[Q] hang and reboot, how can I find why? - Acer Iconia A700 and A510

Hi,
my A700 hangs or reboots some times. How can I find why?
On multiple apps, like Browser, Email, Music (in flying offline mode) ... some times the tablet hangs completely. The only way to get the tablet working is hold the power button for some seconds.
sometimes the tablet does a reboot within multiple applications.
How can I find what can be the problem. This issue is sporadic one ore two times a day. If I send the tablet to acer, I think they don't find this sporadic phenomenon.
Android 4.1.1, reset don't help, some hours there is no problem.
I'm confused.
any ideas?

Do you have a sdcard inserted?

LordYuuki said:
Do you have a sdcard inserted?
Click to expand...
Click to collapse
No.
That was my first idea. I run the tablet without sdcard about three weeks. the reboots and hanging issue is still there.
I think, the issue occurs if i tab or multitab/zoom on screen. but I can't retrace it any times.
any other ideas?

ks2 said:
Hi,
my A700 hangs or reboots some times. How can I find why?
On multiple apps, like Browser, Email, Music (in flying offline mode) ... some times the tablet hangs completely. The only way to get the tablet working is hold the power button for some seconds.
sometimes the tablet does a reboot within multiple applications.
How can I find what can be the problem. This issue is sporadic one ore two times a day. If I send the tablet to acer, I think they don't find this sporadic phenomenon.
Android 4.1.1, reset don't help, some hours there is no problem.
I'm confused.
any ideas?
Click to expand...
Click to collapse
Hi,
Do not want to worry you, but mine had same strange behaviour (especially reboot while playing music) and I was getting through it as it was time to times.
Last week it did not reboot and end into this infinite starting loop (restart just after Acer and Iconia Tab logos).
'hope you do not get the same.

Run adb logcat. Typically you may find the error, and it's probably a rogue app. Then just do the things you know will cause it to hang. Then check your logcat.
MD

wipe it...
or try Terminal and read logs

Related

[Q] Has anyone else had the touch screen stop working after the new update (UK)

My TF has done this three times now since yesterday's FOTA. The device hasn't crashed as I can still use ADB and the notification bar relects the true battery status, time etc. I can also turn the screen on and off with the power button but I can't unlock it due to the screen not accepting touch input.
This happens regardless if use a custom rom or not.
Has anyone else had this experience?
Roach2010 said:
My TF has done this three times now since yesterday's FOTA. The device hasn't crashed as I can still use ADB and the notification bar relects the true battery status, time etc. I can also turn the screen on and off with the power button but I can't unlock it due to the screen not accepting touch input.
This happens regardless if use a custom rom or not.
Has anyone else had this experience?
Click to expand...
Click to collapse
My device had this issue, but with the 3/25(?) firmware (it came from overseas -- Taiwan). I basically thought I had a brick, but yesterday I used not-quite-pristine US system.img via a nandroid backup, and it brought it back to life. Still working, 18 hours later (and with the latest OTA update).
If you still have cwm / nandroid access, PM me and I'll post up the system.img that I used to fix my issue, yesterday. It was basically an image I found on Android Central, and I yaff2'd it and added my own md5sum so that nandroid could recognize it. My ongoing concern is that the permissions could be all screwy and softlinks could be broken. But, given the choice of that versus a bricked tablet, I could live with broken softlinks.
mine has done it 3 time while playing fruit ninja but only while playing that and not whit normal use as browsing and all that
Fisken said:
mine has done it 3 time while playing fruit ninja but only while playing that and not whit normal use as browsing and all that
Click to expand...
Click to collapse
Same here. Touchscreen stopped responding while playing that game, but that happened even before the OTA.
How can you get it to start responding again or force a reboot? I just got mine in the mail, pushed the lock button, and now it won't respond to any of my touches. Stuck at the lock screen.
jonnyktyler said:
How can you get it to start responding again or force a reboot? I just got mine in the mail, pushed the lock button, and now it won't respond to any of my touches. Stuck at the lock screen.
Click to expand...
Click to collapse
Hold the power button for 10-12 seconds to force power it off. Release button. Wait a couple seconds. Power on as normal (a 5-6 second hold down of the power button). If still no joy... you're screwed perhaps.
ok thanks a lot holding the power button down for a long time did force it to turn off, now it's working again.

Phone Freezing and Won't Start Properly

Hi all,
I recently tried changing the wallpaper on my phone from a live background to regular image. The background went black and the phone froze.
I removed the battery and restarted the phone but it now often freezes on the LG logo. When it does occasionally start up the touch screen will not respond so I cannot get past my lock pattern. If I press the stand by button at the top of the phone, the screen goes off and cannot be turned on again, but the phone is still running - as I can tell this when connected to the computer.
I don't have my phone rooted and do not know much about that. I was hoping there was a way to fix this without having to lose all of my data or root/mod my phone. Otherwise I would be happy just to have my phone working.
Can anyone please help with this problem or tell me why the touch screen will not respond the times it does start up?
Cheers
UPDATE - I started the phone holding the volume button down and went into the recovery mode. I'm not sure exactly which option I then selected, as I hit the home key a couple of times, but I think it was "Clear cache and recovery" or something similar.
The phone managed to start back up with all my apps and photos, etc. Although I had to go through the startup wizard again and sign into the Market, LG World, etc.
Now I have a problem with quite a few of my apps. Whenever I click on them, they start very briefly and then I get the message "The application had stopped unexpectedly. Please try again" and have to force close. This happens with apps such as Adobe Reader, GTA 3 and Viber, so it's not a specific type of app.
I also noticed with the few apps that work, data is missing from some and not others. For example, I still have high scores in one game, but not in another.
Does anyone know what the problem is here or why this recovery is maybe causing this?
Thanks very much
Still haven't fixed this problem if anyone could please help. Most of the apps before the recovery still force close upon starting.
Some of these can be fixed temporarily by moving to phone/SD depending on location, but this only lasts for so long, before I have to move again. Others will open up each time as though it's the first opening of the app, e.g. Do you accept....
Apps downloaded after the recovery seem to work fine.
Any suggestions people?

a510 power button problem

Hi dear community!
Got a problem with the power button of my a510. Sometimes when the device is in standby and I want to switch it on by pressing the power button nothing happens and rest totally unresponsive. I have to push it like 10-20 times and even connect the charger to get reaction. Once the device is switched on the power button works normal. I suppose its some kind of freezing of the device in standby mode that blocks the power button. Is it a common problem and what can I do? Thanks in advance for advise!
First thing I would try is to reboot it (press power button for a few second and let it shut down, then restart it). If this is not helping I would hardreset it (reset hole left to power/usb-connector).
And if not this is making it better make a factory reset (from the settings). Keep in mind that you will loose all data and have to start from scratch with your tablet.
Thanks! One question though, do the hardreset from the hole left to power/usb-connector do the same thing as factory reset from the settings - loosing all the data?
ozonbg said:
Thanks! One question though, do the hardreset from the hole left to power/usb-connector do the same thing as factory reset from the settings - loosing all the data?
Click to expand...
Click to collapse
Nope. The pinhole reset thingee is similar to the reset button on a CPU. It simply hard reboots the system (supposedly used when the device freezes, since we can't "pull the battery" like what we do with phones).
Reading through your OP though, I actually recommend sending the tablet back to the shop. I don't have that, nor have I heard of that issue.
I don't have this problem, you'd better send it to service.
I think I found the problem wnen seeing the log from the device. It's a freezing situation. The device become unresponsive and that's why the power button doesnt work when pressed. After second long press it reboots the device. So the button works.
In one of those freezings console says: Unsafe JavaScript attenmp to access frame with URL.. So I disabled java in the stock browser and will keep reading log for further freezes.
hi i was getting that issue.
a factory reset stopped it but recently it came back.
im overseas for 2 months asking acer the immeditaely said to return device for repair.
have to wait now.
Also jist the other day i got three freezes screen went pink completely.
once it went yellow.
i would sugest talk to acer as i know mine now is def faulty after the screen issue.
Hi,
so I realized that a couple of days after buying the thing I disabled some of the apps that comes with it in order to save some RAM, but maybe disabling them causes other apps to misbehave. And thats why sometimes device freezes compleatly. Now I'm checking this theory. Sorry for my English.
What did you use to disable them?
From settings - > apps, then choose a system app and there is a option to disable it.
Another thing. So I'm playing a lot and when some game suddenly stop responding I force closing it. Even this game is already closed after like 10-15min. the device freezes and only rebooting it saves the situation.
ozonbg said:
Hi,
so I realized that a couple of days after buying the thing I disabled some of the apps that comes with it in order to save some RAM, but maybe disabling them causes other apps to misbehave. And thats why sometimes device freezes compleatly. Now I'm checking this theory. Sorry for my English.
Click to expand...
Click to collapse
I disabled alot of stock apps as well. My tab is running fine though. You can maybe list down what you've disabled and I'll confirm if they're disabled on mine too?
Couple of days observation lead me to the conclusion that the freezing is due to unresponding processes left in the memory most likely a high demanding 3d games such Dead trigger, Asphalt 7 or Dark knight.
Edit:
It might be a bad freezing flash player mostly used through stock browser.
i tried this way too..but it freezes also when it's fresh from a hard reset
i don't know if it's an app issue...or whatever.
but i just got a new a510 as replacement of my old one that kept freezing...and also this replacement keeps freezing
i didn0t disable any native app...nor installed any new app. just got it...and freezes the same.
When watching flash video in stock browser and when exit watching, the browser sometimes freezes and needs to be force closed to function again. When left whitout force closing it eventually after some time causes general freeze. That's happening also when a game crashes and left in memory that way. Needs to force close everything that crashes. For example when watching HD Cams in Earthcam.com often browser crashes when closing it or when I play Tower Defense game crashes a lot. Afterwards the whole system freezes.
That's my assumption as above all monitoring I've done.
Let's hope Acer will have fix in Jelly Bean update.
in the newer firmwares are freezes still found? i noticed that all my italian friends stuck with 1044 experience them...maybe later ones solve it?
There is no new firmware, but will be most likely.
there are lots of ota after 1.044 ww.
germany is at 1.099 stock....
i'd like to hear something from who uses it ...

[Q] Touchscreen freezing randomly - please help!

Hi, I've been using ViperS 5.1.2 for some time now on my Sensation XE, and it used to work great for me. But since a few days I've got this really annoying freezing problem and I just cannot find a solution.
The touch screen just freezes without any reason, sometimes after using the phone for half an hour, but most of the time within a few seconds after unlocking the screen. When it freezes, the screen won't respond to anything, also not on the back or home button. If I use the on/off button though, the screen will respond again for one or more seconds. This happens randomly; a lot of times I can't even unlock the screen properly, and the rest of the time I only get the screen working normal for a at most 10 seconds. This way it can take a few minutes just getting to the settings menu, for example. The phone does not report any error; after using the on/off button it just goes on where it froze. Also the phone reacts to tilting the screen. Or when playing a video, this just keeps playing normally. So it seems to be purely the screen itself...
I tried a lot to figure out what could be the cause of this problem: uninstalled a lot of recently installed or updated apps, checked the amount of free space/RAM, cleared cache, Dalvik, used nandroid backups to return to a previous (in the past good working) state, tried if removing the sd card would make any difference and finally flashed the rom again. All to no avail; the problem keeps occurring. At first, after trying out a possible solution like the ones I've mentioned, it looks like this did the trick. Sometimes the phone appears to work normal for at most half an hour. But then the problem occurs again, and will at that point occur at a high frequency.
I am out of idea's right now and am getting quite desperate. I need this phone to work properly badly, as I will go on my vacation in a few days and really need to be able to use some of my apps then. So I do hope somebody can help me out here? Any help would be greatly appreciated!
Does it do this while connected to the charger or usb.??
sent by v.konvict
v.konvict said:
Does it do this while connected to the charger or usb.??
sent by v.konvict
Click to expand...
Click to collapse
Yes, does not make any difference. I found today that the phone is now also acting strange in clockworkmod recovery touch, that's for the first time. Can't properly use the touch screen there either any more, only with hardware buttons. So now I guess this should really be a hardware issue. Maybe the phone is just dying...
Yess its a common thing for our phone to act that way while charging.... It has somtheing to do with its poor grounding. You can find threads to help u with how to solve it.
sent by v.konvict

Random screen crashes, freezes, glitches

Hello! I have a stock Android Lollipop 5.0.1 Nexus 5 and for the past week or so I have been experiencing a weird issue.
The device randomly crashes. By "crashes" I mean the screen goes black, but the backlight is still on (it's a lighted black). I can push the power button and it will turn completely black (locked) and if I push it once more it turns lighted black again.
To get the device back into usable state I have to keep the power button pressed until the phone resets. Sometimes I keep it pushed for a full minute and nothing happens, sometimes 10 seconds are enough. Sometimes it will go through the "Google" logo and then stay in the lighted black state until I finally manage to reboot it again. Sometimes it crashes again right after it boots up.
It's weird because a lot of the times it's ok throughout the day and then when I go out in the evening, I take it out of the pocket and I see it crashed. Sometimes it crashes while I actually use it.
Last night it started doing something else: instead of lighted black, the screen is filled with static noise. It doesn't move or anything, it's a still image. Today, when a crash like that occurred, the screen glitched first (random lines on the screen, some parts got moved, really weird). I will get some photos if it happens again.
The problem is that I can't identify what's causing it. There is no particular app or action that I do / use that triggers this. It also doesn't seem to be movement-based, as it sometimes happens while it's sitting still on a table.
I updated to 5.0.1 about a day before this started happening, but I'm still not sure if it's software or hardware-based.
I tried a factory reset and booting into safe mode, none of these helped. I will only consider flashing a custom ROM as a final resort, because I'm not sure if it voids the warranty.
PS: the device is still under warranty, but I'm away for the holidays and will be until the beginning of the next year. And I'd like to have a usable device, especially while I'll be on the road.
Smith_S9 said:
Hello! I have a stock Android Lollipop 5.0.1 Nexus 5 and for the past week or so I have been experiencing a weird issue.
The device randomly crashes. By "crashes" I mean the screen goes black, but the backlight is still on (it's a lighted black). I can push the power button and it will turn completely black (locked) and if I push it once more it turns lighted black again.
To get the device back into usable state I have to keep the power button pressed until the phone resets. Sometimes I keep it pushed for a full minute and nothing happens, sometimes 10 seconds are enough. Sometimes it will go through the "Google" logo and then stay in the lighted black state until I finally manage to reboot it again. Sometimes it crashes again right after it boots up.
It's weird because a lot of the times it's ok throughout the day and then when I go out in the evening, I take it out of the pocket and I see it crashed. Sometimes it crashes while I actually use it.
Last night it started doing something else: instead of lighted black, the screen is filled with static noise. It doesn't move or anything, it's a still image. Today, when a crash like that occurred, the screen glitched first (random lines on the screen, some parts got moved, really weird). I will get some photos if it happens again.
The problem is that I can't identify what's causing it. There is no particular app or action that I do / use that triggers this. It also doesn't seem to be movement-based, as it sometimes happens while it's sitting still on a table.
I updated to 5.0.1 about a day before this started happening, but I'm still not sure if it's software or hardware-based.
I tried a factory reset and booting into safe mode, none of these helped. I will only consider flashing a custom ROM as a final resort, because I'm not sure if it voids the warranty.
PS: the device is still under warranty, but I'm away for the holidays and will be until the beginning of the next year. And I'd like to have a usable device, especially while I'll be on the road.
Click to expand...
Click to collapse
I have none of your issues, try booting the device in safe mode and see if the problems still occure. It must be a or multiple downloaded apps that are causing your issues. Or try a data factory reset and restore/download your apps one by one amd try to identify the culpritt.
gee2012 said:
I have none of your issues, try booting the device in safe mode and see if the problems still occure. It must be a or multiple downloaded apps that are causing your issues. Or try a data factory reset and restore/download your apps one by one amd try to identify the culpritt.
Click to expand...
Click to collapse
I said in the post that I tried both of those things. The crash occurred seconds after booting in safe mode and factory reset did not help either.
Smith_S9 said:
I said in the post that I tried both of those things. The crash occurred seconds after booting in safe mode and factory reset did not help either.
Click to expand...
Click to collapse
Flashing the 5.0.1 factory image in fastboot should fix your issues. Or try flashing system.img first, maybe thats enough.
Same issues with my Nexus 5
gee2012 said:
Flashing the 5.0.1 factory image in fastboot should fix your issues. Or try flashing system.img first, maybe thats enough.
Click to expand...
Click to collapse
I am experiencing SAME exactly issues in my N5 with 5.01 and 5.1 . EXACTLY... you are not alone
Seems a software problem (third party app ?) , started in 5.01 and now is in 5.1 , of course system and boot images where flashed with fastboot, so no solution using
Stock, Rooted, using Nova Launcher - Smartwatch 2 - Google Cardboard - Chromecast and many apps.
But started ..if memory helps .. after installing Cardboard 3D apps.
reimer1 said:
I am experiencing SAME exactly issues in my N5 with 5.01 and 5.1 . EXACTLY... you are not alone
Seems a software problem (third party app ?) , started in 5.01 and now is in 5.1 , of course system and boot images where flashed with fastboot, so no solution using
Stock, Rooted, using Nova Launcher - Smartwatch 2 - Google Cardboard - Chromecast and many apps.
But started ..if memory helps .. after installing Cardboard 3D apps.
Click to expand...
Click to collapse
My phone had an issue with the screen. I went to the LG service and they replaced the screen entirely, so that's that.
again and again...
i'm in the same case... I don't have any clues or solutions, i'm just wainting like a dumb... I don't know what to do, i always have to make the thing with the power button and the lower sound button to make it show the boot screen, but it glitch after few seconds... PLS HALP

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