Portable charger not able to charge my OPO - ONE Q&A, Help & Troubleshooting

Hey guys,
I'm having an odd issue. I have an anker astroslim 2 which I love and has done a phenomenal job charging my previous phones without any issues. However, Whenever I plug in the OPO, it charges for a minute or two and then stops charging. I know the charger has power and works fine as it charges my tablet without any issues, and I've tried charging with the astroslim 3 as well with the same issue (which MAY charge for a couple minutes more before stopping). I have absolutely no idea why it won't charge properly and it's only on my OPO, like I mentioned it works fine with other devices. Only thought I had was maybe the phone is trying to draw too high a voltage for the charger so it just stops...but that still doesn't make sense. I'm on slimkat 8.8 (clean flashed, stock slimkat kernel).
Anyone have any ideas?
Thanks!

It might have something to do with the output only being 1A. Also, what kind of cable are you using?
Transmitted via Bacon

Sometimes, i've the same issue with the original charger and stock 38r rom.
I've also do some testing with a 40w anker : sometimes full charge takes less than 2h (2A output, so let's say it's quite normal) but sometimes it takes more. Same issue with original charger...
Try those :
- use your anker with original opo cable.
- try To reboot the phone and plug it back again
- try to charge with phone stopped.
It could be software related, but also hardware (battery for example)

@timmaaa I tried the built in one and a USB cable that came with my WD portable HDD. Maybe you're right about the 1A output. Hope not though lol
@lezioul thought about trying the OG cable but it was upstairs. I'll try it in the morning along with the other stuff you suggested.
Thanks guys!
Sent from my slim1+1 using Tapatalk

lezioul said:
Sometimes, i've the same issue with the original charger and stock 38r rom.
I've also do some testing with a 40w anker : sometimes full charge takes less than 2h (2A output, so let's say it's quite normal) but sometimes it takes more. Same issue with original charger...
Try those :
- use your anker with original opo cable.
- try To reboot the phone and plug it back again
- try to charge with phone stopped.
It could be software related, but also hardware (battery for example)
Click to expand...
Click to collapse
so no dice on any of those. when I plugged it in while the phone was off, it flashed the boot screen but I guess it's not on? The charge indicator on my power pack is still on so that may be the only way to charge it with my anker. That would suck! But I think @timmaaa might be right
anyone else have any issues (or NO issues) with other portable chargers?
Edit: Charged 10% with the phone off in 10-20 minutes! Thanks

So maybe it's software related...
I get rid of CM11S yesterday evening, after my wlan driver was unable to load for no particular reason...
I'm running a custom SlimCat now: i could not test my anker, as i'm on a business trip, but i'll try this weekend.

Related

[Q] Forever to charge...

Hopefully I don't get flamed for this as I have been doing searches but so far nothing...
I got my HTC OneXL and that night I flashed Viper onto it. I don't know if it's the ROM or the phone itself, but it takes a really long time to charge. I plugged it in 2 hrs ago at 50% and I'm only now at 60%.
Battery life is hard to know length as I've had the phone a week and have been customizing and setting it up etc.
Is the charging a known issue to the phone or is it the ROM? I'm coming from the Iphone 4S and that thing charged up really fast.
Any help is greatly appreciated!!
Charging it from the pc or from the wall? Using the cable and power adapter it came with?
10 percent in 2 hours is slow. Typically in 2 hours I'll get about 50 percent or more.
If you have a 30 day faulty return policy I would take advantage and make sure they replace the power adapter too. Typically they would of course but I thought I'd specify just in case they wouldn't want to for whatever reason.
If you don't have a return policy available, I would try another usb power adapter for a couple hours as that would be my first guess as the culprit for this though it could also be an issue within the phone.
Sent from my HTC One X using xda app-developers app
I had the phone given to me and it didn't come with the original cord. I'm using the cord from my Xoom so that could be it...
Sometimes I use the wall charger, sometimes my pc and sometimes the USB port in my car. Guess I'll have to try and track down the actual cord and see if that works. It'd be cool if those dots on the back had an actual charger that worked for them!
ChandraKoo said:
Sometimes I use the wall charger, sometimes my pc and sometimes the USB port in my car.
Click to expand...
Click to collapse
Charging from a PC is slow, and from a car is extremely slow. If the 10% in 2 hours is from car charging, it would not surprise me, and pretty normal.
MicroUSB chargers or cords from most phones will work just fine on the this device, but don't know about the Xoom. I suspect either the charge source (car, PC) or cord may be the issue here.
Also keep in mind, that after a ROM flash, the battery meter is not completely accurate. You have to do a charge cycle to full, then drain to 10-20% for the high/low "flags" to be properly set. This might be part of the issue. But I haven't seen it cause such a slow increase in readings while charging, so I don't think its your main problem.

[ KatKiss-KitKat #019 ]Battery not charging?

Hello.
Yesterday I upgraded from KatKiss #018 to #019. Up to now #018 had worked perfectly, but today with #019 I noticed that when plugging in my charger (I don't have the dock), I didn't get the little 'flash' sign on the battery notification; going into the settings to look at battery usage, I noticed that i said 'Battery not charging' even though I had left the charger plugged in.
I unplugged the charger, turned off the tablet, and replugged the charger, and the tablet turned on, which it does when plugging in the charger and being off.
Has anybody had this problem? Is it really charging but not notifying it? If not, what can I do besides reflashing?
Thanks!
me too
fdelente said:
Hello.
Yesterday I upgraded from KatKiss #018 to #019. Up to now #018 had worked perfectly, but today with #019 I noticed that when plugging in my charger (I don't have the dock), I didn't get the little 'flash' sign on the battery notification; going into the settings to look at battery usage, I noticed that i said 'Battery not charging' even though I had left the charger plugged in.
I unplugged the charger, turned off the tablet, and replugged the charger, and the tablet turned on, which it does when plugging in the charger and being off.
Has anybody had this problem? Is it really charging but not notifying it? If not, what can I do besides reflashing?
Thanks!
Click to expand...
Click to collapse
me too, i just flash it usually,,, battery at 100% wipe cache system etc, when my tf reach 0% it wont charge, but when i charge in off mode ( shutdown TF ) it charge but so long, 8 hour only charge 20% need help to resolve this issue,,,
I have the same issue, battery will not charge. and it seem that it will not get supported here, no answer from the dev, please dev look it up
I am fine with kitkat 19. You guys above may give a try to change a data cable to charge your tablet.
not sure
vegetaxda said:
I am fine with kitkat 19. You guys above may give a try to change a data cable to charge your tablet.
Click to expand...
Click to collapse
If my tf port charge broken,why when off mode my tf wake automatically when connect charger?
My charger perfect work in my friend tf,also when i connect to pc it detected by pc n can transfer data,if it broke,it cant be detected,right?
Sorry for my bad english
Best regard
Riady diethelz
No problems for me and most people I guess otherwise they would stay away from the rom if it was not charging
Try to power off completely your tablet, then cold boot.
Try to change cable, try to test with another charger.
If that doesn't help do a full wipe and a clean install and test again before reinstalling anything else on your tablet.
if that still doesn't help, follow the procedure to report an issue in my signature, I'm not psychic.
Hello.
I have a problem related to the battery as well. Ever since I flashed to #19, my tablet and dock battery seem to run dry very quickly in sleep mode. I have come home from work to occasionally find the tablet unable to boot (it had a dock charge of no greater than 75% and a tablet charge of 100%) and when I plug the charger into the dock and then boot it, I find both batteries have next to no charge.
This is only on timduru's KK#19. I never saw this problem on #18 and below, or any of the previous 'droid versions (4.3.1_029 or 4.2.2_226).
I am currently letting the tablet's battery run to empty and then I will be charging the dock and tablet separately, but this is the first time I've ever encountered this problem.
okay
timduru said:
No problems for me and most people I guess otherwise they would stay away from the rom if it was not charging
Try to power off completely your tablet, then cold boot.
Try to change cable, try to test with another charger.
If that doesn't help do a full wipe and a clean install and test again before reinstalling anything else on your tablet.
if that still doesn't help, follow the procedure to report an issue in my signature, I'm not psychic.
Click to expand...
Click to collapse
thanks for reply, i will try 3rd method because i have do 1 n 2 method but no use,,,its still can charge but in off mode, but it took much time,,,12 hour only get 35% battery,,,,clean instal?format data too???i have do installation step,,,format system,cache dalvik,,,its happen when my battery reach 0%,,,i have try my friend charge,,,but also cant charge,,,but my charger can charge in my friend TF,,,,i will try change other ROM then to check if it also have the same problem...
KatKiss #20 no charging problems here
perompak13 said:
thanks for reply, i will try 3rd method because i have do 1 n 2 method but no use,,,its still can charge but in off mode, but it took much time,,,12 hour only get 35% battery,,,,clean instal?format data too???i have do installation step,,,format system,cache dalvik,,,its happen when my battery reach 0%,,,i have try my friend charge,,,but also cant charge,,,but my charger can charge in my friend TF,,,,i will try change other ROM then to check if it also have the same problem...
Click to expand...
Click to collapse
Did you try another ROM? I'm on #20 and I think I have (mentionable) more battery life. Not charging issues. Guess the fresh installment / wipe helped or an energy eater didn't survive the reinstall. Also I could observe two things (which I don't know of if they are related): Sometimes when the tab was docked it didn't charge. Second the the tab hat a battery problem. When docked and in sleep -> Dock empty next morning. I controlled this with Juice defender but weren't able to locate the problem in an app. This is now gone.
From my experience: I bought 2 power cable for the TF101 (only cable). One works as USB cable with no loading feature (not on USB 3.0 nor on the wallcharger). The other one works as USB connection cable and as wall charger. I can extend the original cable with USB to USB cable to transfer data and charge. I can't get any of that both two (CHEAP) cables to load extended or trasfer data. The two cables I bought at ebay were diffrent vendors. One for ~2,50€ the other for ~4€. If I remember right the original cable where much much more. What I want to say: There are huge diffrences in USB cables. Dunno. It would be a strange accident that the charger or cable broke when / while you intalled a ROM. Could it be that the "intelligent" battery stats are broken somehow? So they think the battery is full and therefor not charge? Or would the icon / indicator then show 100%? Does the icon get its information from the same source (or directly from) as the android battery management?
(ps: 12 hours for 35%=! ROFL!?? What charger is that?)
You may consider having a look at this HowTo
Piehti said:
Did you try another ROM? I'm on #20 and I think I have (mentionable) more battery life. Not charging issues. Guess the fresh installment / wipe helped or an energy eater didn't survive the reinstall. Also I could observe two things (which I don't know of if they are related): Sometimes when the tab was docked it didn't charge. Second the the tab hat a battery problem. When docked and in sleep -> Dock empty next morning. I controlled this with Juice defender but weren't able to locate the problem in an app. This is now gone.
From my experience: I bought 2 power cable for the TF101 (only cable). One works as USB cable with no loading feature (not on USB 3.0 nor on the wallcharger). The other one works as USB connection cable and as wall charger. I can extend the original cable with USB to USB cable to transfer data and charge. I can't get any of that both two (CHEAP) cables to load extended or trasfer data. The two cables I bought at ebay were diffrent vendors. One for ~2,50€ the other for ~4€. If I remember right the original cable where much much more. What I want to say: There are huge diffrences in USB cables. Dunno. It would be a strange accident that the charger or cable broke when / while you intalled a ROM. Could it be that the "intelligent" battery stats are broken somehow? So they think the battery is full and therefor not charge? Or would the icon / indicator then show 100%? Does the icon get its information from the same source (or directly from) as the android battery management?
(ps: 12 hours for 35%=! ROFL!?? What charger is that?)
You may consider having a look at this HowTo
Click to expand...
Click to collapse
i have mention in other thread,,,my charger original from asus,,,my asus has 2 years with me no problem before,,,,it can connect to laptop,buat when charge in on mode it cant,,,my charger ONLY can charge my battery in off mode (device shutdown),i will try full wipe back to factory re root etc,,,and then fresh install,,,,but it will take more time because i am still wait fot 100% battery,,,
perompak13 said:
i have mention in other thread,,,my charger original from asus,,,my asus has 2 years with me no problem before,,,,it can connect to laptop,buat when charge in on mode it cant,,,my charger ONLY can charge my battery in off mode (device shutdown),i will try full wipe back to factory re root etc,,,and then fresh install,,,,but it will take more time because i am still wait fot 100% battery,,,
Click to expand...
Click to collapse
if it takes that much time even when it's off, it means that it's only charging at 5V.
Also at 5V it won't charge unless the screen is off if I remember well.
There's a special pin/connection made in the cable for the charger to detect that it's a Transformer plugged that will make it charge at 12+V
There's most likely a pin/ contact broken either in your cable / charger /tab, that prevents it to charge at high voltage.
perompak13 said:
i have mention in other thread,,,my charger original from asus,,,my asus has 2 years with me
Click to expand...
Click to collapse
So you say you go with option #3 then because u already did option 2, right? Quote Tim on option 2: "Try to change cable, try to test with another charger.".
So you have 2 x THIS and 2 x THIS? Because that would mean, what Tim suggested I guess. As far as I know this is the only way ASUS shipps the original TF101.
I'm asking because most people that I know would buy another noname charger or even just a noname cable instead of horribly expensive original pieces. If you really got the 2 x 2 pieces shown above,
then I'd guess wether your tablet is broken or the software on it is broken. But again: Did the charging problem REALLY firstly appeared when intalled the ROM? Or did you install the ROM because of the
fault? Or don't you exactly know.
To point out again: It would be a strange coincidence, that both cables AND adapters would stop working exacly at the same time when u installed #19. If you use 2 different cables at the same adapter: Then it's possible that the adapter is broken and only gives the USB (5V) loading speed. If you use 2 adapters and 2 cables and tryed all combinations: The most likely something with the tab isn't cool. The software or the hardware...
timduru said:
if it takes that much time even when it's ...
Click to expand...
Click to collapse
Precisely what I meant.
Cheers.
I have loaded #29, and I started seeing this issue immediately. It was fine before that. After loading the ROM, it would only charge when TF is dead. I have the original charger and cable that came with it which was working fine before the upgrade. So, I don't suspect either of them.
kandhavelr said:
I have loaded #29, and I started seeing this issue immediately. It was fine before that. After loading the ROM, it would only charge when TF is dead. I have the original charger and cable that came with it which was working fine before the upgrade. So, I don't suspect either of them.
Click to expand...
Click to collapse
I was going with #29 and #30. Havent seen or heard about any loading issues but that was related to loading the tab on an USB port ... What actually is an bad idea even on USB3.0.
Gesendet von meinem Transformer TF101 mit Tapatalk

[Q] Charging--5sec-->Not Charging

My nexus 5 went to 0% battery one night and died. I tried charging it with 4 different chargers, some with usb some outlet and a wireless charger to no avail. I then purchased 2 new batteries and the phone was able to turn on with the replacement ones. However they would not charge. On the battery status screen it would go from saying Charging (on AC or USB depending on how i was trying to charge it) for 5~ seconds to saying Not Charging. The charging icon was still on the little toolbar battery icon but it would not charge. So those two new batteries are dead :good:. So I thought maybe software issue, I had enough juice to get in the bootloader and flash back to 4.4.4 which would still not allow it to charge. Then I started flashing to other versions and eventually back to 5.1.1 to no avail. I replaced the charging port with one from my brothers nexus 5 and it still would not work. My battery and charging port worked in his phone however.
Now I don't know what to do! This is the first phone I've really had to research about bootloaders and roms and stuff so I'm fresh.
TL;DR: Phone goes from charging for 5 sec to not charge with different software versions (4.4.4, 5.1.1 +more), with many different chargers (including one that came with phone), with new battery and new charging port.
Thanks.
Mine did that with a new battery also. The new battery was a dud--I contacted the seller, who sent me another battery, and that one does charge.
Telyx said:
Mine did that with a new battery also. The new battery was a dud--I contacted the seller, who sent me another battery, and that one does charge.
Click to expand...
Click to collapse
I've tried 3 different batteries including my brothers nexus 5 battery which charges in his phone so I am confident its not a battery issue now.
bump
bump
bump
if the actual USB port is working on ur brother's and so is the battery, i am afraid then u have a bad Motherboard...
theres a Texas Instruments BQ24192 I2C controller chip, that is what regulates charging, such as voltage, etc...
if it doesnt even respond to wireless charging, that may be bad https://www.ifixit.com/Teardown/Nexus+5+Teardown/19016#s53734
that would be my guess....
Well technically it responds to it but it only lasts for a few seconds. Wireless charging and wired charging get a response from the phone by changing it to say charging on ac or usb or whatever but it just goes back to saying not charging after ~5 seconds. Is this still a bad mother board you think? Is it worth it to try and purchase a motherboard or just get a new phone?
Any solution for this? Came later but did come to this problem.

Galaxy S6 slow charging issue

Hi,
couple of weeks ago, my phone starts charging slowly. Whenever I use any other charger, than original, its charges only with arround 400-700mAh - thats only 1/3 of the charging speed. The non original chargers have 2A output: Samsung car charger, ASUS tablet charger, ADATA powerbank. I tried different cables, restared the phone, charging while phone was off, cleaning the phone conector with contact spray.
The battery consumption is normal, arround 50mAh. The fast charging with original charger works OK. All the chargers, I mentoined, worked perfectly just month ago. Unfortunately, I do not have the options test the chargers on other phones, because all other are just slow chargers (1A)...
Any idea, why this is happening?
partialy solved
I perform some tasks, and it seems, that it helps:
I did: wipe system cache. This increases the charging speed from 1/4 to 3/4 (400mAh -> 1300mAh) from the powerbank. The charging speed from car charger didnt changes
Then I did factory reset of the phone and it seems, that this helps.
The charging speed is very depending on the proper usb cable used. One cable works fino on one charger, but performs bad on another...
niio said:
I perform some tasks, and it seems, that it helps:
I did: wipe system cache. This increases the charging speed from 1/4 to 3/4 (400mAh -> 1300mAh) from the powerbank. The charging speed from car charger didnt changes
Then I did factory reset of the phone and it seems, that this helps.
The charging speed is very depending on the proper usb cable used. One cable works fino on one charger, but performs bad on another...
Click to expand...
Click to collapse
all USB Cables have different amperes, some have 2A some have 2.1A, furthermore, it also depends on the power source, the car's charger couldn't be as strong as the wall socket i think.
Anyways, on a side note, i suggest you try Aukey quick charge 2.0 powerbank. fast charges your S6.
niio said:
Hi,
couple of weeks ago, my phone starts charging slowly. Whenever I use any other charger, than original, its charges only with arround 400-700mAh - thats only 1/3 of the charging speed. The non original chargers have 2A output: Samsung car charger, ASUS tablet charger, ADATA powerbank. I tried different cables, restared the phone, charging while phone was off, cleaning the phone conector with contact spray.
The battery consumption is normal, arround 50mAh. The fast charging with original charger works OK. All the chargers, I mentoined, worked perfectly just month ago. Unfortunately, I do not have the options test the chargers on other phones, because all other are just slow chargers (1A)...
Any idea, why this is happening?
Click to expand...
Click to collapse
I am wondering if this may be related to an update? Both me and the wife started experiencing this same problem, at the same time (different chargers). A few nights ago our chargers were working fine then the next night after 12 hours of charging battery is only around 80%
I did a factory reset on mine on Sunday for other reasons but this has made no difference to the charging issue
Cougar-UK said:
I am wondering if this may be related to an update? Both me and the wife started experiencing this same problem, at the same time (different chargers). A few nights ago our chargers were working fine then the next night after 12 hours of charging battery is only around 80%
I did a factory reset on mine on Sunday for other reasons but this has made no difference to the charging issue
Click to expand...
Click to collapse
Download Advanced Battery Calibrator from Play Store.
Uzair40 said:
Download Advanced Battery Calibrator from Play Store.
Click to expand...
Click to collapse
I tried this app as you suggest and to be honest my battery is worse rather than better. From fully charged, my battery has dropped by 20% in less than 2 hours pretty much being on standby. See screenshots below.
Cougar-UK said:
I tried this app as you suggest and to be honest my battery is worse rather than better. From fully charged, my battery has dropped by 20% in less than 2 hours pretty much being on standby. See screenshots below.
Click to expand...
Click to collapse
It's weird, anyway download the latest stock firmware for your device model and flash it using Odin. Wipe everything from Recovery Mode before and after flashing.
What difference would flashing stock firmware make? My phone is up to date and I did a factory reset on Sunday
Hi everyone .I'm also using s6 is very slow almost a week and it take almost 5 hour to be full charged and also it's not detected bu usb in computer and otg is also not recognized
hasvuai said:
Hi everyone .I'm also using s6 is very slow almost a week and it take almost 5 hour to be full charged and also it's not detected bu usb in computer and otg is also not recognized
Click to expand...
Click to collapse
I have the same situation, my s6is chargind just at 400mA speed, and my pc is showing USB not recognized (windows 10), thought it could be a usb charging board just pluged in new one, nothing changed... the same problem. there is somthing more, likely usb chip on motherboard or maybe battery... or some kind of problems
hasvuai said:
Hi everyone .I'm also using s6 is very slow almost a week and it take almost 5 hour to be full charged and also it's not detected bu usb in computer and otg is also not recognized
Click to expand...
Click to collapse
xenixas said:
I have the same situation, my s6is chargind just at 400mA speed, and my pc is showing USB not recognized (windows 10), thought it could be a usb charging board just pluged in new one, nothing changed... the same problem. there is somthing more, likely usb chip on motherboard or maybe battery... or some kind of problems
Click to expand...
Click to collapse
I have the exact same issue! Have any of you pinpointed the cause? My phone didnt charge at all for a few days (stayed at 0%) but now it takes a charge but charges really slow (5 hours approx to full) its also not recognised by odin...
rm83855 said:
I have the exact same issue! Have any of you pinpointed the cause? My phone didnt charge at all for a few days (stayed at 0%) but now it takes a charge but charges really slow (5 hours approx to full) its also not recognised by odin...
Click to expand...
Click to collapse
Were you able to fix the issue? Im currently experiencing the same thing..
rm83855 said:
I have the exact same issue! Have any of you pinpointed the cause? My phone didnt charge at all for a few days (stayed at 0%) but now it takes a charge but charges really slow (5 hours approx to full) its also not recognised by odin...
Click to expand...
Click to collapse
my culprit was the provided samsung cable. if you're in the UK the "betron" reinforced cables from Amazon sorted my problem... cheap and comes with warranty. Mine is still going strong and no problems here
rm83855 said:
my culprit was the provided samsung cable. if you're in the UK the "betron" reinforced cables from Amazon sorted my problem... cheap and comes with warranty. Mine is still going strong and no problems here
Click to expand...
Click to collapse
For my case, it happened after my phone is updated. I brought my phone to a service center unfortunately it's already out of warranty. They are asking around $90 to have my phone fixed. According to them, they need to replace the battery and the sub board.
Im really dumbfounded how this happened.
I have the same problem with my s6 I have replaced the charger port and still won't connect to the pc or fast charge

Slowest Battery Charging

Alright, so here is a fun issue to deal with. My notepro has always been a little slow to charge, but most of them are. However, its gotten very bad.
I have had issues with screen flicker and a little heat issues and some other small things off an on. So, fed up with it, a few days ago I rooted the tablet. It worked fine. Then I tried to install a new kernel and rom that was getting good reviews. However, when i did this, I couldnt get past the boot screen. Several reinstalls of stock and customer kernels later, my tablet started flashing and eventually died. When it was plugged in, it would show the battery icon with a circle in the middle but then die. Several tries to fix only seemed to solidify the tablet's fate.
However, yesterday I gave it another shot. I assumes the tablet had heated up and made the solder loose, so after a while it was solid again. It started charging, and after reinstalling stock rooted rom and stock kernel repeatedly, it was working again. I then installed the rom and kernel I was trying to before (I had to have a custome kernel to be able to control voltage for the screen flickering issue).
Now it is actually working. All functions are working, and oddly enough I am not seeing any screen flickering.
Only one real problem remains. Battery charging. The battery is charging so slowly that when the tablet is turned on, it doesnt charge at all, it creates a stalemate between charging and draining. It also drains pretty quick. The power drops about 5% in about 5-10 minutes of full screen brightness use (I was testing it this way to try and see if it would flicker again.
Its been charging for about an hour now, and only gone up 5%.
I have tried a couple cords and different bricks, but to no avail.
There are some thoughts, I am wondering if the tablet is only drawing power as if charging from usb, so only around 0.5a instead of 2.4a or so . I am also wondering if there is still a hardware issue.
I do not think it is the rom or the kernel, as this issue was happening as well after I got the tablet working again on stock but before I tried isntalling the rom/kernel again.
Any suggestions? I would be very appreciative.
I had simular problem with very slow charging, reboots and bluescreen. I opend my note to check battery plugg for broken soldering, but I found no problem with it. But to check turely i unplugged battery from main bord and replugged it again. After that I had no problem at all, now its charging normal, no reboots.. stil working perfect after averyday use for about 8 mounts......
If you are using usb cord not usb3 cord it will charge very little when using tablet . Mine will charge when off and below 25% to full in 7 or 8 hrs overnight.
Sent from my SPH-L300 using XDA Free mobile app
Could be a bad charging port dock/flex cable. These are actually pretty easy to replace and can be found on Amazon. I had to replace one on mine. Try searching for a usb charging port dock flex cable for samsung galaxy note pro. That will cause the issues you are seeing. However the screen flickering sounds like a voltage issue caused by a cracked solder pin from the battery connection to the board. Which is very common on these and hard to see without an electronics magnafication glass. You could try taking the back off and pressing the battery connection firmly while plugging in your tablet and powering it one to see what happens. Either way sounds like a hardware issue.
snifferno said:
I had simular problem with very slow charging, reboots and bluescreen. I opend my note to check battery plugg for broken soldering, but I found no problem with it. But to check turely i unplugged battery from main bord and replugged it again. After that I had no problem at all, now its charging normal, no reboots.. stil working perfect after averyday use for about 8 mounts......
Click to expand...
Click to collapse
Ok Guys, had the same problem with my 12.2 samsung tab pro, changed usb chargers, cables etc.
Found that the connector on the tablet itself (female) did not made good contack with the male usb.
So i simply , very careful, with a pair o pliers closed both tips on the usb conector, so the cable enters more tight. And voila, the usb amp meter i had showed a rate of charge from .33 amp , jumped to 1.73 witch is more than enough to charge and use tablet at the same time.
You need to do this at the end of the cable that plugs on the tablet, that is kind of double, maybe a e.0 usb or something like that. Make sure to close both tips. You want a tight connection

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