Problem with deep sleep (?) - Galaxy Tab 7.7 Q&A, Help & Troubleshooting

Hi guys,
So I'm not sure if the term "deep sleep" is correct here, but I'll use it anyway since it highly describes the case.
I bought the Tab 7.7 P6800 a few months back, it was on HoneyComb. 2 days later I upgraded to stock Samsung ICS. So I have no knowledge if the issue I'll describe was on HoneyComb as well or not. All I know is that I've been seeing this since stock ICS.
I moved from stock ICS to Nexus 7.7 then to Paranoid Android 2.22... all showing the same problem. So here goes.
From time to time when I go to use the Tab, I press the power button to wake it up... nothing would happen. Screen stays off and doesn't turn on. After a few quick tries I would hold down the power button to force a reboot.
The device is charged when this happens, and there is no specific duration after which this happens. Sometimes I would go to sleep and encounter this the next morning, and sometimes I'd leave it for lunch and then encounter this problem.
Last night for example when I came to use it, I had to force a reboot. I checked the battery stats under Settings, and this is what I found (screenshot taken today): please check attached screenshot. The red area is from last night.
Are there any logs that I could look into once this happens or any help from anyone around? Has anyone else encountered this? I've seen online posts about the same case but for another tab, the Transformer I believe.
Please do let me know your thoughts or from where to start debugging the problem.
Thanks all
//M

Hi, sorry to hear about your issues. Download logcat and look for Errors, if you have a terminal app installed, try and type: top - it will show you what processes is currently chewing cpu cycles..it might require busybox wich mean root is needed..
I had this issue but on the older Tab7 where the phone part would eat battery even in flightmode, no simcard and IMEI was missing, so flashing a different modem.bin file solved it, but you might have a different problem..

Thanks for ur quick answer.
I'll check the logs and see...
Sent from my GT-N7000 using xda app-developers app

Well, I'm not sure if I've solved the issue or not, but turning auto brightness off seems to keep the Tab in a usable state for the past day or so. Didn't encounter any problems waking it up...
Sent from my GT-P6800 using xda app-developers app

Looking at the attached image, it looks very much the same as mine, screen first 65-75% then android 9% so on.. no irregularities.
Also a try CPUspy so you can see where it hovers, also a betterbatterystat might help, think there is a free version here on xda..

I think https://play.google.com/store/apps/details?id=eu.thedarken.wl / Wake Lock is the answer to anyone facing SODs...
Sent from my GT-P6800 using xda app-developers app

I had similar experience.
I have similar experience with my tab.
It was good when i use P6800XXLQ1_CSC_ATO but it has occur with stock P6800DXLP8_CSC_XSE and SKYHigh rom 4.0. then i have back to P6800XXLQ2_CSC_ATO.
I have to try with others tools with my tab.
thank you...

The best solution so far and this hasn't failed me once for the past month or so, is stock 4.0.4 + EzyICS kernel and setCPU from the Play store! No SODs whatsoever again!!
Sent from my GT-P6800 using xda app-developers app

Related

Random shutdown, Screen of Death?

Has anyone else came across the screen of death (random shutdown when idle and requires long pressing power to turn back on) with their Galaxy Tab 7+? I have this problem everyday and it seems like other Samsung phones had similiar problems like this one.
Does anyone know if there is a way to fix this? Supposively it may be a problem with the Wifi or reading the SD card when idle.
Sent from my GT-P6210 using xda premium
I Did a factory rest and haven't had one in two Weeks.
I did a factory reset last night and still have the same problem. Did you do a factory reset under "Settings > Privacy > Factory Reset"?
Didn't change a thing for me.
Sent from my GT-P6210 using xda premium
I occasionally get reboots, I can hear the sound when its in my pocket. Likely due to set cpu. My min is 500. I hear its related to on demand setting. I may uninstall if it persists.
the SOD issues is a known issue on some units.
While some units have it very frequently others don't.
The one i got from Fry's (and returned) had it.
The 3G version one i got from ipmart.com doesn't have it.
It seems like it may have something to do with the SD card reading. I removed mine and haven't had a problem since.
Sent from my GT-P6210 using xda premium
I take that back, just got SoD again. I'm really considering exchanging this for another one
Sent from my GT-P6210 using xda premium
charmartist said:
I did a factory reset last night and still have the same problem. Did you do a factory reset under "Settings > Privacy > Factory Reset"?
Didn't change a thing for me.
Sent from my GT-P6210 using xda premium
Click to expand...
Click to collapse
No I did mine from recovery. Power and the volume button closest to power. Select factory reset. I believe they are slightly different, but I am not positive of that. If that doesn't help, I'd return it if possible and get a different one. Here in the states most return periods have been extended Into January. Good luck.
Another thing you can try is using Odin to flash the retail ROM for the 6210 that is posted in the development section. I have had to do that several times trying to get cwm sorted, that may have fixed it. That's a good way of reloading the code, because I did get the sod several time prior to my first brick. After reloading the code, I forgot the problem even existed. Again good luck
charmartist said:
Has anyone else came across the screen of death (random shutdown when idle and requires long pressing power to turn back on) with their Galaxy Tab 7+? I have this problem everyday and it seems like other Samsung phones had similiar problems like this one.
Does anyone know if there is a way to fix this? Supposively it may be a problem with the Wifi or reading the SD card when idle.
Sent from my GT-P6210 using xda premium
Click to expand...
Click to collapse
I have had two Tab 7+ from Amazon. Both had the SOD problem. I returned both and now I will either wait until there is a fix from Samsung or will look for another tab.
I got them 2-3 times per day on my first unit...I exchanged it once Best Buy got another in stock and haven't had any issues at all. So yeah...if you're getting the SODs, exchange it if you can.
I had this too! I immediately asked for it to be returned. I didn't spend so much money on a device that randomly shuts down. Sending it back today..
I have only had one random reboot (that I know of). I have, however, had some apps like Marketplace crash on me at least a couple dozen times. I always have to manually reboot to fix it.
Quick update guys, I exchanged it today at Best Buy and just got done updating the firmware through Samsung Kies. We'll see how this one goes; I'll keep everyone posted.
Just wanted to let everyone know that I havent had a SoD since I exchanged it and the battery lasts longer also. So far so good, I'm glad I didnt keep the other one.
Sent from my GT-P6210 using xda premium
Well, i guess i spoke too soon. I updated the firmware tonight. Since then Ive had 2 random reboots.
GaresTaylan said:
Well, i guess i spoke too soon. I updated the firmware tonight. Since then Ive had 2 random reboots.
Click to expand...
Click to collapse
If you can, go for an exchange. Don't keep a defective item unless you have to. Samsung has warranty on it though I believe.
Sent from my GT-P6210 using xda premium
Im chalking my random reboots up to setcpu. Had 2 in 10 minutes. Removed set cpu none since. PROBABLY need a custom kernel.
chrisrotolo said:
Im chalking my random reboots up to setcpu. Had 2 in 10 minutes. Removed set cpu none since. PROBABLY need a custom kernel.
Click to expand...
Click to collapse
What were your SetCPU settings?
Any screen-off profile with a maximum limit less than 800 MHz WILL cause SoDs until the kernel can get patched.
removed all profiles. just 500 min 1.1 max
Finally gave up and returned mine. I had just updated to the latest firmware, did a factory reset and 4 hours later got 2 back to back SOD's. This was the last day I could return it to Best Buy and luckily they had 1 left. Charging the new one right now.

Suggestion: Black Screen of DEATH & Charging Problems

So I was looking through the developers site located HERE: http://developer.nvidia.com/tegra-250-tango-development-kits & found this;
"In certain power saving configurations, touching the screen or "Android buttons" at the top of the device is not adequate to wake the device. To work around this, try inserting or ejecting the SD Card to wake the device. Failing that, you will need to reset or power cycle the Tango. Alternatively, please set the screen timeout to 30 minutes (Menu->Settings->Display->Screen Timeout)."
Seems like the BSOD issues are in the 'Tango' version of the Tegra 2 processor & this (which was located in the Known Issues section) is Nvidia's solution. So I plan on testing this workaround (re-inserting micro SD) to see if this can replace a battery pull. As most of us know the other way of preventing BSOD is by setting the sleep mode to never & this seems to work for some & is recommended by Nvidia. So if you can give this a try, Plz let us know the results.
Sent from my LG-P999 using Tapatalk
Does never sleep, effect batt life or conflict with set cpu?
Thanks for your informative post.
Sent from my LG-P999 using xda premium
missaellpzchvz said:
So I was looking through the developers site located HERE: http://developer.nvidia.com/tegra-250-tango-development-kits & found this;
"In certain power saving configurations, touching the screen or "Android buttons" at the top of the device is not adequate to wake the device. To work around this, try inserting or ejecting the SD Card to wake the device. Failing that, you will need to reset or power cycle the Tango. Alternatively, please set the screen timeout to 30 minutes (Menu->Settings->Display->Screen Timeout)."
Seems like the BSOD issues are in the 'Tango' version of the Tegra 2 processor & this (which was located in the Known Issues section) is Nvidia's solution. So I plan on testing this workaround (re-inserting micro SD) to see if this can replace a battery pull. As most of us know the other way of preventing BSOD is by setting the sleep mode to never & this seems to work for some & is recommended by Nvidia. So if you can give this a try, Plz let us know the results.
Sent from my LG-P999 using Tapatalk
Click to expand...
Click to collapse
I just reboot my phone before I go to sleep. It's a lot easier and is more of a preventative option.
Sent from my LG-P999 using xda premium
shovelhead83 said:
Does never sleep, effect batt life or conflict with set cpu?
Thanks for your informative post.
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
No problem. Yes it could, depending on your settings for both SetCPU & how your charging your phone. The thing with setting your phone to not sleep while charging is that it's only a workaround so that if you charge your phone overnight your phone will have less probability of turning off during the night so that you won't suffering from the alarm never going off & or you having to battery pull. Charging overnight is never recommended for Lithium Ion Batteries but for some people its the only time they have to charge their phone and so this trick is useful to them. So unless you potentially need this then by all means use it but take notice of your SetCPU settings & how your charging your phone so that you don't have even more issues.
Sent from my LG-P999 using Tapatalk
set charging profile in SetCPU to 400-500Mhz
I was getting the SOD while charging quite frequently only after I rooted, not once did I get it before root. I did the never sleep trick about a week ago, no problems since, still have my fingers crossed, as this is my alarm clock.
I just start the clock and put it in "Night mode" before I goto bed and never have any issues.
I set to never sleep and have not had a BSOD since, thank you. Now if I could just stop the random reboots. This phone is frustrating.
Sent from my LG-P999 using xda premium
shovelhead83 said:
I set to never sleep and have not had a BSOD since, thank you. Now if I could just stop the random reboots. This phone is frustrating.
Sent from my LG-P999 using xda premium
Click to expand...
Click to collapse
I can't really solve your random reboots but I can give you a suggestion. I recommend a complete reset of what ever rom your using (data, cache, clean system, ex: no themes, apps & or just a fresh install) then install one by one each app, unless you absolutely need an app, maybe an app install per day or every few hours, this is to pick out the app that might be the cause for random reboots. A fresh install might even solve your issues. Also, refrain from using titanium backup batch restore or even app data restore unless it's absolutely necessary (ex:game data, logins or settings you absolutely need). Lastly here are some apps that I have found that have created this reboot issue on my phone and that you may what to test first: seekdroid (or any app that request administrator permissions), large games (mostly games that rely on sdcard files to run), and system modification apps (apps that ask for superuser permissions & modify system data).
Sent from my LG-P999 using Tapatalk
thanks
missaellpzchvz said:
"In certain power saving configurations, touching the screen or "Android buttons" at the top of the device is not adequate to wake the device. To work around this, try inserting or ejecting the SD Card to wake the device. Failing that, you will need to reset or power cycle the Tango. Alternatively, please set the screen timeout to 30 minutes (Menu->Settings->Display->Screen Timeout)."
Seems like the BSOD issues are in the 'Tango' version of the Tegra 2 processor & this (which was located in the Known Issues section) is Nvidia's solution. So I plan on testing this workaround (re-inserting micro SD) to see if this can replace a battery pull. As most of us know the other way of preventing BSOD is by setting the sleep mode to never & this seems to work for some & is recommended by Nvidia. So if you can give this a try, Plz let us know the results.
Sent from my LG-P999 using Tapatalk
Click to expand...
Click to collapse
Thank you very much for the information. Ill start testing 30minutes timeout now, this way locking the screen using the power button to save battery.

[Q] AT&T Samsung Infuse 4g randomly shutting off (SOLVED)

My samsung infuse randomly shuts off when I plug my phone in to the charger. But it's not consistent. It only happens every once in awhile. It shuts off and then the charging screen won't even show the battery. It will show something like a circle indicating that it's loading and that screen will just keep blinking on and off, as soon as I unplug it the phone powers on. I am using a third-party battery but I also still have the original. I don't know if it does it with the original battery as well. But I will start paying to keep track now.
Try the stock battery.
But also try another charging / USB cable. Maybe a short in the cable you have. Let us know your results
Sent from my SGH-I997 using xda app-developers app
Your not alone in this, i'm having same issue with an infuse i'm trying to sell. i found out that if i press the powerbutton like repeatedly around 5 to 10 times while the circle indicator is showing, the phone will display the green battery charging. I'm on stock firmware too and i believe this may be due to the power button or faulty powerbutton.
since switching back to the original battery that came with the phone I have not experienced any "random power off's" Thanks for the tip.
Samsung Randomly shutting off
oreo918 said:
since switching back to the original battery that came with the phone I have not experienced any "random power off's" Thanks for the tip.
Click to expand...
Click to collapse
I am having a similar issue. After bricking my phone, I returned it to stock, used Heimdahl to get the Gingerbread deodexed and rooted version UCLB3 and added the Adrenaline Injector Tweak and the phone is working Terrific. Faster than I would have imagined. I do not have a rom flashed as I am happy with the debloated stock version. However, for whatever reason it shuts down randomly while I am not using it and I then have to plug it into a charger and wait for the on screen battery appears and disappears to turn the phone back on. This occurred when I returned it to stock and continues now. Has anyone else experienced this? Any suggestions or solutions? Any help is greatly appreciated.
Needtaknow said:
I am having a similar issue. After bricking my phone, I returned it to stock, used Heimdahl to get the Gingerbread deodexed and rooted version UCLB3 and added the Adrenaline Injector Tweak and the phone is working Terrific. Faster than I would have imagined. I do not have a rom flashed as I am happy with the debloated stock version. However, for whatever reason it shuts down randomly while I am not using it and I then have to plug it into a charger and wait for the on screen battery appears and disappears to turn the phone back on. This occurred when I returned it to stock and continues now. Has anyone else experienced this? Any suggestions or solutions? Any help is greatly appreciated.
Click to expand...
Click to collapse
Like I posted above I was using an after-market battery. Since changing back to the original battery that came with the phone I have not experienced anymore random shutdowns. Are you using an after-market battery by any chance??
Re: [Q] AT&T Samsung Infuse 4g randomly shutting off
No sir. I am using the battery that came with the phone.
Sent from my SAMSUNG-SGH-I997 using xda app-developers app
Re: [Q] AT&T Samsung Infuse 4g randomly shutting off
The only thing I can think of, is it has something to do with the adrenaline tweak you say you added to it. My reasoning us because I am also using deodexed stock/rooted ROM just without the tweak and do not encounter this problem. you used option c from the XDa website am I right? If do it's the same one I'm on now. I'd start from scratch and re download everything fresh and reroot the phone try it for a couple days without the tweak and see if that solves the issue then add the tweak and if it starts up again you know whats causing it. That's just what I'd do. I hope this helps
Sent from my SAMSUNG-SGH-I997 using Tapatalk
I think Oreo is right. Adrenaline tweak will do that.
Use a root tool like root explorer or adb and delete the /etc/init.d folder or the content.
If you have cwm recovery, flash zen tool kit, remove tweak and apply light tweak.
Re: [Q] AT&T Samsung Infuse 4g randomly shutting off
Thanks for the feed back. Had to try it out for the whole day. I swapped batteries with my son who also had an Infuse and I am happy to say that I have not had the issue in 24hours and nor has he. Thanks for chiming in because these will be steps that I will try if it occurs again.
Sent from my SAMSUNG-SGH-I997 using xda app-developers app

Touch input stops responding

Looks like I have been having nothing but problems lately.
First I was having the problem with the screen going all black (not off) where I had to press power button twice to get back to work.
Now I am getting this random locking of touch input until I press the power button twice.
Here is a video I just recorded of the monitor locking up and not reacting to touch input correctly.
Should I return this to Samsung? I don't have many days left on this refurbished warranty? Or could this just be a an OS glitch?
I did load a custom rom on here: Android Revolution HD 5.1
Should I just flash back to stock and root it and see if the problems occur?
Is anyone getting these?
https://www.youtube.com/watch?v=On9dC003_6E
dima202 said:
Looks like I have been having nothing but problems lately.
First I was having the problem with the screen going all black (not off) where I had to press power button twice to get back to work.
Now I am getting this random locking of touch input until I press the power button twice.
Here is a video I just recorded of the monitor locking up and not reacting to touch input correctly.
Should I return this to Samsung? I don't have many days left on this refurbished warranty? Or could this just be a an OS glitch?
I did load a custom rom on here: Android Revolution HD 5.1
Should I just flash back to stock and root it and see if the problems occur?
Is anyone getting these?
https://www.youtube.com/watch?v=On9dC003_6E
Click to expand...
Click to collapse
No idea what's causing that but if you were going to take it back under warranty you would have to be using stock rom not custom anyway. So I would start with that and see if it's the rom causing the issue and if it's not and you've flashed back to stock rom then you may as well take it back under warranty.
Man I recently had this problem when I was tinkering with my note, but a reset fixed my problem. I have heard that this type of thing can happen if you flash the wrong recovery. Not saying thats the case, but more my two cents
Sent from my GT-N8010 using xda app-developers app
Happens to me alot as well and mine aren't even rooted. It's usually when using LectureNotes, but maybe that's because it's the only app I really use the SPen with for longer periods of time. However, for me as for you the solution is just to quickly press the power button once and since it doesn't really appear that often that's fine by me.
Sent from my GT-N8010 using xda app-developers app
@Axel_: Probably you know that already, but I received several reports by LectureNotes' users that the problem you describe does no longer occur after disabling Samsung's `AirView´.
acadoid said:
@Axel_: Probably you know that already, but I received several reports by LectureNotes' users that the problem you describe does no longer occur after disabling Samsung's `AirView´.
Click to expand...
Click to collapse
I had no idea, thanks alot!
Sent from my GT-N8010 using xda app-developers app

My battery fix/bodge

I have an o3d that has a battery percentage problem it displays what it wants when it wants. Such as 70% one minute an 5 mins later its gone to 0% and shut down making it useless unless on charge. It is not a bad battery as i have 7 various batterys that work fine in my other o3d. I have tried the battery calibration apps which delete battery stats .bin and big surprise it did nothing. So i used link to sd to freeze power off
.apk and now my phone stays turned on even when at 0%! This does cause a couple of problems though such as going through usual shutdown precedure only reboots phone (i dont mind though this is handy to reboot). If you reboot whilst percentage is low it wont restart without inserting charger. Phone can still be turned off by holding power button for approx 10 seconds. The worst problem is when 0% is reached the status bar usually force closes (which is a real pain using android without status bar). And camera and a few apps wont work as battery is always low but at least i can use phone. I have learnt so much from xda so i thaught i would share this in case it can help someone. Please share if this was helpfull and if you have any tips on how to fix errors caused by this.
Sent from my LG-P920 using xda app-developers app
And also if anyone knows what may be causing my problem in the first place any help would be greatly appreciated. I have already tried a re flash of standard rom and a couple of different custom gb roms. And a custom kernal. I am currently trying to work out how to flash ics to try and fix this properly. I do not know how this problem first occured as i brought this phone off ebay second hand. The problem first occured when this phone was unlocked so i was told. I did notice that even though it was sold as o3d and the sticker on the back confirmed this, that it said p925 in about phone not p920. Not sure if this is related. So again if you have an un-usable phone i hope the above can help you out. And thanks again to anybody that could help fix this once and for all.
Sent from my LG-P920 using xda app-developers app
+1
Sent from my LG-P920 using xda app-developers app
+1

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