Phone restarts when removed from charger. - Android Q&A, Help & Troubleshooting

Hello, I have a Galaxy Note II sgh-t889. The phone worked perfect until I recently flashed it to Android 6 with cynogen mod. The phone worked fine for a few weeks, now the phone only powers on when connected to a charger. When removed from charged it goes back to the Samsung note II logo screen and won't boot past. I don't think it's a battery issue as I can boot in bios and it shows the battery is %95 full. It will sit on the logo screen until charger is plugged in, then will boot fine to OS. I've factory reset multiple times to no avail. I've read other forums of users who experienced similar issues and have narrowed it down to a possibly corrupt flash. The problem being, when connected to my pc the phone won't boot to home screen, it just sits on the logo screen. (So Odin does not detect the phone) The solution I was told is to flash it back to stock/oem rom. The problem is I can't get it to bboot to home screen when connected to pc, only on wall charger. If someone could please give me some insight, I would be more than grateful. I don't have the money atm to buy a new phone, so my only option is to try and get this fixed. Also I don't have an external sd. Can someone point me in the right direction of what to do ? I'm so stumped and I can't stand having to pack my phone around on the charger all the time...

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[Q] Stuck on Bootscreen from nowhere

So, my phone's got the standard stock rom, I rooted it, but never flashed it, it has always worked great and hasn't given me any trouble until last night.
I got back from a trip inside my country where it worked great. Then it started running low on battery and shut down.
I went to a friend's house and he had this black berry charger. I pluged it to my phone to charge it and when I tried to turn it on it went on to the "Samsung Galaxy S 2" black and white screen, and started looping on it.
The only "new" "rare" or out of the ordinary thing to it was I had plugged the phone to a blutooth ear piece I bought the day before.
Any ideas?
Has anyone had this same situation?
I looked in the forum, but it seems every loop problem comes out of flashing new roms.
Thanks in advance.
It's possible it could be a battery problem. There have been several threads of boot problems with a fully discharged battery. Sometimes the phone itself can not recharge the battery, and the fix is to use a fully charged other battery, or maybe to buy an external charger for the battery. Not sure if the blackberry charger would have caused a problem. As long as it's a micro usb charger I would think it would be ok.
I have never had a problem like this myself, just reporting some things I have read other people say.
It's likely the voltage is different enough to make the phone unhappy. Can you plug into a PC instead if you don't have access to a "real" charger? It will take forever to charge, but I'll bet it takes care of the boot issue...

[Q] Phone won't boot, can't enter download or recovery

A few days ago my phone got soaked through my pants as I was working in the rain. I came home, dried it out, etc. and tried to turn it on. Wouldn't turn on, so I started charging it. I eventually got it to turn on and it seemed to be working fine except for some reason it said the battery life was at 0 %. Note that it was still working normally otherwise.
I went into recovery, made a backup, and did a factory reset to see if that would fix the problem. It didn't, so I restored the backup. Now the phone won't turn on at all.
When plugged in, it shows the charging battery symbol, and if you hold power to turn the phone on it will sometimes begin to start, but it gets to the boot animation and simply stays there forever (I've left it at the boot animation for several hours to no effect). If I try to boot into recovery it simply does not work; it will either just restart the battery charging animation or boot normally (and then get stuck on the boot animation).
In a last ditch effort, I was going to try to flash a stock ROM from Heimdall. However, I plugged my phone in and tried to enter download mode and was greeted with the error: "LOW BATTERY!! CAN'T DOWNLOAD!!." This was after charging the phone all night. I then proceeded to charge the phone for another hour then try again, to the same error. And now here I am. It seems the problem is that my phone will charge, and the battery will be full but for some reason the phone doesn't recognize that the battery has a charge, so it just thinks it's at 0%. I've tried a different battery and was unsuccessful. Is there any way that I can either force my phone to enter download mode or somehow get it to recognize the charge on the battery? Or is there some other way I could resolve this? Or is my phone simply gone for good?
I am (was) running a rooted I777 with Slim Bean ROM ( I believe v8) 4.2.
Have you tried using a JIG it can be an option
If a JIG doesn't work you can try removing the battery, then plug the phone to the PC and go to download.
But for me the problem is with the battery. If after flashing the ROM you get the same results, don't think it and BUY A NEW BATTERY.
Good luck.
Sent from my Nexus 7 2012.
If I'm bad at English is because I'm from Argentina and I'm learning.
I has the same problema, I spend two days searching on the web, but i didnt have any idea.., ,y problem is. when we conect to ANY charger (car/wall/PC-USB..) appears on screen a batery logo, but the batery never charged..., I tried to enter to the CW but, the keys combination doesnt make anything on the phone, and without live on it, I cant access to CW..., I wait for 2 hrs, with these cell phone conected to charger to see if the it gone works...
ANYONE has another idea for how we resolve these issue? My phone has a stable version of CyanogenMod..
same with me but what i did was put a different battery in, let it charge for a bit then put the original one in and it only started charging after i used my car charger as i was driving to work so thats how i fixed mine.

[Q] Note 2 won't boot unless connected to charger.

The title says it all. My brothers Note 2 will only boot past the Galaxy Note 2 boot screen if it is connected to the charger. It doesn't matter if it is a USB or wall charge. If the phone is connected to a power source it boots into the system fine, however, once you remove it from the power source it turns off. I was wondering if it could be a bad battery but the charge is showing it at almost 80%. Has anyone ran into something like this before? If I try to boot the phone without it being connected, it sits at the Note 2 screen for about 15 seconds and then shuts itself off.
I'm not really sure but it sounds like the internals of the battery are closing up (shorting). Are you able to get another battery to test and see if it is the battery?
Note 2 - Boots , Loops, No SDS Detected as per eMMC checker on play store
chrisjm00 said:
The title says it all. My brothers Note 2 will only boot past the Galaxy Note 2 boot screen if it is connected to the charger. It doesn't matter if it is a USB or wall charge. If the phone is connected to a power source it boots into the system fine, however, once you remove it from the power source it turns off. I was wondering if it could be a bad battery but the charge is showing it at almost 80%. Has anyone ran into something like this before? If I try to boot the phone without it being connected, it sits at the Note 2 screen for about 15 seconds and then shuts itself off.
Click to expand...
Click to collapse
Having same issues
Seems it hardware plus software issue.
Running 4.1.1 Jelly Bean
Happened after installing few games .
Goes in constant boot loop
Can start by attaching power cord only to socket.
With USB attached to Laptop .. still goes in loop
Powerbank is workaround.
Seems to reboot when saving to sd card ..
Will keep posted
technoracy said:
Having same issues
Seems it hardware plus software issue.
Running 4.1.1 Jelly Bean
Happened after installing few games .
Goes in constant boot loop
Can start by attaching power cord only to socket.
With USB attached to Laptop .. still goes in loop
Powerbank is workaround.
Seems to reboot when saving to sd card ..
Will keep posted
Click to expand...
Click to collapse
The problem, after getting a stock image back on the phone, ended up being a bad battery. The phone wouldn't hold a charge even though the charging image showed otherwise. Once you get a working image on there, try replacing the battery. I ordered an eight dollar cheapo battery from Amazon and it worked like a charm.
chrisjm00 said:
The problem, after getting a stock image back on the phone, ended up being a bad battery. The phone wouldn't hold a charge even though the charging image showed otherwise. Once you get a working image on there, try replacing the battery. I ordered an eight dollar cheapo battery from Amazon and it worked like a charm.
Click to expand...
Click to collapse
I second this. My phone went down Saturday. Thought it was something with CyanogenMod 11, but flashing back to stock did nothing. Replaced the battery, haven't had any problems since.
chrisjm00 said:
The problem, after getting a stock image back on the phone, ended up being a bad battery. The phone wouldn't hold a charge even though the charging image showed otherwise. Once you get a working image on there, try replacing the battery. I ordered an eight dollar cheapo battery from Amazon and it worked like a charm.
Click to expand...
Click to collapse
Thats first thing i did .. checked different battery ..
Battery is fine .. its not battery issue .. atleast in my case ..
i checked for SDS .. my phone has no SDS insane bug either .. though symptoms were same .
I have backup phone, using it.
I showed for mobile repair.
Said he will solve it .
So plan to take tomorrow.
I can root and all..
But after this booting dont want to brick it ..
So plan to do it via the mobile repair shop
Had same issue. Solved after replace the battery.
I have the same issue right now as well. I was on stock for awhile and used casual one click method, switched between a few roms. Than it started happening after that. So I flashed back to stock on odin and still have that issue. Havent figured it out yet.
Sent from my SCH-I605 using XDA Free mobile app
Boot cycle loop
DX.Deception said:
I'm not really sure but it sounds like the internals of the battery are closing up (shorting). Are you able to get another battery to test and see if it is the battery?
Click to expand...
Click to collapse
I have had this issue and replacing the battery did the trick. I was having issues with the battery beforehand. once the battery showed as being at 17% the phone would start the reboot cycle and not fully boot until it was plugged in.
Have same problem here.....All these started when I replaced my bulge battery. New battery doesn't hold power below 20%. Phone goes off in boot cycle until plugged in a charger
Try to boot on USB/PC data connection
When connected t PC-system will boot to a point. PC indicates new connection then looses it and Note 2 returns to flash screen. Problem start when using corporate email and encrypted data. Works w/o error connected to wall charger. Disconnect crashes system. Flashes screen forever. No diagnostics. Did all SW reboots. Doubt battery, but will try.
suntreepops said:
When connected t PC-system will boot to a point. PC indicates new connection then looses it and Note 2 returns to flash screen. Problem start when using corporate email and encrypted data. Works w/o error connected to wall charger. Disconnect crashes system. Flashes screen forever. No diagnostics. Did all SW reboots. Doubt battery, but will try.
Click to expand...
Click to collapse
Did you ever test a new battery/figure it out?
Mine is doing the same thing I think. I only boots if connected to a wall charger. If connected to PC with USB it will boot to the [T-Mobile in my case] boot screen, connect to PC for a split second (long enough to make the connection sound in windows, then I can't find it) and it stays on that screen. Without being connected to either, or after pulling plug, it turns off.
Same problem here with mine
can't be just the battery because it will stay on w/o charger when in download/recovery mode or if it gets stuck on the Verizon screen.
___________________________
Verizon Galaxy Note II
model SCH-I605
android 4.4.2
kernel 3.0.31
build KOT49H.I605VRUFND7
hardware version I605.06
I'm having the same issue but i can boot into recovery without the charger.

[Q] Strange boot problem with Sprint GSIII

Howdy,
I'm having a strange problem with my totally stock S3 with the latest android update. I found it dead in my pocket the other day. It was totally unresponsive to the power key.I tried about 5 different batteries to no avail. When I plug it into a car charger, it shows an empty battery with a frozen 'thinking' circle, then turns off. When I plug it into a Samsung wall charger, it does the same 'frozen thinking circle, ' then appears to charge the battery. While it's plugged in to the samsung charger, I can turn it on. It goes through the boot screens, but crashes during the Sprint splash screen. If I unplug the charger, it is completely unresponsive again. I COULD boot into recovery mode (with the samsung charger plugged in), and have tried wiping the cache. I don't want to factory recover it because the data on the phone is more important to me than the hardware. I can't get it to boot into safe mode.
Today I flashed the firmware with ODIN. ODIN says it was successful, but the phone still has exactly the same problem, except that I can't get it to boot into Recovery or Download mode anymore.
Thanks in advance for any ideas.
Eric
This forum is for international version...
Try posting for your version in the specified forum.. Maybe there people can help you...
Sent from my GT-I9300

[Q] Device won't respond w/o charger, and even charging it fails to boot

So... My dad bought this S2 for him a couple of years ago, and on the first 15 days, he let it fell, and the screen broke, but he kept using it like this until around 3 months ago...
Now he has a G2, and the S2 had no use anymore, and I thought about using it as a dashcam on the car...
Installed dailyroad voyager on it, and used as dashcam for about 15 days...
Then today, I got on the car, it was off, but with the charging cable plugged in, I pressed the home button, it said the battery was 100% charged, so I tried turning it on
It went until the animation that plays when booting, but restarted, I tried again about 5 times, each time it rebooted a bit early than before
It got to a point where it didn't even reach the animation, just the "Samsung Galaxy S2" appeared on screen, and rebooted...
Then I tried going on recovery mode, and it worked, so I cleaned the cache partition, made it clean user files, etc... then pressed to reboot, and still didn't work...
So I thought it could be a battery problem, and unplugged the cable while it was on the recovery screen, and it didn't turn off, I let it on the recovery screen, and went to do some work for about 2 hours, it was still on
Now it won't do anything without the cable, can't turn on, can't go to recovery, and even with cable plugged the "Samsung galaxy S2" screen won't appear anymore, and I couldn't get to the recovery screen anymore....
Here's a video of the actual situation:
Does anybody knows what's happening and how to fix?

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