Develop Bugs

Phone won't charge or connect to USB, but constantly says its connected.

Having some issues with my ET4G here, not really sure how it happened. My phone went into random bootloops earlier today after pulling it off the charger in the morning. I finally was able to get it booted up but the notification light continued to stay red and it basically thinks there is a USB cable connected to it. When plugged into a pc or charger it does not charge or mount into odin. I've got the thing booted into odin mode now and plugged in, but odin just isn't seeing it. Both sprint and sammy both said they have NEVER heard of this issue, I don't know if I believe it. I have a replacement on the way (when I brought it to the sprint store the tech cracked the screen putting it back together so they are replacing it for me) but I'd like to get it atleast half working for the weekend. Any help would be appreciated!
Edit: I forgot to mention that when I put a battery in the phone, it automatically boots up. Sometimes it is successful, but sometimes it just loops at the screen you get when you charge your phone while powered off (note the phone is unlpugged!!!) Pretty weird symptom, but I know the phone doesn't normally boot itself up when a battery is put in it.

i see this alot with the samsung replenish...my theory is youve been using an off brand charger and its made the pin inside the charging port crank up at an angle, making the device think its always plugged in
i fix the replenish's easy enough by taking some tweezers and bending the little pin inside the port back down, works everytime
im a tech at an indirect store fwiw

kurtiskobain said:
i see this alot with the samsung replenish...my theory is youve been using an off brand charger and its made the pin inside the charging port crank up at an angle, making the device think its always plugged in
i fix the replenish's easy enough by taking some tweezers and bending the little pin inside the port back down, works everytime
im a tech at an indirect store fwiw
Click to expand...
Click to collapse
This sounds highly possible. Also try pulling your sd card to see if that makes any difference.

Looking inside the charger port it doesn't look like anything is out of sorts. A little corrosion from humid weather and working outdoors but never any water damage. I'm looking at the inside of my phones port right now and all the gold strips are at the same level, and the cable seems to click in just fine. Am I missing something? And yeah for the record I have like 4 different USB cables I use and they are all different brands. Let me know if I should be looking for something else, or if you guys have any other input. I was able to get it to mount before I left for the sprint store, pushed a stock setup and older modem so they wouldn't question anything, but now it's just completely not connecting. Also, when I was able to mount it earlier, it would not charge but was atleast recognized by odin. When the sprint tech had my phone apart I saw the charger port myself it didn't look to have any physical damage to it...such a weird issue!

DataHawg said:
This sounds highly possible. Also try pulling your sd card to see if that makes any difference.
Click to expand...
Click to collapse
Yeah pulled the SD card as well. Tried most of the typical stuff but please mention anything "obvious" sounding anyway cause at this point I'd be willing to try double backflips to get the thing working.

kurtiskobain said:
i see this alot with the samsung replenish...my theory is youve been using an off brand charger and its made the pin inside the charging port crank up at an angle, making the device think its always plugged in
i fix the replenish's easy enough by taking some tweezers and bending the little pin inside the port back down, works everytime
im a tech at an indirect store fwiw
Click to expand...
Click to collapse
You're referring to the 5 gold strips on the topside of the port on my phone, correct? I mean that's what I assumed but if I'm wrong or there are pins I'm unaware of let me know.

if everything is a go, you might consider trying a hard reset
---------- Post added at 07:17 PM ---------- Previous post was at 07:16 PM ----------
vadyr56 said:
You're referring to the 5 gold strips on the topside of the port on my phone, correct? I mean that's what I assumed but if I'm wrong or there are pins I'm unaware of let me know.
Click to expand...
Click to collapse
pin is probably the wrong term, but im referring to the thing sticking out in the middle of the port...is it slanted upwards? thats what happens to all these repl

kurtiskobain said:
if everything is a go, you might consider trying a hard reset
---------- Post added at 07:17 PM ---------- Previous post was at 07:16 PM ----------
pin is probably the wrong term, but im referring to the thing sticking out in the middle of the port...is it slanted upwards? thats what happens to all these repl
Click to expand...
Click to collapse
The plastic housing or harness seems to be parallel to the screen, maybe slightly downward. And the little gold strips on top of the housing all seem to be flat.
A hard reset? I've tried wiping this thing a million times if that's what you mean by hard reset. Driving me crazy!

hmm seems youv worn your options down...ill tell you what, if you live in MI, come visit me in clinton township and ill either fix it or replace it, and can have you in and out in 15 minutes...if not, take it to the nearest repair center and theyll take care of you. if they dont, give me their number and ill call them and make them!!

kurtiskobain said:
hmm seems youv worn your options down...ill tell you what, if you live in MI, come visit me in clinton township and ill either fix it or replace it, and can have you in and out in 15 minutes...if not, take it to the nearest repair center and theyll take care of you. if they dont, give me their number and ill call them and make them!!
Click to expand...
Click to collapse
Haha yeah I don't think theres much I can do. I'm pretty sure its software related, when the phone is not in odin mode, it sits there and mounts/unmounts itself on my pc but always as an "unrecognizable device" and I have reinstalled the drivers twice. I have a replacement coming already, just don't feel like going through the weekend without a phone (gosh saying that sounds terrible!) but lets be realistic here, cell phones are almost necessary today, especially being someone who's constantly taking calls from customers!

[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
Click to expand...
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.
Click to expand...
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
Click to expand...
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

[Q] Phone not charging?

I have Samsung Galaxy Grand running stock rom with no root & other modifications. Phone is running smoothly, but since yesterday, I am facing a strange problem. The Samsung Voice starts randomly while using a phone & since today, phone has stopped charging altogether. I have tried four different Samsung original chargers with no luck.
What may be the problem? Phone doesn't have any physical damage & is in pristine condition. Weather is really humid due to heavy torrential rain. Can humidity cause such problem?

drshreenivaas said:
I have Samsung Galaxy Grand running stock rom with no root & other modifications. Phone is running smoothly, but since yesterday, I am facing a strange problem. The Samsung Voice starts randomly while using a phone & since today, phone has stopped charging altogether. I have tried four different Samsung original chargers with no luck.
What may be the problem? Phone doesn't have any physical damage & is in pristine condition. Weather is really humid due to heavy torrential rain. Can humidity cause such problem?
Click to expand...
Click to collapse
Clean your usb port and try again... Try to use different socket..
Sent from my GT-I9082

No charging despite cleaning of port.
Seems phone needs visit to service centre.
Sent from my GT-I9001 using Tapatalk 2

drshreenivaas said:
No charging despite cleaning of port.
Seems phone needs visit to service centre.
Sent from my GT-I9001 using Tapatalk 2
Click to expand...
Click to collapse
if u have rooted your phone.then u have unroot it and then go to service centre :good:
Press Thanks if you like my Work/Advice

Finally I had to change charging socket @ service centre.
Sent from my GT-I9082 using Tapatalk 2

What is the price to change work with charging socket in UK?. I am also facing the same problem from last night.
---------- Post added at 12:41 PM ---------- Previous post was at 12:37 PM ----------
How much will be charged for charging socket problem? How much will i have to pay to change the charging port?

The only solution I can see is to get it repaired.

[FIX] "screen flicker, screen freezes, and random restarts with low battery" SMT700

[FIX] "screen flicker, screen freezes, and random restarts with low battery" SMT700
When The Crashes happen: Usually the tablet will crash on Google chrome When the Battery is below 60% and around 15% it will simply crash on the lock screen.
People say the fix for this is to Re solder the battery clip or give it to Samsung to fix
Well I did find a fix But you need ROOT Access
How to fix. First you will need to get a app called Kernal Adiutor. (Link https://play.google.com/store/apps/details?id=com.grarak.kerneladiutor&hl=en )
Once this is installed You will want to open it and set these values (If you find more stable values tell me and i will edit them here)
Under CPU: (Minimum Frequency: 200MHz) (Maximum Frequency : 1100MHz (Most stable) or 1900MHz (Unstable)) (CPU Governor: Power save) (multi core power saving: Aggressive)
Under I/O Scheduler: (Scheduler: fiops or zen) (Read Ahead : 4096kB)
Under Entropy: (Read: 128) (Write: 512)
Feel free to post better values in the comments
I hope this helps!
Contact me on Kik @ Ravekek

bump

zalso said:
bump
Click to expand...
Click to collapse
boop

I have have the same issue but on the 705 under cpu Governor i have of those settings only ondemand, userspace and interactive...
also on i/o i only have noop, deadline or cfq.... any recomendations as to which i should use would be helpfull

I don't know about this app helping with this problem. But one thing is sure. Taking off the back cover of the tablet(cleaning the antenna contacts) and unplug/replug the battery helps. After this process the battery holds longer.
Sent from my SM-T705 using XDA Free mobile app

I had this problems (random reboot, screen freeze and crazy screen flickers with bright flash bars), which occured when it had low battery (below 40%).
I removed the back cover with a guitar pick, unplugged the battery, waited a couple of minutes and put everything back together again.
Until now zero problems, longer battery than ever... So I believe in most cases there's no need to spend any money or send it to RMA.

If you are having these issues, check to see if you have "Turn off hardware overlays" enabled in developer options. If so, disable it. This worked for me and was the only difference between my current Tab S and my old Tab S before it died.
Sent from my SM-T700 using Tapatalk

Just have service center change your battery and check its connection.
I have it changed within 3 months after got it bcoz of said problems & everything is fine since till now....
Its been almost a year & the tab's still OK.
---------- Post added at 10:48 AM ---------- Previous post was at 10:47 AM ----------
noxarcana said:
If you are having these issues, check to see if you have "Turn off hardware overlays" enabled in developer options. If so, disable it. This worked for me and was the only difference between my current Tab S and my old Tab S before it died.
Sent from my SM-T700 using Tapatalk
Click to expand...
Click to collapse
what happened to your old Tab S?

Crescendo Xenomorph said:
Just have service center change your battery and check its connection.
I have it changed within 3 months after got it bcoz of said problems & everything is fine since till now....
Its been almost a year & the tab's still OK.
---------- Post added at 10:48 AM ---------- Previous post was at 10:47 AM ----------
what happened to your old Tab S?
Click to expand...
Click to collapse
Hairline fracture in the display causing the screen to have a permanent green/yellow tint. If I grabbed the top left and bottom right corners and bent the tablet inward at the center of the display, it would go back to normal. Burn in started to become an issue as well due to the damage done. Technically it didn't die. It was just cheaper to buy a new one so I did and gave the old one to a friend.

I also had flickering and restarts. Removing the battery and plugging it back in fixed it for me.

lunareclipse said:
I also had flickering and restarts. Removing the battery and plugging it back in fixed it for me.
Click to expand...
Click to collapse
Same here it got so bad I couldn't even use my tablet. I cleaned out the battery connectors with rubbing alcohol and firmly reconnected them. I used not be able to get below 20% battery without the tablet rebooting like crazy and screen getting glitchy. Today I finally was able to completely kill the battery without a single glitch or reboot.
Sent from my iPod touch using Tapatalk

Crescendo Xenomorph said:
Just have service center change your battery and check its connection.
I have it changed bcoz of said problems & everything is fine since till now....
Click to expand...
Click to collapse
Same here. Battery changed under warranty and now everything is fine.
Sent from my Moto X Force using Tapatalk

So, which metod is the best?

XxReApErxX said:
So, which metod is the best?
Click to expand...
Click to collapse
Unplugging and replugging in the battery for permanent fix but requires you to open the case

So just as simple as that? I´ll give it a try.

Exact same problem with my T800. Just straight death the second it hits 58%. however, turning on stock power saving mode (along the same lines as OP) did the trick for me. Not a single crash since then, with both Loli and MM. Also downloaded kernal adiutor and ran it ontop of powersaving mode to overclock\undo the horrendusly slow state. Meh sounds counterintuitive but it worked.

i tried opening the covere method it worked for me but the problem keeps returning after 3-4 months.

OK, I think I'm having a similar problem. I replaced the original battery a couple of months ago and everything was good for a while. For the last 2 weeks, I've started having a problem where the tab works ok when it's fully charged, but when it gets down somewhere below about 65%, the tablet will sometimes just turn off without a warning. When it does turn off, the only way to restart it is to briefly plug it into a power source. You only have to plug it in for a few seconds, but when you do, you can turn it on again. If you don't plug it into a power source briefly it simply won't start at all.
Once you get it started again, it will run for a few more minutes, before it again fails without warning. Once it starts doing this, the time it stays on gets shorter and shorter until you recharge it completely.
Yesterday, I got a second replacement battery to see if that would make a difference, but it behaves just like the first one. I tried unplugging and replugging the battery connector, but it seems to be firmly plugged in and doing that doesn't help.
I'm thinking that it could be firmware corruption problem, so I'm thinking that I will do a factory reset, reformat, reinstall, etc. That's a real pain and I'm not confident that will fix it. Does anybody have any thoughts or suggestions?

The original battery in my Tab S finally died after holding on for 7 years with the annoying green flickering, but fixed it temporarily by unplug and plugging it back in , changing the battery solved it , got replacement battery on February 2021 , 6 months in and the problem is slowly starting to come back , i might consider soldering and strengthening the battery connector like most other forums and answers i found so far after extensive research..

Diagnosing soon-to-be-bootlooped phones

Looks like somebody on Reddit had a talk with one LG representative in which he described a method to diagnose if your 5X is about to get bootlooped.
The procedure as follows:
Turn your phone off, or let the battery discharge completely (which I personally recommend);
With the phone off, plug in the wall charger.
If your phone only displays the battery icon and starts charging, you're good. But, if your phone starts to boots up -- displays the Google logo and starts the boot animation -- expect your phone to brick soon.
Also, the manufacturing date seems to have a role in this case as well, looks like most bootlooped phones have been manufactured in October of 2015. I have a H791 manufactured in November 30th 2015 with no problems so far -- I've dropped the phone a few times (with the case), used the advanced governor tweaks, overclocked, applied thermal tweaks, rooted and restored the phone a dozen without any issues so far.

Mine is october 2015, 791. System modified, rooted, overclocked, a lot of fashing mods. Still works without aby issues.
When I plug device to charger, It show battery icon.

Holysh*t. Mine is 791, manufactured Oct 2015. And I always let my battery discharge to zero before I plug it in. I notice that sometimes it boots up and sometimes it doesn't.

my serial starts with 511 so its Nov 2015.. I was going to root my phone until I read about the boot loop plague think its safe to?
arvinsheet said:
I always let my battery discharge to zero before I plug it in.
Click to expand...
Click to collapse
thats bad for the battery mate plug it in around the 30% mark

What if every 5X hardware eventually degrades with time, someone whose phone is not booting today might boot up one day in future while charging, and eventually end up bootlooping.

Lol mine's H791, bought January 2016 and it died 1 week and a half days ago, never tried any other ROMs except being stock itself and occasionally changing kernels and recovery, also I never remember anything it boots up after charging my phone being discharged completely

Aman301582 said:
What if every 5X hardware eventually degrades with time, someone whose phone is not booting today might boot up one day in future while charging, and eventually end up bootlooping.
Click to expand...
Click to collapse
Unlikely, since not all 5X's are affected by this. Besides any manufacturing issue (the bootloop cause), specific material characteristics (like the normal wear and tear of lithium batteries) or environment, electronics won't degrade up to this level in the medium term.
The charging boot up is only a symptom that something wrong is already going on. LG said that the bootloop is caused by loose components, which can get worse over time by physical stress (see the iPhone 6 touch sickness) or heat.
So, the perfectly assembled 5X's will not get bootlooped and should last a long time.

arvinsheet said:
Holysh*t. Mine is 791, manufactured Oct 2015. And I always let my battery discharge to zero before I plug it in. I notice that sometimes it boots up and sometimes it doesn't.
Click to expand...
Click to collapse
damn the used one i just bought for the board is a 10-15 manufacture date...smh
---------- Post added at 03:15 AM ---------- Previous post was at 03:09 AM ----------
neilc300 said:
damn the used one i just bought for the board is a 10-15 manufacture date...smh
Click to expand...
Click to collapse
and i now know that my problem child "deceased" was also a 10-15 manu. date
---------- Post added at 03:27 AM ---------- Previous post was at 03:15 AM ----------
yhn said:
Unlikely, since not all 5X's are affected by this. Besides any manufacturing issue (the bootloop cause), specific material characteristics (like the normal wear and tear of lithium batteries) or environment, electronics won't degrade up to this level in the medium term.
The charging boot up is only a symptom that something wrong is already going on. LG said that the bootloop is caused by loose components, which can get worse over time by physical stress (see the iPhone 6 touch sickness) or heat.
So, the perfectly assembled 5X's will not get bootlooped and should last a long time.
Click to expand...
Click to collapse
think it is safe to assume that whatever happens causes the battery to no longer have the ability to charge, on my first 5x the dead one soon as i got it (used) I was iffy about the battery and if it was charging or not I would see charging animation and then other times I wouldn't. I bought a brand new battery off ebay before attempting the FRP removal, just seemed like a smart thing to do, used phone and all, but by the time the phone passed away it managed to fry the new battery as well, I went to use it in the rebuilt from two broken and it would not charge...imagine that

i think there should be something (a tool?) official to diagnose. So anyone can legally ask for a replacement. But i guess that is the same reason we dont have already it
Anyway thanks for the infos, glad to have at least something!

neilc300 said:
damn the used one i just bought for the board is a 10-15 manufacture date...smh
---------- Post added at 03:15 AM ---------- Previous post was at 03:09 AM ----------
and i now know that my problem child "deceased" was also a 10-15 manu. date
---------- Post added at 03:27 AM ---------- Previous post was at 03:15 AM ----------
think it is safe to assume that whatever happens causes the battery to no longer have the ability to charge, on my first 5x the dead one soon as i got it (used) I was iffy about the battery and if it was charging or not I would see charging animation and then other times I wouldn't. I bought a brand new battery off ebay before attempting the FRP removal, just seemed like a smart thing to do, used phone and all, but by the time the phone passed away it managed to fry the new battery as well, I went to use it in the rebuilt from two broken and it would not charge...imagine that
Click to expand...
Click to collapse
Forget about it, mine bootlooped last week.

For the last 2-3 weeks before my 5x died.. i noticed that restoring a twrp backup was miss and hit, it would(or not) miss some apps or similar..like it didn't restore 100%.
Another thing that i noticed is that when i copy for example some rom.zip or any zip bigger than 400MB on to the internal sd, it would get corrupted, it would change md5sum.
BUT if i reboot the phone and copy the zip on the phone immediately after booting, then it won't get corrupted.
Im not sure if this is directly related to this issue, but it looks like it does.

Guys going to buy two nexus 5x phones , can someone tell me how to accurately check the model number and which model is safe to buy and how to diagnose the phone of boot loop future?