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Hi everyone (and sorry for my bad english) !
Since some days my GSM Galaxy Nexus is anoying me with a problem I can't understand.
At random moments, my GN thinks he is charging but he isn't even plugged !
The indicator in the notification bar shows the battery is in charge and all the phone believes he is charging.
Other problème, the charging indicatore comes and goes again and again and again, so the scree goes on everytime the GN is "plugged in".
My battery goes down at the speed of light this way ...
I tried to wipe, uninstall potential apps that could cause the issue, changing rom, changing kernel ... It still happening but not every time. Often it comes when the battery is under 50% or arround. I also have battery drops when I reboot the phone, like if the battery wasn't correctly calibrate ...
If I reboot the phone, the problem still here, if i get the battery off and then put it back and reboot the phone it works normaly ... for a indeterminate time ...
This problem make me crazy, is anyone got a solution ?
Thanks for all.
Anyone can help please ?
I would definitely demand a replacement battery. For me it seems like the battery is broken, therefore it's a warranty issue. If the problem still exists, it must be the hardware of the phone itself. I don't think it's a software problem, since you wiped, changed rom and even the kernel.
So demand a replacement of the battery!
Thanks for your answer ! I'll try this but I don't think samsung customer support will send me a replacement battery like that, they will ask me to send back the phone I think.
I recently had the same issue... here's what fixed it for me. I took the battery out and left the phone plugged into the outlet. Let it sit. I then installed the battery and let it finish its charge while the phone was off. I then took the battery out, unplugged the charger from the phone, and reinserted battery. Power on, VOILA! Mine was back to normal. Hope this helps.
Thanks for helping ! I'll try this
I just saw that I'm not alone in this case : http://code.google.com/p/android/is...s Owner Summary Stars&groupby=&sort=&id=23789
This issue is considerated as a medium priority, I hope for a fix !
I have the exact same problem, and have also commented on the issue at code.google.com. I have also tried "everything". Changed ROM, kernel, wiped battery stat, even let it fully charge while off. Still the same problem where it show as charging in notification bar when unplugged.. and when it have drained to below 50% or so, it start to flicked between charging and not-charging and drains even faster.
After checking CPU Spy it tells me that the phone never goes to sleep, this causes the battery to only last about 12-14 hours by itself..
I have also tryed to open the phone and clean the connector, but it did not fix it. One thing that is strange, is if I pry a toot stick or similar in the micro-usb-connector to press the connector plate (inside the micro-usb-connector) down with the phone faced up, it actually stops to flicker and stays not-charging.
---------- Post added 5th January 2012 at 12:18 AM ---------- Previous post was 4th January 2012 at 11:44 PM ----------
Same problem here: http://forum.xda-developers.com/showthread.php?t=1379478 and here: http://forum.xda-developers.com/showthread.php?p=21031287#post21031287
I have the same problem, and it make my crazy.
I bought the phone about month ago and this problem came in the second week.
I plugged my phone up to my car charger omw home for lunch and the stupid charging issue started to happen all over again... I had to do the whole thing over again. Remove otterbox, back shell, battery, and put it all back together. I'm really trying to avoid swapping the phone out with verizon. With the way it's looking, I'm about to call and hassle a VZW CSR and get me an instant swap in the morning. This is unacceptable SAMSUNG. Bad thing is, it must be common with Smsg phones, as I found 5 other devices of theirs that seemed to have the same problem Nexus S and Fascinate being two of them.
Same issue here as well, with the battery icon showing the charging bolt despite not being plugged in.
This will happen when the phone is not in use, and ill notice the screen flash on for a moment.
I tried the solution offered in this thread, only to have the symptom return just hours after powering the phone back on, and w/o being plugged back into another charger.
Same here, the solution didn't work for me but push the conector down with a toothpick seems to work for me ... for the moment.
So it seems to be a hardware problem of the device !
I have now ordered a new USB connector board to see if that fixes it: http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=150713366355
Will report back.
---------- Post added at 06:30 PM ---------- Previous post was at 06:01 PM ----------
When did you buy your phones? This could be a problem on early batches.
Could you see what part number you have on the actual USB connector?
I see that on this replacement board the number is 1H13D, while my number is 1J10F.
The replacement board with 1H13D written on it: http://www.globaldirectparts.com/v/vspfiles/photos/SMSNG6111630-6.jpg
Melhouse said:
I have now ordered a new USB connector board to see if that fixes it: http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=150713366355
Will report back.
---------- Post added at 06:30 PM ---------- Previous post was at 06:01 PM ----------
When did you buy your phones? This could be a problem on early batches.
Could you see what part number you have on the actual USB connector?
I see that on this replacement board the number is 1H13D, while my number is 1J10F.
The replacement board with 1H13D written on it: http://www.globaldirectparts.com/v/vspfiles/photos/SMSNG6111630-6.jpg
Click to expand...
Click to collapse
Hey, strong work! You might diagnose this thing before Google does. Keep us posted.
I'm experiencing this too, I did have it go away for about a week, but now it's back. I"m not looking forward to RMAing it, because I ordered it from the US and I'm in the Caribbean. I'm hoping the USB board replacement will work - waiting to see the results.
So glad I finally found this thread....
This started happening to me Friday night. First thing I noticed was while I was out the battery symbol had the lightning bolt in it as if it was charging, but it wasn't.
Long story short, nothing I do is able to charge the phone, both while the phone is on and while the phone is off) and it's REALLY pissing me off. The only response I can get from the phone is when it's off, it keeps looping over the two battery animations and acts like it's charging, but it's really not.
In all my playing around with it I somehow got it to charge to 40% yesterday. The only thing I can say for certain was that the phone was plugged in while I was trying to boot it up and when it shut off I didn't see the battery charging animations so I left it alone for a little bit before I checked it out and was surprised to see it charged a bit.
Today I was able to have it happen again and got the battery to 60%. This time I Started from the bootloader and again, when it turned off, I didn't see the battery animation.
I was able to reproduce this again just now by going into the bootloader and just choosing the option to power it off. Will report back in a little while to let you know if it charged past 60% after doing that.
Edit: powering off from the bootloader did not charge the phone. I accidentally pulled the battery and it went from 60% to 37% when I turned it back on. I think there is something screwy with my battery. Does anyone know if the regular Verizon battery fits in the GSM version?
I've got at least a similar issue, but managed to get a fix working (at least for now). I've had the phone for about 2.5 hours now. I got it with around 50% charge, after 1.5 hours, it was at 24% so I went to charge it. Tried the included USB cable to my Windows 7 PC, it tried to install drivers, the install failed. The battery was labeled as still discharging and the unlock screen told me to charge the battery.
I proceeded to try the samsung charging head thing with the original cable in one outlet, then in two more - same result, no charging indicated. Tried with a brand new micro USB cable and had no results. Tried the other cable with the PC. I read around on the issue a bit and found this thread, since people were saying it could be software related, I figured I would power down the device and try again.
I powered down the phone while it was disconnected from USB. I then plugged it into the USB cable connected to my computer. My PC then recognized the device and installed the drivers correctly, the bolt over the battery icon appeared on the Galaxy Nexus's screen. I let the screen turn off then woke it again, the battery charging animation was going. I booted the device while connected to USB. Now in the OS it says the battery is charging and it was charging from about 42% - so I think the actual battery power was not being properly reported before the reboot and when the charging problems were happening.
I'm hoping this has set it to work, but if something else happens, I'll post here again.
DaJMasta said:
I've got at least a similar issue, but managed to get a fix working (at least for now). I've had the phone for about 2.5 hours now. I got it with around 50% charge, after 1.5 hours, it was at 24% so I went to charge it. Tried the included USB cable to my Windows 7 PC, it tried to install drivers, the install failed. The battery was labeled as still discharging and the unlock screen told me to charge the battery.
I proceeded to try the samsung charging head thing with the original cable in one outlet, then in two more - same result, no charging indicated. Tried with a brand new micro USB cable and had no results. Tried the other cable with the PC. I read around on the issue a bit and found this thread, since people were saying it could be software related, I figured I would power down the device and try again.
I powered down the phone while it was disconnected from USB. I then plugged it into the USB cable connected to my computer. My PC then recognized the device and installed the drivers correctly, the bolt over the battery icon appeared on the Galaxy Nexus's screen. I let the screen turn off then woke it again, the battery charging animation was going. I booted the device while connected to USB. Now in the OS it says the battery is charging and it was charging from about 42% - so I think the actual battery power was not being properly reported before the reboot and when the charging problems were happening.
I'm hoping this has set it to work, but if something else happens, I'll post here again.
Click to expand...
Click to collapse
I've had the phone for over a month now and never had any issues. I've been trying to plug into a Mac so drivers aren't an issue (I know from previous phones that in Windows the phone wouldn't charge until the right drivers were installed).
There's definitely something very wrong w/ the phone and I fear it's likely a hardware issue, as even when the phone is off it won't charge (but acts kind of like it is).
Right now the only surefire way for me to charge my phone is let it die all the way down and keep trying to boot it up until it dies during a boot before the OS comes up (at which point it'll charge).
For what it's worth I fixed the phone on Monday. I stuck a wooden stir stick from work in the usb port and pushed down on the plate inside ever so slightly. I'd seen this suggestion from a few places online, but I was pretty skeptical. Well, much to my surprise it started charging!
I quickly got it back to it's stock state and re-locked the booloader in case I end up needing to send the phone back to Sammy if the problem happens again.
So far so good, but I've been very careful when plugging and unplugging the usb cord.
I think it's important to keep the OP's issue in mind, because I'm pretty sure there are two different issues here.
1)Many of us have an issue were the phone shows it's charging WHILE UNPLUGGED, causing the screen to flick on repeatedly. This may/may not be accompanied by a charging issues - in my case it isn't.
2)A second issue where owners have problems charging their phones (but never experience the charging while unplugged bug).
I think the intent of this thread is to track (1). I've never heard of the toothpick issue helping those experiencing (1).
How are people pushing the usb plate down, any pictures?
Hello,
I bought a GN, I9250, European model, made in China 4 days back from a vendor online.
I am having problems charging the phone.
When PHONE is ON
1. When plugged into the included charger/cable, the battery status shows CHARGING (AC) for a few minutes and then changed to NOT CHARGING. Removing the USB plug or switching off the mains and restarting in a minute takes the status back to CHARGING (AC) but again for a few minutes.
2. Tried with multiple chargers and cables with exactly the same results
3. When the phone is connected to USB port in laptop, the charging happens, for a longer duration. The laptop also detects the phone immediately and I can access files etc. After say 20-30 minutes odd the status again goes to NOT CHARGING. However, while the phone is not charging, I can still access files on the phone. This implies the USB connectivity is still perfect, only the charging has stopped.
4. Under no circumstances does the charge go beyond 50% odd, irrespective of the duration of charging
When PHONE is OFF
1. The phone shows the battery icon with bolt for a few seconds and then shuts off. If I click the power button briefly I can see the battery charging icon.
2. I kept the phone in charging with the wall adapter all night, and got 49% charge only, starting from about 10% when put to charge.
The battery indicator graph shows the phone is has never hit a charge level above 65% types.
I have not seen the other charging issue of the phone showing a bolt in the battery icon even if the phone is not plugged in ! (thank god!!!)
I bought it "as new" condition, and performed a factory reset immediately on receiving the phone. So its running stock applications, with almost everything except voice and 2g data on. No applications except Whatsapp are running.
All other aspects of functionality are working well.
I have read hundreds of posts across the web and am not sure what the problem could be with my phone. I am in India and since the phone was bought off the net, its unlikely that it will be provided warranty etc here. In fact I'm not even sure if there will be servicing competency in the technicians here.
I have tried to puch the micro USB tongue by pushing it upwards gently, but cannot really say whether or not it did bend or i was just too fearful. Have tried removing battery etc and all other soft methods written everywhere.
Any help ???
maybe a screwed battery ?
-Jesco- said:
maybe a screwed battery ?
Click to expand...
Click to collapse
Hello,
I do suspect it myself, but I don't know how to verify this. Can any other Samsung phone battery be put in the phone or is the phone compatible only with this one? Getting another battery is not possible in the near future since this is not available in India...
Any thoughts on how to check this?
ketu269 said:
Hello,
I do suspect it myself, but I don't know how to verify this. Can any other Samsung phone battery be put in the phone or is the phone compatible only with this one? Getting another battery is not possible in the near future since this is not available in India...
Any thoughts on how to check this?
Click to expand...
Click to collapse
I have the same problem, but it's not the battery's fault. My brother also has a GNex, and I tried charging my phone with his battery, and vice-versa, without any luck. I think it's the USB port's fault. Something about power not getting to the phone correctly. Luckily I bought it at a store here. I talked to the owner, and I'm going to exchange it for a new one tomorrow.
edinchez said:
I have the same problem, but it's not the battery's fault. My brother also has a GNex, and I tried charging my phone with his battery, and vice-versa, without any luck. I think it's the USB port's fault. Something about power not getting to the phone correctly. Luckily I bought it at a store here. I talked to the owner, and I'm going to exchange it for a new one tomorrow.
Click to expand...
Click to collapse
Hello,
I found another GN and did this experiment.
1. When I plugged in my battery which was showing 53% on my phone into the other phone it showed 79%.
2. When I charged the other GN with my battery inside, it charged to 100%
3. When I put my battery back into my phone, it showed 67%
4. When I put in the other GN battery into my phone it showed 49%, while it was showing 82% in the other GN.
5. I was able to charge this other battery in my phone to 60%.
6. When I put it back into the other GN it showed 94% charge.
Apparently my battery seems to be ok. Also, it seems that my phone is charging ok too. But there may be a problem with the phone detecting the battery level !!
Any thoughts?
Hello,
i have exact the same problem. I tried 3 batteries a lot of chargers and i changed the Charging Port Flex Cable.
This all without success
The Problem is, sometimes it charge to 50%, the most it charge to 75% and one time i get it to 81% yeah
So does it give any help for this Problem ?
Goofy
goofy_79 said:
Hello,
i have exact the same problem. I tried 3 batteries a lot of chargers and i changed the Charging Port Flex Cable.
This all without success
The Problem is, sometimes it charge to 50%, the most it charge to 75% and one time i get it to 81% yeah
So does it give any help for this Problem ?
Goofy
Click to expand...
Click to collapse
some battery got data issues where phone cant recognize the exact capacity. try check *#*#4636#*#* your capacity of ****mah should be correctly read by phone here. if not, change your battery immediately bcoz big issues will coming up
here the screenshots .. first i plug out and in the power plug ...
and a few minutes later it stop charging
But the Phone see is connected to the AC ??
memaro_maro said:
some battery got data issues where phone cant recognize the exact capacity. try check *#*#4636#*#* your capacity of ****mah should be correctly read by phone here. if not, change your battery immediately bcoz big issues will coming up
Click to expand...
Click to collapse
goofy_79 said:
here the screenshots .. first i plug out and in the power plug ...
and a few minutes later it stop charging
But the Phone see is connected to the AC ??
Click to expand...
Click to collapse
your battery got data detected.. maybe this 3800mah extended battery was totally crap.
give 2-3 day period. charge wt ac plug & usb charging method. see if got any different between this 2 merhod. if not, try buy the good replacement before your emmc fried.
* maybe u should ask to another forum.. gnex accessories /batteries. they must be got some experiences wt this type of extended batteries. maybe.??
A while back, after sweating profusely into my phone during a workout session, my gnex started behaving badly when I wanted to charge it. Needless to say I've got a battery app installed that is able to detect the plugin state (whether the phone is on battery, whether the charger is plugged in or whether it's just a usb connection such as a computer) and actual % voltage the thing has in the status bar. The app itself is: Battery by MacroPinch.
Well I figured the usb port was probably going so I got a new one of those (i.e. flex cable microusb etc.) for my sch-i515. I also decided to get a new battery just in case... so I replaced the battery (it's an oem samsung one) and fwiw, the thing stabilized its behavior! I've since swapped them back and forth with no apparent issues. However, I took my phone out with me on a run and it started acting flakey again. I've (in the past) had to clean out the port with a toothpick, I've had to on occasion bend the flap in there, do battery pulls (which believe it or not worked for a while), and so on. This time however was different. The phone wouldn't wake when I plugged in or unplugged the charger... and in no way shape or form would the charge indicator come on (you know, lightning bolt in the batter icon etc.) and to make matters even worse this time, my laptop simply didn't recognize the phone was plugged in. So I bit the bullet and and did the surgery and replaced the usb board and mic.
It could not have gone more smoothly, unfortunately (as might have guessed) all is not well... so now:
if the screen is dark -
the phone will wake when the charger is plugged in
the phone will wake when the charger gets unplugged
Using a moto droid cable (from my og droid)
the phone/computer realize they are plugged in together and Wug's NRT works and so on.
BUT the battery STILL won't charge.
I guess the phone is a couple of years old and it doesn't really owe me anything (I guess) but I'd really like this thing working better until I can get a new one. Does anybody out there have any ideas on what I might have missed? The phone works as before, exactly fine except it won't chare so I'm pretty sure I managed to get all the connectors back together properly... I suppose the usb port I replaced the original with might be defective but....
Any help is greatly appreciated...
Oh I'm rooted but stock, android 4.2.2
No advice at all??
I WOULD have said bad usb port, MAYBE try another? They are cheap enough, mine has been broken forever and I do not want to take device apart to change it because crack in my screen I'm worried will get worse if I take device apart.
so since its impossible for me to charge battery in device, I'm NOT worried about THAT tho, BECAUSE a LONG while back I had purchased 2 extra OEM batteries, PLUS a OEM samsung EXTERNAL CHARGER/stand which ALSO came with a battery. so I NOW have 4 total batteries, and I charge them up in the external charger, then just swap them out as needed.
which honestly is GREAT, cuz if I'm going out all day, I can just bring my extra fully charged batteries with me, and not have to worry about battery drain from heavy use cuz I have 3 other fully charged ones WITH me.
that's really all I can say, if you would like help finding the exact external charger that comes with a battery as well let me know, I had bought mine on amazon couple YEARS ago for only like 25-30$ BRAND NEW, I'm guessing TODAY that price would be like ten bucks
Thanks... that may be the way to go but I use this thing for my gps... but the thing doesnt get power when plugged in at all it seems (I plug it in, pull the battery and it does not stay on) so far I've been using my wife's gnex to charge my main and spare... but like I said the thing is, the phone doesn't even stay on when plugged in and I pull the battery (hers does so I'm thinking that there may be something deeper in that's failed here). I cracked the thing back open last weekend to make sure all the connectors were engaged, but I did not find any issues with them past that point.
Does anyone know if there is a hidden connecter somewhere in there that i could possibly have accidentally unhooked that prevents input power from reaching the guts of this thing?
OK it's getting crazier all the time...
Since my gnex was "working" except for charging (also, the phone would not stay powered on with the usb plugged in and the battery removed) I decided to go for a long run yesterday... I take the phone with me for music, tracking and general "safety". About half-way through my run, I look at the window in the neoprene armband I'm using and it looks like a sauna... the bluetooth cuts out on me... so I pull the phone out and with a minimum of fiddling I get the music back on... regarding the charging issue ... I was using my wife's gnex to charge my two oem batteries.
Well after this run, I try and use voice to text in a text message after I got home... well guess what... the phone records NOTHING. It's like I'm not talking. So I try a few phone calls... the display shows the call in progress, but I hear nothing! So I use my land-line to call the phone... NOTHING NOTHING NOTHING.
I had previously replaced the usb port, so I took out the tools and disassembled the phone. there was some moisture in there... anyway I dry it out as best I can and reassemble. Now I plug in the headphones, and guess what... I make calls... i.e. the damn phone works as a phone. I pull the jack out and nothing. I turn on speaker mode ... I can hear the phone ringing when I place a call... turn off speaker nothing. Bluetooth works with the phone fine, and the volume control for multimedia makes no sound when I toggle it...
Fast forward to today. I disassemble it again thinking I might have not reconnected one of the straps... I disconnect the volume rocker connector and the usb port connecter plus I remove and re install the antenna housing.
NOW the phone CHARGES but no lightning bolt indicator in the battery... but the battery level is CLEARLY increasing! Also when I plug into a laptop, the usb debugging symbol comes on (since I have it enabled) but when I unplug it does NOT go away... I unplug, disable usb debugging it goes away... reenable usb debugging and the symbol comes back without the phone plugged in until reboot.... but now the phone WORKS again as a phone!
so now the phone:
charges but without any visual indication (other than the % reporting of the battery widget I use)
phone recognized by my laptop (which wasnt' working either until I reset some of the connectors today), but unplugging doesn't make usb debugging indicator in status bar go away.
Phone speaker and mic now working without having to use bluetooth, plug-in headphones or speaker phone. (mic was not working with speakerphone turned)
This is just too messed up. My sweat does carry a lot of salt.... and Im wondering if I managed to shake something loose... I did also pry the usb tab up a bit as well...
Is there some way... some fluid I can dunk the phone into, which might clean the thing without destroying it?
My galaxy nexus after some drops not charging.
It can only work only when i have connected with my laptop, charger.
I think usb port is ok.
I must buy a charging port to make that work?
My phone's battery wont charge anymore.
It charges only if I first disconnect battery, plug charger on phone, then turn on phone to boot in android, and then connect battery with phone.
Is this a hardware or software problem?
(i am guessing that there is some switch when battery is full, that it stops charging battery, and only powers phone) if its hardware based, which component should i change
When the 1st time phone stopped charging battery, i did factory reset and it charged battery normally for few times, and now even factory reset doesnt suffice.
Charger and cable works on my other phone and tablet without any problems.
Usb port on phone is probably ok, becouse phone always turns on without battery
Maybe the battery is faulty? I mean if the phone turns on just fine while connected to a power source and no battery installed, I'd assume the battery is dead.
marstonpear said:
Maybe the battery is faulty? I mean if the phone turns on just fine while connected to a power source and no battery installed, I'd assume the battery is dead.
Click to expand...
Click to collapse
When i charge battery with this method, phone works ok with fully charged battery without charger plugged in.
But when i need to charge battery again, i have to repeat those steps i mentioned before.
I tried a lot of steps mentioned on A2 (not lite) forums, as i seen a lot of users had similar problems tried all options without success, some have changed battery, mb and usb port, and that didnt help either.
bedencic said:
My phone's battery wont charge anymore.
It charges only if I first disconnect battery, plug charger on phone, then turn on phone to boot in android, and then connect battery with phone.
Is this a hardware or software problem?
(i am guessing that there is some switch when battery is full, that it stops charging battery, and only powers phone) if its hardware based, which component should i change
When the 1st time phone stopped charging battery, i did factory reset and it charged battery normally for few times, and now even factory reset doesnt suffice.
Charger and cable works on my other phone and tablet without any problems.
Usb port on phone is probably ok, becouse phone always turns on without battery
Click to expand...
Click to collapse
Probably your phone's USB connection loosen solder, one of the terminals (either ground, data connection or positive terminal) might loose or gets rusted and thus, never charge phone properly. My SM-J500H (my other phone) does the same syndrome that it just charge but not really charging at all, because of 'green' rusted USB port.
Try checking your USB port and if there's some rust in there, or some loose solder. Try also change USB port (by your technician) if it still persist.
hi, have you found a solution? because i'm having the exact same issue.... phone only charges with the method you mentioned
hello guys,
i need help figuring what is wrong with my phone. it cannot be charged right now, even when plugged in with charger,
the charger and cable i used dont seems to be the problem as i tested with my other phone too.
i have tried changing charging port and battery, but it still didnt solve it. so here i am asking for your opinions.
last week, my phone stops charging when plugged in and the battery wont go up when charged, i tried using same charger and cable to charge my other phone but those didnt seem to be the problem. after that, my phone eventually ran out of battery and died.
then, i thought my charging port has problem, so i buy new one and change the charging port.
but that didnt not solve my problem, as my phone did not even boot when plugged in and when i tried to charge it after that.
then, i assume it was my battery that has problem. so i bought new battery, fortunately, the new battery came in with 50% of battery juice. but after i try to charged it, the problem still there, the phone still cannot be charged.
this time, i checked with the ampere app for my charging status and found that when plugged in, initially the phone is charging, but after few seconds, the charging stops and it will repeat the charge-stop charge cycle. this is also visible with my charging led light.
however, i dont remember if this charge-stop charge cycle was there initially last week, i only remember it just stops charging, so i didnt know whether this is another problem or the same one initially.
things that i have also tried
1. i also tried changing the charging port to the old one and it didnt do anything, same as im using the new charging port. the problem still there.
2. i also tried using usb file transfer to test whether the charging port are problematic overall or just the charging part is problem. my usb connection has no problem as i can steadily transfer file for few minutes without disconnecting. so i assume my new charging port has no problem then.
3. i also tried flashing stock rom as i thought maybe kernels and stuff from custom rom messing things up. but it also didnt solve it.
4. i also tried turning the phone off and charging it, the phone boots up to charging screen, but the battery keeps dropping instead.
i dont really mind if this phone cant be saved anymore, i already backup important stuff from it, i just wanted to try fixing it for fun now.
also, english is not my first language, sorry if there are parts that is hard to understand.
Maybe some partitions are corrupted(like persist or any other)... search on xda how to flash those partitions. And try flash full MIUI fastboot ROM. Khmm if this doesn't work than I'm out of ideas. You can buy charger for battery only, for playing around until you gonna find a fix. Better than buying new one.
Good luck.