My fingerprint scanner has stopped working, after I upgraded to Android 7 (Nougat).
I took it into my Samsung store who said it was a hardware issue, it failed the self diagnostic test.
However they refused to fix the issue under warranty because the screen is cracked.
The screen has been cracked for over 5 months now, so I hardly see how they are related.
Can anyone way in on this?
jjgriffsta said:
My fingerprint scanner has stopped working, after I upgraded to Android 7 (Nougat).
I took it into my Samsung store who said it was a hardware issue, it failed the self diagnostic test.
However they refused to fix the issue under warranty because the screen is cracked.
The screen has been cracked for over 5 months now, so I hardly see how they are related.
Can anyone way in on this?
Click to expand...
Click to collapse
Well if the screen is cracked, and your phone is still under warranty, then surely they should be fixing that too ? Samsung sound pretty useless to me, and use every excuse under the sun for not fixing things, try boot to recovery and factory reset, this can sometimes fix faults after an update.
EDIT: after updating mine to androind N, the fingerprint reader is working fine, infact so far ive got no problems here at all.
Yep a long as it is a UK model and under one year old Samsung should change the screen and fix the touch sensitive button. As long as you don't have a great big dent in the case that caused the cracked screen...... I just ordered new back cover for mine as it's a dual SIM and Samsung won't repair it under warranty. They quoted £65 to change the back cover and I purchased it on eBay for £20.
I will heat up the back cover and change it myself tomorrow.
Sent from my SM-G935F using Tapatalk
jjgriffsta said:
My fingerprint scanner has stopped working, after I upgraded to Android 7 (Nougat).
I took it into my Samsung store who said it was a hardware issue, it failed the self diagnostic test.
However they refused to fix the issue under warranty because the screen is cracked.
The screen has been cracked for over 5 months now, so I hardly see how they are related.
Can anyone way in on this?
Click to expand...
Click to collapse
Try to go back to MM.
Download latest MM version from sammobile.com and flash it with Odin
Then you will know if it's SW- or HW problem
angusc said:
Yep a long as it is a UK model and under one year old Samsung should change the screen and fix the touch sensitive button. As long as you don't have a great big dent in the case that caused the cracked screen...... I just ordered new back cover for mine as it's a dual SIM and Samsung won't repair it under warranty. They quoted £65 to change the back cover and I purchased it on eBay for £20.
I will heat up the back cover and change it myself tomorrow.
Sent from my SM-G935F using Tapatalk
Click to expand...
Click to collapse
Let them do it so you keep your device's water resistance.
s7 edge fingerprint sensor error
Wanted help regarding my s7 edge fingerprint sensor. It responds just fine sometimes but most of the time it gives an error. I tried the solution of clearing cache , pressing power and volume down button together to soft reset it. But nothing worked. The funny part is that it will respond for a few while after rebooting ( restarting ) it but when it gibes the error it stops completely until restarted again. Did not drop it. Didn't place it in water. The problem did start after updating from marshmallow to nuogat and even after getting two security patch updates. Don't know what to do. Can anyone plz guide me how to use *#0*# code to check fingerprint sensor because when i check it it sometimes give that intializing failed. Sometimes if i don't put my finger on the sensor it says it passed and when i place my finger it only shows first box passed while the rest of the boxes fail. I searched everywhere on internet for but in the end came back to xda and decided to ask u guys. As i did got alot of help from u guys on my s2 and note 4. I hope that someone might try to help.
I don't know the answer, but I can confirm a similar issue with my S7 since upgrading to nougat. Also I seen to get a few apps force closing. My device is stock and not rooted. I got so fed up with the finger scanner not responding I switched back to only a pin code for a week. Now I switched back to finger print and only set up one finger print memory........now for a week it send to be working, but still getting force closes of the play store app.
Sent from my SM-G935F using Tapatalk
My galaxy s7 edge sensor can't work requiring device restart. I have restarted many times and still it doesn't work. I hope that someone might help me to fix it
Firehun said:
My galaxy s7 edge sensor can't work requiring device restart. I have restarted many times and still it doesn't work. I hope that someone might help me to fix it
Click to expand...
Click to collapse
Try to reinstall the rom stock. If the problem persists, then it is a hardware problem. Your sensor went to the bag.
Related
Ok so basically I love the g2, but here is my problem, bare with me on this haha, BTW its completely stock n everything as its my 1st Android phone so didn't want to mess with it. So basically I broke my phone screen in January, bought new screen, followed a YouTube tutorial, replaced LCD+touchscreen, no issues super happy, had the odd issue where if I woke screen, would only be on for a second n then go back to sleep, but then upgraded to KitKat through computer software update, still nothing wrong, upgrade fixed the issue with the knock to wake, and then my worst day, smashed the screen again! On good Friday, ok I thought I'll just replace screen again, so I did, but when I put new screen on and tested it, all was well, until I made a phone call, the instant moment I press green call button, screen goes blank and won't come on no matter what, power button don't bring it back on or end the call, but I can hear the other person and they can hear me, had to turn phone completely n back on to be able to use it again, so I though hmmm dodgey screen, but just to be sure it wasn't the phone I put damaged screen back on, and the issue didn't appear, stayed lit up while in my hand, went off next to my ear, back on whole in hand, so I took it to local phone repair shop because I couldn't be bothered going through the hasstle getting refunds etc, they replaced screen, I went and tested it before paying them, guess what, same problem, so what exactly is going on? Has KitKat made the phone not work with a new screen other than the one I upgraded it with? I'm seriously confused and need some bodies help urgently my model is an unlocked lg g2 d802 16gb now I turned it on last week before I took it to be repaired, and it says I have software updates but I didn't bother installing them, is there a chance these could be related to my issue and possibly fix them? Its driving me nuts tbh
Chris
Hey Chris. It seems like your proximity sensor is messed up. I think the new screen you got yourself is worse quality or your damaged the proximity sensor when installing the screen.
Edit:
Please go into your phone app (where you call people) and type the following
3845#*802#
Then go into: HW Device Test and then ALC proximity test. Try testing your proximity sensor with your hand. It should change from far to near when your hand is about 2 inches from your phone. The proximity sensor is located next to the camera.
Sent from my LG-D802 using XDA Premium 4 mobile app
Ok thank you I will try that, I also thought a damaged sensor but when I put damaged screen back on after having the issue with my new screen it worked just fine, no blank screen when making a call, I retested it before I left it at phone repair shop, still was fine, then picked it up with a new screen and issue came back, I don't get why its been like this, I'm thinking bad quality screen and maybe try scratching the sensor area of the new screen to allow more light in? It may be to dark for it, what exactly do I do if it works fine when using that code, try another screen?
Chris
I doubt it will work when you use that method. It's just to make sure that it's the proximity sensor that's the problem and not some loose connection. And yes, a new screen would be your best bet.
Sent from my LG-D802 using XDA Premium 4 mobile app
Ok I won't try that method then lol, what if it doesn't work when I use that code, as I said I didn't have the issue with the damaged screen which I tested after having the issue with the replacement screen I'd purchased, so how do I know its not just the screen not allowing the sensor to see? Is there anyway I can reset the sensor to relearn maybe?
Chris
If you follow my steps, nothing bad will happen. It's just a way of troubleshooting the proximity sensor. I still think you should do it.
Sent from my LG-D802 using XDA Premium 4 mobile app
Ok I've spoken to phone repair shop and they agree it worth a try to see if its the screen or not, I'll let you know on Saturday after I've been and tested it
Chris
I just had this exact same issue.Turns out the inside of the screen was just dirty. I opened it up and took a q-tip to the inside of the screen and it worked perfectly after that. Also check the readings of the light sensor, as it is right next to the proximity sensor, if the screen is the problem it will likely have low readings as well.
Great I'm glad somebody else has encountered this issue, its been driving me nuts lol ok so I dial in the code that's been mentioned and what are the labels in the menu for the proximity and light sensors? I'm thinking its just a crap screen as the broken 1 worked fine after I put it back on after testing new screen, and I reckon the screen the repair shop has used is also ****e quality, but I just want to cancel it all out as I don't have the phone to hand to inspect as they still have it lol is there a picture somebody can post up to show what to not cover when replacing the screen and applying adhesive tape etc? Just so I can show them to make sure they have done it all properly.
Chris
Ok so just to update the problem, I went to the phone shop today, did the test, it was showing near all the time, but the light sensor reading was quite high, 166 or something, but I then tried squeezing the screen, index finger on back and thumb on front, gently squeezed it, and proximity sensor started showing far, and near as I moved my hand over it, but after few seconds, went back to showing near constantly, so I think its the screen not been seated, told the shop to take screen off, give it a good clean and reseat it. This sound good to you guys?
Chris
Anyone?
Bump! I'm only wanting a little extra advice so I don't end up paying more money out for another screen when it could possibly be proximity sensor? I think it was just the screen not seated properly, anybody have an idea or something else to either assure my choice or point me in another direction?
Chris
Out of nowhere the Volume UP button stopped working. I can't recall anything I did recently (no new software or drops) that could have triggered this. I tried restarting a few times, using smart manager to clean, safe mode, and they all didn't work. I couldn't wipe partition cache because I can't even get into that menu with the Volume up button not working.
Any other ideas?
Factory reset or try flashing ur stock rom ...if it still persists hardware issue
604al said:
Out of nowhere the Volume UP button stopped working. I can't recall anything I did recently (no new software or drops) that could have triggered this. I tried restarting a few times, using smart manager to clean, safe mode, and they all didn't work. I couldn't wipe partition cache because I can't even get into that menu with the Volume up button not working.
Any other ideas?
Click to expand...
Click to collapse
If something is not working on my phone, I'm going back to the shop where I bought it...
A factory reset didn't solve the issue. I ended up going to my nearby Samsung store for them to send it out for repair. They estimated 2 weeks and I had to give a $100 deposit to borrow a 5 year old android phone running android 4.2. To top it off, I heard the customer behind me start yelling and crying because they still had her phone after 1.5 months. This sucks.
Just to conclude this issue, Samsung returned my phone in 3 days! Very impressed with the service. They ended up replacing a part internally, removing my front and rear screen protectors in the process. There weren't any additional signs of wear or opening up the phone. I did ask about my waterproofing after this repair, and the store salesman said the "gore-tex" rubber is still intact and so is the warranty. I didn't bother with asking him to clarify the "gore-tex" part... it's been 3 days and it has been running as it should. I figure i'll test the waterproofing later.
604al said:
Just to conclude this issue, Samsung returned my phone in 3 days! Very impressed with the service. They ended up replacing a part internally, removing my front and rear screen protectors in the process. There weren't any additional signs of wear or opening up the phone. I did ask about my waterproofing after this repair, and the store salesman said the "gore-tex" rubber is still intact and so is the warranty. I didn't bother with asking him to clarify the "gore-tex" part... it's been 3 days and it has been running as it should. I figure i'll test the waterproofing later.
Click to expand...
Click to collapse
Please note, the phone is not waterproof, it is water resistant, that makes a huge difference, so if your phone gets water damage, it does not need to be covered by the warranty.
Hey y'all,
Picked up a SM-N935L a few weeks ago. Last week, for no reason I can think of, the touchscreen started causing problems.
As of now, a 1 inch swath of the screen on left side doesn't respond to touches unless they are long touches. This is annoying on the homescreen, but IMPOSSIBLE when trying to type on the keyboard as the number key, shift, A, Q, and 1 key barely ever respond to touch.
AT first it was intermittent. Now it's permanent.
The S-Pen works perfectly, even in the affected area of the screen.
I tried flashing the original firmware the phone came with before the OTA, no dice.
Long story short, the phone is now back in it's box and I am back to my old n9005 Note 3.
Has anyone else run into this?
Before someone says that maybe the screen connector is loose on the motherboard, I cracked the phone open (heatgun, etc) and checked that. Not the issue.
I even tried the secret code *#6233*# which allows you to "update" the touchscreen firmware. No difference.
Any thoughts?
you didn't mention the software version you're using.... did you update to the latest OTA for the L version of the Note FE? Google Translation change log
Build Number: N935LKLU3AQG6 Android version: Nougat (Android 7.0)Release date: 2017-08-04
ㆍ Improve the phenomenon that the tone of the song is reduced or silenced in a specific environment
ㆍ Correct the phenomenon that the photo position information is displayed when the camera is shot
ㆍ Intermittently break when touching the upper / lower touch
Build Number: N935KKKU3AQFEAndroid version: Nougat (Android 7.0)Release date: 2017-07-06
ㆍ Apply stabilization code related to camera operation
My bad for.not being specific. Yes I am on QG6. I went back to QFE hoping for a change. No difference.
ClrDaLane said:
Hey y'all,
Picked up a SM-N935L a few weeks ago. Last week, for no reason I can think of, the touchscreen started causing problems.
As of now, a 1 inch swath of the screen on left side doesn't respond to touches unless they are long touches. This is annoying on the homescreen, but IMPOSSIBLE when trying to type on the keyboard as the number key, shift, A, Q, and 1 key barely ever respond to touch.
AT first it was intermittent. Now it's permanent.
The S-Pen works perfectly, even in the affected area of the screen.
I tried flashing the original firmware the phone came with before the OTA, no dice.
Long story short, the phone is now back in it's box and I am back to my old n9005 Note 3.
Has anyone else run into this?
Before someone says that maybe the screen connector is loose on the motherboard, I cracked the phone open (heatgun, etc) and checked that. Not the issue.
I even tried the secret code *#6233*# which allows you to "update" the touchscreen firmware. No difference.
Any thoughts?
Click to expand...
Click to collapse
Try *#2663#, which will update the TS firmware. Used this recently to correct a touch screen reversal (which was a weird experience at first).
zamzenos said:
Try *#2663#, which will update the TS firmware. Used this recently to correct a touch screen reversal (which was a weird experience at first).
Click to expand...
Click to collapse
Sorry. That's the code I used, not 2633. It didn't help at all.
Have you installed any apps that control screen brightness, remove the brightness slider from quick settings? If yes, uninstall and see if that fixes the issue.
Very late to the party but I'm having the same issue. Tried everything and no luck. The left side of screen not responding unless I use the pen. Stock OS no extra apps installed. Gutted.
I also have this problem..after one month use..right side screen doesnt respon..
Im runing on ARA1 firmware
hi pro, did you fix it, i have same issue
I had the right edge screen problem too. You can use *#0*# to test. Select touch to start the test.
Press 'volume up' button once done.
My problem on the right side and only not responsive to touch only. S pen works fine though.
I went to samsung and they said they had replaced the screen. And it works ! So guys, maybe it's really a hardware problem with the display screen.
Now after 2 month, the problem had resurfaced
I really like this phone and my note 4 previously was great and not having any hard problem.
I'm going to send this again to samsung for repair since it's still under warranty. Hope the problem will diasppear and not repeating again once we warranty expires.
Hello, i am having the same problem. It started about a week ago when the left side of my phone became unresponsive to touch. I have to long press the left side of the screen to register my touch. I tried the "Touch" test at *#0*# and the left side cant be touched. Now the lower and right side of the screen became unresponsive too. Anyone knows how to fix? Using Android 8.0.0 on this Samsung Galaxy note FE
exactly happen to me too...
went to samsung center and replace the screen, under warranty
Same Here
Hi
the same issue started happening to my Note FE yesterday.
have you found a way to fix it? or have you returned the product?
BAD NEWS everyone
Hey y'all,
So I have bad news for you.
The problem is hardware not software. I ended up giving my dad the phone when he went on a business trip to Hong Kong. He's got a guy there that owes me a favor or two so he got the screen replaced. That fixed it immediately.
Sorry for not updating you guys. I ended up just picking up a brand new Note8 back in Nov when I had enough of the touchscreen thing. When my dad finally brought me the FE back with the new screen it worked perfectly.
No software changes at all. Just replaced the screen.
Hi !I am having the same problem here with the right side of the screen.
First it started when the right side started to be less sensitive but then after a while it suddenly stopped working for the touch. The S Pen works ok.
Its really terrible to use it like this. At least if there was an option to squeeze the screen. Where did you guys bought the phone? I am in Europe but i think the company imported it from Saudi Arabia. Dont know if its a regional issue but i am courious. I tried clearing the cache and updating the touch but no difference. Haven`t tried factory reset yet....
Radium82 said:
Hi !I am having the same problem here with the right side of the screen.
First it started when the right side started to be less sensitive but then after a while it suddenly stopped working for the touch. The S Pen works ok.
Its really terrible to use it like this. At least if there was an option to squeeze the screen. Where did you guys bought the phone? I am in Europe but i think the company imported it from Saudi Arabia. Dont know if its a regional issue but i am courious. I tried clearing the cache and updating the touch but no difference. Haven`t tried factory reset yet....
Click to expand...
Click to collapse
hi what is your update about your screen problem ? and for how long did you use your note fe before this problem appeared? maybe you dropped it or something?
Hi. I'm having the same issue. I'm in Saudi so maybe it's a region thing?
Right side not working with touch but only for the s-pen. Also now the s-pen or finger has wrong touches in the screen.
nesoor1230 said:
hi what is your update about your screen problem ? and for how long did you use your note fe before this problem appeared? maybe you dropped it or something?
Click to expand...
Click to collapse
I have been using it for about 3 months before it first started to lose its sensitivity and then to not function at all on a 1 cm wide area on the right side. I havent dropped it for this to be an issue and since i already seen other people complaining its definately a manufacturing issue. I have sent it to the service and hope to have an answer and i will update here about it.
---------- Post added at 06:47 PM ---------- Previous post was at 06:45 PM ----------
ahddie said:
Hi. I'm having the same issue. I'm in Saudi so maybe it's a region thing?
Right side not working with touch but only for the s-pen. Also now the s-pen or finger has wrong touches in the screen.
Click to expand...
Click to collapse
My phone is also imported from Saudi Arabia. It could be a problem with this region, i don`t know.
---------- Post added at 06:48 PM ---------- Previous post was at 06:47 PM ----------
ClrDaLane said:
Hey y'all,
So I have bad news for you.
The problem is hardware not software. I ended up giving my dad the phone when he went on a business trip to Hong Kong. He's got a guy there that owes me a favor or two so he got the screen replaced. That fixed it immediately.
Sorry for not updating you guys. I ended up just picking up a brand new Note8 back in Nov when I had enough of the touchscreen thing. When my dad finally brought me the FE back with the new screen it worked perfectly.
No software changes at all. Just replaced the screen.
Click to expand...
Click to collapse
Hello, do you know if your phone was imported from Saudi Arabia? It might be a problem with the phones for this market.
Thanks all for your reply. Really its very scary, just brought a new one from Saudi Arabia, where made in Vietnam. Sometimes I feel some lag with back button . But I dont think its common defect, I heard about same problem in Note 8. Those screen curves brought troubles to all of us ,
I installed tempered glass screen protector but it didn't cover the whole screen , anyway I preferred it rather than the normal elastic one.
Exactly the same issue on my FE
Nope. It happened to me as well just this morning. It is exactly as you've described. I did a factory reset but the issue still persists.
I recently purchase a LeEco Le Max 2 from aliexpress and it worked fine for the first 2 hours but after i locked it and left it on a table for a few hours and came back the fingerprint scanner wouldn't work.
After this happened to me i started to search the internet for all the possible solutions i could find like installing the original ROM and such but before i did any of the solutions it suddenly started to work again.
It started to work for like 2 seconds and then stopped again how it happened was that i had left it on my bed with the screen on and it was starting to get really hot (the room was also hot) and i started to get angry with the device and started taping the fingerprint scanner hard in the hopes of getting it to work and it started to work for like 2 secs and then stopped and since then i haven't been able to get it to work again and yes i have tried factory resetting and re calibration the scanner also i have tried installing multiple official and unofficial ROMs .
So anyway the reason for my post is to ask for possible solutions on how to fix it and also to ask what was the issue? is it the contacts or is it a defective part.
The FP problem in this phone is well documented. As are the many seemingly magical solutions folks have found for it. Search XDA and try what solutions you can find, and if those don't work, it may be the part. If it's the part, the good news is that a new FP scanner is exceedingly cheap ($6 CAD), as are most of the tools one would need to do the repair, if they do not already have them.
I posted a guide in this section here for doing the hardware replacement. No guarantees - nobody seems to know definitively what the cause of this issue is or how to fix it, but the only thing that's obvious is it's a fairly rampant problem.
it is a software issue no remplacement needed , i have post a solution 100% working
darkside57 said:
it is a software issue no remplacement needed , i have post a solution 100% working
Click to expand...
Click to collapse
Everyone who has found a "fix" to this problem has claimed that, and it's usually not even a week before someone comes by and proves they were wrong. Certainly worth trying the solution regardless, but you shouldn't make promises that aren't validated.
Heyyo, too true @TheLastCanadian (happy Canada day btw eh?) that some may get lucky with a software fix but most require a hardware replacement to resolve the problem 100%. Your guide btw is very well detailed and as long as anyone follows it to the tee? They should be safe too.
I'm unsure how old your LeEco Le Max 2 is, but it might be cheaper to just replace the FP scanner yourself than to send it back to China for a replacement as they would probably request you to pay to ship both ways...
Thanks!
I think this is a quite late reply but first i would like to thank @TheLastCanadian for his/her comment. I already knew the thing about replacing the fp scanner which you can get on aliexpress for just under 6€
but the issue i have is that i don't have the tools to do it but even if i had them and even though it seems really easy to do as shown in multiple guides i have really shaky hands and wouldn't trust myself to do it in the
fear that i would just snap the phone in half.
Also another question recently my bottom buttons stopped working on my phone and even after factory resetting they still wouldn't work (read online that it might be a software problem)
after that i thought that maybe it was the heat wave hitting my country that caused the buttons to break/stop working but still i wanted try one more time so i cooled the phone in front of
a fan for a half hour and then tried installing the original OS (the OS that i was using was the PixelExperience for LEECO MAX 2) and then it suddenly started working. So the point of this was
to ask was it a problem with that OS or was it the heat by the way even when the buttons didn't work their light was still on.
Heyyo, for the hardware buttons? It is usually a software issue yes unless the phone was dropped and screen is cracked on the bottom half of the screen (I had that happen and the replacement screen came with new hardware buttons and they worked perfectly).
For FP reader? I guess if you're uncomfortable with doing it you could ask a local mobile phone repair shop to fix it... But they might charge you quite a bit so I'd ask for a quote and link TheLastCanadian's guide so they have an idea on what they need to do.
It's honestly not too bad repairing a Le Max 2. For me, heating up the phone enough and separating the screen was the toughest part as that adhesive tape they use is REALLY adhesive and the phone was quite hot to the touch to finally get it to separate with my suction cup.
In the guide that TheLastCanadian posted he linked a very cost effective kit that is even more fancier than the random parts I had heh so I'd recommend his linked toolkit if you want to give it a go.
Hey i know it been quite while but wanted to leave an update about the fingerprint scanner issue so here it is.
I usually wipe and reflash my phone with a cfw every few months but decided to do it now even though i already did it a few weeks ago because i downloaded and ran some infected ****.
Well guess happened?? IT WORKS NOW!! the fingerprint scanner suddenly started to work again as i was setting it up. I don't think it the cfw because i'w installed it multiple times before
and the fingerprint scanner never worked but now it does, maybe its because of its hot in my room? ¯\_(ツ)_/¯
I think its really likely to do with heat or something because the last time i got it to work for a few sec was when i first got it was after i had played some games and watched some vids in my room
which got it burning hot. Will update if it stops working again
The cfw that got it to work was the newest version of PixelExperience for LEECO MAX 2
https://forum.xda-developers.com/le-max-2/development/rom-pixel-experience-t3734990
I have bought a dead pixel LCD from aliexpress. and I install it very well without any hassle. everything is working well but the fingerprint scanner is not working it shows a message "fingerprint operation canceled" now what should I do?
for your kind information, I have reset my phone several times and updated the latest version.
I added a picture and a video.
Help me please if anyone of you faces this problem.
Thank you
Return it to aliexpress and buy one that you know works?
ldeveraux said:
Return it to aliexpress and buy one that you know works?
Click to expand...
Click to collapse
i have tried to return but the seller didn't respond to my messages.
May be that fingerprint needs official Samsung Amoled display.. but try this before: if you have warranty go to samsung repair store, tell to them the fingerprint's problem and they (with a software) will fix the problem.. It happened to me when 2 years ago they changed the PCB to my A50, after that fingerprint didn't work anymore they fixed this like that.
InfamousMykol said:
May be that fingerprint needs official Samsung Amoled display.. but try this before: if you have warranty go to samsung repair store, tell to them the fingerprint's problem and they (with a software) will fix the problem.. It happened to me when 2 years ago they changed the PCB to my A50, after that fingerprint didn't work anymore they fixed this like that.
Click to expand...
Click to collapse
thanks brother.
ariful420bd said:
thanks brother.
Click to expand...
Click to collapse
NP. I think that, if you changed display not in an Samsung official repair store, they won't consider your request, but I hope that they will help you.
You can get replacement screens that have a fingerprint scanner in them and some that don't. It's a fused in part, so if the screen was made without it (usually cheaper) the phone won't have that feature anymore. You will need to replace the screen to get the function back.