[Q] ZTE Grand X V970 (Tegra) Power Issue - ZTE Grand X V970

Hi, Just got my hands on a ZTE V970 and experiencing some odd issues. The phone seems to randomly drop into an unresponsive state, one where the phone is still powered (confirmed via the notification light) but will not respond to any interaction. A battery pull seems to be the only way to reset the device.
The odd thing is that this only seems to happen on battery power, and from what I can tell only when the battery is below 85%, give or take. I've tested the device for one night and a day connected to a power supply with absolutely no problems at all. But when disconnected within an hour it will begin to randomly die.
Does anyone know what the problem could be? Possibly simply a bad battery?
Thanks in advance
Its the UK Nvidia Tegra 2 version on ICS.

?
I guess I was just wondering if anyone whould know if this is a physical problem with the phone itself, or a firmware issue? I've been searching but haven't come up with much at all.

Music?
OK! So, I've been playing around a little more, and so far it seems if the phone is runnning on battery and I sleep the phone while playing music, it wont die...! So, any ideas whether this would be a firmware or hardware issue?

Swap!
Hey! Just to follow up, I returned the phone for another handset. Been using this new one for a week now and I've had no problems at all

Related

P6810 suddenly won't turn on

Anyone come across this? I put it on standby last night after reading a bit of my book on it, and it had around 50% power remaining. This morning, it was totally unresponsive; pressing the power button does nothing at all. I've charged it for 12 hours in the meantime.
I've done the following all with and without the power attached:
- Pressed and held power for 15 seconds through to a minute
- Pressed and held volume up with power to attempt to get into recovery for up to a minute
- Pressed and held volume down with powerfor up to a minute
- Pressed and held power while touching screen (read that one off another forum)
I guess potentially it could be on and in a crashed state and unresponsive to the power, so maybe in a weeks time when it runs out of juice, I'll be able to charge it and power it back up, but in the meantime, I'd welcome suggestions.
A few weeks ago I updated it to the official ICS build that was released, but did the update myself rather than using KIES, as KIES didn't even recognise my Tab's firmware original version. It's been absolutely fine before the update, and since. I only mention it because I've read about the Samsung build of ICS being prone to self bricking itself, but I couldn't determine what the symptoms of this vulnerability were.
Thanks for any help offered,
Will
did you try connecting USB cable and plugging it into your PC? did u get any activity? can ADB recognize your tab?
I think your tab just ran out of juice and the battery's protection circuit has kicked in. Try taking it to an electronic shop and plugging in different chargers preferably one with an output more than 2.1 amps to kickstart the charging. Plug it in and wait till the charging animation starts.
Sent from my GT-P6800 using xda premium
Had the same problem while on holidays. Once the battery goes below a certain level, you won't be able to charge it through USB any more. Instead you need to use the wall charger.
I think it's bad enough that the 7.7 doesn't have a micro USB port, but things like that are just stupid and Samsung made a big mistake here. It don't think it's the same with the newer tablets though. It's also not possible to just buy cables or chargers for this strange Samsung port, so when you forget your wall charger at home at some point you won't be able to use your tablet any more.
As long as you charge with the USB cable early enough, you can avoid it though.
A few months ago I experienced the same thing, the Tab just wouldn't turn on anymore.
I tried all there is without any luck.
Contacted amazon and they replaced it with a new one in less than 48 hours.
So far not Problems with the new device.
I have the P6800 and this morning I took it off charge. Put it into standby and only used it for about 20 mins then left in standby all day. It had about 95% remaining when I did so.
Picked it up this evening and the lower left area of the screen was warm and it would not switch on. Didn't think of the ADB idea but will try this next time but I had to reset it and when it powered on tonight after the reset, it was down to 15%. Within about 2 mins of checking stuff it was down to 3%.
Something is running when it is in standby but as I can't switch it on I can't check with BetterBatteryStats or CPUState to know what is wrong.
It does this every day. I am tempted to do a factory reset and reinstall only limited software.
Dave...
I see this thread is a little old but this has just happened to my P6810 too. A pity nobody reported back what the end result was.
My device had at least 95% battery last night but today I can't get it to respond at all, I've tried the wall charger and still nothing.
Anything else someone could suggest for me?
Edit. I tried getting anything from it connected to my PC but it couldn't find a device there. However I then tried it on the wall charger again and now get a blue battery icon, quite big, with a five step animation indicating that it is charging.
No idea how it went flat as the battery on this lasts a long time assuming the screen isn't on. When it boots properly I'll have a look at what the most recent apps I installed were as it has only done this once. Before this it has been perfect for the three weeks I've had it.
Cluey said:
I see this thread is a little old but this has just happened to my P6810 too. A pity nobody reported back what the end result was.
My device had at least 95% battery last night but today I can't get it to respond at all, I've tried the wall charger and still nothing.
Anything else someone could suggest for me?
Edit. I tried getting anything from it connected to my PC but it couldn't find a device there. However I then tried it on the wall charger again and now get a blue battery icon, quite big, with a five step animation indicating that it is charging.
No idea how it went flat as the battery on this lasts a long time assuming the screen isn't on. When it boots properly I'll have a look at what the most recent apps I installed were as it has only done this once. Before this it has been perfect for the three weeks I've had it.
Click to expand...
Click to collapse
This is the infamous Sleep-Of-Death issue that is randomly experienced by myself and other users here, usually happens when WiFi bugs out due to weak signal
TeeeJaay said:
This is the infamous Sleep-Of-Death issue that is randomly experienced by myself and other users here, usually happens when WiFi bugs out due to weak signal
Click to expand...
Click to collapse
hhmmm, interesting.
I was having trouble with wifi just before this happened. Both my GS2 and this have been claiming to connect to my wifi but aren't actually getting an IP address from it.
I can't remember if it was last night or the night before but I manually set an IP address, the signal strength is fine as my abode isn't very big.
After it has recharged I'll have a poke and see what I can find, thanks for the reply.
So my device seems to be working fine again. It had gone SO flat that the date and time were incorrect!
After I could power it on I had a look at Better Battery Stats and nothing looked wrong so I have no idea what happened. None of the apps I'd installed the day before it played up had long wakelocks and weren't running when I turned it off.
For reference they were:
My Tracks
MyTrails
Google Earth
AndSMB
I'd turned both of the GPS tracking devices off before I turned it off for the night.
It hasn't played up since but it hasn't been long so I'll see what happens.
Yeah, the sleep of death is incredibly annoying. Honestly, the GTab 7.7 is a **** device. Samsung made way too many mistakes and won't do anything to fix it.
A similar thing happens to me every once in awhile. The way i check to make sure everything alright is to see if it boots into download mode. I just leave it plugged in for a couple hours and it eventually comes back on.
someth1ng said:
Yeah, the sleep of death is incredibly annoying. Honestly, the GTab 7.7 is a **** device. Samsung made way too many mistakes and won't do anything to fix it.
Click to expand...
Click to collapse
this is why my 7.7 is the last tablet/phone from Samsung i'll never trust them they are just bombarding the market with new devices and leaving the old ones to dust
^thats what I thought too but that gs4 is really tempting. I've heard worse about HTC in that regard anyways so that why I'm not going with the one.
Finally.. i bought Sony xperia Z.
I'll sell my galaxy tab 7.7. I.m very disappointed with samsung.
Sent From XPERIA Z
kishd said:
I think your tab just ran out of juice and the battery's protection circuit has kicked in. Try taking it to an electronic shop and plugging in different chargers preferably one with an output more than 2.1 amps to kickstart the charging. Plug it in and wait till the charging animation starts.
Sent from my GT-P6800 using xda premium
Click to expand...
Click to collapse
Unbelievable! ... this trick still works ... thank you very much for you help ...
^^ yo, this 'trickle charge' trick did NOT work on my (long) dead P6800... any other suggestions??
Quite strange because my Samsung GT-P6800 tablet was fully charged, it went completely blank dark as if it was off. To my amazement, SMS keeps dropping and calls kept coming in. Yet it is still as blank as though the tab was off. I pressed the power button and the volume up bottom for it to reboot. It rebooted without the screen coming up. It has been blank for two days now. What could be the cause? And what possible solution can be given?

[Q] Acer Cloudmobile S500 Doesn't stop vibrating

Hi there,
I bought my ACER CLOUDPHONE S500 2 months ago.
Everyting worked fine, I didn't root the phone, nor did I try to. I used the phone for a coupple of weeks until yesterday, all of a sudden it started vibrating constanly. I pulled out the battery and memory card + sim and put only the battery back in. When the battery touches the contacts it starts vibrating again. So even when the phone isn't booted yet, it just start vibrating constantly without stopping.
Pulling out the battery and plugging in only the USB charger does the same (vibrating constantly).
I tried to restore factory defeaults but that doesn't help.
The phone works normally and can be booted (so no black screen or stuff) but just vibrates the whole time.
I normaly live in Belgium, but I'm on holiday in Thailand for 3 months, so I guess returning it back to the store isn't an option now.
I guess it's a hardware problem but if anybody has a sollution, it would be very welcome!
Is there an other way to stop the vibrating?
anybody has a clue?
I posted this yesterday, does anybody know what is wrong?
I guess it's a hardware problem as the vibrations start from the second I plug in a powersource (battery and/or USB-charger)
IS there any way I can stop the vibrations or is it more like a shortcircuit on the vibration part?
It gets very anoying having a constanly vibrating phone in my pants, I guess I'll could give the phone to my GF..
Hi, I never saw that kind of issue on the cloudmobile but I guess you'll be stuck until you can send it back to service. Seems to be hardware related...
Tought it would be a hardware problem... still 2,5 months to go in Thailand before I can turn it back...
Thans anyways!
Dead pixels?
About problems in this phone..
Did anyone note dead pixel on the screen? I read about a lot of users that have this problem...

[Q] Problem: phone dies randomly, sometimes for days...

Hi all,
I would really appreciate some help with my issue on the HTC One S. I've been looking for a solution for weeks now and still don't have a clue on what it could be happening.
The PROBLEM is this: sometimes my One S turns off suddenly. Next, I turn it on but it is very likely to do the same again in a few minutes. If I am lucky, it turns on and works for a while (which can be from hours to days), but if I'm not, the phone is completely dead (not even responding to charge and no matter how I try to boot it) for hours or even days. Finally, I get it again to life when I see it starts charging the battery (always from zero... even if it died at 80% battery).
I had a video on youtube to show you what it happens. What a pity I can't post it here cause of xda-developers rules!
Do you guys have any idea if this could be a battery issue/software issue or anything else?
Additional information:
-Glass is broken (phone works perfectly) but didn't have this issue for one month since the incident.
-Phone has been working now for 2 weeks (it will do it again... I'm quite sure)
-I dropped the phone into the snow a few days before it started to act like this, but dried it quickly.
Sounds like faulty battery or faulty battery connection. That would require opening up the device and either replacing or reconnecting the battery.
Thanks, it is always good to have a second opinion, two minds always think better than one
Just in case anyone else would like to give his opinion, this are other (maybe) useful symptoms: phone reboots in the middle of the night, or, if already turned off, it turns on (and off again sometimes) by its own. Also, sometimes, just before turning off, screen freezes for 1 or 2 seconds. The phone has its bad and good days (thankfully good days are more frequent as time passes), but, in its bad days, it turns off many many times and sometimes it doesn't even completely reboot, I just see first screen then nothing.
Also I have been using car chargers not from HTC in the same while the phone used to have this behaviour (like the Kindle car charger). Actually, once, while using one I bought on eBay, I got a message saying something like "phone has been disconnected from charger to avoid damage".
What could this mean? Battery fault can make this? I appreciate any similar experience or opinions
Bateries are durable now days, I'm afraid that the snow got into your phone and caused a short circuit on motherboard.
Sent from my HTC One S

Nexus 5 camera shutdown (won't boot up)

My issue is that when I take a photo on my Nexus 5 and it is under around 60% of battery it shuts down, the screen just goes black (phone is complexly off and dead) and the device will not respond to ANY input until it is plugged into a power source, then it will boot up and function normally. This issue occurred about two weeks after I installed Android 5 however I do not believe it is related due to factory resets, different roms and the issue is still persisting. When the problem started I had recently (a week or so before) moved to Germany, my initial thoughts were that the battery was the problem as when it first happened the phone rebooted and only had 5% left even though the device had around 50% before I took the photo, from then on the battery life was terrible so I purchased a new battery and installed it. The battery problem was solved (battery life was normal) and when the phone crashed it didn't boot up with any difference to the percentage of battery that was remaining. I am now thinking that something to do with the change in power supplies damaged the device. I think this is unlikely though as Australia (where I am from) and Germany (where I was when the issue started) both run on 240V, the stock power adapter was used just with a euro adapter. I have tried to collect logcats however I can't see any errors before it cuts off (I'm no dev by any means so I could be missing something)
Last thing is that this issue NEVER occurs when the device is charging so I'm thinking that it is a hardware problem. And of course the phone is out of warranty.
Any help or light on this occurrence would be amazing.
Try with some custom camera apps on play store, If that didn't work then i think the problem is with regard to hardware.
Let me know if that worked.
artistavi said:
Try with some custom camera apps on play store, If that didn't work then i think the problem is with regard to hardware.
Let me know if that worked.
Click to expand...
Click to collapse
It didn't seem to help, It also crashes when running Geek Bench 3 so I am thinking that it may be a CPU problem (CPU gets ramped up when taking photos) So I'm not sure what to do, it's beginning to be a major issue. Thanks for your help though.
I also have the exact same problem, I believe it started a while ago. The only thing that seems to help for me is to plug it in as well.. Any news regarding the issue?
How's the motherboard? Is it fried/damaged?
dicecuber said:
How's the motherboard? Is it fried/damaged?
Click to expand...
Click to collapse
It sure doesn't look that way. And it doesn't happen every time. I also kind of got the feeling that it happens when the battery is kind of low.. (Like below 60% or so, at least the last time it was 52)
:/
dicecuber said:
How's the motherboard? Is it fried/damaged?
Click to expand...
Click to collapse
smaaland said:
It sure doesn't look that way. And it doesn't happen every time. I also kind of got the feeling that it happens when the battery is kind of low.. (Like below 60% or so, at least the last time it was 52)
Click to expand...
Click to collapse
My motherboard seems fine. And it also only happens to me when it is below around 60%
@AndroidAndroid88
Did you try fastboot flash system system.img?
Yes I did, I have tried different versions of android from googles factory image page and nothing seems to have helped :/
Does anyone know if the new Android 5.1 update resolves the issue? There's no OTA just yet, but the factory images have been published.
Same issue with my Nexus 5
smaaland said:
Does anyone know if the new Android 5.1 update resolves the issue? There's no OTA just yet, but the factory images have been published.
Click to expand...
Click to collapse
I ran into the same issue with my N5. It started happening for me when I flashed to version 5.1 (factory image).
same problem here
I have the same problem. It is worst since I replaced the battery some days ago, and actually it just happened again while I was trying to reply to this thread, not using the camera (but it's the first time it happens while not taking pictures).
Anybody got some new info? I'm on 5.1, btw.
i am trying to fix my friends phone. she has a nexus 5, and as the battery was only lasting 8 hours, she decided to buy a new battery and replace it.
since the replacement, the phone shuts off randomly, once she takes a picture.
it can only be powered back on, if it is plugged into a charger.
now we changed the original LG battery into the phone, but since 7 days there is not one reboot with the original battery.
she did buy 2 "original" batteries from ebay, and the polar battery with 2450a but all 3 batteries have the same issue.
as the original LG battery has no issues, i suspect that the non-original fake china copies sold on ebay and amazon have a problem.
now she has ordered the original battery from LG directly, and once that one is tested i will post a comment again.
cheers thomas
I also have the problem (using Polarcell Akku for my Nexus 5).
Switched back to the original Battery: Problem solved.
Gesendet von meinem Androiden mit Tapatalk Pro
I'll swap the original battery in
I'll update you on what happens
Found the issue
So it looks like that was the issue, the old battery has its own problems but the issue with it shutting down when the phone was under load has stopped.
Anyone know where I can get a genuine battery in Australia?
confirmed new original/genuine bateries have the same problem. Tested with Lg direct supply battery, pollarcell 2450 battery, eBay battery (seems exactly the same as original LG supply, so i believe is it genuine too).
i think the problem isn't the battery at all, the phone is also eating more power, then under high load conditions and low battery charge (no really need to be low) adding the flashligh comsumption discharges all the capacitors on the main power line and the phone hangs.
a rare thing makes the original unbranded battery wich came with the phone to work well even if battery autonomy is broken. I'll try this weekend to transplant the small ciruit boar of the real original battery of the phone into another of the new ones i have. Maybe the output power regulator itself need to relax a bit to keep the main power line with battery voltage current all the time. And the new ones aren't relaxed...
i'll post again until few tests during this weekend.
That would be awesome but I do believe that in my case it was battery related as I replaced my battery about a week ago and it hasn't happened since, I've tried many many times even when the battery was on 2% and it still didn't crash I bought the replacement on eBay (I believe it's genuine) and everything seems to work correctly. I'll be interested to see your test results though.
I started to have the same exact issue with my Nexus 5 camera and it won't boot until I connect it to a charger. I noticed that when I turn off the flash this issue disappears.
Ahmednn said:
I started to have the same exact issue with my Nexus 5 camera and it won't boot until I connect it to a charger. I noticed that when I turn off the flash this issue disappears.
Click to expand...
Click to collapse
same issue here... anyone has an idea if there some log-files that can be checked in order to see what process can be related to this issue?

[Completed] [Q] Phone dead for no reason (Huawei G620s)

Hi there!
So here's the story - this morning I woke up to find that my one month old Huawei G620s (stock, no root or anything) is not working anymore. Just before I went to bed, I set the alarms and left it charging next to my bed with 46% battery. Everything was fine. But when I woke up this morning and wanted to check the time, I realised that my phone is completely dead. And I really mean dead. Usually when it's charging, there's a light in the upper left corner, but it wasn't on. I tried holding the power button for a minute or two, still nothing. Then I tried connecting it to my computer, no results. Since it has a non-removable battery, I couldn't pull that out either and for warranty purposes, I didn't even try. I already took it to my operator's shop and they sent it to the warranty guys since I figured there's nothing I could possibly do if the phone doesn't even recognize the charger.
Probably not a software problem since then the charging light would work at least. But I'm still curious - what the hell happened? Has anyone had any similar experiences or could you at least offer some insight into what could be the problem?
Hi, thank you for using XDA Assist. It's not unheard of that a device just goes dead. It's sounds like that happened to you. It could be caused by a number of hardware failures. It sounds like it's time to use your warranty.

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