dead phone... or is it? - LG G7 ThinQ Questions & Answers

Welcome!
I was watching youtobe on my G7, it ran EvoX 4.7 with a custom kernel so the GPU wouldnt overclock (overclocking kernel, which was the default for this ROM had crashes in graphics intense apps/games) and it suddenly went black. It won't turn back on, neither gives any reaction after connecting it to a charger. I can smell something which reminds me of burnt plastic from the charging port. After removing the back cover, I can feel the smell through the whole phone. What could've occured? Is there any way i can tell which part is faulty or what happened? I used the underclocking kernel so it wouldn't heat up but i guess it just overheated and something burnt out.
It's a refurbished phone form Aliexpress, so I suspect one of the parts which had to be changed went off again.
I am aware that this forum is not the best place to ask this question, and if so, please redirect me to a place where it is appropiate.

Was it charging while you were watching YouTube? I've had a USB-C cord go bad before and they heat up to temperatures high enough to burn the living **** out of your finger with even the slightest touch. The cable won't get hot at all, just the port. I had a ZTE Zmax Pro that went down due to death-by-usbc.
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Do you have a wireless charger? Put it on one and see if that gets you a charge and if so, you know the charging port is fried

Thankfully it was not charging, i suspect it could have gone worse that way.
I do not own a wireless charger, but I am going to get one, thank you for the recommendation. The bad smell can be pinpointed to the charging board part of the phone, so that is very likely indeed. I hope it did not take the main board with itself.

ahanem said:
Thankfully it was not charging, i suspect it could have gone worse that way.
I do not own a wireless charger, but I am going to get one, thank you for the recommendation. The bad smell can be pinpointed to the charging board part of the phone, so that is very likely indeed. I hope it did not take the main board with itself.
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Click to collapse
check unbrick guide https://forum.xda-developers.com/lg...to-recover-hardbrick-9008-mode-boxes-t4052841

I tried the unbrick stuff too, but nothing happened, changed battery, nothing happened, so i took the boards apart and removed the ESD shields, the CPU is cooked.
I do not wonder why the LG mobile division is not doing so well. when their phones die so fast... my ZUK Z1 is still going strong.

Related

How to replace the data port

Hey guys-- got back from the t-mobile store and they told me the data port is dead (from water damage). It turns on with a fresh battery fine, but apparently I'm getting an error code. That code is probably that the data port is messed up because I can't charge my battery. I'm assuming I have to replace it. Does anyone know of a video tutorial or something that will show me how to do it?
thanks.
the chances of the data port being physically damaged by water is very slim- I think they are trying to tell you the circuitry is faulty. If you had ripped the charger out and bent or broke the port, then I could see it- but water cannot bend or break that way and corrosion is unlikely unless its been sitting a while.
Back to the original subject though, I just replaced a faulty USB port on my friends Moto Q. It wasnt bad, but you need a very small pencil iron (I use a station) and good eyes, otherwise you will bridge the tiny connections and be fubar'd.
gospeed.racer said:
the chances of the data port being physically damaged by water is very slim- I think they are trying to tell you the circuitry is faulty. If you had ripped the charger out and bent or broke the port, then I could see it- but water cannot bend or break that way and corrosion is unlikely unless its been sitting a while.
Back to the original subject though, I just replaced a faulty USB port on my friends Moto Q. It wasnt bad, but you need a very small pencil iron (I use a station) and good eyes, otherwise you will bridge the tiny connections and be fubar'd.
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Click to collapse
Where did you find the port to replace it with...
find a bricked one on ebay or something..or someone selling one with a cracked screen etc...use it for parts
welp, i've never soldered... guess you gotta learn sometime. ports are bout 25 bucks... Guess I have a new hobby. Or maybe I should just buy an external battery charger... soldering sounds more fun though. Yeah, what i meant by getting an error code is when i plug in the charging cord into the cell phone, I get a red light instead of yellow/orange. But, I have to push up on the cable where i insert it into the port to get anything. So, its not dead, but either dying or drunk....... drunk from oil.... which it swam in... and got sick from. vegetable oil, not motor oil... which would be a waste of oil. Anyways, thanks for the replies and if you stumble upon a vid for the dash, please post it. I found some on blackberries, but not an excaliber.
sorry browser problem (double posted)
my friend sourced his usb port from Mouser (P/N 538-67503-1020) for $1.12 each. I still have one (he got a spare) but I dont have a dash to take apart and compare the pins. I assume they are all the same generic port, but the pin spacing could differ
http://www.mouser.com/Search/ProductDetail.aspx?qs=7zcQ9RRVJlhHWuXYKEhKMg==
that's pretty sweet speed. I bookmarked that webpage (dunno why really). I could just always link from here; but anyway, I received a new battery that I ordered before the geniouses at t-mobile told me that a red light is an error code, my old battery is perfectly fine, my data port is broken, and no... a new battery won't fix it. *** what's my point you ask?***
They don't know jack fecal matter. I just popped in the new battery and 1) my phone turned on, 2) my charging light turned orange, 3) my plug doesn't need adjusting to charge the phone, and just now 4) my phone has signaled to my through a pretty green light that the new battery just finished charging.
So, to recap, the guys at t-mobile said my port was fried and that all my problems were due to that. My theory was that oil (and come to find out water) damage caused the battery to malfunction and thereby refused to allow a current to charge it resulting in the errors. Turns out, I was right.
Thanks speed and all for your replies. If I need a cheap miniusb port in the future, I now have a good source. Now, Anyone know if a new lcd will fix the splotchy marks on my screen (look like dark puddle spots). I'll post a pic in a new post in a minute.
Yah you can grab a new LCD off ebay (fairly cheap) and then go to youtube and youtube "fix dash screen" and there is a tutorial on there that will guide you on replacing your screen.
just make sure its the lcd thats the problem- the outer clear part that you can touch is separate, and comes with the case. Mine are scratched to hell on both my Dash's but I refuse to buy new cases to fix them
i dunno what's up anymore
I don't know what to think of this thing anymore. This morning it wouldn't turn on, even though I had the green light on the device as it was plugged in all night. So, I kept fiddling with it hoping it would turn on so I could have ATT do a remote hard reset. Well... it wouldn't cooperate. So, I left it alone. Then this evening I was about ready to bury it and I tried the power button one last time and it turned on. But, the battery was really low and I got the red light again when I plugged it in. I guess the battery got a bit of a charge in itself just sitting there. So, perhaps the t-mobile guys do know what they're talking about. Well... i did actually get the orange light while it was on for that sweet minute, which should mean its charging, but I guess its not actually charging the battery. I suppose the last way to go is external charger. I'll probably pick one up off ebay for 15 bucks.

Got a Lemon Epic 4g Touch

The phone is absolutely stunning and a definite winner. It's really sad that it seems that I may have received the lemon in the bunch. Hopefully this is an isolated issue but my phone starts having serious technical problems when attached to a charger. Screen unlock is hard to orchestrate, applications and contact lists and settings menu's open on their own and even attempt to execute their own commands. The phone is fluid and beautiful until u want to charge it and use it at the same time. I think I got a lemon. I've already processed an exchange with Wirefly and they were extremely responsive and immediate in processing my request. I tried doing a factory reset to no effect. If there are any other trouble shooting suggestions I would appreciate it. It is really a shame that this phone may be a lemon. I searched and read about similar issues with the previous epic when using an aftermarket charger. Everything came in the box with the phone here, oem. It is possible the charger may be bad but I might as well exchange all of it just in case. Could be a slight short or something that bad.
r3a1ist said:
The phone is absolutely stunning and a definite winner. It's really sad that it seems that I may have received the lemon in the bunch. Hopefully this is an isolated issue but my phone starts having serious technical problems when attached to a charger. Screen unlock is hard to orchestrate, applications and contact lists and settings menu's open on their own and even attempt to execute their own commands. The phone is fluid and beautiful until u want to charge it and use it at the same time. I think I got a lemon. I've already processed an exchange with Wirefly and they were extremely responsive and immediate in processing my request. I tried doing a factory reset to no effect. If there are any other trouble shooting suggestions I would appreciate it. It is really a shame that this phone may be a lemon. I searched and read about similar issues with the previous epic when using an aftermarket charger. Everything came in the box with the phone here, oem. It is possible the charger may be bad but I might as well exchange all of it just in case. Could be a slight short or something that bad.
Click to expand...
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Go exchange it.
nah...
look HERE
already being discussed. its a galaxy s2 bug. There are a few fixes floating arounf
Did you have Kies air running in the background?
No I've closed out the apps and it's still an issue, I've also tried a factory reset.
Known issue, common to a lot of phones. Can be fixed with software. Doesn't seem to happen over USB charging and it seems to happen much less severe the closer to 100% you are.
Not a lemon at all....it mildly annoys me.
Thank you for that link to similar issues with international GSII users. I am going to go and test it out on various outlets throughout the house. I will also try using various settings with SGS touchscreen booster from the app market. If anyone else experiences this please let me know. Honestly, after my exchange if this is an issue with the new phone as well I would still probably keep it. I should also test whether this is an issue during regular USB charging. I'll be back with the results.
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daneurysm said:
Known issue, common to a lot of phones. Can be fixed with software. Doesn't seem to happen over USB charging and it seems to happen much less severe the closer to 100% you are.
Not a lemon at all....it mildly annoys me.
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It's really really sensitive though, i mean it just goes nuts.
It's really really sensitive though, i mean it just goes nuts.
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Click to collapse
Yeah, some outlets/power systems are likely worse than others. Stick with USb charging if you don't need it charged rapidly. I've had no problems with that so far.
Problem consistent on four separate outlets at all different settings using screen booster app. USB charging does not have this problem though. I may just have a sensitive phone. It would be nice to confirm with another epic 4g touch owner though before I carry out the exchange.
My friend's E4GT had a picture in the gallery of a Best Buy employee flipping off the camera and to make matters worse, the device will not charge...
The phone is downright sick though, a long term keeper. Featherlight, it feels surreal when you first receive it with how wide, long, light and thin it is, so surreal it feels like a fake phone. So thin and long the first thing I thought was this thing looks like it could snap in half. But my first Evo came with a bad pixel too so I guess with this one I'll try again. Honestly, I'm keeping the next one no matter what.
My HTC charger actually works fine. My Samsung charger is the one causing the problem
sent from my damn EPIC TOUCH 4G!!!!
This is interesting. Here are the results with using my HTC Evo charger on it compared to it's own.
HTC Evo Charger with after market USB Cable - WORKS PERFECTLY
HTC Evo Charger with Samsung USB Cable - Moderate problems
Samsung Charger with Aftermarket USB Cable- Severe Problems
Samsung Charger with Samsung USB Cable - Severe Problems
It's own equipment is doing it. Makes no sense. Should I keep the phone and use my Evo's charger?
---------- Post added at 06:19 PM ---------- Previous post was at 06:12 PM ----------
r3a1ist said:
This is interesting. Here are the results with using my HTC Evo charger on it compared to it's own.
HTC Evo Charger with after market USB Cable - WORKS PERFECTLY
HTC Evo Charger with Samsung USB Cable - Moderate problems
Samsung Charger with Aftermarket USB Cable- Severe Problems
Samsung Charger with Samsung USB Cable - Severe Problems
It's own equipment is doing it. Makes no sense. Should I keep the phone and use my Evo's charger?
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Click to collapse
retesting, HTC Evo charger with Samsung USB cable seems to be functioning well.
The culprit seems to be samsungs charger.
i wish they would have lined that sprint one with felt.....
coming from seidio cases the non felt ones really scratched up the phones bezel so ill pass....looks like im gonna have to find a silicon one thats easy to take off
only issues i have is with the samsung charger so i just threw it in the drawer and used one of the 20 other usb chargers i have...
drksilenc said:
only issues i have is with the samsung charger so i just threw it in the drawer and used one of the 20 other usb chargers i have...
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Click to collapse
Yup did that too, threw that little sugar cube of a charger in the box. Using my HTC TP2 charger with no issues.
I've been using my old blackberry usb cable to charge mine since I've got it and I don't have that problem.. try using a different usb cable
Tapatalkin' it from my Epic Touch 3g
I notice the same random behavior with my phone when connected, but I really didn't freak out I'm just using my other charger from my first epic and problem solved,it's charging and working at the same time ;-)
Sent from my SPH-D710 using xda premium
The charger that came with this phone looks like such a piece of junk that I really refuse to use it! My photon charger has been working flawlessly on this phone.
Sent from my SPH-D710 using Tapatalk
similar weirdness here too... it wouldn't charge. had it plugged in to the wall outlet and noticed the charging light was not on. unplugged the cord..unplugged the usb part and plugged back in to no avail. then i powered off the phone then plugged it back into the wall and now it's charging. i hope this doesn't get worse. if this is it, the maybe i can deal with it. anyone else have this happen?

[not SOLVED] Phone keeps not charging!

OK... I keep having this problem where when even plugged up my phone is discharging.... Sometimes ill get lucky and it works and charges but most of the time it just starts dying and goes down to 0% so when phone accidently unplugs from charger the thing just dies and i have to try to get it to hook up without turning it on in hopes of after usually half hour trying it catches and starts charging.... Please help! Does this on any rom. Battery does not have bulge. Charger could be the culprit but i have even tried different chargers
Sent from an Apple killing JellyBean
Zince posting screenshot now down to 46% any help or even why this is doing this would be appreciated... Or a temporary fix
Sent from an Apple killing JellyBean
After opening. Xda app and posting this now down to 20
Sent from an Apple killing JellyBean
Solved! It annoys me in click work mod 6 not having battery wiping ability, but i found this great app and now it's at 21% making progress... oh now 22 idk how this fixes the charging issue but I'm not complaining. Type battery calibration in play store search and is the first option
Sent from an Apple killing JellyBean
Interesting fix
moparfreak426 said:
Solved! It annoys me in click work mod 6 not having battery wiping ability, but i found this great app and now it's at 21% making progress... oh now 22 idk how this fixes the charging issue but I'm not complaining. Type battery calibration in play store search and is the first option
Sent from an Apple killing JellyBean
Click to expand...
Click to collapse
Sounds more like a bad micro usb cable or jack to me...
or battery
I wouldn't assume charge issues are necessarily related to the OS, I would start with Cable, Battery, and then micro connector
in that order.
Well all I have is a screwy Verizon brand cable and multiple LG cables... Never had any problems until now
Sent from an Apple killing JellyBean
moparfreak426 said:
Well all I have is a screwy Verizon brand cable and multiple LG cables... Never had any problems until now
Sent from an Apple killing JellyBean
Click to expand...
Click to collapse
I guess the other thing worth checking is what is using your battery.
I've found that if I'm tethering a 4G connection and have the phone set to never sleep I don't get very good charge rates.
I think the fact that the micro usb connector has such small conductors probably bottle necks current flow, it would be interesting to see if having a high current capable power supply attached to the usb port would overcome the devices current drain, when being used heavily.
But again the internal micro usb jack is fragile, if this problem persists, I can see bad solder joints, or broken conductors being common.
I've took apart phone pushed the little pins back in the charge port not all the way but so they are even, cleaned the crap out of the charge port and it seems that might fix it
Sent from an Apple killing JellyBean
moparfreak426 said:
I've took apart phone pushed the little pins back in the charge port not all the way but so they are even, cleaned the crap out of the charge port and it seems that might fix it
Sent from an Apple killing JellyBean
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Click to collapse
well that may help, but I think my point was the actual pins that solder to the circuit board could be an issue too, but that's a trivial fix for any tech that is familiar with soldering. Or even replacing the jack, but you need to illuminate all other possibilities, if that is the issue, I'm sure you can find a repair tech to reflow some solder or replace the jack.
---------- Post added at 08:12 PM ---------- Previous post was at 08:03 PM ----------
http://www.ifixit.com/Teardown/Samsung+Epic+4G+Touch+Teardown/6481/2
You can see what the solder pins look like on this E4GT teardown.
spodemaster said:
well that may help, but I think my point was the actual pins that solder to the circuit board could be an issue too, but that's a trivial fix for any tech that is familiar with soldering. Or even replacing the jack, but you need to illuminate all other possibilities, if that is the issue, I'm sure you can find a repair tech to reflow some solder or replace the jack.
---------- Post added at 08:12 PM ---------- Previous post was at 08:03 PM ----------
http://www.ifixit.com/Teardown/Samsung+Epic+4G+Touch+Teardown/6481/2
You can see what the solder pins look like on this E4GT teardown.
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Click to collapse
I'm no stranger to soldering or replacing charge ports.... But i did that stuff on old LG env and env2 and env3s. Pretty much old verizon basic phones.... I wonder if it's the charge port... All these micro usb 2.0 charge ports look the same.....
Sent from an Apple killing JellyBean
Need a galaxy s3 preferably verizon network now but will accept any cdma models
Sent from an Apple killing JellyBean
Everytime I've experienced this issue it's been the cord. Some will charge and allow me to transfer stuff. Some will just charge and some do nothing. I stopped going cheap on em. Have had one for a year now that has never messed up. My wife has been through 3 or 4 for her Evo (HTC cord). Hit the pc section somewhere and buy em like that. Better quality and usually less expensive then one with a phone logo on it.
Hope you get it working. That's always a pain in the butt.
Sent from my SPH-D710 using xda premium
Well why is phone charging when not plugged up. Keeps bringing on the charging notification light and randomly lighting up phone every couple minutes bringing up screen to say charging or discharging
Sent from an Apple killing JellyBean
moparfreak426 said:
Well why is phone charging when not plugged up. Keeps bringing on the charging notification light and randomly lighting up phone every couple minutes bringing up screen to say charging or discharging
Sent from an Apple killing JellyBean
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Click to collapse
Must be a port issue then. Local corporate Sprint store. If its like here in Michigan less than $30 fix or phone swap. Has to be corporate store though.
Sent from my SPH-D710 using xda premium
My phone is running custom rom and its not on sprint! Lol.... I mightve found a good charge port. Soldered this one on today and it seems to be.... Functional, had to borrow my brothers lg cosmos charger to see if it worked. Dont know where mine went
Sent from an Apple killing JellyBean
Good luck man. I'm happy I am on Sprint. I've bricked mine and had it swapped out at the Corporate stores. Hell I traded my Evo in rooted with broken wimax and on nightlies. Their coverage blows but they keep me up and running.
Sent from my SPH-D710 using xda premium
They dont work where i live and i cant afford more than my 50 bucks a month right now
Sent from an Apple killing JellyBean

power/charging issue

ive been having a problem with this phone for a while. it has a problem with turning on and statying on. i will set it on charge while its powered off for atleast two hours, but as soon as i turn it on it will last for about 5 mins and turn off.
i first replaced the battery and it has the same problem. so i replaced the charging port and it was working fine for a few weeks and now its back to the same issue. i cant even get it to charge now
so just trying to figure out what kind of other components it could be
Disclaimer: You're at a more advanced level than I am. I've never done phone repair, and I don't know enough about phone hardware to say if there are other components that could be responsible. I'm a software guy.
That being said, I'll chime in with what I do know, on the off chance that it's actually helpful.
When computers get too hot, they do an automatic thermal shutdown to try to prevent permanent damage. I assume smartphones do this as well. You're on XDA, so there's a good chance you like to tinker. Did you overclock the phone? Overclocking generates more heat, which could potentially lead to a thermal shutdown or permanent damage. Or you might be using or storing the phone in a hot environment.
Have you tried using a different charging cable? Maybe the cable or its connector went bad. You could also test the cable with a different device. Maybe the wall outlet, etc went bad. Did you check the connectors that the battery attaches to, to make sure they're clean?
When you opened the phone to replace the charging port, maybe you didn't put it together quite right, so over time something came loose or got pinched. Desktops and laptops use various types of adhesives such as thermal paste, and computer technicians have to remember to reapply new adhesive when putting a machine back together. Maybe phones use some adhesive too, and maybe you forgot to reapply it?
Hopefully someone more knowledgeable about phone hardware will chime in, but the Incredible 2 section of these forums has been a ghost town lately. That's why I'm giving my two cents. If it were me, I'd just buy a new phone.
Slinkwyde said:
Disclaimer: You're at a more advanced level than I am. I've never done phone repair, and I don't know enough about phone hardware to say if there are other components that could be responsible. I'm a software guy.
That being said, I'll chime in with what I do know, on the off chance that it's actually helpful.
When computers get too hot, they do an automatic thermal shutdown to try to prevent permanent damage. I assume smartphones do this as well. You're on XDA, so there's a good chance you like to tinker. Did you overclock the phone? Overclocking generates more heat, which could potentially lead to a thermal shutdown or permanent damage. Or you might be using or storing the phone in a hot environment.
Have you tried using a different charging cable? Maybe the cable or its connector went bad. You could also test the cable with a different device. Maybe the wall outlet, etc went bad. Did you check the connectors that the battery attaches to, to make sure they're clean?
When you opened the phone to replace the charging port, maybe you didn't put it together quite right, so over time something came loose or got pinched. Desktops and laptops use various types of adhesives such as thermal paste, and computer technicians have to remember to reapply new adhesive when putting a machine back together. Maybe phones use some adhesive too, and maybe you forgot to reapply it?
Hopefully someone more knowledgeable about phone hardware will chime in, but the Incredible 2 section of these forums has been a ghost town lately. That's why I'm giving my two cents. If it were me, I'd just buy a new phone.
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Click to collapse
well i greatly appreciate your lengthly response. to be honest, it is my mothers phone, which is why i want to try and fix it. i gave her an iphone so she really doesnt need this phone but i would like to figure out what is wrong because i do like to tinker with things. i have tried different chords, wall outlets, usb ports on the pc etc. i will reopen the phone to see if everything is back together, because thats the only thing i can think of from what you mentioned.
thanks again. if anyone has had a similar problem, let me know
sounds like you're either having a battery issue or need to replace your charge port on your phone. its a really simple process all you do is order the port from like amazon or ebay and the old one on your phone just unplugs from your phone circuit board there actually is a tutorial forum in the development page for the droid incredible 2 that gives you instructions on how to do this. hope this was of some help to you and if so please click thanks.
jam0688 said:
sounds like you're either having a battery issue or need to replace your charge port on your phone. its a really simple process all you do is order the port from like amazon or ebay and the old one on your phone just unplugs from your phone circuit board there actually is a tutorial forum in the development page for the droid incredible 2 that gives you instructions on how to do this. hope this was of some help to you and if so please click thanks.
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Click to collapse
The OP already tried both of those things.
Oh ok yeah i just noticed where he put that. Hardware problem maybe. Im more into software myself than i am hardware.
MINE TOO! Omg
This... it's too much. Okay, a month ago the damned power button got too hard to press in, which should have been a warning that the hardware was getting faulty I suppose. But I downloaded an app that let me use the volume button to turn screen on/off. (I won't say which because I half-blame it, unfairly, for killing my phone
(Sorry, I'm still —mourning! the death of my phone I guess.)
The app was an ugly solution, I guess, but it worked. (I couldn't turn the screen off easily, so I set the screen-off to 10 seconds.) And I hadn't used screenshots in a while so that was no big deal; and my ROM could get me to Recovery easily enough, so screw the power button, right?
But then last night, my phone STOPPED CHARGING! I did a batt pull, tried new cords; turned off every useful app. I even went back to stock ROM, which (even though plugged in) left me with 20% batt. Might as well have bricked it, I guess.
Nothing worked. I was able to turn bluetooth back on so I could use my Air Droid acct to get my on-phone pictures, at least (everything else is safe on the SD), and then I charged it overnight in the wall and hoped for the best.
I was pretty thrilled to wake up to 100% charged! —For a few minutes. As soon as I unplugged it, it started discharging fast, and then not even the wall charger stopped it from discharging.
After brooding, for a few hours, I called Verizon tech. The tech (VERY nice, admittedly) said my Dinc2 was just dead. (Damn they're good: he was more sympathetic than a doctor delivering bad news!!) —But I feel so lost. He offered me a DNA or a Dinc 4G (and some motos and crap), but said my Dinc2 wouldn't be worth fixing. He said the power button alone was a PITA, but the dongle thing you plug the charger into was likely the problem, AND it might be the battery. Maybe he said other problems, but ultimately he suggested some pre-owneds he had for sale (I'm trying to keep my unlimited data plan), or try PhoneKarma.com. (He said he didn't recommend eBay, where they have Dinc 2s, but I'm not sure why.)
So ...do Dinc2s just have power issues after (?) 3 years? I guess that's a pretty good lifetime, but boy is it depressing. (I know — hooked on a damned phone. #Sucks.) I mean, it would be stupid to fix this one, or buy another one, right?
@Trebuchette, no matter what machine you use, rechargeable batteries do not last forever. Order a new battery from Amazon or eBay and you should be fine. They're pretty cheap and easy to replace. http://www.amazon.com/HTC-Incredible-6350-BTR6350B-Packaging/dp/B0064SI3QA
A case might make your power button easier to press. The OtterBox Defender is an excellent case that you can get for $15 used (very good condition), if a new battery successfully fixes your problem.
Hey: might be worth a shot! I did try another batt, but it was older too. And I didn't think of an otterbox at all, tbh. Thanks! Might be worth a try!
Hey: does it matter much if my USB cable is LG or whatever? I tried several different USBs too, but I'd been using this LG one (no idea how!) for probably about a year.
No, the brand of micro USB cable should not matter. It's a technical standard.
Don't buy a case until you've verified that a new battery actually fixes your problem. If a battery doesn't fix it, it's only a few bucks lost. In that case, I would then get a new phone.
i just came back to this thread after i basically put the project on hold for a while and wanted to see any new suggestions. so after leaving the phone alone for two months, i pluuged the phone in and i saw that orange ligh indicating it was charging. so far so good, im not using it as a primary phone which is good, but that would be my suggestion is to give the phone a rest for a while
EDIT: yeah scratch that, its doing the same **** now

heads up, top tip

Samsung Tab S 8.4, bought about 3 months ago in uk from john lewis.
I had kitkat and rooted to be able to disable bloat etc to try and increase the battery life. Battery was still draining much faster than other devices, but in accordande to what a lot of people were reporting. Got used to charging it up every day.
So I got the official lollipop update, using kies, and left as stock was seeing same ballpark battery draining. Before I could get around to modifying the lollipop build the tablet started restarting. At first this was when the battery level would drop below 50% but quickly this turned into repeating boot loops. I was careful to try and be gentle with it in case the battery connection was loose, but the boot loops got quicker. In the end it would not stay on.
Here is how I fixed it. Tried factory reset, no good. But at least knew it wasnt software as had default lollipop image, plus it worked find when connected to the charger. So I didint have time to send it in to samsung for repair as due to travel, so used you tube help to open the cover and simply removed and disconnected the battery, then replaced it. Note that the battery is lightly glued in, so needs some light force to peel it out of the cavity - thats not shown on you tube.
Anyway, checked it didnt boot loop, and it was stable, so charged it up fully. Guess what? I have a much much slower draining battery now. I have manually reloaded my apps from play store (not a kies restore) and performance is the same ie the slower than original battery drain.
I don't know if they modified something between lollipop and kitkat that needed to see a hard reset to trigger or if its something peculiar to the battery requiring to be disconnected independent of the operating system, but just wanted to share and report here as this forum has been so helpful to me.
I am in UK (for lollipop version)
Refitting the battery might make the tablet think it is getting an new battery so it is forced to do an re-calibrate.
Yesterday a owner said when he took is S to a Samsung service centre, he was told the battery connectors were fault, and they replaced it with a more heavy duty version.
Also he was told upgrading to lollipop can cause problems, though i don't see how that is possible.
John.
Tinderbox (UK) said:
Refitting the battery might make the tablet think it is getting an new battery so it is forced to do an re-calibrate.
Yesterday a owner said when he took is S to a Samsung service centre, he was told the battery connectors were fault, and they replaced it with a more heavy duty version.
Also he was told upgrading to lollipop can cause problems, though i don't see how that is possible.
John.
Click to expand...
Click to collapse
Makes sense on battery recalibration from disconnect, but would that affect the lower drainage rate? Maybe lollipop is better optimized for the 8.4?
I just now turned on power saving, where it was on before with kitkat. Still much more time on standard lollipop than kitkat here. Not going to bother debloating it...
Yesterday and today, owners of the 8.4" have reported problems with the battery connector, on repair Samsung replaces the original with an more heavy duty version, some people recommend soldering the battery directly to the motherboard, (not me)
John.
Tinderbox (UK) said:
Yesterday and today, owners of the 8.4" have reported problems with the battery connector, on repair Samsung replaces the original with an more heavy duty version, some people recommend soldering the battery directly to the motherboard, (not me)
John.
Click to expand...
Click to collapse
Nothing is more heavy duty battery connector, they all are the same. Repair center just do a re solder job as this battery connector is prone to crack in most of Samsung tablets.
Read all Samsung tablets, different models and sizes, they all have the same problem but most average users are not able to see it, they need microscope at least at 20X to 40X to see the cracks. Magnified glass at 10X won't be able to see this kind of crack of solder joints.
Well i suppose the owner was lied too by Samsung, as he says in the link below that they installed an thicker connector.
She confirmed that there is indeed a problem for tab S battery connector that comes out of the box when you purchase tab S. The connector is too thin and is very easy to fail even from slightly touching the screen. So she took my tab s for an hour, replaced the battery connector with a new one which she claimed to be thicker, and reinstalled the May lollipop update. Since then I have never had any problem, and my battery performance is very satisfying.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=61977890&postcount=509
John.
Beut said:
Nothing is more heavy duty battery connector, they all are the same. Repair center just do a re solder job as this battery connector is prone to crack in most of Samsung tablets.
Read all Samsung tablets, different models and sizes, they all have the same problem but most average users are not able to see it, they need microscope at least at 20X to 40X to see the cracks. Magnified glass at 10X won't be able to see this kind of crack of solder joints.
Click to expand...
Click to collapse
5310 said:
Here is how I fixed it. Tried factory reset, no good. But at least knew it wasnt software as had default lollipop image, plus it worked find when connected to the charger. So I didint have time to send it in to samsung for repair as due to travel, so used you tube help to open the cover and simply removed and disconnected the battery, then replaced it. Note that the battery is lightly glued in, so needs some light force to peel it out of the cavity - thats not shown on you tube.
Anyway, checked it didnt boot loop, and it was stable, so charged it up fully. Guess what? I have a much much slower draining battery now. I have manually reloaded my apps from play store (not a kies restore) and performance is the same ie the slower than original battery drain.
I am in UK (for lollipop version)
Click to expand...
Click to collapse
A permanent fix : re solder the battery connector.
A temporary fix : put a thick piece of paper on top of the battery connector, secure it with a tape. A direct pressure on the back cover will temporary close the gaps of cracked solders. This temporary fix only works with a not badly cracked battery connector. A badly cracked one is the connector that you can lift it off the main board easily or tap hard on the back cover, your tablet shuts down immediately.
I tend to agree, it's unlikely they did anything but resolder. If it's happened on previous devices why would they still be using the same connector if they had a beefed up version?
In any case the connector is non mobile so it makes no difference as long as its securely soldered it should be fine.
There are much flimsier components and connectors in devices nowadays that don't give issue.
The connector to the circuit board looked beefy enough and it didn't feel loose in any way....its the female socket soldered onto the circuit board that you all are describing?
I'll keep an eye out of course, but so far same great performance, much better than when out of the box new
5310 said:
The connector to the circuit board looked beefy enough and it didn't feel loose in any way....its the female socket soldered onto the circuit board that you all are describing?
I'll keep an eye out of course, but so far same great performance, much better than when out of the box new
Click to expand...
Click to collapse
This is the connector I'm talking about, not exactly, but common in Samsung tablets. Some look perfect from the top but it moves slightly if pushing. I'm already to re solder so I'm not afraid to push or lift it from main board to test its solder joints. Most of erratically behaviors related to power such as shut down, auto restart, battery capacity fluctuation, quick discharge, I know most come from this cracked connector and successful to fix the problem by re solder it.
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Most of this problem is seen in Samsung tablets which have battery connector at the center of the tablet, the bigger the tablet, the more likely it has this problem like 10 inches or bigger. Samsung tablets are so simple in assembly, like the Galaxy Note Pro 12.2 inches, the main board has only 3 screws to hold it to the frame. If putting a finger on the battery connector, you can feel it move up and down easily on top of the LCD.
I have the same issue, this red circled chip keeps on heating, even when I turn it off. I suspect this might have something to do with my battery draining... can anyone help?
Imgur.com/3NLqmh5
How fast is your battery draining when your tablet is in sleep mode overnight.
John.
ozaq1 said:
I have the same issue, this red circled chip keeps on heating, even when I turn it off. I suspect this might have something to do with my battery draining... can anyone help?
Imgur.com/3NLqmh5
Click to expand...
Click to collapse
Tinderbox (UK) said:
How fast is your battery draining when your tablet is in sleep mode overnight.
John.
Click to expand...
Click to collapse
Measured mulltiple ttimes. 5% approx. Very consistent drain. Even when shut off. (Completely off)
Drain only stops when i remove battery from mobo.
Your battery should take months to become empty when your tablet is completely turned off, Sorry but It sound like you have a fault on your motherboard.
John.
ozaq1 said:
Measured mulltiple ttimes. 5% approx. Very consistent drain. Even when shut off. (Completely off)
Drain only stops when i remove battery from mobo.
Click to expand...
Click to collapse
Hahahah. Fml.
Maybe its a problem with the battery connector?
More diagnostic info: once i disconnect the battery from the motherboard, and reconnect, the tablet will not turn on until i plug in the wall charger. Once i plug it in, the tablet turns on fine.
Did you have a look at the circled chip? Any idea what that is?
---------- Post added at 09:13 PM ---------- Previous post was at 09:11 PM ----------
Tinderbox (UK) said:
Your battery should take months to become empty when your tablet is completely turned off, Sorry but It sound like you have a fault on your motherboard.
John.
Click to expand...
Click to collapse
Hahahah. Fml.*
Maybe its a problem with the battery connector?
More diagnostic info: once i disconnect the battery from the motherboard, and reconnect, the tablet will not turn on until i plug in the wall charger. Once i plug it in, the tablet turns on fine.
Did you have a look at the circled chip? Any idea what that is?
I google for any tear-downs of Samsung tablets, but none of them identify the shielded component you circled, but as it`s so close to the battery connector it could be a power management chip, but that is a guess.
John.
ozaq1 said:
Hahahah. Fml.
Maybe its a problem with the battery connector?
More diagnostic info: once i disconnect the battery from the motherboard, and reconnect, the tablet will not turn on until i plug in the wall charger. Once i plug it in, the tablet turns on fine.
Did you have a look at the circled chip? Any idea what that is?
---------- Post added at 09:13 PM ---------- Previous post was at 09:11 PM ----------
Hahahah. Fml.*
Maybe its a problem with the battery connector?
More diagnostic info: once i disconnect the battery from the motherboard, and reconnect, the tablet will not turn on until i plug in the wall charger. Once i plug it in, the tablet turns on fine.
Did you have a look at the circled chip? Any idea what that is?
Click to expand...
Click to collapse
---------- Post added at 10:20 PM ---------- Previous post was at 10:17 PM ----------
To rule out the battery connector you could have the battery soldered direct to the motherboard.
John.
Tinderbox (UK) said:
I google for any tear-downs of Samsung tablets, but none of them identify the shielded component you circled, but as it`s so close to the battery connector it could be a power management chip, but that is a guess.
John.
---------- Post added at 10:20 PM ---------- Previous post was at 10:17 PM ----------
To rule out the battery connector you could have the battery soldered direct to the motherboard.
John.
Click to expand...
Click to collapse
Thanks, ill try to have a new connector soldered. Appreciate you trying to help.
But you saying your tablet will not boot without the USB power adapter connected, indicates a power problem, likely a battery connection or that chip that you said was warm even when the tablet is turned off.
All you can do is start with the easiest to fix, which is the battery connector.
John
ozaq1 said:
Thanks, ill try to have a new connector soldered. Appreciate you trying to help.
Click to expand...
Click to collapse
You should do one by one to solve a problem with many unknowns: battery connector, battery, or main board.
The first priority is to re solder the battery connector to see any improvement. You will confuse yourselves and others when trying to figure out many things at the same time. The key in troubleshooting is elimination method: solve each unknown one at a time. You cannot find any component of main board on the market, don't think about new battery connector because you'll never find one, but new one is not necessary as re solder is sufficient to solve battery quick discharge problem.
I was the one who recommended to solder tha battery directly to the board. I was having issues with kitkat when i bought my tab last year. Battery drains so much that it will shut itself off. But when you reboot. It will go back to at least 40%. Resetting the battery by unplugging-plugging the battery to the board seems to resolve the issue that i got bored doing it thats why i slder the battery terminals to the board. after upgrading to lollipop. I was able to drain use my phone up to 1%. Battery drain overnight in idle is 1-2%. Im a heavy user, and it lasts me 1 and a half days
Battery soldering is not for the faint hearted. I only recommend it to those who knew what they're doing as those terminals are so small that one mistake could short your board and fry it instantly

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