Develop Bugs

Red light flashing.. phone won't boot.

Hello! let's just cut to the chase. I need help..
Couple of days ago I got tired of waiting for the new ota for my phone so I decided to root.. unlocking bootloader went well, installed newest cwm, made a backup of my rom and chose renovate 3.0 as my first rom to try... everything works normal and I update the faux kernel on the rom to version 5b01.. all works normally at this point.. I play games, listen to music, surf the web.. yesterday I then updated the kernel to 5b03.. I went playing dark knigt rises (btw a very good game) and the phone heats up pretty much (which I think is normal as the game is quite heavy and I use wilkyys game booster app). I play about 15minutes and I get the message that the battery is running low, I plug the charger in and continue.. five minutes go and the phone freezes and the screen goes black.. the phone is connected to the charger and the charging light blinks red.. the phone won't start, even when pressing the power key for 10seconds. I can get to the bootloader and recovery _when_ the phone is connected to the charger thou.. if I unplug the charger the phone won't do anything. I search the problem on xda and find some threads about similar problems.. eventually after changing from the wallcharger to the usb charger on my pc (did this many times..) the red light goes solid and I press power and the phone boots normally.. weehee I made it!! or so I thought..
Next day: I woke up and the phone was in charger all night. Battery reads 100%. I load "system tuner" and experiment with undervolting my phone (only -50mv) and run some benchmarks and everything seems working.. I start to download an app from the play store.. the phone freezes and again the same flashing red light is to be seen, I thought it could be because of the undervolt but I'm not sure anymore.. and now I haven't got the phone in working condition.. I have now got the phone in recovery for about three hours and there should be enough juice for it to start but it wont..
I also restored my backup but that didin't help.. with the getvar battery-voltage command it reads about 2500mv which should be enough to atleast power it on?

Hi
elmonen said:
Hello! let's just cut to the chase. I need help..
Couple of days ago I got tired of waiting for the new ota for my phone so I decided to root.. unlocking bootloader went well, installed newest cwm, made a backup of my rom and chose renovate 3.0 as my first rom to try... everything works normal and I update the faux kernel on the rom to version 5b01.. all works normally at this point.. I play games, listen to music, surf the web.. yesterday I then updated the kernel to 5b03.. I went playing dark knigt rises (btw a very good game) and the phone heats up pretty much (which I think is normal as the game is quite heavy and I use wilkyys game booster app). I play about 15minutes and I get the message that the battery is running low, I plug the charger in and continue.. five minutes go and the phone freezes and the screen goes black.. the phone is connected to the charger and the charging light blinks red.. the phone won't start, even when pressing the power key for 10seconds. I can get to the bootloader and recovery _when_ the phone is connected to the charger thou.. if I unplug the charger the phone won't do anything. I search the problem on xda and find some threads about similar problems.. eventually after changing from the wallcharger to the usb charger on my pc (did this many times..) the red light goes solid and I press power and the phone boots normally.. weehee I made it!! or so I thought..
Next day: I woke up and the phone was in charger all night. Battery reads 100%. I load "system tuner" and experiment with undervolting my phone (only -50mv) and run some benchmarks and everything seems working.. I start to download an app from the play store.. the phone freezes and again the same flashing red light is to be seen, I thought it could be because of the undervolt but I'm not sure anymore.. and now I haven't got the phone in working condition.. I have now got the phone in recovery for about three hours and there should be enough juice for it to start but it wont..
I also restored my backup but that didin't help.. with the getvar battery-voltage command it reads about 2500mv which should be enough to atleast power it on?
Click to expand...
Click to collapse
2500mv is far too low for lithium ion batteries. There are protection mechanisms in most lithium ion batteries that will trigger at 2.7volts or lower putting the battery and its protection circuitry into deep sleep.
From the battery university: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries/
Li-ion should never be discharged too low, and there are several safeguards to prevent this from happening. The equipment cuts off when the battery discharges to about 3.0V/cell, stopping the current flow. If the discharge continues to about 2.70V/cell or lower, the battery’s protection circuit puts the battery into a sleep mode. This renders the pack unserviceable and a recharge with most chargers is not possible. To prevent a battery from falling asleep, apply a partial charge before a long storage period.
If this is the case you may not be able to recover easily. We can only assume something went wrong with the phones firmware that caused it to deeply discharge and now protection measures have kicked in.
Regards
Phil

hmm.. thanks for the answer.. last night I got the charging light to stay solid when I plugged the phone in and I was so happy.. but I was so stupid and tried immediatly to turn it on.. it even started and got to the quietly brilliant screen, but died pretty soon and the red light started blinking again.. then I realised I should have kept it charging for a while before trying to turn it on... god damn it..

Hi
elmonen said:
hmm.. thanks for the answer.. last night I got the charging light to stay solid when I plugged the phone in and I was so happy.. but I was so stupid and tried immediatly to turn it on.. it even started and got to the quietly brilliant screen, but died pretty soon and the red light started blinking again.. then I realised I should have kept it charging for a while before trying to turn it on... god damn it..
Click to expand...
Click to collapse
When lithium batteries are deep discharge (below 2.7volt) changes take place which can cause short circuits in the battery, recharging then becomes dangerous, hence the battery goes into a form of safety mode, it's like a fuse blowing. It may never take a charge again, or if it does, the battery life will be less than before.
Hope it recovers okay however if it really did hit 2.5volt it could be permanently damaged now.
Regards
Phil

mine was doing that for a while. Keep it plugged in, if the wall charger doesnt work hook it up to a computer. it will turn on again...

simple keep the phone on charge for few hours and dont touch it.

Ok back to the problem.. the phone was in charger yesterday for about 12hours.. and still won't show any signs of recovery.. blinking red light continues... I might just have to accept that I have to send it in to repair... sigh.. and I think I have to pay for it..
As I said in my first post I have restored a nandroid backup of which I made as soon as I installed cwm.. so I should be at stock firmware? allthou I can't confirm it as I can't get the phone to boot but cwm said restore was succesful.. next step is to install original recovery and relock the phone, am I correct? so next question is.. is there anyway to do this as everytime I try to flash something with flasboot I end up with "failed: low battery"...?

elmonen said:
Ok back to the problem.. the phone was in charger yesterday for about 12hours.. and still won't show any signs of recovery.. blinking red light continues... I might just have to accept that I have to send it in to repair... sigh.. and I think I have to pay for it..
As I said in my first post I have restored a nandroid backup of which I made as soon as I installed cwm.. so I should be at stock firmware? allthou I can't confirm it as I can't get the phone to boot but cwm said restore was succesful.. next step is to install original recovery and relock the phone, am I correct? so next question is.. is there anyway to do this as everytime I try to flash something with flasboot I end up with "failed: low battery"...?
Click to expand...
Click to collapse
I've experienced this kind of problem when I drain the battery flat; naturally, I crapped myself like everyone else since there's no easy way to remove the battery like you would for any other phone.
All I did (and still do) when this happens is hold the power button until the main buttons flash white a few times, let go and it should reboot the phone..

two minutes pressing power button, nothing happens

elmonen said:
two minutes pressing power button, nothing happens
Click to expand...
Click to collapse
did the buttons even flash??
Try holding vol down + power until you get a response, then try holding the power button again ..
for me the key was to get the buttons to flash white, thats when i knew things were gonna be ok! :highfive:

kennylovesyou said:
did the buttons even flash??
Try holding vol down + power until you get a response, then try holding the power button again ..
for me the key was to get the buttons to flash white, thats when i knew things were gonna be ok! :highfive:
Click to expand...
Click to collapse
no response! only response is that when it's in charger I can get to to blootlader and recovery with the vol- power combination..

If it won't charge read this thread. http://forum.xda-developers.com/showthread.php?t=1658084
Helped me out with similar problem.
Hope this helps.
Sent from my HTC One X using XDA Premium HD app

Amicushia said:
If it won't charge read this thread. http://forum.xda-developers.com/showthread.php?t=1658084
Helped me out with similar problem.
Hope this helps.
Sent from my HTC One X using XDA Premium HD app
Click to expand...
Click to collapse
Tried that :/ won't work.. as my phone doesnt restart with the script.. only way to get a response from it is to press power and vol down when in charger...
Thanks for the suggestion thou.

all right.. quick update.. I have sent the phone in for repair.. so just waiting for the repair bill

Ok... update (don't know if anyones interested..) Today I got at txt message from my carrier that the phone is now ready.. and what do you know.. it was covered by warranty. They changed the motherboard and the screen module (I had one dead pixel) needless to say Im pretty happy now.

elmonen said:
Ok... update (don't know if anyones interested..) Today I got at txt message from my carrier that the phone is now ready.. and what do you know.. it was covered by warranty. They changed the motherboard and the screen module (I had one dead pixel) needless to say Im pretty happy now.
Click to expand...
Click to collapse
Don't you just love it when that happens.
I had a rooted phone and my warranty was probably void. A week ago I dropped the phone screen first onto a concrete floor and I expected the worst. Picked it up and turned it on and to my surprise, the screen hadn't cracked. Used it for 5 minutes and it worked as it normally would. When I got back home and wanted to make a call, the screen wouldn't turn on. The lights for the buttons would light up but the screen would remain blank. Calls and texts would come through so the phone worked, just without the screen. After about 10 minutes of tinkering, the screen turned on and I heaved a sigh of relief thinking all was normal again. But when I locked it and tried unlocking it, the screen refused to turn on again. At this point I assumed there would be a loose connection between the MB and screen.
I took the phone to a few repair shops around here to find out how much they would charge and I got quotes around $200. So I decided to try taking it to the vodafone store to see how much it would cost to get HTC to repair the phone. The guy over the counter inspects the phone and finds no physical damage to the screen and says that they'd be glad to replace the phone right then and there at the price of me losing all my data as that would be unrecoverable. I told him I'd be glad to have a replacement on the spot. So in the end, I guess I got a good deal.

Lucky you !
Sent from my HTC One X using XDA Premium HD app

I had the same problem last night:
phone charging with the HTC wallcharger, alarm set.
the device did not ring: it died during the night.
At first, impossible to boot (rom or hboot) or to charge it. I plugged it on my PC and the red light started to flash. One hour later, it was still flashing, so I tried to turn it ON
It turned ON but repported 2% battery only. (ok, that's why it was refusing to boot)
4 hours later, ON and plugged to the HTC wallcharger (that I verified of course), it was still 2%
After three reboots, plug/unplug several times, suddenly battery displayed 44% instead of 2%
Battery monitor repports that indeed, the device charged for the 1st part of the night, then suddenly and very quickly discharged to 0 while plugged, with no particular app to drain the battery.
During the 4 hours it was plugged and ON, it remained 2%, then a sudden 44% after a reboot.....
What the hell is that???? I've now cleaned cache and battery stats in recovery and I'm letting it charging to see if it goes above these 44%
Weird, I really thought my battery had just died....
EDIT: 2 minutes later, it now repports 46%, so seems to charge correctly. But I need to know what happened, I usually relay on my phone alarm to wake up, and if it happens again, it could be a real problem. Maybe I should flash an other recovery, even if I never had a single problem with it?

kennylovesyou said:
did the buttons even flash??
Try holding vol down + power until you get a response, then try holding the power button again ..
for me the key was to get the buttons to flash white, thats when i knew things were gonna be ok! :highfive:
Click to expand...
Click to collapse
I have drained battery, been charging all night with a flashing red LED. No response. Now when I plug it in it still flashes red. When I hold the power button (also power+volume down) the main buttons start flashing white, but no response from the phone whatsoever.
When I let go the power button during the flashing, the lights either go out or stay on..
Any ideas? Thank you!

Flashing Red Light, Now Phone Unresponsive

So I woke up this morning and my phone was A-OK. Charged to 100% overnight, and I left it plugged in while getting ready for work. I came back to it 20 minutes later and it was really warm/borderline hot to the touch (through a case). The battery was down to 85% yet still plugged in. I then drove to the train station 5 minutes away and it went down to near 50%, still really warm/hot.
Streamed some music and watched some Netflix on the 90 minute ride, and the battery was down to 35%. At this point I turned the phone off because it was still hot.
Plugged it in to charge at the office, and got a blinking red light for about 10 seconds. It then went solid red and stayed that way until I unplugged it 4 hours later. The phone was still quite warm, but no longer hot. Hold down the power button... nothing. Plug it back in, same red light pattern. I got nervous at this point and hit up good old El Goog to see what could be wrong.
Found a lot of threads pointing to the One X suffering this fate, along with a few One's. Followed the advise of holding VolUp + VolDown + Power for 2 minutes. The phone got hot again. Unplugged the phone, removed the SIM, and held the buttons again. The phone had cooled off dramatically while doing this, to the point that it is now cold to the touch. Reinserted the SIM, and plugged it in again... no light at all this time.
From this point on, the various threads disagree on the next steps. Plugging it in to the computer yields no light, just like an wall charger. I don't have the HTC cord with me at work. I've tried a Nokia micro USB cable and a Sony wall charger. Other suggestions call for leaving the phone off (like I have a choice on that part) and unplugged for several hours. Others say to mash the Power button for 10-20 times and that may cause it to power on.
Any suggestions on how I should proceed with this? My phone is unlocked, so I'd love to avoid replacing it.

NotATreoFan said:
So I woke up this morning and my phone was A-OK. Charged to 100% overnight, and I left it plugged in while getting ready for work. I came back to it 20 minutes later and it was really warm/borderline hot to the touch (through a case). The battery was down to 85% yet still plugged in. I then drove to the train station 5 minutes away and it went down to near 50%, still really warm/hot.
Streamed some music and watched some Netflix on the 90 minute ride, and the battery was down to 35%. At this point I turned the phone off because it was still hot.
Plugged it in to charge at the office, and got a blinking red light for about 10 seconds. It then went solid red and stayed that way until I unplugged it 4 hours later. The phone was still quite warm, but no longer hot. Hold down the power button... nothing. Plug it back in, same red light pattern. I got nervous at this point and hit up good old El Goog to see what could be wrong.
Found a lot of threads pointing to the One X suffering this fate, along with a few One's. Followed the advise of holding VolUp + VolDown + Power for 2 minutes. The phone got hot again. Unplugged the phone, removed the SIM, and held the buttons again. The phone had cooled off dramatically while doing this, to the point that it is now cold to the touch. Reinserted the SIM, and plugged it in again... no light at all this time.
From this point on, the various threads disagree on the next steps. Plugging it in to the computer yields no light, just like an wall charger. I don't have the HTC cord with me at work. I've tried a Nokia micro USB cable and a Sony wall charger. Other suggestions call for leaving the phone off (like I have a choice on that part) and unplugged for several hours. Others say to mash the Power button for 10-20 times and that may cause it to power on.
Any suggestions on how I should proceed with this? My phone is unlocked, so I'd love to avoid replacing it.
Click to expand...
Click to collapse
Have you tried the bright light trick? Hold the phone under a bright light (really bright light, the brighter the better) and hold down the volume button + power for 15-20 seconds. That should get you into your bootloader. This will tell you whether or not its rom based, or phone based.
If you cant even get into your bootloader, it sounds like a hardware problem. If you can get into your bootloader but it will not boot to your rom, then its software.
Thats all I got for now. Sorry.

Seriously sounds like a battery/charging issue, gives all signs of a discharging battery. That would explain the heat build-up.

Was you using the charger that came with it? Or are you using a different charger? I once used my motorola cord to charge my phone and it felt like it was going to burst in to flames. I then got the HTC cord that came with the phone and it cooled down.
Sent from my HTC6500LVW using Tapatalk 2

No luck on the bright light trick. I tried holding just power, power + down, power + up, and power + both underneath a fairly bright fluorescent light.

Dark Jedi said:
Was you using the charger that came with it? Or are you using a different charger? I once used my motorola cord to charge my phone and it felt like it was going to burst in to flames. I then got the HTC cord that came with the phone and it cooled down.
Sent from my HTC6500LVW using Tapatalk 2
Click to expand...
Click to collapse
I don't have the OEM charger here, but I was using it at home to charge it. I'm hoping leaving it alone for another 4 hours will bring it back to life on the HTC cable.

NotATreoFan said:
No luck on the bright light trick. I tried holding just power, power + down, power + up, and power + both underneath a fairly bright fluorescent light.
Click to expand...
Click to collapse
Lets hope that it didnt turn on because the battery died. Hopefully the OEM HTC cable/charger will fix your issue.
If your battery is truly completely drained, it may take a few seconds for the light to finally come on... so dont freak out in the first 10 seconds.

Your battery could of went bad. Does your phone look like it has swelled anywhere from the battery expanding ?
Sent from my HTC6500LVW using Tapatalk 4

Red5 said:
Lets hope that it didnt turn on because the battery died. Hopefully the OEM HTC cable/charger will fix your issue.
If your battery is truly completely drained, it may take a few seconds for the light to finally come on... so dont freak out in the first 10 seconds.
Click to expand...
Click to collapse
I'm trying to remain calm until I get home. I haven't gotten a light in 30+ minutes of being connected to the Sony charger, but I'm chocking that up to it not being the HTC original.

Dark Jedi said:
Your battery could of went bad. Does your phone look like it has swelled anywhere from the battery expanding ?
Sent from my HTC6500LVW using Tapatalk 4
Click to expand...
Click to collapse
It's tough to properly gauge it with my eyes, but nothing looks off. If I press down on the center of the phone at the top, the it does not lift off the table. If that push from the center at the bottom, it does lift off ever so slightly. But I don't know if this is because of the camera location or what.

Called up Verizon just to make sure there's no other method that I didn't try, and they advised me to get a replacement. I've got a few days to try and get this thing working before I'll have to send it back and say goodbye to root.
Interestingly enough, they were sure to warn me about physical damage and being subject to a $299 charge if there is any damage. But they didn't make any mention about if the device is found to be unlocked.

Well the cooling down certainly could have been the battery finally being completely dead. Maybe stop in a Verizon store to try another battery? No chance a bad SIM card could cause this right?

kennyglass123 said:
Well the cooling down certainly could have been the battery finally being completely dead. Maybe stop in a Verizon store to try another battery? No chance a bad SIM card could cause this right?
Click to expand...
Click to collapse
Try another battery? You mean just pop off the back cover, take out the old battery and try a new one? You're one sick troll.

Red5 said:
Try another battery? You mean just pop off the back cover, take out the old battery and try a new one? You're one sick troll.
Click to expand...
Click to collapse
Yes..very devious!!! I don't know what I was thinking :silly:

kennyglass123 said:
Well the cooling down certainly could have been the battery finally being completely dead. Maybe stop in a Verizon store to try another battery? No chance a bad SIM card could cause this right?
Click to expand...
Click to collapse
I did remove the SIM before doing some of the steps as there were reports that a missing one will cause the phone to pop into recovery. I really hope I can get this one back to life so I don't have to wait for an S-Off exploit to root again.

Got home, plugged it in for several hours, no light. Looks to be quite dead.

Really sorry to hear this man.
I would keep it off 12-24 hours.
try it out.
also I have sent back MANY HTC Dev unlocked phones, they just flash the new software re-setting it back to S-ON, and stock. I don't think they really give a ****, esp if it's not an issue from say, S-OFF.

That's a pisser. My One has been rock solid. Sounds like a really weird issue. I doubt it's recoverable. I'd just go for the replacement. Generally even if it's unlocked they won't have any issue replacing it. In fact, here is Australia, retailers aren't allowed tor efuse warranty claims even if the device has been unlocked, rooted etc...
Perhaps put it into a bag and into the freezer for a few hours. That can sometimes resolve battery issues.

Did I read it correct that you were not able to go into the bootloader? (full Power off > vol down + power)?
If that's the case then you should head for a replacement.. if it is dead they probably wont be able to fire it up to check if its locked or not anyway

PG101 said:
Did I read it correct that you were not able to go into the bootloader? (full Power off > vol down + power)?
If that's the case then you should head for a replacement.. if it is dead they probably wont be able to fire it up to check if its locked or not anyway
Click to expand...
Click to collapse
Very good point, and by the time they do, the guys at the repair center can't physically go and find every rooted phone, then bring it to corporates attention, they get the phones, reflash the software fix the problems listed and out goes another returd. I mean refub, sorry.

HELP! Tab S 10.5 is either frozen or won't turn on

So I've been using my Tab S for a minimum of 3-4 hours a day since I got it in Feb.
It is the Tab S 10.5 32GB version from Best Buy SM-T800
I've never dropped it, scratched it, etc. I've been VERY careful with it.
I installed Iron Rom on it in March (before Lollipop came out), and besides one freeze per month, have had no issue with it (I've also never updated Iron Rom as it never had an issue).
This morning I used the tablet for an hour while it was plugged in (and at 100%). I then unplugged it and put it on a table. An hour later, I went to use it, and the screen stayed black when I pushed any buttons!!
So I tried holding down the power button for 30 seconds. Nothing. I tried plugging it in. Nothing. I tried holding down volume down and power button for 30 seconds. Nothing. I tried holding down all the buttons for 30 seconds. Nothing.. I tried holding volume up, down, and power. Nothing. I tried holding volume down, menu, and power. Nothing. I tried holding volume up, menu, and power. Nothing. Then I repeated the above over and over. NOTHING!
I even waived magnets over it.. (I read it on the internet).. Nothing
This tablet is my daily driver. It won't turn on, it won't show me a charging screen. I'm freaking out! There is no physical damage to the tablet, no one else has touched it.. I'm freaking out man!!
Any suggestions before I jump out the window?

EvanWasHere said:
So I've been using my Tab S for a minimum of 3-4 hours a day since I got it in Feb.
It is the Tab S 10.5 32GB version from Best Buy SM-T800
I've never dropped it, scratched it, etc. I've been VERY careful with it.
I installed Iron Rom on it in March (before Lollipop came out), and besides one freeze per month, have had no issue with it (I've also never updated Iron Rom as it never had an issue).
This morning I used the tablet for an hour while it was plugged in (and at 100%). I then unplugged it and put it on a table. An hour later, I went to use it, and the screen stayed black when I pushed any buttons!!
So I tried holding down the power button for 30 seconds. Nothing. I tried plugging it in. Nothing. I tried holding down volume down and power button for 30 seconds. Nothing. I tried holding down all the buttons for 30 seconds. Nothing.. I tried holding volume up, down, and power. Nothing. I tried holding volume down, menu, and power. Nothing. I tried holding volume up, menu, and power. Nothing. Then I repeated the above over and over. NOTHING!
I even waived magnets over it.. (I read it on the internet).. Nothing
This tablet is my daily driver. It won't turn on, it won't show me a charging screen. I'm freaking out! There is no physical damage to the tablet, no one else has touched it.. I'm freaking out man!!
Any suggestions before I jump out the window?
Click to expand...
Click to collapse
Hi, I think someone had this problem a while back. No matter what he did, it didnt seem to turn on at all. It turns out, it was some sort of hardware problem and even though knox was tripped, it was repaired free of charge. The only thing I can think of is sending it to samsung or something and say something like you were trying to update through kies and this happened ao you can get it repaired since its not your fault. I am leaning towards that this has to be an hardware problem since someone (XDA user FormeriPhoney) had the same issue with his. Hopefully it goes well with your Tab S!

DUHAsianSKILLZ said:
Hi, I think someone had this problem a while back. No matter what he did, it didnt seem to turn on at all. It turns out, it was some sort of hardware problem and even though knox was tripped, it was repaired free of charge. The only thing I can think of is sending it to samsung or something and say something like you were trying to update through kies and this happened ao you can get it repaired since its not your fault. I am leaning towards that this has to be an hardware problem since someone (XDA user FormeriPhoney) had the same issue with his. Hopefully it goes well with your Tab S!
Click to expand...
Click to collapse
Argh.. I talked to Samsung.. They said I would need to send the tablet to them and I would get it fixed/replaced but it would take 2-3 weeks. They have no advanced warranty to send a replacement out first.
The other (and more scummy) option is to go to Best Buy, buy a replacement, and then return this one as a DOA. It would save me 3 weeks of being without a tablet..
This sucks

Try POWER + VOL DOWN.
Hold for at least 30 secs.
If not you may find after a day or so the battery will fully deplete and then start charging.
Do you get any response on the pc when you plug it in?

ashyx said:
Try POWER + VOL DOWN.
Hold for at least 30 secs.
If not you may find after a day or so the battery will fully deplete and then start charging.
Click to expand...
Click to collapse
I did that
Held it down for a few min
Samsung chat had me plug in the tablet and hold down power for a minute
Didn't work
It's unplugged now and on a table.
I'm seriously considering the best buy option
Argh!

EvanWasHere said:
I did that
Held it down for a few min
Samsung chat had me plug in the tablet and hold down power for a minute
Nothing happens.
Argh!
Click to expand...
Click to collapse
Seems like a hardware failure then unfortunately.

ashyx said:
Seems like a hardware failure then unfortunately.
Click to expand...
Click to collapse
Oh.. And no response on a PC.
Yeah. This sucks. The only good news is that I actually backed up a lot to the external memory card last week as I was planning to go lollipop soon. The bad news is that all my customizations and other stuff is not saved (book marks in books I'm reading, etc). My titanium backup is from the first week I got my tablet.
But this is exactly why I won't get a phone without an external memory card. I would have lost everything.

DUHAsianSKILLZ said:
Hopefully it goes well with your Tab S!
Click to expand...
Click to collapse
ashyx said:
If not you may find after a day or so the battery will fully deplete and then start charging.
Click to expand...
Click to collapse
IT"S ALIVE!!!!!!!!!!!!!!!!!!!
I woke up this morning,, resigned to no tablet.. still debating on going to Best Buy and getting a new one.. But I have 12 models coming in today for auditions.. So really don't have time.. But I NEED a tablet for notes with these auditions.
I walk over to the tablet laying dead on the cable.. and try plugging it in... and suddenly.. 0% comes on the screen.. it's sooo beautiful.. I want to make out with the tablet.. My heart leaps with happiness..
I turn on the tablet.. and it boots!!!!! It gets into Android.. and Nova Prime pops on the screen! But.. just as I couldnt get any happier.. it shuts down... It doesnt like booting at 0%.. So I wait another 3 min, half breathless... 1%!!! And I boot again. This time it sticks and I'm able to boot successfully into Android.
So here is my question. WTF happened? How do I avoid this?? Not being able to do a hard reset is some really mess up [email protected]#$%, If I was on a plane or other kind of trip, I would have been pissed... Let alone the wasting of literally 2-3 hours last night trying every single button combination for 2-3min at a time.

I'm surprised hard reset didn't work. I'd try it now it's working just so you know what to expect when you need it.
It may just be a one off. My tablet went into sd card mode once for no reason and that scared the heck out of me. I couldn't do anything. Left it overnight and after the battery ran down it started charging and then booted.
Never done it since.

ashyx said:
I'm surprised hard reset didn't work. I'd try it now it's working just so you know what to expect when you need it.
It may just be a one off. My tablet went into sd card mode once for no reason and that scared the heck out of me. I couldn't do anything. Left it overnight and after the battery ran down it started charging and then booted.
Never done it since.
Click to expand...
Click to collapse
Yup. Holding down the vol - and power after 20 seconds rebooted the tablet.
I would kill for a hard reset pinhole in the tablet.. Or a faster way to quick drain the battery.

Does the microusb port supply power when the tablets is turned off, if it does connect an usb device that will drain the power faster, like an portable hdd.
John.
EvanWasHere said:
Yup. Holding down the vol - and power after 20 seconds rebooted the tablet.
I would kill for a hard reset pinhole in the tablet.. Or a faster way to quick drain the battery.
Click to expand...
Click to collapse

EvanWasHere said:
Yup. Holding down the vol - and power after 20 seconds rebooted the tablet.
I would kill for a hard reset pinhole in the tablet.. Or a faster way to quick drain the battery.
Click to expand...
Click to collapse
I've never known the hard reset not to work, no matter what state the tablet has been in and I've bricked mine God knows how many times.
Only when it dropped into sd card mode did it not work.

check my thread.
http://forum.xda-developers.com/gal...rging-home-t3155261/post61859921#post61859921

Phone switched off overnight

I have recently purchased the A50 and love it. However, this morning I woke up late for work as my phone had switched off during its overnight charge. There was no way to turn it back on until at least 10 minutes after taking it off charge and frantically running to work. Once the phone was on, it had 100% battery.
Does anyone have any idea why this happened? Could it be an overheating issue?
This has never happened to any other phone I've owned.
I have been charging with the cable the A50 comes with but with the S7 plug. Could that be the culprit?
If that's the case I will just use the A50 plug itself.
I have looked everywhere for an answer. This only happened today and may never happen again but I would like to know other people's opinions.

Don't know why this happened,bug somewhere,software update,don't know,but do you really need to leave the phone on an overnight charge,
The treakle charge at 100% is known to cause heating issues, and I hear the a50 is not the most durable phone,.
Strange that it would just turn the phone off completely

manus31 said:
Don't know why this happened,bug somewhere,software update,don't know,but do you really need to leave the phone on an overnight charge,
The treakle charge at 100% is known to cause heating issues, and I hear the a50 is not the most durable phone,.
Strange that it would just turn the phone off completely
Click to expand...
Click to collapse
To be honest, it could have been as simple as electric fluctuation. I have no idea.
I didn't charge last night as I as slightly reluctant to do so.
So far, the phone is working flawlessly and hasn't restarted or shut off on its own. I will eventually charge it once the power drops to almost 0.
Will update so as to let everyone know in case there are similar issues out there.

daveydoo said:
To be honest, it could have been as simple as electric fluctuation. I have no idea.
I didn't charge last night as I as slightly reluctant to do so.
So far, the phone is working flawlessly and hasn't restarted or shut off on its own. I will eventually charge it once the power drops to almost 0.
Will update so as to let everyone know in case there are similar issues out there.
Click to expand...
Click to collapse
sounds like a bad battery in the phone, you should return it. i left it for overnight charging(forgot to remove it) and nothing happened.

kkarakk said:
sounds like a bad battery in the phone, you should return it. i left it for overnight charging(forgot to remove it) and nothing happened.
Click to expand...
Click to collapse
When it happened to me it was the second time I had charged over night, the first time was fine.
I haven't done it since and so far the phone has been fine.

During Update my phone A50, I just press Power button+Vol down button together. After that my phone was off and can not on till now. I tried to press vol up + power button together but it did not work. Can you please Help.

My Samsung A50 just went off by itself after power went off and has refused to come up. Truth is i have charged it several times using this same power and i can tell power is almost stable except that i am using a different charger head to charge for some time now. Wont sill come up, any help or suggestion?

We have several of these A50's and up to now we had 3 of them with this problem.
At the moment that it refuses to turn back on i noticed that the back of the phone is warm , between the top of the phone and the word SAMSUNG . The rest of the phone is cold.
I left the phone alone for about 4 hours without power cable plugged in , after those 4 hours i plugged it in and after a minute it started charging with a indicator of 0% .
You can also try a forced reboot ( hold volume up and down + power button for 5 sec )

Did anyone manage to solve this issue? My girlfriend's A50 has shut down twice overnight now, and the only way to turn it on is by pressing power and volume down for 10 seconds. She has the May update.

Same issue here, i reset my phone to factory settings then install all of my applications and since do that, the issue doesn't occurs any more till now (1 week)

Same here!
Same situation here!
It turned off during the night 3 times now!!
I was late to work The first time, now I have to activate the alarm on my wife's phone, because I don't trust this one anymore.
To turn it back on, you don't need to wait 4 hours, you just have to press power and volume down.
Samsung has to do something about this!

manssons said:
Did anyone manage to solve this issue? My girlfriend's A50 has shut down twice overnight now, and the only way to turn it on is by pressing power and volume down for 10 seconds. She has the May update.
Click to expand...
Click to collapse
That doesn't sound like it's actually turning off. More like it gets stuck with screen off and you're making a forced reboot with the button combination.

tys0n said:
That doesn't sound like it's actually turning off. More like it gets stuck with screen off and you're making a forced reboot with the button combination.
Click to expand...
Click to collapse
Yeah that might actually be the case, and it's completely hung since alarms won't go off. Apparently it does not seem like an isolated case so I guess we'll see what the store says.

Same situation at my A50 to. No notifications,no reaction, no alarm, no reacttion after simple power button press,only black display. It get alive only with described buttons combination-power+vol up .
The problem occure only after night charging time, in the morning.

I was advised not to leave on charge overnight. I have just got this phone and was asking live chat about something else and she mentioned new smart phones did not require full overnight charges and unplug as soon as it’s finished charging.. also that fully discharging battery to 0% is not recommended either and should be charged around 20% to increase the life of the battery. I think I will try that advice. Always had Samsung phones and been happy with my S5 for many years..but it’s very outdated and decided on upgrade but can’t justify the price of S10 lol.

Moto Z Play Shuts Down Randomly

Starting yesterday, my phone began shutting down (seemingly) randomly. Sometimes it would be fine for a few hours, other times it has shut down from simply moving it/putting it in my pocket. There have also been multiple times where it has re-shut down while booting up. The battery charge seems to not matter.
I just booted it into safe mode about half an hour ago and its been fine so far. However, I don't think its an installed app because the phone has worked fine with the same apps for months. Also, I'm not sure an app is the source of the issue if Android wasn't even started. Maybe I'm just being stupid, though.
Any ideas on what the issue could be would be greatly appreciated, though I've been looking for an excuse to buy a new phone anyways, so its not the end of the world if it doesn't work out.
*Edit* Seems like it stays on while charging but when unplugged powers off randomly again.

Wild ass first guess - failing battery.
Sent from my MIX 2S using Tapatalk

dandrumheller said:
Wild ass first guess - failing battery.
Sent from my MIX 2S using Tapatalk
Click to expand...
Click to collapse
Thats what I'm thinking now too. Just wasn't the first thing I thought of since it started out of nowhere.

checkyourfacts said:
Starting yesterday, my phone began shutting down (seemingly) randomly. Sometimes it would be fine for a few hours, other times it has shut down from simply moving it/putting it in my pocket. There have also been multiple times where it has re-shut down while booting up. The battery charge seems to not matter.
I just booted it into safe mode about half an hour ago and its been fine so far. However, I don't think its an installed app because the phone has worked fine with the same apps for months. Also, I'm not sure an app is the source of the issue if Android wasn't even started. Maybe I'm just being stupid, though.
Any ideas on what the issue could be would be greatly appreciated, though I've been looking for an excuse to buy a new phone anyways, so its not the end of the world if it doesn't work out.
*Edit* Seems like it stays on while charging but when unplugged powers off randomly again.
Click to expand...
Click to collapse
Maybe the battery is not well connected to the board? Just a guess

Stayn said:
Maybe the battery is not well connected to the board? Just a guess
Click to expand...
Click to collapse
Also a very valid possibility. However, I'm not sure if this explains how sometimes I can turn the phone right back on again immediately and other times when I plug it in it just flashes the low battery light at the top of the phone and/or does nothing when power button is pressed until two hours later when it randomly turns on from holding the power button for a full minute.
I think I just need to take it into a shop. ?