Develop Bugs

Help! GPS problem.

My phone(e973) can't detect GPS signal. I tried to flash different ROMs(ICS,JB,CM10.1 ...) but it still doesn't work. I installed GPS Status app to support for getting GPS signal but still can't detect any satellites. I tried to hold my phone and my father's phone(HTC One X) and stood outdoor. the phone of my father detect satellite very quickly while mine is not. 2 days ago, I flashed Liquid Smooth 4.2.2 rom at AT&T Optimus G Box. Now, It shows like in the screenshot.
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Pls help! I tried to stand in the sunshine for over 15 minutes, but it is still "looking for GPS location"

I'm having the same issue with my Droid RAZR.
Sent from my XT912 using xda app-developers app

have you tried going back to stock (or latest official) with the KDZ?

Can it see the GLONASS satelites?

t1mman said:
have you tried going back to stock (or latest official) with the KDZ?
Click to expand...
Click to collapse
I tried but still not succeed

Tim4 said:
Can it see the GLONASS satelites?
Click to expand...
Click to collapse
No. I can't see any satellites.

any body help me

Since the issue seems pretty specific, I'd go for an RMA, you might have an issue with this phone specificaly.
If you do, don't forget to return to locked/stock/unrooted and remove the traces

t1mman said:
Since the issue seems pretty specific, I'd go for an RMA, you might have an issue with this phone specificaly.
If you do, don't forget to return to locked/stock/unrooted and remove the traces
Click to expand...
Click to collapse
I did KDZ to return to 4.0.4 stock and I also made a hard factory reset but the problem still isn't solved.
I'm not sure whether or not it is related to baseband because I heard that the baseband manage radio and GPS signal. Do u have any solutions.

galeonui9590 said:
I did KDZ to return to 4.0.4 stock and I also made a hard factory reset but the problem still isn't solved.
I'm not sure whether or not it is related to baseband because I heard that the baseband manage radio and GPS signal. Do u have any solutions.
Click to expand...
Click to collapse
My solution, as I told you, is to return it for an RMA, the Optimus G has a 1 year waranty so it must still be covered since it came out not even a year ago!

Sorry to see this thread this late,but i have some questions:
1.where from did you bought your phone ?
2.was new?second-hand?
3.is your phone a demo/pre-unit?
I'm asking this because i tested alot of demo/pre units and many of those had gps hardware disabled.
In uour case,i'm 99% surr it'd a hardware problem,has nothing to do with the software.
Sent from LG E975 pwd by CM 10.1

kimitza said:
Sorry to see this thread this late,but i have some questions:
1.where from did you bought your phone ?
2.was new?second-hand?
3.is your phone a demo/pre-unit?
I'm asking this because i tested alot of demo/pre units and many of those had gps hardware disabled.
In uour case,i'm 99% surr it'd a hardware problem,has nothing to do with the software.
Sent from LG E975 pwd by CM 10.1
Click to expand...
Click to collapse
well, a man sold it to me. He've been studying in canada and when he returned for holiday, I bought it from him. It is a second- hand phone because he was using this phone before selling to me..
I don't know wether or not it is a demo but front face and rear face has a LG logo and rear face has the following information:
- LG-E973 FCC ID:ZNFE973
- IC:2703C-E973
- Made in Korea
But when I check IMEI on the Internet, it shows that my phone model is LG E970
2 013287000006856 LGE970 null 101KX001186 20010101 GLOBAL/GLOBAL N N

You should try to contact LG and explain the situation, I'm pretty sure you do have a waranty even if it's second hand.

Only if he has the original invoice and the warranty certificate.if not,i'm afraid there is no good news.
He can talk to the person who sold it and ask if he has them,but....
Sent from LG E975 pwd by CM 10.1

kimitza said:
Only if he has the original invoice and the warranty certificate.if not,i'm afraid there is no good news.
He can talk to the person who sold it and ask if he has them,but....
Sent from LG E975 pwd by CM 10.1
Click to expand...
Click to collapse
I don't have the warranty certificate and the person selling it to me is now in canada.

kimitza said:
Only if he has the original invoice and the warranty certificate.if not,i'm afraid there is no good news.
He can talk to the person who sold it and ask if he has them,but....
Sent from LG E975 pwd by CM 10.1
Click to expand...
Click to collapse
Are you sure of that? Have you tryed it yourself?
IMHO, as long as the IMEI has not been reported stolen, you can have it serviced. I have done many RMA over the years (I've been working in IT's for more than 10 years) and never once I was asked for the "warranty certificate", and only some times I was asked for an invoice (didn't even needed to be original)
Try it, if it fails, then contact the dude and have him scanned/emailed the things to you.
If you can't even try this out, there's no point trying to solve anything else.

Yeah,i'm sure.But i didn't made myself clear. I asked about papers so he could send the phone to WARRANTY.
Without those papers,it won't be worth the price. Let me tell you why.The mainboard needs special tools to work on.This special tools can be found only at LG or official services.I will look further on the service manual to see if the gps module can be replaced.If it's soldered to the mainboard, without the possibility to be replaced,then he needs the whole mainboard and this will cost about 200 euros as spare.Again,the replacement can only be done in an official service,because the imei will have to be re-writen.
Not to mention the callibration of the screen to work properly on the new mainboard.It is more complicated than it seems my friend,believe me.
I don't know how can you replace components without proper papers,without the warranty certificate.It's the basic in service .
You said it yourself, if you can't prove the origins of the product,how do they know it's not stolen and not out of warranty?The IMEI is registered at the operators,not at LG.

Why don't you just let the OP contact them and explain the issue
http://www.lg.com/ca_en/support/contact-customer-support
They can check with the serial number to see if the waranty is still valid. Many company does.
And I'm not talking about sending it for repairs at his expenses, but under waranty. As I already stated, many companys can service a device under waranty only with the serial number.

At least in Europe this will not work.
Why?because you need to prove you are the rightful owner of the device.besides,in Europe we 2 yrs warranty and it's stated clearly:in order to benefit the warranty,the product must be shipped in the original box,with all accesories,along with the invoice(or any other payment proof) and the warranty certificate.simple as that.
Sent from LG E975 pwd by CM 10.1

White bright spot on the screen

I've noticed a few days ago that on my G Pad a white spot has appeared on the lower left side of the screen.
I've never seen it and I'm almost sure that is not something there from day one (I would have noticed since then)
Here you can see some photos. It may seems small and hard to spot but if I scroll a page with a white background I can notice it immediately. This happens only with the white, with all the other colors I can't see it.
Do you what it is? A little damage on the screen or some problem that I can resolve with the warranty?
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I don't know what it is but my first G Pad did this after about 3 months, had a refund and bought another. That is now, after 4 months use, away being repaired for the same issue. Both had 3 or 4 spots or small patches, as you say, they become obvious when you scroll a mainly white screen but are tricky to photograph.

Armpowered said:
I don't know what it is but my first G Pad did this after about 3 months, had a refund and bought another. That is now, after 4 months use, away being repaired for the same issue. Both had 3 or 4 spots or small patches, as you say, they become obvious when you scroll a mainly white screen but are tricky to photograph.
Click to expand...
Click to collapse
So it seems to be something related to the LCD technology, doesn't it? Something that could happen after some usage, right?

Here you go mate I also have the same problem. The spot wasn't there when I first bought it, it has just recently appeard
Sent from my GT-I9505 using XDA Free mobile app

Sent from my LG-V500 using XDA Free mobile app

5warafat1 said:
Here you go mate I also have the same problem. The spot wasn't there when I first bought it, it has just recently appeard
Sent from my GT-I9505 using XDA Free mobile app
Click to expand...
Click to collapse
Wow... What are you going to do? Try with the lg customer service or keep it?
Do you think that maybe a new model (or ours fixed) is going to show the same issue after some time?

I have the same issue! And it's not all: it's the second G Pad with the same issue!
I buy the first, then when I see the the problem I went to an LG service which change the old one with a new, but the new one has the same issue...plus a dead pixel

No I haven't contacted lg regarding this issue, I brought it five months ago. I think am just going to keep it as it nothing too major.
Sent from my LG-V500 using XDA Free mobile app

I have got the same issue. One white spot in the middle of screen and four spots on a corner. I noticed them after 3-4 months after the purchase. Frankly, I am going to wait a few weeks before contacting LG service. Maybe someone has already discussed the problem with lg customer service?

brzytwa007 said:
I have got the same issue. One white spot in the middle of screen and four spots on a corner. I noticed them after 3-4 months after the purchase. Frankly, I am going to wait a few weeks before contacting LG service. Maybe someone has already discussed the problem with lg customer service?
Click to expand...
Click to collapse
I sent my G Pad to store where I buy it. Them have sent it to an LG center.....after two months my G Pad came back with a only a firmware reset, because for LG the problem doesn't exist or it's not enough to be repaired...

I've had a similar issue and within 2 weeks the Tab came back with a new screen - without the bright spot, without thin blue line and without any lightbleeding.

Zarrick19 said:
I've had a similar issue and within 2 weeks the Tab came back with a new screen - without the bright spot, without thin blue line and without any lightbleeding.
Click to expand...
Click to collapse
your experience could be very important for us!
can you tell us exectly who did you contact? where did you lead the tablet? do you have any document that reports your problem?

mattia.b89 said:
your experience could be very important for us!
can you tell us exectly who did you contact?
Click to expand...
Click to collapse
My G Pad was away for this problem for about 10 days and has come back without the white spots on screen. There's no obvious sign of how they do the repair (good!) - paperwork says replacement display.
This was in the UK, it was about 4 months old and I contacted the retailer who contacted LG, who agreed the repair (I had to send photos) and arranged for a courier to take it to the repair centre. The new panel seems to be a bit pink but maybe the old one was too !

Oh well, the new, replaced display has a dead pixel too. It looks really tiny, almost as it is just one pixel, so I don't think the retailer will repair it Honestly, I won't go buy any other LG device in the future.

I don't know if I'll buy another LG product in the future, but I'll keep in my mind this bad experience...

I tried to bring my Gpad to a LG Repair Center. I hope that the defect will be resolved

let us know!
meanwhile a lamp (I think) related to illumination doesn't work anymore
here a photo that show the issue, right between two fingers
http://postimg.org/image/si3t8glsp/

I have 2 of them ( one on each side )
But besides them, no other issues so far.
mattia.b89 said:
let us know!
meanwhile a lamp (I think) related to illumination doesn't work anymore
here a photo that show the issue, right between two fingers
Click to expand...
Click to collapse

S pen put in backwards....

So this has been posted only once somewhere else, but unfortunately not on XDA. I accidentally put my s pen in my phone backwards and it was stuck. Of course, I frantically pulled it out, but the end is now stuck inside the phone and will not come out.
Anyone have any advice? Would I be able to take it back under a 14 day return or warranty it? This really sucks right now.
So I advise you all not to do what I did.

Okay, so what I suggest is putting super glue on the tip of your s pen and putting it in there. Maybe gorilla glue and use it to fish it out?

willbs94 said:
So this has been posted only once somewhere else, but unfortunately not on XDA. I accidentally put my s pen in my phone backwards and it was stuck. Of course, I frantically pulled it out, but the end is now stuck inside the phone and will not come out.
Anyone have any advice? Would I be able to take it back under a 14 day return or warranty it? This really sucks right now.
So I advise you all not to do what I did.
Click to expand...
Click to collapse
You ain't the only one bud.
http://forum.xda-developers.com/showthread.php?t=3184490

From what I read it's not coming out. The design of the locking and the pens design missed this lol.
Sent from my SAMSUNG-SM-N920A using XDA Free mobile app

So I was able to get my pen out but the sensors and locking mechanism is now broken. Pen still works. You must turn off Sale pen detection I believe.
Sent from my SAMSUNG-SM-N920A using XDA Free mobile app

willbs94 said:
So this has been posted only once somewhere else, but unfortunately not on XDA. I accidentally put my s pen in my phone backwards and it was stuck. Of course, I frantically pulled it out, but the end is now stuck inside the phone and will not come out.
Anyone have any advice? Would I be able to take it back under a 14 day return or warranty it? This really sucks right now.
So I advise you all not to do what I did.
Click to expand...
Click to collapse
I was specifically warned not to do this by my best buy sales person. I thought, well, let me see if there's resistance before it gets stuck...Nope! Like an idiot, I broke it off in there. The good news is that Samsung will repair it for a cost. I'll let you know how much. Call it an "idiot tax"

taylor7667 said:
I was specifically warned not to do this by my best buy sales person. I thought, well, let me see if there's resistance before it gets stuck...Nope! Like an idiot, I broke it off in there. The good news is that Samsung will repair it for a cost. I'll let you know how much. Call it an "idiot tax"
Click to expand...
Click to collapse
This made me laugh. :thumbup:

I put my pen in backwards and had it stuck although I didn't break the end by forcing it out. I tried to exchange it at Best Buy, but was turned down. I called Samsung Support and they created a 2-day shipping label for me to send them the phone. I sent them the phone 8/26 and it is scheduled to arrive in my hands 9/10 which means I will be apart from my phone for 16 days. I was not charged for the repair nor the shipping to and from the repair center.

Blue circle explains it all...
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Guys there is a way to get it out without breaking it.
https://youtu.be/oEUaeGYhTlk

Euphoria64 said:
Guys there is a way to get it out without breaking it.
https://youtu.be/oEUaeGYhTlk
Click to expand...
Click to collapse
Thanks for the link. I would never be stupid enough to put it in backwards but just in case I let someone use my device and they do, this is great info.

Yes, I thought I would never be stupid enough to put it in backwards either. But rushing to clear out from one meeting on the way to another one, talking to some folks at the same time, in backwards it went.
My only gripe with Samsung is there is absolutely NO difference in resistance inserting it backwards or forwards, although I'm not sure it would be possible to do that and keep the flush fitting s-pen.
I used the drinking straw method to remove my s-pen, and the internals of the phone are fine. Thank you Internet for saving my device!
Sent from my SAMSUNG-SM-N920A using XDA Free mobile app

I've seen many videos confirming the paper method works to fix this issue. Your post is the first I've heard that the straw method also works. It is the ease in which this mistake can be made that is the design flaw.

4 hour old note 5... at a bar with co-worker. he dares me to put it in backwards. i foolishly did. got stuck. was able to remove it after some force and playing around. works, but phone has no detection of in/out as expected. called ATT and their sending me a replacement. had the rep state on the record the pen was "stuck inside device, and now that it has been removed has broken phone-to-pen sync"
blah :-\

simbill said:
4 hour old note 5... at a bar with co-worker. he dares me to put it in backwards. i foolishly did. got stuck. was able to remove it after some force and playing around. works, but phone has no detection of in/out as expected. called ATT and their sending me a replacement. had the rep state on the record the pen was "stuck inside device, and now that it has been removed has broken phone-to-pen sync"
blah :-\
Click to expand...
Click to collapse
Lol, my story is similar to yours. I first read about the issue and didn't believe it could be that easy to render the spen useless. It was that easy. Customer support came through for me. Not a big issue anymore since there is a known easy way to fix.
Sent from my SAMSUNG-SM-N920A using Tapatalk

serpent2005 said:
Lol, my story is similar to yours. I first read about the issue and didn't believe it could be that easy to render the spen useless. It was that easy. Customer support came through for me. Not a big issue anymore since there is a known easy way to fix.
Sent from my SAMSUNG-SM-N920A using Tapatalk
Click to expand...
Click to collapse
Crazy right? I didn't even go THAT far into the device. Our eyes wide in shock and amazement as we tried to process what had just happened. It was just as I was wrapping up the showing off features and screen bit too. Damn, maybe next time lmao. Att got my back though, lucky !

willbs94 said:
So this has been posted only once somewhere else, but unfortunately not on XDA. I accidentally put my s pen in my phone backwards and it was stuck. Of course, I frantically pulled it out, but the end is now stuck inside the phone and will not come out.
Anyone have any advice? Would I be able to take it back under a 14 day return or warranty it? This really sucks right now.
So I advise you all not to do what I did.
Click to expand...
Click to collapse
Take it to your local repair store. They can have it back to you in no time. If you are in Montana I can help

2 G4's - different cameras and screen temps?

I am hoping you can help me diagnose two problems with 2 G4's owned by my GF and me.
Similarities: Same device. Same software build. Same camera settings. Same screen brightness.
Differences: Phone on LEFT was purchased in August 2015, phone on RIGHT in June 2015.
Problem #1 Significant difference in screen color and brightness. The phone with the good camera is on the left. I believe the phone on the right has the better looking screen. Are most of the G4's warm or cold?
Problem #2: "UFO Effect" on night shots. Obviously sensor on top pics is better. But why? All of the camera settings are identical. The phones were placed right next to each other. Each photo shows halos around lighting. Auto mode, HDR Auto, Flash off.
Do we return one, or both? Thanks...
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Check hardware revision under settings>about phone>hardware info
Sent from my VS986 using Tapatalk

Just in case.... Make sure there's no piece of protective plastic on camera lens.

It sure looks like there's a fingerprint on the second camera's lens.

ED2O9 said:
It sure looks like there's a fingerprint on the second camera's lens.
Click to expand...
Click to collapse
Yeah I second that. I took my G4 out last night for pictures to see if I could reproduce the issue. I was able to get a similar lens flare to that simply by having fingerprint oils on the lens. Cleaning it solved the problem entirely.

Man, here I am on XDA looking like a fool, it WAS a smudge even though the lens looked fine....
Before my posting abilities are revoked, I went to the VZW store about the screen tint and they offered me a replacement but it's "Certified Like New" because this happened at 25 days and not 14...
The other option is to ship my device to an LG warranty center where they attempt to "repair" it and if not, send a brand new replacement. This will take ~3 weeks where I will not have a device (my old phones are all GSM).
Anyone have experience with LG Repair or VZW "Like New"?
I lean towards the latter....as much as a used phone sucks, at least VZW admits it needs replacement. Who knows how LG will approach the situation.

btvranger said:
Man, here I am on XDA looking like a fool, it WAS a smudge even though the lens looked fine....
Before my posting abilities are revoked, I went to the VZW store about the screen tint and they offered me a replacement but it's "Certified Like New" because this happened at 25 days and not 14...
The other option is to ship my device to an LG warranty center where they attempt to "repair" it and if not, send a brand new replacement. This will take ~3 weeks where I will not have a device (my old phones are all GSM).
Anyone have experience with LG Repair or VZW "Like New"?
I lean towards the latter....as much as a used phone sucks, at least VZW admits it needs replacement. Who knows how LG will approach the situation.
Click to expand...
Click to collapse
I had a refurbished S5 which server me well until it sank under the weight of TouchWiz. I don't even remember why I had the S5 replaced though, lol.

Update - the Verizon store confirmed the screen issue (warm/yelow tint) and sent a certified like new replacement...which has EXACTLY the same problem.
I have looked at maybe 10 G4's now and all are normal except the 2 I received. So frustrating. Off to warranty replacement #2? Ugh
LG 's support has not been helpful at all. They don't understand English, and the only option remains shipping out for "repair" and waiting a few weeks.

And so it starts... LG's good ol manufacturing. I went through 5 LG G2's.. Was looking to get the g4, but not about to deal with this **** again..

ars0n said:
And so it starts... LG's good ol manufacturing. I went through 5 LG G2's.. Was looking to get the g4, but not about to deal with this **** again..
Click to expand...
Click to collapse
5, wow. What was the problem?
My 3rd one is in the best shape yet. It's still not ideal, and VZW said I'd get a brand new one if this didn't work, but maybe the new one would be worse... Ready to just move on

2 bad lcds, 3 bad gps

btvranger said:
Problem #1 Significant difference in screen color and brightness.
Click to expand...
Click to collapse
Could you explain a little more about the difference in brightness ? how much brighter was the 'better' screen compared to the inferior one.
By more i mean if you had both side by side, with auto off, and just using manual brightness what was the difference in % level to get both screen to appear of the same brightness, to your eyes.
---------- Post added at 03:31 PM ---------- Previous post was at 03:28 PM ----------
btvranger said:
Man, here I am on XDA looking like a fool, it WAS a smudge even though the lens looked fine....
Click to expand...
Click to collapse
worse for us would be if you were right
Before my posting abilities are revoked, I went to the VZW store about the screen tint and they offered me a replacement but it's "Certified Like New" because this happened at 25 days and not 14...
The other option is to ship my device to an LG warranty center where they attempt to "repair" it and if not, send a brand new replacement. This will take ~3 weeks where I will not have a device (my old phones are all GSM).
Anyone have experience with LG Repair or VZW "Like New"?
I lean towards the latter....as much as a used phone sucks, at least VZW admits it needs replacement. Who knows how LG will approach the situation.
Click to expand...
Click to collapse
They'll just replace the screen, much cheaper than breaking open a new one. repairing the G4 is easy.
---------- Post added at 03:33 PM ---------- Previous post was at 03:31 PM ----------
ars0n said:
And so it starts... LG's good ol manufacturing. I went through 5 LG G2's.. Was looking to get the g4, but not about to deal with this **** again..
Click to expand...
Click to collapse
I find it happens with many devices. check the boards.
If you have the option of sending it in then that is good news. if you got as many replacements as you did that is even better news. I'm always amazed they agree to do this so many times.
The bad part is if buy from another country and no option to warranty at all or their service network is non-existent which can happen with some chinese phones.

Thanks for the detailed reply one twelve. I don't think the problem was brightness, but tone of the screen. I've already returned the devices so can't compare. I wonder if it could be fixed if LG let us calibrate the screen. Anyway, I'm sticking with the 3rd device. It's close enough, and a new one could present more problems.
Very disappointed in LG's support. I love their devices but it's a major negative in the next purchase decision. I agree, they'd probably just replace the screen...which is why I wanted a replacement.

Well, it happened... (eMMC failure)

Well, the day has come. After having to replace my LG G4 four months ago due to the Bootloop issue, I am now running into a similar problem with my Verizon Galaxy Note 4. Based on research I've done, I have came to the conclusion that my eMMC memory chip is failing on me. I ran four memory tests using AndroBench, and every one of them gave me a sequential read speed between 38 and 43 megabytes.
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I come to the geniuses of XDA to see if there is any way to fix this issue. Could I possibly install some software to delay it or replace the chip somehow? Perhaps a mainboard transplant from a broken device from eBay? I haven't had this phone long and I really enjoy it, so I'd hate to have to get a whole new one if this is repairable. I just don't know a whole lot about the hardware aspects and if it is possible. Thanks for the help, and let me know if there's anything else you need to know to help.
Edit: My image doesn't seem to be working for whatever reason, so here's a pseudo-link: imgur. com/a/Mq5VF

The Wakelock - CPU Awake app can help for awhile, but you will most likely need to replace the motherboard. In the US Samsung is replacing MBs for about $50 to $150 if phone is out of warranty (call 1-800-Samsung) should be free if in warranty. Otherwise you can do it yourself, but watch some you tube videos fist. The procedure is not for the faint of heart.
See this thread for more details: https://forum.xda-developers.com/note-4/help/note-4-freezing-restarting-t3348821
The thread is long, but well worth reading in its entirety. You may be interested in my posts #304 and #310.
---------- Post added at 04:21 PM ---------- Previous post was at 04:11 PM ----------
You can get MBs on AliExpress. Here's an example:
100% Original unlocked for Samsung Galaxy Note 4 N910V Motherboard,Complete Logic Boards with Chips,for Note 4 N910V Mainboard
http://s.aliexpress.com/2Ib6faIj
(from AliExpress Android). This is for the Verizon Note 4.
But I would seriously consider sending your phone to Samsung for repair if they will do it for $100 or so. i wouldn't pay much more since last time I checked you could buy a brand new Note 4 for $300 to $350 US. I would be wary of buying a used Note 4 however since you will probably just end up with one that has a failing MB.

NicJames2378 said:
Well, the day has come. After having to replace my LG G4 four months ago due to the Bootloop issue, I am now running into a similar problem with my Verizon Galaxy Note 4. Based on research I've done, I have came to the conclusion that my eMMC memory chip is failing on me. I ran four memory tests using AndroBench, and every one of them gave me a sequential read speed between 38 and 43 megabytes.
I come to the geniuses of XDA to see if there is any way to fix this issue. Could I possibly install some software to delay it or replace the chip somehow? Perhaps a mainboard transplant from a broken device from eBay? I haven't had this phone long and I really enjoy it, so I'd hate to have to get a whole new one if this is repairable. I just don't know a whole lot about the hardware aspects and if it is possible. Thanks for the help, and let me know if there's anything else you need to know to help.
Edit: My image doesn't seem to be working for whatever reason, so here's a pseudo-link: imgur. com/a/Mq5VF
Click to expand...
Click to collapse
The only evidence you have of your eMMC failing is a low benchmark from AndroBench?

Dwillian said:
The Wakelock - CPU Awake app can help for awhile, but you will most likely need to replace the motherboard. In the US Samsung is replacing MBs for about $50 to $150 if phone is out of warranty (call 1-800-Samsung) should be free if in warranty. Otherwise you can do it yourself, but watch some you tube videos fist. The procedure is not for the faint of heart.
See this thread for more details: https://forum.xda-developers.com/note-4/help/note-4-freezing-restarting-t3348821
The thread is long, but well worth reading in its entirety. You may be interested in my posts #304 and #310.
---------- Post added at 04:21 PM ---------- Previous post was at 04:11 PM ----------
You can get MBs on AliExpress. Here's an example:
100% Original unlocked for Samsung Galaxy Note 4 N910V Motherboard,Complete Logic Boards with Chips,for Note 4 N910V Mainboard
http://s.aliexpress.com/2Ib6faIj
(from AliExpress Android). This is for the Verizon Note 4.
But I would seriously consider sending your phone to Samsung for repair if they will do it for $100 or so. i wouldn't pay much more since last time I checked you could buy a brand new Note 4 for $300 to $350 US. I would be wary of buying a used Note 4 however since you will probably just end up with one that has a failing MB.
Click to expand...
Click to collapse
Thanks for the info! I have installed WakeLock to hopefully stall the inevitable. I have a good bit of experience fixing devices like phones and tablets, so I am comfortable replacing a mainboard myself. My only big concern is the IMEI. Do you know if the phone will still be functional after simply switching the boards? I have read that the stock boards Samsung uses for replacement parts do not come with an IMEI, but instead have the old one copied over somehow. I've never used this site you mentioned so I just want to make sure it'll work as expected lol

NicJames2378 said:
Thanks for the info! I have installed WakeLock to hopefully stall the inevitable. I have a good bit of experience fixing devices like phones and tablets, so I am comfortable replacing a mainboard myself. My only big concern is the IMEI. Do you know if the phone will still be functional after simply switching the boards? I have read that the stock boards Samsung uses for replacement parts do not come with an IMEI, but instead have the old one copied over somehow. I've never used this site you mentioned so I just want to make sure it'll work as expected lol
Click to expand...
Click to collapse
I sent my phone into Samsung, so I don't know for sure what happens to the IMEI number if you put in a new MB yourself. I was told that if you buy a brand new MB that you would get a new IMEI number and as long as that number was good (e.g., not reported as stolen) the phone would work fine. Sort of like what happens if you put your SIM card into a different phone.
You may want to ask that question in the other thread I mentioned. There are a lot more knowledgeable people over there that may have experience with MB replacement.
Regarding the AliExpress website: This was the only place I could find new MBs. Everywhere else seemed to be selling used which very likely could be failing. You would be buying from Asia vendors and it will likely take a few weeks to arrive. If you go that route. Just make sure you go with a high rated vendor and read the reviews. I would also suggest paying for the Epacket delivery option. You will get your MB faster and it has better tracking. The final delivery to your shipping address will be via USPS.

Here is a 100% hardware fix for this issue that anyone can do with no tools or specia
Here is a 100% hardware fix for this issue that anyone can do with no tools or special equipment.
It really works. Give it a try. ?
https://youtu.be/jLPHWtb0StI