yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab Plus] truelies1:
It's very possible. cause after turned it on I got two SOD
[Samsung Galaxy Tab Plus] aperture:
i bought my tab last Dec 24 and it was only yesterday i experienced the SOD.

will try to monitor my tab. I just left it in my locker for 9 hours already.
[Samsung Galaxy Tab Plus] theundeadelvis:
I had my 7+ for 3 or 4 weeks (of heavy use) before I got my first SOD. It has gotten progressively worse since.
[Samsung Galaxy Tab Plus] lrs421:
Is SOD something that everyone experiences eventually? Are there any users that have had their tabs since release and not experience one?

I've had mines for about a week and it has been gravy. Wifi sleep policy set to never, no external SD card yet, not rooted, blue moon hand.
[Samsung Galaxy Tab Plus] garyd9:
yep. Actually had it since the day Amazon started shipping (which was over a week before official release.)
[Samsung Galaxy Tab Plus] naturefreak85:
I got a 32 GB on the 29th, still haven't gotten one on it. My first 2 tabs I had logged into and used the Samsung services, I think part if it has to do with their social software crashing. Both my first 2 tabs I had logged into it. Within a week they all SODed. there could also be a correlation with which tab you have as well. My first 2 tabs were 16 GB.
[Samsung Galaxy Tab Plus] naturefreak85:
Are you logged into any Samsung specific software? I mean their social software or Samsung Dive.
[Samsung Galaxy Tab Plus] slyd0997:
Auto Airplane Mode by DON

There's two auto airplane mode apps in the market. I believe the one by DON is the one that works.
[Samsung Galaxy Tab Plus] StingerDog:
That's the one I'm using.
[Samsung Galaxy Tab Plus] lrs421:
What settings are you guys using in the app? Disable everything?
[Samsung Galaxy Tab Plus] jasonemorrow:
I had sod off and on since day one. They progressively got worse until I had more than a dozen a day. Odined back to stock. Upgraded through kies. Have not had one since and battery life is better. All the same apps are installed. Same micoSD. Rooted. Wifi on always. All the same settings as before. I wonder if those having problems did their updates directly to the device like I did the first time....maybe a dirty download?
[Samsung Galaxy Tab Plus] StingerDog:
The only option I have checked is "start on boot". The other two options, "wifi enabled" and "Bluetooth enabled" are unchecked.
[Samsung Galaxy Tab Plus] slyd0997:
I also only check start on boot.
[Samsung Galaxy Tab Plus] orb360:
I would be very surprised if Samsung is applying patches without doing some sort of hash to confirm the download integrity first.

In other news... I had 4 within 2 hours yesterday (every time the screen went off, reboot)... Then good since then so far
[Samsung Galaxy Tab Plus] jonsteckelberg:
sod

One thing i have noticed is if I am playing music I do not get any sod's. Also I seem to get them more is the tablet goes to sleep and wakes frequently. Still just anoying not a deal breaker.
[Samsung Galaxy Tab Plus] garyd9:
If the tablet is playing music, it's not sleeping. If it's being charged, its not sleeping.

This whole issue is starting to annoy me... Mostly because I can't repeat it (though I guess I should be thankful.)

I suspect there might actually be more than one issue going on, but there's no way for me to determine that for certain. I hope no one takes offense, but unless 10 people have identical results or I can repeat them myself, it's a wild goose chase. (Not saying people are clueless or whatever - only that I don't have a clear path to follow.)

Some people report it only happens when wifi is on. Some people report it happens with wifi off. Some people install a program that puts the device into "airplane mode" (which essentially only turns off wifi and BT on the 6210) and that seems to resolve it. Others... who knows.

There has been NO common answer in my questions outside of the sarcastic question about sharing beer. (Apparently you are all selfish drunks not willing to even share with a personal tablet you can carry in a pocket.)

Either there are multiple issues that all prevent the display from turn on (and no one is sure if the device processor is in deep sleep or not) or I'm not asking the right questions. Or both. Or neither.

Perhaps if someone could do this:

If you have that airplane mode thing, uninstall or disable it. Go into the device settings and actually turn wifi OFF and BT off. Completely off and disconnected. Do you get issue with the tablet in this state? In theory, you shouldn't (if the airplane mode thing helps you.)

Another problem I'm having is that I can't get the full android source for honeycomb, so I can't drill down into the settings and such to see how honeycomb is dealing with the "wifi sleep policy" setting. I know, for example, that if the wifi is set to "never turn off when plugged in", it doesn't turn off immediately after turning off the display when not plugged in. What I don't know is under what circumstances is will turn it off. Is there a timer? Is it some combination of a timer and inactivity?

My only hope is that I accidently stumble upon the issue with my various kernel work, or that the issue just "goes away" with ICS...

We'll see...

Take care

Gary
[Samsung Galaxy Tab Plus] StingerDog:
Gary-

I tried this on my tablet at home and in range of my wifi router. Disabled auto airplane mode, set the tablet's wifi sleep policy to "when screen turns off" and turned off the screen. When I turned the screen back on I discovered that the tablet's wifi never turned off. It stayed on and connected to the internet.

In the past (before I installed auto airplane mode), when I left the tablet's screen turned off, but wifi was still turned on, as long as I was within range of a wifi connection so the tablet could get online, I was getting SODs. At the same time, if wifi was on but not actually connected to the internet because not in range of a router, no SODs.

Simply put:

screen off + wifi on + connected to router/internet = SOD.

screen off + wifi on + no router/internet connection = NO SOD.

screen off + wifi off = NO SOD.

That is why I'm running auto airplane mode. My tablet refuses to turn off the wifi when I turn off the screen, even if I set it in wifi sleep policy. It's like it makes no difference what I select.

And so I get SODs. To avoid SODs, my other choice would be to remember to manually shut off wifi before I turn off the screen, then remember to turn it on again when I wake the screen up.

Which would be a hassle.

So I let auto airplane mode do it for me.

Obviously, at least in my tablet's case, the combination of wifi never turning off in sleep mode and it still getting information from the internet, whether in the form of notifications or background data, is causing the tablet to lock in sleep mode and drain the battery at the same time.

My wife's P6210 has never had a SOD.

A friend at work has suggested that the wifi chips could be from different lots and some tablets got a bad lot of wifi chips that are causing this wifi sleep lock. Only way to tell would be to crack the case on each tablet and look for different lot numbers on the chips.

Not something I'm willing to do.
[Samsung Galaxy Tab Plus] garyd9:
Can you try it for a day or so, just to confirm? (remove airplane, manually turn off wifi, ensure no SOD.) There are a lot of moving parts with the wifi stuff, and samsung is using a proprietary wifi drivers from atheros that they won't give me access to. They are also linking wpa_supplicant with proprietary files, but in that case they may have to give me access (as wpa_supplicant is GPL'd.)

Another question is: if the wifi is left on/connected, does the tablet SOD when it's plugged in to AC power, or only when it's running on battery?

thanks

gary
[Samsung Galaxy Tab Plus] Entropy512:
If on battery - does it SoD faster/more frequently if you run the following command from a PC on the same network:

ping -i 10 <ip address of tablet>

Might be slightly different in Windows, that's the command in Linux.

This will force the CPU to sleep/wake on and off once every 10 seconds. Turning wifi off may just be reducing how often the device wakes.
[Samsung Galaxy Tab Plus] StingerDog:
@garyd9:

Quick answer to your last question: yes the tablet has SOD both on AC and battery.

I did try, as a paranoia check, to see if it would SOD again with airplane mode disabled. I wasn't able to recreate the problem, but I admit the test only lasted for no more than fifteen minutes or so. So happy was I that the problem had a work around that I enabled auto airplane and went about my merry way.

I will disable airplane mode and run the tablet until it SODs and report back here.

---------- Post added at 06:56 PM ---------- Previous post was at 06:30 PM ----------

I think I see where you're going with that. I had my wife send me an email while my tablet was sleeping (wifi on and connected) just to see if the notification would cause a SOD. Unfortunately it did not.
[Samsung Galaxy Tab Plus] StingerDog:
Tablet SOD occurred.

Conditions:

wifi on and connected

wifi sleep policy set to "never"

on battery power

auto airplane app disabled

tablet screen off and sleeping

This after two weeks of being SOD free with auto airplane mode forcing wifi into sleep mode when the screen is off.

Interesting.
[Samsung Galaxy Tab Plus] jonsteckelberg:
aouto airplane mode

auto airplane mode did not help my sod.
[Samsung Galaxy Tab Plus] garyd9:
(I'm in a strange mood...)

Is anyone in England having this issue? What do you say when it happens? "Sodding sod!"

If I find a fix for this, can I publish it on the android market with an app name of "Sod Off"?

Actually, looking up the English use of the word, it's apparently short for "sodomite." If so, would fixing this issue be considered homophobic?

(another post contributing absolutely nothing worthwhile - except perhaps a bit of amusement with a very annoying issue.)
[Samsung Galaxy Tab Plus] StingerDog:
Gary--

I had to hit the thanks button on that one!
[Samsung Galaxy Tab Plus] jasonemorrow:
After odin back to stock had one sod after a couple days but nothing more. Rooted with Gary's newest kernel, but no custom boot animation, ondemand with no settings change. Twice over the past two days I have heard it randomly reboot...could hear the power on sound. This would be followed by a sod a little while later. Same thing happened this morning, but later it stuck on the Galaxy Tab splash screen. Reboot recovery just fine but couldn't do a restore or anything. Recovery file was not found and could not wipe cache or do factory reset. Odin back to stock twice. Same issue in 3e recovery. Wasn't around my computer to see if adb would read it...as it is I await shipment of my new one from Best Buy.
[Samsung Galaxy Tab Plus] Boogydefarno:
I'm in England and having this issue of SOD's. However I am using a U.S. Tab! Wifi only and running the latest software updated via KIES. Mine will quite regularly not wake up when I go to use it and sometimes in the morning the battery will be completely drained. As is the case right now hence why I am using my iPad :)

I have been following this with interest but haven't had time to try all the different options stated in the post.

I am hoping that ICS will solve the issue.

I wondered when someone would realise what sod was short for in the U.K.!
[Samsung Galaxy Tab Plus] garyd9:
I've managed to actually communicate with someone @ samsung in regards to this... perhaps there's hope afterall?

Gary
[Samsung Galaxy Tab Plus] slyd0997:
SOD

Gary, what did Samsung say???
[Samsung Galaxy Tab Plus] garyd9:
see this post: http://xdaforums.com/showpost.php?p=21512609&postcount=9
[Samsung Galaxy Tab Plus] rswoods:
My P6210 is crashing with the SOD more and more often. Three times today. I'm tempted to flash it back to stock and see how it behaves. It's very frustrating and ridiculous for a $400 device to be this unreliable. Unfortunately, I'm past the 30 day return window.

Currently running KL1 with CWM and Gary's 20120107 kernel. I tried the "auto airplane mode" app, which some claim cured it, to no avail.

...grumble
[Samsung Galaxy Tab Plus] orb360:
Turn off auto airplane mode and try leaving it in airplane mode manually. It shouldn't be SOD'ing if it's in airplane mode.
[Samsung Galaxy Tab Plus] altloff:
It's the SD Card for me...

...or something related to that. I tried everything offered up in this thread. Some helped a little but nothing solved either the SOD or the random reboots. So I tried the following steps:

1) Factory reset and no SD Card. No restore of my apps from Google. Straight out of the box setup if you will. - In 24 hours not one single SOD or reboot.

2) Added the SD Card back in only. - After 10 minutes SOD. Several more over the next day and several reboots too.

3) Removed the SD Card. - No SODs. No reboots.

4) Adding my old apps back in (slowly) - Stable as can be...so far.

It seems to be something to do with the SD Card. Maybe it's the card (AmazonBasics 16 GB microSDHC Class 10 Flash Memory Card in my case) or a process using the card. Also, when plugged in, no problems regardless of the configuration in place which seems strange to me.
[Samsung Galaxy Tab Plus] arwilson529:
V6 Supercharger

The V6 supercharger script was my SoD problem. Once I turned it off, the problem went away.
[Samsung Galaxy Tab Plus] StingerDog:
Just curious. Can you write (copy/move) files to the SD card using a file manager other than the stock file manager? Can apps write files to the SD card or do you get a error message that card is not writable?
[Samsung Galaxy Tab Plus] lrs421:
3 weeks now and still haven't had an SOD. 32gb transcend memory card installed.
[Samsung Galaxy Tab Plus] altloff:
No I can't. Get permission error or general error. I even reformatted the card and tried again. Same problem.
[Samsung Galaxy Tab Plus] rswoods:
Thanks for the suggestion.

It didn't work. I completely removed the app, rebooted, manually put it in airplane mode, tapped the power button, put it down for awhile, it required a long-press reboot to wake up.

I'm trying it sans sdcard. If that doesn't work, I'll wipe it & start over.
[Samsung Galaxy Tab Plus] StingerDog:
See this thread:

http://xdaforums.com/showthread.php?t=1414214
[Samsung Galaxy Tab Plus] rswoods:
Unless I'm missing something, that thread has nothing to do with the SOD issue or writing to the SD card.
[Samsung Galaxy Tab Plus] rswoods:
Just to update, since removing the sdcard 15 hours ago, I have not had a single SOD.

...I'm hopeful...

This is the sdcard I bought for it:

http://www.amazon.com/gp/product/B001L1H0SC/ref=oh_o06_s00_i00_details

If the tab remains stable without the card installed, I'll try reformatting the card, see what happens.
[Samsung Galaxy Tab Plus] jeffcavicchi:
I'm having the same problem as everyone else.

Specs:

P6210

Rooted

setCPU

Gary's Kernel

8GB Sandisk card

V6 Supercharger

I have been getting the SOD a couple of times a day for a while now - seems to have started right around the time I rooted, which is also when I put an SD card in. I will say that I got an SOD right away after inserting a card.

I have dialed setCPU back from 1400 max to 1200 max, and since I did that I have not gotten an SOD - been a day and a half now. My theory is that 1400 works fine for short periods, but if you ramp up to 1400 for a while (say when Google Currents is syncing) it may overwork the CPU. I am also undervolted using Gary's numbers.

I'm not convinced things are fixed, but so far, so good. What I find interesting is that the SOD never occurs when the unit is plugged in - makes me think it has something to do with waking from Deep Sleep, since the machine never goes into deep sleep when plugged in, but obviously does when it is not plugged in.

I also had a similar issue with my phone when I was trying to use a class 10 SD card - the phone would lose connection with the card and I would get the SOD. Once I switched to a class 4 the problem went away - not directly related to this problem, but similar enough to be worth mentioning.

Assuming that running at 1200 max works, I'll post back and let everyone know. If it does not, I will next try removing setCPU. If that does not work, I will unSupercharge. After that, remove the SD card.

I'll keep everyone updated.
[Samsung Galaxy Tab Plus] garyd9:
Okay, so there are some SOD issues related to wifi... and other SOD issues with the sdcard?

(FYI, I'm using a 16GB class 10 card with no issues.)

For those who have the SOD issue that seems to be related to the SDCard (and are also using my kernel): If the issue occurs, after you reboot the device, please make a copy of the /proc/last_kmsg file from your tablet and get it to me.

(If you are using my kernel and the file doesn't exist after rebooting from SOD, please let me know that as well.)

That file, if it doesn't get trashed from the SOD/reboot, will show kernel messages that occured previous to the last reboot (which may show some sdcard related messages that can help diagnose the problem.)

Thanks

Gary
[Samsung Galaxy Tab Plus] jeffcavicchi:
Will do.

I also have noticed that the Tab loses connection to my wireless on a fairly regular basis. When I wake it from sleep there is a good chance that it will no longer be connected - even though I have it set to never disconnect, have no power saving settings enabled, and am not using airplane mode, etc.

My phone never loses connection to the wireless FWIW.
[Samsung Galaxy Tab Plus] garyd9:
Wifi I probably can't do much about until and unless Samsung gives me the driver source...

I'm really starting to think that Samsung's QC is lacking in regards to these tablets. While I understand that people come to these forums to complain, I've yet to see anyone post that their tablet is working 100%. I guess I'm lucky that I don't see SOD issues, but my tablet does have the issue of getting very hot (almost uncomfortable) when I'm web browsing (no OC, slight UV.)

I've actually considered sending mine in to samsung for "repair", but I'm not sure I want to risk a repaired (or replacement) unit having other, more serious, issues.
[Samsung Galaxy Tab Plus] StingerDog:
Fixed it.

This is the thread re: writing to external SD card:

http://xdaforums.com/showthread.php?t=1414214
[Samsung Galaxy Tab Plus] jeffcavicchi:
I agree - the only reasons I'm not more upset about this are:

a) It's not my phone. The tablet is really just a convenience for me - if it shuts itself off the biggest impact it has on me is slight annoyance. If my phone kept shutting itself off I would be pissed.

b) I rooted it, overclocked it, replaced the boot animation, run scripts at boot - so how much can I complain if it isn't working like the manufacturer intended?
[Samsung Galaxy Tab Plus] miksumortti:
I have 100% working, neither of those issues have happened (or any else).

P6210 32Gb, UEKL1 firmware, rooted, 8Gb class 10 sd

Sent from my GT-P6210
[Samsung Galaxy Tab Plus] jeffcavicchi:
I hope you knocked on wood when you wrote that!
[Samsung Galaxy Tab Plus] mohawkx:
I'll knock on wood also. I have had the GTab7plus for almost a month now and haven't had the screen of death or any problem with the 32gig SD card I installed. 6210 wifi only, not rooted, stock all the way. Operation is 100%. Knock on Wood! Knock on Wood! Knock on Wood!, Knock on Wood!, Knock on Wood!
[Samsung Galaxy Tab Plus] rswoods:
...approaching 30 hours and not a single SOD. I played with it pretty hard today, sleeping and waking it a couple dozen times at least, messing with setCPU and reinstalled the "auto airplane mode" app. Everything is working as it should. I'm almost over cringing when I hit the power button to wake it up. Now, it just wakes up.

Tomorrow I'll reinsert and reformat the sdcard.

...I'll keep y'all posted.
[Samsung Galaxy Tab Plus] orb360:
I haven't had one in 4 days since i installed auto airplane mode.
[Samsung Galaxy Tab Plus] garyd9:
Any update?

Also, can you tell me the brand, size and class of the memory card you are using? (perhaps a link to an amazon.com product page showing the same card.)

There are some microSD cards that aren't exactly to-spec... the linux kernel tries to compensate for them, but it might miss some. In most cases, they are either known in the kernel, or they are very inexpensive cards. (For example, sandisk is known for producing some complete garbage memory cards in some of their lines.) Anyway, if this is the case for your card, I might compile a kernel that relaxes the timings on the sd card dramatically to see if that helps....

I want to fix this, but I don't have the issue myself, and I don't have the resources to buy dozens of microSD cards and different tablets until I can reproduce.

Gary

---------- Post added 22nd January 2012 at 12:06 AM ---------- Previous post was 21st January 2012 at 11:47 PM ----------

A little tidbit that's probably completely unrelated... but may not be...

The wifi chip in these tablets communicates over a SDIO bus. In other words, it's sharing the same bus as the microSD card...

For some people, turning off wifi (via that airplane mode thing) is preventing the SOD. For some others, removing the microSD card is preventing the SOD. Up until about an hour ago, I assumed that these were two completely unrelated problems. Perhaps they aren't.

Gary
[Samsung Galaxy Tab Plus] jeffcavicchi:
Hey Gary-

I've been holding off posting because want to get some real time in on the machine before I draw any conclusions...

That said, since I limited the cpu to 1200 via setCPU, I haven't had a single SOD. Been about 48 hours now, and I used the tablet pretty consistently yesterday throughout the day. I'm not convinced that this has really solved the problem, but I have to assume that it has until I get another SOD.

As far as the cards-I have a lousy 8GB class 2 SanDisk in right now (came with my old Eris). I also have a nice 16GB PNY class 10 that caused all kinds of problems with my Droid2.

For the sake of troubleshooting, if I can get another 3 or 4 days without a SOD, I'll try the PNY card and see if that changes things. I am running several scripts on a schedule that are located on my SD card, so the tablet does access the card on a regular basis.

Thanks for your work on this-it is developers like you who make Android such a nice alternative to iOS!
[Samsung Galaxy Tab Plus] jeffcavicchi:
BTW, if I can provide you with any logs or anything that might help, just let me know!
[Samsung Galaxy Tab Plus] garyd9:
Yes... I keep asking for the same thing:

So far, only two people having the SOD issue related to the memory card have given me the information on their SD card. In both cases, it's a class 2 memory card from sandisk. One is 8GB, the other is 16GB. Probably the same card (with different amounts of memory) internally.

Gary
[Samsung Galaxy Tab Plus] jeffcavicchi:
OK - next time I get an SOD (assuming there is a next time), I'll be sure to get you that info.

Another day without any problems, though! Knock on wood.
[Samsung Galaxy Tab Plus] ringnutz:
I have a 4 gig sd card from SanDisk, haven't had any sod problems yet... On the 6210 16 gb
[Samsung Galaxy Tab Plus] rswoods:
If mine SODs again, I will get the logs to you. Since I removed it, I have not had a single one. Prior to removing it, I was getting several a day.

I put the card back in tonight, and formatted it. So far so good, but it's only been a couple hours, with a couple "awakenings".