the capacitive buttons stop responding and most times when I touch a part of the screen it shows me as touching another part of it.
If I lock the phone then unlock with the power button, it'll be fine for a bit then happen again.
Is this issue known and is there a fix for it?
Click to expand...
Click to collapse
Have you flash a Custom ROM?
May be the custom ROM is nit compatible with your phone
May be your touch panel is damaged. Go to the service centre and repair your touch panel
Seems A Perfect Example of Water Damaged Phone.. i actually damaged my phone with water few months back..
if you think it might be.. best way to remove water before giving it to repair is just remove the batter(if possible) and put it into an airtight bag ful of rice
Sushant Rohan said:
Have you flash a Custom ROM?
May be the custom ROM is nit compatible with your phone
May be your touch panel is damaged. Go to the service centre and repair your touch panel
Click to expand...
Click to collapse
I have flashed a custom rom. Omega rom though it was a few months ago. I never dropped it or had water spilled on it. It just happened out of the blue.
The thing is if I lock and unlock the phone it'll work for a bit then the ghost touching will happen.
uf21 said:
I have flashed a custom rom. Omega rom though it was a few months ago. I never dropped it or had water spilled on it. It just happened out of the blue.
The thing is if I lock and unlock the phone it'll work for a bit then the ghost touching will happen.
Click to expand...
Click to collapse
I think that the touch panel is damaged. Go to the service center and repair your phone

[OPO] Touchscreen issue after foam party

Hello,
So maybe you already laughed a little bit by reading the title of the thread.
I had a foam party yesterday and I was stupid enough to have my oneplus one in my pocket. After about 15 minutes I finally realized that it would be a good idea to put my phone away. When I came back home in the night everything was fine but when I woke up today the touchscreen wasn't responding (only physical buttons worked). So I tried to hard reboot the phone and then everything was working again.
But after some minutes of use, I noticed that a part of the screen was reacting strangely. I went in the setting to activate the "cursor route" and I saw that there is kind of a band in the middle of the screen (about 1 cm) where the tactile is not working.
I removed the back cover and noticed that is was a little bit wet inside .. so I put my phone into some rice.
I tried to see how the screen is responding in my recovery (twrp) and the problem is also there, so I'm pretty sure it's an hardware problem.
Do you have any tips or things I can try to do ? I just want to avoid the Oneplus RMA because I don't want to be without phone for 2 months ..
Thanks in advance !
PS : I'm running CM 11S (latest OTA) and I'm rooted.
Stop using the device at all, you're potentially doing more damage every time you use it while it's wet/damp. Leave it in rice for three days without touching it. After three days is up take it out and inspect the touchscreen again.
okey, so I leave it off in the rice. 3 days without phone will be hard
If I have to replace the tactile screen (without LCD), do you know if I have to use thermal tools ?
pocj30 said:
Hello,
So maybe you already laughed a little bit by reading the title of the thread.
I had a foam party yesterday and I was stupid enough to have my oneplus one in my pocket. After about 15 minutes I finally realized that it would be a good idea to put my phone away. When I came back home in the night everything was fine but when I woke up today the touchscreen wasn't responding (only physical buttons worked). So I tried to hard reboot the phone and then everything was working again.
But after some minutes of use, I noticed that a part of the screen was reacting strangely. I went in the setting to activate the "cursor route" and I saw that there is kind of a band in the middle of the screen (about 1 cm) where the tactile is not working.
I removed the back cover and noticed that is was a little bit wet inside .. so I put my phone into some rice.
I tried to see how the screen is responding in my recovery (twrp) and the problem is also there, so I'm pretty sure it's an hardware problem.
Do you have any tips or things I can try to do ? I just want to avoid the Oneplus RMA because I don't want to be without phone for 2 months ..
Thanks in advance !
PS : I'm running CM 11S (latest OTA) and I'm rooted.
Click to expand...
Click to collapse
Lol, so it's a hardware problem that you soaked your phone ? Sounds more like a user problem.... Good luck trying to pass that on a RMA...Well good luck with trying to get a RMA period... lol
pocj30 said:
okey, so I leave it off in the rice. 3 days without phone will be hard
If I have to replace the tactile screen (without LCD), do you know if I have to use thermal tools ?
Click to expand...
Click to collapse
It'll be much longer without your phone if you don't though. And what @Cholerabob is right, what you've done to your phone isn't covered by warranty, warranty doesn't include damage caused by the owner.
Transmitted via Bacon
Cholerabob said:
Lol, so it's a hardware problem that you soaked your phone ? Sounds more like a user problem.... Good luck trying to pass that on a RMA...Well good luck with trying to get a RMA period... lol
Click to expand...
Click to collapse
If you read my post better, you will understand that I said I don't want to pass it on RMA. Of course I know that I will have to pay about 150e because it's my responsibility and it's not covered by any warranty. That's why I want to change the component myself.
And yes, it's an hardware problem because of a user mistake.
Try to make constructive answers next time at least.

S6 Pressing Back Button By It's self (Capacitive key)

I'm not sure how this is possible, but about once or twice a day, the back button on my S6 is pressed on it's own. It has happened when the device has been on the desk, I see the soft keys light up, the device vibrates like they've been touched and the app I was on went back, all while I was not even touching the device.
It's happened mostly when I'm holding the phone but not even close to touching the buttons, and once it happened and pressed the back button about 10 times in a row while I watched it.
The phone is completely undamaged, perfect condition, never touched water, not dirty at all, buttons are 100% clean. Happens while it's charging or on battery.
Has anyone else experienced this?
(My device was repaired by Samsung for a different issue, motherboard replaced, this only started happening after the repair)
i have, started like yours random. then it started happening more and more so when i was at the store waiting for someone i decided to factory reset ( factory reset twice while at the store) but it got worse. couldn't even get passed initial setup the phone just kept spamming back button so i just kept going back. luckily i already ordered a replacement s6 from tmobile since i was having some other issue with the phone. sadly the replacement s6 took over 7 days to get here. shipped through UPS and got to hawaii then for some reason UPS gave it to USPS for delivery. kinda sad that i ordered screen protectors 2 days after i ordered replacement phone and the screen protectors got here 4 days later through USPS. but other than that my NEW ( we all know its refurbished) galaxy s6 so far has no issues. even the no audio on calls is fixed.
also if you are going to order a replacement, be sure to let them know you have a GALAXY S6 and the date it was released. i say this because the 2 tmobile reps i talked to kept asking questions they say it was for them to determine if my galaxy s6 that was what 2 almost 3 months old at the time was still under warranty
My s6 was showing the same issue with the stuck back button.
It started randomly but than it went crazy and stuck. I wasn't even able to use it.
But 1 factory reset fixed it.
But yesterday the random stuck back button started again when the phone was on my desk and it was really hot (weather was hot as well as the phone). I turned it off for a while and apparently the issue stopped.
I'm not sure it's temperature, firmware, whatever related but I really don't want to factory reset it again.
No solution here, but it is happening to me as well
Solved
Hi i had the same problem aswell , i bought samsung s6 in Pakistan, after the update the back button kept pressing ghostly, i went to local samsung repair shop and the assistant reset something from the setting and then it was fine, i even asked him what you did and how you did? but he said it is secret lol very stupid. i could have post the solution if i know it, but i think it is very easy and something to do with setting. i am sure it is not hard/soft reset. i will post this on other forums to help other people.
thanks
having this problem with my phone too, i cant even get it to stay on the settings screen long enough to back up my stuff
edit: well i think i solved it. i tried clearing the cache, didnt work. then i did a hard reset, didnt work. then i went back and cleared the cache and did a hard reset at the same time and it seems to have worked.
+1 same problem. It happens mainly when the phone is on the move. Funny thing it happened 3-4 times while taking the metro (go figure) with the data on. Usually when I turn off the data, it reduces the amount of back press.
Normal reset doesn't solve the problem. It stops after a while, probably when the phone cools down. I can't seem to reproduce it, but I believe it has something to do with the data on.
I don't really want to factory reset so I'm going to write to samsung directly as the phone is brand new.
i am having same issue too.
---------- Post added at 09:20 PM ---------- Previous post was at 09:16 PM ----------
Did anyone try loading a custom rom and got it fixed ?
I've had that issue with my first one. Took it back ASAP as it was DOA. Got a brand new one 3 days later as they didn't have any in stock. This one doesn't have any problems. Don't worry to mutch about it. Get it exchanged.
It is a hardware defect: When the phone turns up power to the radio to strengthen the connection, it can cause Electronic Noise to leak over the connection into the capacitive buttons (due to poorly insulated shielding tape), causing the phone to think the buttons were pressed. That's why you notice the problem more when roaming -- the device needs to be repaired/replaced.
I have the exact same problem...did anyone contact the manufacturer and got a response on the matter?
I believe it may be an app setting messing with the system settings. My device did it once and wouldnt allow me to use my device. After factory reset it made it worse so i used twrp and wiped everything but my modem and flashed my stock firmware and it stopped and hasnt done it since
Sent from my SM-G925P using Tapatalk
faiding said:
It is a hardware defect: When the phone turns up power to the radio to strengthen the connection, it can cause Electronic Noise to leak over the connection into the capacitive buttons (due to poorly insulated shielding tape), causing the phone to think the buttons were pressed. That's why you notice the problem more when roaming -- the device needs to be repaired/replaced.
Click to expand...
Click to collapse
Hum that's interesting, thanks for your precious input on this.
I did contact Samsung who asked me to do a factory reset. It didn't change anything.
They redirected me to a Samsung office in Paris, not for repair but for a deeper factory reset... (not sure what they are talking about), but I haven't been there since due to lack of time.
However, I didn't experience the problem since the last update FXXU3QOKN so I'm keeping an eye on it.
Following "faiding's" comment, I'll probably pay them a visit for a replacement.
working "workaround"
workaround:
lower the speaker volume to ~75% in all settings (Media, ringtone, system, notifications, etc...)
Whats going on? why is it working?
some posts ago someone (user called "faiding") mentioned something about EMC leak, or at least he meant to, by mentioning a faulty insulation.
with that in mind i did some testing and found out that the closes radiating component it the speaker... and once you lower its emissions even thought the faulty insulation, the EMC leak is sufficiently low and the 'capacity short' is avoided.
Note: depending on how 'faulty' is your insulation (it varies from one phone to another depending on production line assembly) lower the volume until the issue stops accruing.
not full-proof but working
What worked for me is turn power saving on
possible fix
might be a coincidence, but this worked for me:
(I am a new user so i cant post a link but here is what you should do)
1. enter YOUTUBE
2. find this video: "Samsung Galaxy S6 Touch Screen Sensitivity Fix"
worked like magic for me
Repair tech
It is true that if your in the US and your phone has no damage or any water damage to void your warranty even if you bought it from someone else, u can register the phone at samsung website and then request a repair. It will still have a warranty.
But as I am a Cellphone tech, sometimes I rebuild phones. A s6 came into my shop and i once rebuilt it and worked for a while before doing the phantom touches on task and back keys. So when i pulled the screen up a little off the touch keys, it would stop. I gave up after a while trying to figure it out as i had more things to work on. Back in December i decided to rebuild it again, new screen, new battery, new frame and new back. Turned it into a gold s6 to try and sell it again. Sold it couple days ago, and it came back the next day doing the same thing. So got bored tonight and started to take it back apart. Figured i would try one more thing, replaced the charging port (which is also the soft touch keys) to see if that would resolve it. So far its not wigging out but im letting it sit here and try using it from time to time, with wifi on and a simcard installed. So far its not going crazy, but I will let everyone know if it fixes it or not. As for the "Youtube thing" I tried that, did not resolve. Im guessing its a defective soft touch keys/charging port.
I would not recommend this repair unless your phone is out or voided of warranty.
dslayer83 said:
It is true that if your in the US and your phone has no damage or any water damage to void your warranty even if you bought it from someone else, u can register the phone at samsung website and then request a repair. It will still have a warranty.
But as I am a Cellphone tech, sometimes I rebuild phones. A s6 came into my shop and i once rebuilt it and worked for a while before doing the phantom touches on task and back keys. So when i pulled the screen up a little off the touch keys, it would stop. I gave up after a while trying to figure it out as i had more things to work on. Back in December i decided to rebuild it again, new screen, new battery, new frame and new back. Turned it into a gold s6 to try and sell it again. Sold it couple days ago, and it came back the next day doing the same thing. So got bored tonight and started to take it back apart. Figured i would try one more thing, replaced the charging port (which is also the soft touch keys) to see if that would resolve it. So far its not wigging out but im letting it sit here and try using it from time to time, with wifi on and a simcard installed. So far its not going crazy, but I will let everyone know if it fixes it or not. As for the "Youtube thing" I tried that, did not resolve. Im guessing its a defective soft touch keys/charging port.
I would not recommend this repair unless your phone is out or voided of warranty.
Click to expand...
Click to collapse
Hi dslayer83,
I've the same problem with my S6
Could you solved the problem replacing the charging port?
It would be very important to me knowing how to repair the phone because I buyed it abroad. In my country Samsung does not cover warranty.
Up with this thread!
I had an S6 since January.. initially the problem was very random, maybe 1 or 2 times per day, sometimes would go crazy for a while
Then i had some time with no defect at all (a couple of weeks?) without doing nothing
This past week, the phone was feeling like the MENU button (what menu as in this phone there isn't any?) and that was very weird!
Today, it simply went completely crazy, and now is completely unusable... i can't actually swtich it off as the back key is pressed so quickly i don't have the chance of doing nothing!
EDIT: Managed to reboot and wipe cache... now it is useable, but still hits the button from time to time
Update... went unuseable again today.... factory resetting now...
If it works, shall we suspect is something software related?
Update: Not working... it started giving the phantom touches just after the factory reset then suddenly stopped
Worked fine for few hours, then started craza again
Now i have done a wipe and factory reset again, and still unuseable

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