SM-T560 charge/boot issue. - Android Q&A, Help & Troubleshooting

Hi,
I got hold of one of these tablets that appeared dead, left it charging overnight and it started without issue, the battery was at 67% at this point.
I then shut it down and held the Home + VolUp + Power to enter download mode as I wanted to install TWRP.
Nothing happened, but not only that, the tablet failed to boot again whatsoever. I took the back off and unplugged the battery, held the power button down for 30-40 seconds, reattached battery, still nothing, so I decided to leave it on charge for a bit more and try to figure it out later.
Later came along, and I picked up the tablet and for some reason pushed the home button 3 times and it displayed the battery icon, showing 100%, great!
It still won't boot though and I haven;t been able to reproduce whatever I did to get it to show the battery icon again.
I've tried every combination of holding down Home/VolUp/VolDown and Power that I can think of for different amounts of time and still nothing.
Had it plugged into the computer too and monitored dmesg for any signs of life and still nothing.
I'm thinking (but hoping not) that it might be a physical problem with the power button, but it feels fine when pressed.
Is there some magic trick that I don't know about that could help here?
Many thanks.,
g
EDIT: I have left it plugged in for a few hours and periodically the battery icon appears for a while (now at 99%), then disappears. Tried to switch it on with the power button while the icon is on the screen but no go, same with different button combos.

Related

Help! Galaxy Tab won't turn on!

I was watching a YouTube video, and my Tab just shut down. It did feel really hot on the back, now that I think about it.
But I've tried everything! Keeping it plugged into the wall, hold power for 30 seconds while touching screen, holding for 15 then for 7, Volume Up + Power, Volume Down + Power, and plugging it into the wall. Nothing's working.
I have a Metallic Grey 32GB with the latest TouchWiz Rom.
Please help.
i had the same - it seem to have restarted by having it plugged in the PC and then pressing Power + Volume up and volume down all at the same time ... strange though
I've had it for about 9 days and have used it every single day. Last night I downloaded 2 movies onto it and everything was fine. Today it would not power on one bit! I charged it over night so the battery shouldn't have drained. I ended up fixing my problem by doing the following:
Held the power button.
At the same time, placed a finger on the screen.
Held it down for 15 seconds or more and it booted up!
Not sure why it only worked when I put my finger on the screen.
I ended up exchanging it either way just in case.
i had a similar experience when it looked like the images on my screen was tarring and making really odd graphical errors, and then shut off... but i could see that the backlight was still on.. So i help power button untill backlight turned off.. and then plugged it into the charger and turned it on holding the power down button, which luckly got me into recovery.. i then reflashed the kernel, seems to have been a dodgy flash, but its working now..

[Q] Sudden, rapid discharge - will not power up

Hello All,
Been reading threads regarding similar issues since my issue occurred last night, but none of the fixes seem to do the trick for me. I am on AOCP CP2 basically since the time I got my Note, and haven't had any issues with battery, charging, or anything else for that matter. Last night my phone gave me a 15% battery warning, and by the time I checked it 5 minutes later, it was down to 1%. I went and plugged it in, and it had died by the time I got to the charger. Plugged it in and an empty battery symbol with the 'refresh' icon in the center appeared. Let it sit for about an hour then came back to power it up.
- A normal length press of the power button did nothing
- Holding the power button for about 10 seconds yielded three vibrations, then the display of the empty battery with refresh icon, which promptly disappeared
- Holding power + vol. up, power + vol down, all three, power + home + vol, all result in the same as above
-Computer does not recognize the phone via usb
-Removing the battery and connecting to computer via usb makes the phone vibrate repeatedly. Adding the battery while this is happening gives 3 vibrations and the dead battery with refresh icon on the screen
Tried:
-Leaving it plugged into charger overnight
-Removing battery/sim/sd card for various lengths of time
-Holding power button down with battery removed
-cleaned usb port with toothbrush (wasn't that dirty to begin with and hasn't seen water)
I don't have an extra battery or charger to test things out with at the moment, but if anyone has any insight beyond the things I've already tried and read, it would be greatly appreciated! Happy Thanksgiving!
jshil said:
Hello All,
Been reading threads regarding similar issues since my issue occurred last night, but none of the fixes seem to do the trick for me. I am on AOCP CP2 basically since the time I got my Note, and haven't had any issues with battery, charging, or anything else for that matter. Last night my phone gave me a 15% battery warning, and by the time I checked it 5 minutes later, it was down to 1%. I went and plugged it in, and it had died by the time I got to the charger. Plugged it in and an empty battery symbol with the 'refresh' icon in the center appeared. Let it sit for about an hour then came back to power it up.
- A normal length press of the power button did nothing
- Holding the power button for about 10 seconds yielded three vibrations, then the display of the empty battery with refresh icon, which promptly disappeared
- Holding power + vol. up, power + vol down, all three, power + home + vol, all result in the same as above
-Computer does not recognize the phone via usb
-Removing the battery and connecting to computer via usb makes the phone vibrate repeatedly. Adding the battery while this is happening gives 3 vibrations and the dead battery with refresh icon on the screen
Tried:
-Leaving it plugged into charger overnight
-Removing battery/sim/sd card for various lengths of time
-Holding power button down with battery removed
-cleaned usb port with toothbrush (wasn't that dirty to begin with and hasn't seen water)
I don't have an extra battery or charger to test things out with at the moment, but if anyone has any insight beyond the things I've already tried and read, it would be greatly appreciated! Happy Thanksgiving!
Click to expand...
Click to collapse
try to charge ur battery on another phone or replace it with a frined's one... and then power on ur phone
This happened to me few times.
After charging it for a bit, I removed battery and put it back. Long hold power.
I just repeat this and eventually it will turn on.
ddochi11 said:
This happened to me few times.
After charging it for a bit, I removed battery and put it back. Long hold power.
I just repeat this and eventually it will turn on.
Click to expand...
Click to collapse
In my experience on i717, it happened just few times, only with "The Collective" jb rom... cp 4.2

screen all of a sudden wont go on just flashes

Battery was low this morning so plugged it in a few hours ago left it plugged in for a while didnt look at it once took it off charger went to power it on and the screen just flashes nothing is on it just flashes as if its going on but it doesnt, tried holding the power and home button and it says to press power for recovery or home for factory mode, tried both and nothing happends. Tried holding down the power button for over a minute and screen just kept flashing on and off every 2 seconds. Don't have my lil screw driver with me again i should just keep it in my pocket for battery pulls with the issues ive had lately.
Running a Callisto 100 with loki's most recent firmware release. any thoughts? other than battery pull when i get home?
edit: got home did battery pull tried again still didnt work noticed charger at work wasnt charging the watch when i had plugged it in i guess it was unplugged from under my desk. tried charging at home now alls good again

Battery death bootloop!

Im on a trip, and my battery died. When I got to the hotel, I immediately plugged in my tablet. As soon as it got to 1%, it started booting up, but because of how much battery it uses just to boot, it basically died a second or two after it booted up. Then, it repeats. As soon as it gest 1%, it starts turning on again, then when it gets to the lockscreen, it powers down. It's like a bootloop, but I can't get out of it :crying:
Uclydde said:
Im on a trip, and my battery died. When I got to the hotel, I immediately plugged in my tablet. As soon as it got to 1%, it started booting up, but because of how much battery it uses just to boot, it basically died a second or two after it booted up. Then, it repeats. As soon as it gest 1%, it starts turning on again, then when it gets to the lockscreen, it powers down. It's like a bootloop, but I can't get out of it :crying:
Click to expand...
Click to collapse
You try holding the pwr button for about 10 seconds or maybe longer when it's trying to boot? It might force it to just shut down.
There's a "forced Shutdown" button right by the SD card slot (it's colored yellow in my sgp561, maybe different for other sub-models). Press that button for 10+ seconds using paper clip tip or similar pointed object and it will shutdown completely.
Another possible solution is to plug the charging usb cable to a high current usb charger (4 amp+) that should be able to supply the energy demand at close to 0% battery charge.
Another option will be to boot into bootloader. Bootloader uses barely any battery. When it's not plugged in and off, press and hold power+volume down. Then plug in. You could try to do that while plugged in, but likely not to work.

Unusual battery drop. Will not charge or change battery from 20%. Phone unresponsive.

Long story short. Another Z compact down. This time it's my Z5C.
Unrooted Z5C E5823. I flashed some marshmallow from xperifirm (build 32.2.A.5.11) some 8 months ago...
Description of events:
Just finished texting. Turned screen off. I go to turn it on again but the phone turned off, because pressing the power button doesn't do jack. Long press it and doesn't turn on.
... great.
Volume down + power button and it turns on after 3 vibrates. Battery level plummeted from ~70% to 20%. So I just put it on a wall charger and wait.
Some 20 minutes later, I'm surprised to see that the phone is still at 20%. So at this point I'm sure something is very wrong and I start browsing for solutions. Nothing worked.
The only thing I didn't do is a factory reset. But I seriously doubt it's a software problem.
So I say "screw it" and I unplug it from the charger and start using it normally. At some point the phone turns off on itself so I have to do the volume down + power button combo again. But this time, alas, it doesn't work either. So I try the little yellow "off" button on the SD bay + holding power button. This time the phone vibrates 3 times. Then I turn he phone on again. But this time it turns off after some 40 seconds. Then it began a short power on/off cycle and then remained off. Won't turn on. Like if it was hard bricked. I fiddled with the yellow off button while plugged in on the charger and it turned on again but still won't go past or below 20%. Ever.
I remove it from the charger and go home from work. Phone is unresponsive. PC doesn't recognize it. No key combination works. Charger and key combinations don't do jack. But THEN out of the blue, I sense 3 very faint vibrations (i just kept trying to power it on, I wasn't giving up ) and now the phone is on again. Battery at 20%, obviously. Service menu doesn't have a battery test anymore. How convenient... Battery usage menu is always the same when I turn it on. PAst history is gone, app % use are all the same ratios.
I'm trying to backup my data now. But at the meantime. Phone is on and still stuck at 20%.
So, is the battery dead? Wth is going on?
i have smailer problem
my phone wont pass the 90% . also after factory rest (stock rom\kernel\no root\lockedBT)
still, im not sure 100% is my batt i think is started from android 6 (now im at 7)
also my phone wont pass some voltage also (4.300) was 4.350 when the phone was new with 5.1.1
but in QC2 quick charger its 4.308volt max with 92% so i dont know whats goin on:|
hi,
I had same problem somes weeks ago.
try flash new rom, phone stuck at 20% but seems to have same battery's autonomy .
after a week I changed the battery, now all works fine
I think this is the lithium controller that is dead not the battery itself .
Battery and turn off problem
My Device have charge (50,60,70 or more), unnexpected it show 0% and turn off.
Hardware problem maybe ???

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