Proximity Sensor - Always Near (Screen coming unglued?) Blank screen in calls - Nexus 6 Q&A, Help & Troubleshooting

Got my Nexus 6 in Dec '14, and have taken pretty good care of it. Hardly ever dropped, pretty much always in a protective case (but never used a screen protector and my screen isn't scratched or damaged)...
But just started having issue where when making phone call, the screen goes off, and couldn't get it back on.
After some searching, found the issue is the same as shown on this Youtube video : https://www.youtube.com/watch?v=sguXflichEo
The screen/glass is coming up (raised) around the perimeter of the phone, esp in the top left corner (where proximity sensor is) and bottom right corner.
A sensor app (didn't use the same one as on the video but similar app called 'Sensors Test') shows proximity always at NEAR. If I press down on the glass/screen near the edge, can get it to change to FAR. Takes a decent amount of pressure. So, I can get the screen to come on during a call by doing that (and I guess could then switch to speakerphone, if I need to use screen for things like DTMF tones, etc)
Tried looking for how I can fix this and didn't really find anything. Anyone know how to get the screen back where it belongs? Was it glued at factory?

Hi... Check this thread:
https://forum.xda-developers.com/nexus-6/development/mod-fix-proximity-sensor-5-1-rom-t3069031
It could be a different issue though...

5.1 said:
Hi... Check this thread:
https://forum.xda-developers.com/nexus-6/development/mod-fix-proximity-sensor-5-1-rom-t3069031
It could be a different issue though...
Click to expand...
Click to collapse
I saw that thread (and lots of posts in a thread on the Google Product Support Forum) about the issue of screen protector interfering with the proximity sensor - but that is not my problem.
The proximity sensor works - it's the physical 'warping' of the screen coming up/apart from the rest of the phone. It's not a lot - casual looking at the phone you wouldn't notice - but on close inspection it is very noticeable.

My Fix (not sure for how long)...
I really wanted a solution without a disassembly of the phone (I'm pretty sure there's some glue or adhesive involved in keeping the screen assembly where it's supposed to be - as I examined my phone more closely, I could see remnant of it I think)... Just as I could press down on the screen and move it a few mm down where it should be, I could use fingernail and increase the gap. So, I decided to try something a bit risky : Gorilla Glue! (GG) I've used GG on lots of things, and enough to know not only is the stuff pretty incredible, but that it expands. Also it requires a bit of moisture in initial application.
So, using a moist paper towel, I put a very little bit of GG (drops), and then using fingernail, increased the gap enough to get just a tiny amount of GG at the left top corner of the screen, and then used a plastic spring-loaded clamp to keep the screen in place for 12+ hours. Also carefully wiped whatever trace of GG I could find immediately after putting the clamp on.
The result when turning phone back on: Proximity sensor correctly distinguishing between near and far - in other words - it works! Don't know how long this will last. And the glue/screen is still coming up in other areas that I did not try to fix...
Here's a photo of the opposite corner of the phone where you can see the screen coming up:
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and the clamp I used for the glue fix (it's tricky using a clamp with the curved back on the phone - had to place it nearer the center/speaker area)

I must say WoW... Checking my N6 right now and can't see such gaps... Is the corner showing on the pic scratched? Could this problem be the result of some drop(s).
Glad you got it working now anyway. Good job..! :good:

5.1 said:
I must say WoW... Checking my N6 right now and can't see such gaps... Is the corner showing on the pic scratched? Could this problem be the result of some drop(s).
Glad you got it working now anyway. Good job..! :good:
Click to expand...
Click to collapse
No, there's no scratch - the phone really is good condition (I used a cam to take that shot in macro mode so I think there is some out-of-focus/reflection).
In searching about this, it seems that original manufacture of phone used adhesive on the screen/digitizer and others have had this problem. I'd imagine the environment the phone is in can contribute.
And also, possibly, for me - the case I was using might have contributed - this Moku multi-part case has a hard plastic that grips the phone at the 4 corners and is not easy to remove. Now that I know, I'm going to use much more care when removing this. (Also, was using a magnetic card mount and had the metal disc between the phone and the silicone case and had to remove the outer hard plastic to use in the car. Recently changed that to putting the disc on the outside so longer have to remove it so frequently - only if I want to change sim card...)
https://www.amazon.com/Nexus-Case-Absorption-Scratchproof-Protective/dp/B00E4RV8DS/ref=sr_1_4?

Related

Help, I think I broke it!

I bought a new housing for my XDA Stellar as I had dropped it a couple of times and it was starting to look a little unloved. I followed a step-by-step dismantling guide to get the housing off and followed it in reverse to get the new one on. All went well and I was very pleased as I had changed it from being branded O2 to HTC. However, when I booted up, as it loaded the today screen it played the keyboard sliding sound and the screen flipped to landscape, as if I had the keyboard out. No matter what I do I cannot get it to recognise that it is shut. I have had the thing in pieces countless times and so far spent seven hours on the damn thing altogether. I can't see what I have done wrong. Everything seems to be exactly as it was originally.
At the moment I am making do with using it in landscape mode constantly. The only other way to rotate the screen is manually through the screen settings, but this defeats the object of the automatic rotation. And annoyingly, the button on the HTC Home launcher tab rotates it the wrong way!
I know this kind of stuff is less often talked about on here but if anyone has any experience of the hardware or with dismantling/reassembling the kaiser/stellar/tilt, absolutely any help will be immensely gratefully received.
In the meantime, I am gutted...
Thanks.
Mike Channon has much information on this, here is one link, you need to search for the rest.
http://michael-channon.mobile.spaces.live.com/ent.aspx?h=cns!4472423472DCFC38!287&fp=/top.aspx
Thanks for that, but the his guides are the ones I followed already...
Been searching for ages, all I need is one person who knows what the problem is. Is that too much to ask?
I'll keep trying for now.
Thanks again. Anyone have any other ideas they are more than welcome. Any Ideas at all. I'm desperate to sort this out!
Bumpity bump....
My intuition tells me you will have to take it back apart and look for the problem in, on or near the sliding mechanism and sensor. I'd bet you just re-assembled it a little incorrectly thus activating the slide sound and screen flip sensor. Perhaps a pinched wire or something...either way it needs to come back apart and examined closely. Or maybe I am wrong and someone else has a better idea..hope so!
Best of luck to ya!
Thanks, but I've done that so many times. I've looked all around it, swapped the sliding mechanism (as I now have 2), swapped the actual keyboard, put everything back to how it was originally before I swapped the housing, nothing.
What I really need to know is what triggers the screen rotation and sliding sound. I can't for the life of me see what it is. Unless it's something to do with the main board, in which case I'm pretty knackered.
matmaneyre said:
Thanks, but I've done that so many times. I've looked all around it, swapped the sliding mechanism (as I now have 2), swapped the actual keyboard, put everything back to how it was originally before I swapped the housing, nothing.
What I really need to know is what triggers the screen rotation and sliding sound. I can't for the life of me see what it is. Unless it's something to do with the main board, in which case I'm pretty knackered.
Click to expand...
Click to collapse
From what i understand, there are magnets that trigger screen rotation. Im sure your going to ask me were they are, and my answer is have no idea. But my best quess is under the screen and one under the keyboard. So I hope I have helped you.
That would make sense actually, thanks for that. Now to grab my T6 screwdriver and start again...
Ok, so now I get the general gist of how the screen orientation mechanism works with the magnets, I have since found one magnet underneath the screen, but I still cannot find what this magnet relates to in order to switch the screen orientation. i have checked both of my housings and the main board but still to no avail. If anyone else understands this mechanism a bit better, any info would be greatly appreciated.
I'm getting closer, but still not quite there!
matmaneyre said:
I bought a new housing for my XDA Stellar as I had dropped it a couple of times and it was starting to look a little unloved. I followed a step-by-step dismantling guide to get the housing off and followed it in reverse to get the new one on. All went well and I was very pleased as I had changed it from being branded O2 to HTC. However, when I booted up, as it loaded the today screen it played the keyboard sliding sound and the screen flipped to landscape, as if I had the keyboard out. No matter what I do I cannot get it to recognise that it is shut. I have had the thing in pieces countless times and so far spent seven hours on the damn thing altogether. I can't see what I have done wrong. Everything seems to be exactly as it was originally.
At the moment I am making do with using it in landscape mode constantly. The only other way to rotate the screen is manually through the screen settings, but this defeats the object of the automatic rotation. And annoyingly, the button on the HTC Home launcher tab rotates it the wrong way!
I know this kind of stuff is less often talked about on here but if anyone has any experience of the hardware or with dismantling/reassembling the kaiser/stellar/tilt, absolutely any help will be immensely gratefully received.
In the meantime, I am gutted...
Thanks.
Click to expand...
Click to collapse
Ok, don't build up your hopes based on the following - it is by way of things to look for ONLY.
I have not made by own detailed pics of the Kaiser so far and I have not located the magnet or receiver switch - mainly 'cos I wasn't looking for them.
However here is the TyTn / Hermes. It MAY be similar to the Kaiser so it MAY give you ideas on what to look for/check.
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Not the nost impressive looking thing is it!!
This is what a magnet sensor switch looks like. But importantly it will obviously need to be connected to the circuit either by ribbon cable or directly onto the m/board. In the case of the Hermes above it is on the KEYBOARD ribbon cable - so on the opposite side of the above is this:-
Thus we can see that sliding the keyboard across the sensor operates a switch built into thye keyboard ribbon cable.
Now, I'm not sure exactly where you located the magnet, but is it possible that it has come loose and is no longer in the correct position.
Check ribbon cables for a switch.
I will dismantle and take pics to show all this, but unfortunately the coming week is a bit hectic so next weekend may be the first opportunity - you may beat me to it!!
Mike
Update (for Kaiser): The receiver switch is very close to the "A" key on the hardware keyboard. In fact to check the switch open the slide out keyboard and pass a magnet near the "A" key should change the orientation from lanscape to portrait.
If it does not you have a switch problem. If it does then your magnet is not positioned correctly.
Update: Kaiser specific.
The receiver switch is very close to the "A" key on the hardware keyboard. In fact to check the switch open the slide out keyboard and pass a magnet near the "A" key should change the orientation from lanscape to portrait.
If it does not you have a switch problem. If it does then your magnet is not positioned correctly.
Mike
Excellent Mike. Thanks so much.
Now it makes a huge amount of sense, but please don't dismantle your tytn II for my sake in case you encounter more unecessary problems. I know exactly what I'm looking for now from your pictures of the Tytn/Hermes. In fact, I've already seen it, I just didn't know what it was before. It is located right at the very bottom of the keyboard attached to the end of a ribbon. I know the magnet I found is definitely in the right place as I didn't even notice it before KD8DNS mentioned the magnet mechanism and it is fixed in place.
To help others who may encounter this, I will upload a pic of the switch and magnet ASAP. I'm using Vista on a laptop at the moment which I don't connect my device to so I'll do that on my XP desktop when I can. I will also post my findings as and when (or if!).
Thanks a buch mikechannon! Just what I was after.
EDIT>> Also thanks to KD8DNS! (almost forgot)
Well, having taken the whole thing apart and locating the orientation switch and magnet, I STILL cannot get it to orientate accordingly. Having had so much hope, I am now at a loss, short of buying a new untouched housing to see if it works. The switch seems to be in the right place, as does the magnet. I'm stuck again after so much hope.
matmaneyre said:
Well, having taken the whole thing apart and locating the orientation switch and magnet, I STILL cannot get it to orientate accordingly. Having had so much hope, I am now at a loss, short of buying a new untouched housing to see if it works. The switch seems to be in the right place, as does the magnet. I'm stuck again after so much hope.
Click to expand...
Click to collapse
I could be wrong but I have the feeling this is not something major. If you open the keyboard and pass a magnet around the "A" key - does it rotate the screen?
Mike
I appreciate your enthusiasm, Mike, but it is impossibe to 'open up' the keyboard without disconnecting the battery, as the frame around the keyboard also holds the battey in.
I was right though..you were the best person to ask!
I will see what I can do (i.e holding the battery on manually while tesing the switch, although this is a little awkward). If this doesn't work, I would say both of the switches that I have available to test with are faulty. How likely is that?
Well after all that it was all in vain...while trying to fix my kaiser I dropped it, smashing the screen 2 smitherines. As a result, the touch screen doesn't work, the memory card isn't recognised & it won't charge or sync. I had all the case off at the time so the impact between the components & the floor was brutal. Not 2 worry tho, as the missus insisted I buy a new one, so,with permission, I've just ordered a Touch Pro. Better not tell her how much it cost eh?
Thanks to mikechannon in particular & all other people who had an input on this. I never managed 2 solve it but I'm sure if I'd had more time I'd have cracked it in the end (& I don't mean the LCD, I managed that!)
So this is goodbye from me to the Kaiser forum. Just gotta wait for a Touch Pro one now!!!
Thanks 2 all again.
Matmaneyre
HTC Kaiser 28/01/08 - 09/07/08 - R.I.P.

Screen dies when closed - help requested

I have an HTC Dream/G1 that's having a rather odd issue. When the screen is flipped open, it appears to behave exactly as it should. When the screen is closed however, the display becomes a mess of vertical lines (or sometimes just fades to black) and does not respond.
One need only "sleep" the phone and "wake" it after flipping the screen up to bring it back to normal operation. This only lasts until the phone is again closed. I've included a couple of screen captures to help illustrate the issue. I've searched and searched and found absolutely nothing about this problem anywhere.
I'm currently running Firmware 1.6, CyanogenMod-4.2.7.1 with Cyanogen recovery. Everything was working fine and the phone suffered no trauma prior to this issue presenting itself. It literally happened while the phone was sitting idle on a coffee table. I've tried reflashing the phone (including reverting to Dreaimg.nbh and starting "from scratch") to no avail.
It does not appear to be an issue with the ribbon cable (no amount of flexing the cable or moving the screen has any effect). The display behaves properly throughout its movement up until the exact point at which it switches to "closed" functionality (approximately 80% closed). It appears to be something related to the hardware after it switches to "closed mode". My shot-in-the-dark guess is some form of chip-failure related to the phone's orientation detection as the vertical lines do not change regardless of orientation or touch-input. Again, that is just a guess.
If no one here has any recommendations, I will likely perform exploratory surgery and barring any obvious hardware failures, will likely be forced to replace the phone. If I do manage to resolve the issue (with or without outside help) I will surely assemble a how-to so others may resolve the issue in the future.
Thank you everyone for your help and suggestions, and for existing in the first place. You are the reason technology is fun.
EDIT - As pjcforpres kindly pointed out, I neglected to include the fact that the display failure is present regardless of boot state. It behaves this way upon initial "G1 screen" boot and even in the recovery console. This is appears to be further support for the idea that it is indeed a hardware failure.
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Does it do this while in recovery/boot loader as well? Is there anyway when closed to get it to work correctly?(I think your answer will be 'no' but just double checking)...
Oh wow, I can't believe I forgot to include that important bit of information. Yes, the phone behaves this way regardless of boot-state. Even with the initial "G1" screen displayed or in recovery mode, closing the screen brings about the display failure. No amount or configuration of screen or button operation seems to bring about the appropriate closed screen behavior. I will edit my original post with this information if I can. Thanks for looking and responding!
I didn't read your post
But my dads g1 did this.
It's a hardware ribbon, not software.
Go get a return or exchange for a new g1 because yours is defective.
That makes me think hardware then... not sure what though? Like you were saying, if there is an open/close switch of sorts that would be my bet. It could be the flex cable as well, and when it close that much it gets pinched, and happens to coincide with the orientation flip. But then it wouldn't take sleep and unsleep to go back right when opened, I would think... so we are back to it probably being the orientation sensor switch being funky like a monkey.
Well, I just tore it completely apart and put it back together to no avail. I made the assumption that the LCD flex cable was not the cause because of the behavior (only happening at a precise position, having to sleep then wake the phone to recover, etc...). It appears, however, that this assumption was incorrect. On Icebergxx's suggestion I decided to give it another look. I wedged a tool in against the cable and with various forceful flexing I can recreate the issue even with the screen fully extended. Luckily it appears the LCD flex cable is available on ebay for $24. Thank you so much for your responses. I'll dig around for a flex cable replacement guide, if a sufficient one does not yet exist, I will take the opportunity to share. Thanks again!
You're so handy its admirable haha good luck buddy glad to have helped.
Happy to hear it is just the flex cable! I was worried with the way it was acting it was something worse, just the whole not coming back to life when opened without sleeping then un-sleeping.

Please help, I cant pull down my status bar,

Hi All,
I noticed an update for my z3 compact and done it, nothing gone wrong after that, but 2 weeks passed and i noticed i cant pull down my status bar, but the status bar can be accessible when the screen is locked or when im on landscape mode. So i assume theres no lcd or other part broken, just the system or framework got stuck somewhere. The phone is running Android 5.1.1.
I would be very grateful if anyone can help, im still Stock n not rooted. Should i consider rooting my z3c? Ummm i do try to find excuse to going back on my BingeFlashing lol
thanks.
Rixon
R1xON said:
Hi All,
I noticed an update for my z3 compact and done it, nothing gone wrong after that, but 2 weeks passed and i noticed i cant pull down my status bar, but the status bar can be accessible when the screen is locked or when im on landscape mode. So i assume theres no lcd or other part broken, just the system or framework got stuck somewhere. The phone is running Android 5.1.1.
I would be very grateful if anyone can help, im still Stock n not rooted. Should i consider rooting my z3c? Ummm i do try to find excuse to going back on my BingeFlashing lol
thanks.
Rixon
Click to expand...
Click to collapse
Simply Factory reset your device and the Lockscreen should be working just fine
Might be a capacitative sensor issue.
Try entering the service menu (bring up the phone dialpad and enter *#*#7378423#*#* ), then select Service Test -> Touch Screen.
See if you can touch and draw to the top edge of the screen. If not, you might have a faulty capacitative sensor (it's eligible for warranty replacement).
Hi all
Thanks for the quick reply. Well i had done the factory reset suggested above and the problem still persist.
Try inputing the Z3c Secret code above. And i cant really assume its ok or not. Since i cant draw until the top part which is the location of the status bar, but on the other hand, well i cant draw untill the bottom part which the home n back area as well.
I had a similar problem with my z3c recently and I sent the phone for repair and it was covererd by warranty
Ummm somehow i fixed this issue by using a hairdryer on the top part of the screen,turn my z3c off and i blow it for like 10 too 15 mins or untill it feel heated abit, next put it on a air proof container with some hard salt inside well it suck moisture if ur guessing. Let it under the sun for like half day. Come back home n turn it on, and its normal again......... man i feel weird. Or maybe my screen got some water inside? I dunno
i have same problem
Anyone who cannot swipe down notifications or quick settings, due to a broken digitiser, can follow these instructions:
[emoji7]
Download 'All in one Gestures' app from the playstore.
Go to the 'SWIPE' tab.
Enable.
Under 'Edges' , select 'Top Area'.
Then via the apps settings, choose 'Personalization'.
Now under 'Swipe Area', go into 'Edge Preference.
Make 'Opacity' 0%
With 'Edge Sensitivity' start from 0% and keep moving the slide left until the swipe down works, mine is set at 90px.
'Edge Width' 100%
'Swipe Distance' 0%
Now under 'Touch Feedback' turn off both 'Toast Message' and 'Animation'.
Then turn down 'Vibration Intensity' to '0'
Done.
You now have the screen functioning as normal.
[emoji7]
ATTN:
Remember to keep 2 backups of this apk, in approx 30 days, Google will remove apps that use the accessibility service.
News:
https://www.xda-developers.com/google-threatening-removal-accessibility-services-play-store/
**This phone is bendable 0.1mm will open your phone, anodized aluminium bumper recommended for jeans and stairs, I also recommend tempered glass, both sides. B7000 glue for repairs, no heat, clothes pegs, 48 hours.
Robot76 said:
You now have the screen functioning as normal.
[emoji7]
Click to expand...
Click to collapse
Perfect. Thank you.
CAL7 said:
Perfect. Thank you.
Click to expand...
Click to collapse
Remember to keep 2 backups of this apk, in approx 30 days, Google will remove apps that use the accessibility service.
[emoji7] News:
https://www.xda-developers.com/google-threatening-removal-accessibility-services-play-store/
Z3C LOS OREO ARISE
I have the same problem, and looking in some Italian forum it's a common problem.
My touch screen started not work in up right edge. After some time in down left one (I can't use back and hone button on the nav bar) and in the end all the top first 4mm stopped working.
This is the touchscreen test in the three moments
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Obviously this started a couple weeks after the warranty has expired.
Now I'm using 'j touch' app to have a floating button with gesture and it's pretty good.
I will try the that you handed suggested...
There is anything else that I can do to resolve the problem? But I think is only hardware failure
Sparaflashato da Z3C
the stranger94 said:
I have the same problem, and looking in some Italian forum it's a common problem.
My touch screen started not work in up right edge. After some time in down left one (I can't use back and hone button on the nav bar) and in the end all the top first 4mm stopped working.
This is the touchscreen test in the three moments
Obviously this started a couple weeks after the warranty has expired.
Now I'm using 'j touch' app to have a floating button with gesture and it's pretty good.
I will try the that you handed suggested...
There is anything else that I can do to resolve the problem? But I think is only hardware failure
Sparaflashato da Z3C
Click to expand...
Click to collapse
Isn't it f'ing painful
[emoji7]
Z3C LOS OREO ARISE

Galaxy S4 Active GPS Fix That Worked For Me

So My GPS randomly stopped working completely one day and so I started doing research on ways to improve it. I literally tried everything from application quick fixes, leaving my phone sitting outside for hours on end, ROM fixes... ext and nothing helped at all. I finally came across this article and, since I had nothing to lose at this point, I gave it a shot. When I finished, i got GPS fix within 2 seconds! This option is not for everyone, I really suggest making sure that the software/application fixes don't help first because taking apart your phone certainly has its risks but if you are like me and nothing has been working, there is hope!
http://www.instructables.com/id/Galaxy-S4-GPS-repair/
Check this article out and give me a shout out if it worked for you too.
Credit to bobyong808 from instructables.com for writing this article.
harrisd23
Keep in mind that the disassembly process is slightly different since we are talking about actives, but I just looked up another article showing how to remove the back of the active and jumped to step 3.
Thanks man, you nailed it! (I just signed up here to show my appreciation for your post, because otherwise I would probably not have come across the solution at all)
I had been somewhat unhappy with my s4a's gps performance since I bought the phone. It usually worked, but often needed 2-3 minutes for the first fix and often lost signal for a few minutes intermittently. Today I opened it up and noticed that the GPS antenna (or what I believe to be the GPS antenna) had apparently never been properly connected to the board. The springs had left no marks on the other side of the contacts (completely blank and spotless), unlike in all the other places where there are connections from the board to the midframe. Then I put a small, folded piece of tinfoil in as suggested in the link you posted and woohoo, only a few seconds now until I get my first fix outside and it can sometimes even get a fix inside my flat (a few meters away from the window at least, with 3 more floors above me), whereas before i had to hold my phone out of the window for that.
Now I am also curious whether or not that will reduce the heavy battery drain of gps logging while hiking in the mountains.
Also thanks for the hint about not following the disassembly instructions directly, since it seems one can easily break the midframe if unaware of the plastic clip above the battery holder. I used these instructions:
h t t p s : / /uuu.ifixit.com/Guide/Disassembling+Samsung+Galaxy+S4+Active/37470
With them and the appropriate tools, even I (theoretical physicist with thumbs on all fingers) found it easy to carry the task out.
(Sorry for the urls, I am not yet allowed to post links here, so replace uuu by www)
Also note that I believe that the two antenna contacts shown on the pictures of your instructables howto are the wrong ones. That should be the 4G antenna, wheras the GPS antenna is on the opposite side as shown here at 3:30:
h t t p s : / /uuu.youtube.com/watch?v=zm4f2XjQLAM
(at least that is where I put my tinfoil, maybe I am wrong and the effect I experience soley stems from me tightening the screws harder than they were before?)
Alright, now excuse me please, I have to catch that Pokemon which apparently spawned in my bathroom
My pleasure, glad I could help!
longpu said:
Thanks man, you nailed it! (I just signed up here to show my appreciation for your post, because otherwise I would probably not have come across the solution at all)
I had been somewhat unhappy with my s4a's gps performance since I bought the phone. It usually worked, but often needed 2-3 minutes for the first fix and often lost signal for a few minutes intermittently. Today I opened it up and noticed that the GPS antenna (or what I believe to be the GPS antenna) had apparently never been properly connected to the board. The springs had left no marks on the other side of the contacts (completely blank and spotless), unlike in all the other places where there are connections from the board to the midframe. Then I put a small, folded piece of tinfoil in as suggested in the link you posted and woohoo, only a few seconds now until I get my first fix outside and it can sometimes even get a fix inside my flat (a few meters away from the window at least, with 3 more floors above me), whereas before i had to hold my phone out of the window for that.
Now I am also curious whether or not that will reduce the heavy battery drain of gps logging while hiking in the mountains.
Also thanks for the hint about not following the disassembly instructions directly, since it seems one can easily break the midframe if unaware of the plastic clip above the battery holder. I used these instructions:
h t t p s : / /uuu.ifixit.com/Guide/Disassembling+Samsung+Galaxy+S4+Active/37470
With them and the appropriate tools, even I (theoretical physicist with thumbs on all fingers) found it easy to carry the task out.
(Sorry for the urls, I am not yet allowed to post links here, so replace uuu by www)
Also note that I believe that the two antenna contacts shown on the pictures of your instructables howto are the wrong ones. That should be the 4G antenna, wheras the GPS antenna is on the opposite side as shown here at 3:30:
h t t p s : / /uuu.youtube.com/watch?v=zm4f2XjQLAM
(at least that is where I put my tinfoil, maybe I am wrong and the effect I experience soley stems from me tightening the screws harder than they were before?)
Alright, now excuse me please, I have to catch that Pokemon which apparently spawned in my bathroom
Click to expand...
Click to collapse
longpu said:
I believe that the two antenna contacts shown on the pictures of your instructables howto are the wrong ones. That should be the 4G antenna, wheras the GPS antenna is on the opposite side as shown here at 3:30:
Click to expand...
Click to collapse
Much obliged for that!
I was able to download a service manual that appears to be an inside document bundle of Samsung. The GPS antenna is named 'ANT200', and it is in fact, on the other side of the PCB (left size, when looking at the PCB from the battery side of the phone, with the rear plastic assembly removed.)
Previously I tried the GPS fix by adding aluminum foils on the two other antenna connectors, which did not fix my GPS. adding the alumium on this single connector made a difference. (I actually also took it back out, to make sure this really helps.) However, still takes a while to get a fix. at least with my phone held outside my apartment.
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N910T won't fix on satellites, even though it can see them.

Hey guys, I'm pulling my hairs out on this problem I am getting with my note 4.
Long story short - I cannot get a GPS fix (to even a single sat) with my N910T.
The longer version:
This thing had a cracked screen - but worked great before that (no GPS problems) and I used it a good year before breaking it. So I bought a N910A (ATT) note 4 to use the screen to fix my trusty note.
I gutted both phones, and put my N910T motherboard in the N910A's frame, with the screen still attached to the frame. I kept the N910A's USB daughterboard (with the charging port) because in the research I did, it seemed basically identical to the one from my broken screen frame, and I knew it would be tricky to get that out and into the new one without busting the new glass or destroying the flex cables.
So after some trouble with the S pen not working initially (the cable didn't press in fully, had to stick paper behind the flex cable and it went in properly) I was able to get the phone up and running again, and all features seemed to work great again.
However - I noticed after a couple days that the GPS was super spotty, so bad it was mostly unusable. I noticed that AGPS was on and it was using wifi and mobile data to help get a fix, so I turned it to GPS only mode. In GPS only mode the phone gets not signal whatsoever, no matter where I am.
I tried the simple fixes many recommend online, one which is to try tightening the screws a bit, and in fact, as this process continued I opened and closed up the phone several times, making sure to carefully but tightly screw all the screws back into place. That didn't help. I also tried making sure the compass calibration was good - and it made no difference. And I even factory reset to make sure there were no issues with installed apps or anything like that.
I got to thinking, perhaps its a issue with the small bendable pins that press from the motherboard into the mid-frame not making good contact, so I tore the phone down a couple more times, slightly bent out - very carefully - all the pins that press into the mid-frame to make them all have a solid contact, and even tried to get any corrosion or debris from the pads on the mid-frame. I even made sure there was contact for those little ones alone the sides of the phone which seem to have something to do with the buttons rather than what I'm dealing with.
Still no luck, so I tried doing a NV rebuild, which I read might solve getting 0 sat fixes, and discovered my phone wouldn't let me into that menu of the service options, so I had to install root and then do it through shortcut master instead. Once I finally was able to get to the menu and run the NV rebuild.... nothing changed.
So I am fresh outta ideas, and I'm thinking that A) that ATT USB daughterboard actually plays a part in GPS somehow and I need to take my TMO one out of the old phone and put it in the new frame and screen.... or B) Something is damaged on my motherboard.... or C) Somebody out there has a better solution
Any ideas, experiences of what worked are all appreciated!
BUMP --------
Still having this issue. Tried opening it up, and realllllly making sure those antenna springs are making contact, and I made sure the contacts on the mid frame are clean.
I tried TopNTP and that made no difference. Here is an image of whats going on when I run GPS Test:
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Bump?
Losing hope for my old phone here
Anybody happen to know if the daughter board that has the USB charging port plays any role in gps?

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