09-06-2016 07:49 PM
404 ... 45678 ...
tools
  1. Hesham Fouad's Avatar
    lumia-final.jpg

    as you can see from the photo the digitzer contacts marked with a red spot located just behind the lcd screen once main board mounted, it get in contact with the digitizer terminal what really happen in lumia 1520 with a big 6 inch screen is the screen slightly bend when you put it on your pocket or even use some force to clean it, and this mess with the digitizer contacts alignment causing a swipe, tap problem to appear
    a short way to fix this look in the second photo hold the phone like this and push down from the red marked areas softly several time as it make a good contact with the digitizer terminal the problem will disappear
    after all this is a faulty design specailly with a large screen, nokia know that yes they do but they just dont want to replace or fix it, cause its costly a design problem ,i tried to explain this in Nokia forum , they dont want us to understand its a hardware fault and treat us like a money bags for their faulty design ,can you imagine how happy they are when they read our messages that with lumia cyan update some wrote we feel it become better !! nothing really change its just we have a blind trust at nokia devices ,the question is what are going to do time to let them pay a high price as we did
    08-05-2014 02:24 PM
  2. JeffeMaximus's Avatar
    Dude, if my screen starts to wig out this works every time. Just squeeze a little in the middle of the phone and bam, stops the phantom touches / scrolling right away.

    Wonder if there is anyway to effectively clean this so it stops. I would then assume that another phone over time will probably come down with the same.

    Thanks for posting!
    08-07-2014 06:43 PM
  3. Formula84's Avatar
    Dude, if my screen starts to wig out this works every time. Just squeeze a little in the middle of the phone and bam, stops the phantom touches / scrolling right away.

    Wonder if there is anyway to effectively clean this so it stops. I would then assume that another phone over time will probably come down with the same.

    Thanks for posting!
    Same here, actually iI always put my phone in my front pocket, screen facing my leg.

    Since reading this I switched to the camera facing my leg and have had far less issues. My guess is the curve of my thigh outs a slight pressure and flexes the phone while in my pocket.

    Definitely a build design flaw, thanks so much to the user that posted those pics with the info, this was driving me nuts. This should get front page so it can be exposed. I also was noticing my keyboard input and pass code would sometimes lag, now its gone as well.
    08-08-2014 05:44 AM
  4. AvatarEW's Avatar
    Click image for larger version. 

Name:	lumia final.jpg 
Views:	742 
Size:	50.2 KB 
ID:	75330

    as you can see from the photo the digitzer contacts marked with a red spot located just behind the lcd screen once main board mounted, it get in contact with the digitizer terminal what really happen in lumia 1520 with a big 6 inch screen is the screen slightly bend when you put it on your pocket or even use some force to clean it, and this mess with the digitizer contacts alignment causing a swipe, tap problem to appear
    a short way to fix this look in the second photo hold the phone like this and push down from the red marked areas softly several time as it make a good contact with the digitizer terminal the problem will disappear
    after all this is a faulty design specailly with a large screen, nokia know that yes they do but they just dont want to replace or fix it, cause its costly a design problem ,i tried to explain this in Nokia forum , they dont want us to understand its a hardware fault and treat us like a money bags for their faulty design ,can you imagine how happy they are when they read our messages that with lumia cyan update some wrote we feel it become better !! nothing really change its just we have a blind trust at nokia devices ,the question is what are going to do time to let them pay a high price as we did
    Thanks for the visual confirmation of my suspicions.

    I've worked with many displays in the past and immediately knew the screen issues were not a software issue.

    Folks, this is not a correctible software issue. This is a design flaw. This MAY be corrected in a revision (1530?) But all 1520 users will live with this issue and have to use the provided temporary workaround.

    This is considered a non-essential issue since it degrades user experience but does not make the phone non-operational.

    Microsoft/Nokia will not issue a recall and have all 1520 users send in their phones (too expensive.) That action would be the only way to resolve this issue.

    As a 1520.3 user, I'm stuck for the next two years with this issue. My next phone will not be a Nokia, too many issues with my 920 and 1520 (1020 has functioned well.)
    madusmacus and IEhrgeizI like this.
    08-08-2014 06:08 AM
  5. Nimdock's Avatar
    Haha, I also switched to putting my phone in my pocket screen facing out.

    Up until now I always did it screen facing in to give it a bit of extra protection.
    IEhrgeizI likes this.
    08-08-2014 07:11 AM
  6. Formula84's Avatar
    Haha, I also switched to putting my phone in my pocket screen facing out.

    Up until now I always did it screen facing in to give it a bit of extra protection.
    Let me know how it works out for you, I was doing well until work today, lots of walking in my pocket and the craziness is happening more frequently again. But the squeezing flexing of hardware does temp fix it...its still rather annoying...

    Btw I am not talking about scrolls as taps, I'm talking about the ghost screen activity like auto unlocking scrolling around in apps. This only started for me when doing a recovery to 8.0 to get the official cyan... Before I used to get scrolls as taps all the time but after the roll back - upgrade to cyan - hard reset - restore data, it has been doing the ghost 👻 tapping / scrolling on its own when woken from sleep.

    Interestingly this only happens for me when double tap to wake is on, which is a shame because I love that feature. So for now ill live without it and see how my scroll registers as tap behaves with it off and now being more conscious of the real cause of the scroll as tap issue.
    08-08-2014 08:56 AM
  7. shreadow's Avatar
    Click image for larger version. 

Name:	lumia final.jpg 
Views:	742 
Size:	50.2 KB 
ID:	75330

    as you can see from the photo the digitzer contacts marked with a red spot located just behind the lcd screen once main board mounted, it get in contact with the digitizer terminal what really happen in lumia 1520 with a big 6 inch screen is the screen slightly bend when you put it on your pocket or even use some force to clean it, and this mess with the digitizer contacts alignment causing a swipe, tap problem to appear
    a short way to fix this look in the second photo hold the phone like this and push down from the red marked areas softly several time as it make a good contact with the digitizer terminal the problem will disappear
    after all this is a faulty design specailly with a large screen, nokia know that yes they do but they just dont want to replace or fix it, cause its costly a design problem ,i tried to explain this in Nokia forum , they dont want us to understand its a hardware fault and treat us like a money bags for their faulty design ,can you imagine how happy they are when they read our messages that with lumia cyan update some wrote we feel it become better !! nothing really change its just we have a blind trust at nokia devices ,the question is what are going to do time to let them pay a high price as we did
    i didnt get to which side should i push or pull
    can u re explain?1
    08-08-2014 10:38 AM
  8. species8472xgn's Avatar
    This is something that Microsoft should address. The reason for placing phone display down in pocket is to protect the phone in case something hits your pocket. The most logical place to keep a phone this size is in the pocket. Hip cases are few and far between in addition to not being practical. I have given up on cases for two reasons.

    One is the bulk and weight added.

    Two, didn't buy a red 1520 to keep it hidden. 😁
    IEhrgeizI likes this.
    08-08-2014 04:19 PM
  9. MDK22's Avatar
    Click image for larger version. 

Name:	lumia final.jpg 
Views:	742 
Size:	50.2 KB 
ID:	75330

    as you can see from the photo the digitzer contacts marked with a red spot located just behind the lcd screen once main board mounted, it get in contact with the digitizer terminal what really happen in lumia 1520 with a big 6 inch screen is the screen slightly bend when you put it on your pocket or even use some force to clean it, and this mess with the digitizer contacts alignment causing a swipe, tap problem to appear
    a short way to fix this look in the second photo hold the phone like this and push down from the red marked areas softly several time as it make a good contact with the digitizer terminal the problem will disappear
    after all this is a faulty design specailly with a large screen, nokia know that yes they do but they just dont want to replace or fix it, cause its costly a design problem ,i tried to explain this in Nokia forum , they dont want us to understand its a hardware fault and treat us like a money bags for their faulty design ,can you imagine how happy they are when they read our messages that with lumia cyan update some wrote we feel it become better !! nothing really change its just we have a blind trust at nokia devices ,the question is what are going to do time to let them pay a high price as we did
    After squeezing top & bottom (as indicated in photo), it seems to have cleared it up. That being said, I rarely carry the phone in tight pants pockets (which might affect curve), though over time (since early February) I could've caused some flexing of the screen.
    Good catch to Hesham

    ... simply hold the phone (screen facing up) by top & bottom (by Nokia (top)& above micro usb) & squeeze (exert slight pressure there) - try it, seems to work ...
    Hesham Fouad likes this.
    08-08-2014 04:27 PM
  10. slysy's Avatar
    08-08-2014 05:40 PM
  11. IEhrgeizI's Avatar
    This seems to make my 1520 much better but the fact is it's a hardware fault and Nokia should replace it. It was annoying me so much that I bought a 930 which has the same hardware but no issues for me whatsoever. I would have had no reason to leave 1520 otherwise.
    08-08-2014 06:03 PM
  12. MrGoodSmith's Avatar
    i didnt get to which side should i push or pull
    can u re explain?1
    Agree. The fix is not explained well and the photos are not clear. He says "look in the second photo hold the phone like this ". The second photo shows a disassembled phone! Do I have to disassemble the phone myself to fix it?

    Can someone please explain what needs to be done and how not to put the phone in the pocket?
    08-08-2014 06:13 PM
  13. mrZoSo's Avatar
    Personally, I think it's a combination of software and hardware. I've experienced the issue but not to the extent of some others, and I always carry it in my front pocket, screen facing my leg.
    The reason I also think it's software related too,,, when I first got the phone was when I experienced the issue the most. Once I updated it to the 8.1 preview it happened much less frequently. Then the Cyan update came out and I had to drop back to the original OS, issue went back to happening more frequently again. Updated to Cyan, and it's much less again, even less than the 8.1 preview.
    I have a 1520.3 and I always do a hard reset when updating or downgrading the OS. Always start fresh, and never used a backup to restore.
    08-08-2014 06:34 PM
  14. Formula84's Avatar
    Agree. The fix is not explained well and the photos are not clear. He says "look in the second photo hold the phone like this ". The second photo shows a disassembled phone! Do I have to disassemble the phone myself to fix it?

    Can someone please explain what needs to be done and how not to put the phone in the pocket?
    Hold the phone like for taking a photo, index finger and thumb on the top(left hand)(Nokia logo) and on the bottom(right hand)(capacitive buttons)...

    but squeeze firmly as if there where buttons where your fingers are, this should do it I even put a small twist on it till I saw the LCD flex a bit, this cleared it up... But everyone is different, and may only be temporary. In my case I still ended up disabling double tap to wake as while this worked it was still annoying to do all the time, I am now convinced its hardware that I intensified by software, as turning off the double tap wake setting fixes my random ghost tapping on wake issue...
    JJanner and danjah like this.
    08-08-2014 06:41 PM
  15. Iceborgi's Avatar
    I had similar problem with my Lumia 1520. It was experiencing ghost touches and started bing search/other random programs randomly. At same time touch screen stopped working and started to work again after I pushed power button twice so screen switched off and on again. There was also brighter white backlight dot at middle of the screen.

    First I thought it might be a software problem but it didnt ease after cyan and wp8.1 updates so I decided to service my phone and they replaced screen module and said it was as problem inside of the screen module what was causing all this mess. I was able to start those ghost touches to appear when I twisted my phone a little bit indicating a hardware fault.

    So at least in Finland you can get your screen module replaced in warranty if there is same kind of problems. Also scroll/tap issue was fixed with a new screen.
    PeterByrne likes this.
    08-09-2014 05:55 AM
  16. Rawliglat x's Avatar
    Glad to see this information hitting some news site.

    Nokia Lumia 1520 Having Tap and Scroll Bug Issue: Fix Available For This

    And they gave you credits @Hesham Fouad

    Good Job!
    08-09-2014 07:35 AM
  17. GK Wong's Avatar
    Click image for larger version. 

Name:	lumia final.jpg 
Views:	742 
Size:	50.2 KB 
ID:	75330

    as you can see from the photo the digitzer contacts marked with a red spot located just behind the lcd screen once main board mounted, it get in contact with the digitizer terminal what really happen in lumia 1520 with a big 6 inch screen is the screen slightly bend when you put it on your pocket or even use some force to clean it, and this mess with the digitizer contacts alignment causing a swipe, tap problem to appear
    a short way to fix this look in the second photo hold the phone like this and push down from the red marked areas softly several time as it make a good contact with the digitizer terminal the problem will disappear
    after all this is a faulty design specailly with a large screen, nokia know that yes they do but they just dont want to replace or fix it, cause its costly a design problem ,i tried to explain this in Nokia forum , they dont want us to understand its a hardware fault and treat us like a money bags for their faulty design ,can you imagine how happy they are when they read our messages that with lumia cyan update some wrote we feel it become better !! nothing really change its just we have a blind trust at nokia devices ,the question is what are going to do time to let them pay a high price as we did
    Are you sure the illustration in your explanation applies to 1520? That is not even the engine board of 1520. Very obvious the SIM is on different location.
    This is the correct illustrations for 1520 engine board;
    lumia-1520-engineboard.jpg
    bottom.jpg
    top.jpg
    Notice there are no contact point from the engine board for the digitizer. Probably the digitizer connector is already paired with the LCD flex cable to the board.
    JJanner likes this.
    08-09-2014 09:33 AM
  18. Formula84's Avatar
    Are you sure the illustration in your explanation applies to 1520? That is not even the engine board of 1520. Very obvious the SIM is on different location.
    This is the correct illustrations for 1520 engine board;
    Click image for larger version. 

Name:	Lumia-1520-EngineBoard.jpg 
Views:	44 
Size:	88.5 KB 
ID:	75977
    Click image for larger version. 

Name:	bottom.JPG 
Views:	47 
Size:	64.1 KB 
ID:	75978
    Click image for larger version. 

Name:	top.JPG 
Views:	43 
Size:	53.6 KB 
ID:	75979
    Notice there are no contact point from the engine board for the digitizer. Probably the digitizer connector is already paired with the LCD flex cable to the board.
    Regardless of technical garble, this does work for some, who cares for exact details, for me just putting a slight twist on the chasse (back that seals around the screen glass) can either make this ghost tapping start or stop it at random.

    So its clear that something in the build design is causing it. I must stress that so.e have it way worse them others, where screen gets touches registered without even touching the screen, not just the scroll registers as tap issue...
    08-09-2014 03:19 PM
  19. flapadlr's Avatar
    Man, I appreciate work like the OP did. But I am naturally skeptical. This, as others have stated, can suffer from the placebo effect.

    I have been using my phone for 4 hours after pressing the edges and I have not had a false swipe. I actually felt that there as a zone of the screen that was worse with the false clicks than others and it doesn't happen there anymore either.
    Thanks, OP!!
    08-09-2014 03:22 PM
  20. Marcelo F's Avatar
    Has anyone had this issue on another model because i have a year old 920 with this exact symptom?
    08-09-2014 09:59 PM
  21. GK Wong's Avatar
    If your screen register touches without even touching on it or auto press the Search key, then this are completely different issue than the famous touch-swipe issue of 1520. My bro 1520 got this issue, sometimes the screen scrolling is like vibrating itself, we sent to Nokia Care and the replaced the LCD altogether with the digitizer. And guess what? The touch-swipe issue is still there!
    08-09-2014 10:27 PM
  22. EHJ851's Avatar
    I also have the phantom taps and clicks~ 1520( L1520 UK O2, WP8.1 DP update1-cyan fw). THEY ALWAYS COME BACK NO MATTER WHAT.
    GK WONG's post makes more sense in looking for an explanation. Twisting the chassis based on a L520 blurry photo could not, probably, align something that isn't there.
    My personal (educated) guess would be that somehow there is static electricity(rubbing the plastic against a fabric,eg pocket) building up between the glass screen and the plastic back...resulting in either false discharge or interfering with screen's capacitive field. Have you noticed the rubber gasket all around the glass screen? it could be acting like the insulator in a capacitor, thus the whole phone gets "charged" with static electricity that slowly (our body is not a low-resistance conductor) adds capacitive discharge when we touch the glass and interferes with swipe registering, hence the issue. Disturbances in electric field is what is used in capacitive touch principles.
    Part 1, the L1520 has huge glass/plastic surfaces when compared to 920(I don't have one so I could only assume(based on design) that the 920 uses the same rubber gasket around the screen). Phantom touches/swipe occurs also for 920,but the severity/occurrence is less because of the smaller size. It takes a minimum amount of static charge in order to influence the capacitive screen, maybe the 1520 reaches that amount faster and more often because of the sheer size.
    Part 2, our bodies always act like huge capacitors(clothing rubbing, wearing rubber sole shoes,etc). If there is an (design) fault in the grounding the screen to the polycarbonate body/mainboard there is also a source of issues even if the phone is not itself charged with static electricity.

    The positive feedback (from users twisting and/or pressing the phone) could be that there is a shielding contact that discharges that. It could be either that the contacts are faulty(misaligned springs) or not enough.
    I hope my post makes sense for those familiar with physics and principles of electricity.
    08-10-2014 01:56 AM
  23. tmiz's Avatar
    Has anyone experienced a 1520 WITHOUT screen issues? I'm about to unbox a 1520.3 purchased from B&H and after reading all this, thinking about sending back before even opening. Like most of you, I just need the phone to work and don't want to be flexing the screen, etc. Curious if this is an issue across the majority of 1520s or if there is a decent chance I will have a problem free screen.
    08-10-2014 09:21 AM
  24. coolbreeze78's Avatar
    Has anyone experienced a 1520 WITHOUT screen issues? I'm about to unbox a 1520.3 purchased from B&H and after reading all this, thinking about sending back before even opening. Like most of you, I just need the phone to work and don't want to be flexing the screen, etc. Curious if this is an issue across the majority of 1520s or if there is a decent chance I will have a problem free screen.
    They all have the issue. My brand new 1520.3 from newegg has it. I can't return it so I will just suffer through.
    08-10-2014 12:06 PM
  25. Formula84's Avatar
    I also have the phantom taps and clicks~ 1520( L1520 UK O2, WP8.1 DP update1-cyan fw). THEY ALWAYS COME BACK NO MATTER WHAT.
    GK WONG's post makes more sense in looking for an explanation. Twisting the chassis based on a L520 blurry photo could not, probably, align something that isn't there.
    My personal (educated) guess would be that somehow there is static electricity(rubbing the plastic against a fabric,eg pocket) building up between the glass screen and the plastic back...resulting in either false discharge or interfering with screen's capacitive field. Have you noticed the rubber gasket all around the glass screen? it could be acting like the insulator in a capacitor, thus the whole phone gets "charged" with static electricity that slowly (our body is not a low-resistance conductor) adds capacitive discharge when we touch the glass and interferes with swipe registering, hence the issue. Disturbances in electric field is what is used in capacitive touch principles.
    Part 1, the L1520 has huge glass/plastic surfaces when compared to 920(I don't have one so I could only assume(based on design) that the 920 uses the same rubber gasket around the screen). Phantom touches/swipe occurs also for 920,but the severity/occurrence is less because of the smaller size. It takes a minimum amount of static charge in order to influence the capacitive screen, maybe the 1520 reaches that amount faster and more often because of the sheer size.
    Part 2, our bodies always act like huge capacitors(clothing rubbing, wearing rubber sole shoes,etc). If there is an (design) fault in the grounding the screen to the polycarbonate body/mainboard there is also a source of issues even if the phone is not itself charged with static electricity.

    The positive feedback (from users twisting and/or pressing the phone) could be that there is a shielding contact that discharges that. It could be either that the contacts are faulty(misaligned springs) or not enough.
    I hope my post makes sense for those familiar with physics and principles of electricity.
    It's interesting you mention grounding, after looking at the entire video teardown of the 1520 the I saw 3 points making contact from the engine board (not for digitizer) but for the vibrator contacts are (2), and a third that's right above it and its for ground, maybe its got a bad connection for some and is not grounding properly.

    I'll post pics later of what I mean
    08-10-2014 01:05 PM
404 ... 45678 ...

Similar Threads

  1. L930: Heat linked to screen discoloration?!
    By Willyman in forum Nokia Lumia 930
    Replies: 30
    Last Post: 08-04-2014, 04:16 PM
  2. Looks like Cyan for 1520 is available in UK??
    By Geddeeee in forum Nokia Lumia 1520
    Replies: 94
    Last Post: 07-30-2014, 06:16 AM
  3. Why wait is fruitful for cyan
    By adijosh2011 in forum Nokia Lumia 1520
    Replies: 3
    Last Post: 07-22-2014, 08:47 PM
  4. Is it necessary to downgrade from DP8.1 to receive Cyan even if there's no bit-locker?
    By albvs in forum Windows Phone 8.1 Preview for Developers
    Replies: 6
    Last Post: 07-22-2014, 05:13 AM
  5. cyan update
    By Ifeanyi Ogbodo-benson in forum The "Off Topic" Lounge
    Replies: 1
    Last Post: 07-22-2014, 02:28 AM
LINK TO POST COPIED TO CLIPBOARD