Database Users

G1 Doesnt Always Wake Up

Does anyone elses G1 not wake up when Menu is pressed? Sometimes I have to press it like 6 times before the phone wakes up, does anyone know why?

Mine does this as well. I just thought it was learning from it's owner (I take more than 5-6 pokes to wake me up too).
My only guess is that something is running in the background in order to slow it down and the number of presses has little to do with it.

momentarylapseofreason said:
Mine does this as well. I just thought it was learning from it's owner (I take more than 5-6 pokes to wake me up too).
My only guess is that something is running in the background in order to slow it down and the number of presses has little to do with it.
Click to expand...
Click to collapse
Yea, i was thinkin the same, i should try runnin a ton of apps and find out if [email protected] the problem

mine does the same things sometimes. gets annoying at times. usually i just open and close the keyboard

Mine recently started this, it must be something we downloaded, plus I have the following problems too, they all started at the same time:
1) When someone calls, the screen stay blank for a while so the phone rings but the screen is off so I dont see whos calling
2) The background keeps changing back to the original blue picture thing
3) The WiFi keeps turning off and drians the battery, nothing I do stops it from turning on. I have all sorts of software running, I even ask Locale to turn it off if its between 12.01am to 11pm and still WiFi keeps poping up.
4) Battery drains FAST lately.
I uninstalled a long list of software and problem is not solved.
Brooklynite!

brooklynite said:
Mine recently started this, it must be something we downloaded, plus I have the following problems too, they all started at the same time:
1) When someone calls, the screen stay blank for a while so the phone rings but the screen is off so I dont see whos calling
2) The background keeps changing back to the original blue picture thing
3) The WiFi keeps turning off and drians the battery, nothing I do stops it from turning on. I have all sorts of software running, I even ask Locale to turn it off if its between 12.01am to 11pm and still WiFi keeps poping up.
4) Battery drains FAST lately.
I uninstalled a long list of software and problem is not solved.
Brooklynite!
Click to expand...
Click to collapse
Shop Savvy?

I also started having the wake up problem and quicker then normal battery drain. I have an ADP1 phone which I updated to 1.1 a few days before noticing issue
I think that the theory of something sucking clock cycles is a good one. I noticed my CPU Usage (when nothing was running other then System Monitor) went from 0-40% to 20-70%.
I couldn't be bothered with the finer points of troubleshooting, so I took the thermo-nuclear approach and did a factory wipe.
Just before the mystery CPU cycle and wake up issue, I hadn't installed any new apps, BUT I did update a bunch of existing apps. After the factory wipe, I left off installing the following list:
Watts
StreamFurious
DroidFTP
Telnet
e-VoiceRecorder
VoiceRecorder
Constitution
Barcode Scanner
Astro
RingDroid
SlovoEd Classic English Dictionary
Things are fine now.

both of my g1's do this, and have done this out of the box, anyone turn off there screen with the keyboard out, and then close the screen and the screen comes back on with the lock screen up and then having to turn the screen back off? annoying

try the swapper app?
or turn phone off and back on, it might becuase you are usingahome or openhome or dxtop or sweeterhome, these app may slow down the interface a bit, try downloading droid sans tweak lite and fool around with that..
goodluck i also get this sometimes

brooklynite said:
Mine recently started this, it must be something we downloaded, plus I have the following problems too, they all started at the same time:
1) When someone calls, the screen stay blank for a while so the phone rings but the screen is off so I dont see whos calling
2) The background keeps changing back to the original blue picture thing
3) The WiFi keeps turning off and drians the battery, nothing I do stops it from turning on. I have all sorts of software running, I even ask Locale to turn it off if its between 12.01am to 11pm and still WiFi keeps poping up.
4) Battery drains FAST lately.
I uninstalled a long list of software and problem is not solved.
Brooklynite!
Click to expand...
Click to collapse
I'm having same issue as the OP and issued #1, 3 and 4 from the above post.

Hmm, im not experiencing any of the above posted issues, it may be a particular app that u have installed. I only have the wakeup issue sometimes, most likely when the phone is running slow from the browser or another memory draining app, but no app in particular.

Hmm, when mine fails to wake up, I never waited long enough for it to come back, just reseated the battery for a reboot.
Of the other problems, I have the "screen-black-for-a-few-before-caller-picture-shows-up" issue.

JayBachatero said:
I'm having same issue as the OP and issued #1, 3 and 4 from the above post.
Click to expand...
Click to collapse
what firmware do you have?
btw, dont count on Locale to turn off your stuff all the time, its not very accurate imo, at times its great, but thanks to the crappy g1 battery, they have a choice, constantly check time/location/.ect and drain the battery in a hour flat, or periodically check it and reduce battery drain, do you have any wifi programs that keep wifi on when phone sleeps (such as wifi lock and so on)? if so use the program on the market that writes up a log of its actions and see if its acting up
as for #1 (sorry im unorganized) my phone does that too, i believe its because i have 2 programs that run when the phone rings, let alone im sure locale is checking to see who is coming since thats a condition, which would make 3, and then i have a mp3 that plays when the phone rings, and i have a class 4 sd card (i know, i know), the way that programs work is that it has to go line by line of the code, if it is slowed down, or it has to execute other items before continuing that are slow to execute, than everything has a delay, but yeah from time to time i have this issue, phoneplus was a program that made me miss a few calls (1/4th of the time)
i think 3 and 4 are directly related, could be wrong

I was having the same problem right after I installed the app "Contact Owner"
No amount of reboots fixed the problem. Uninstalled and everything was back to normal.

@wootroot - I have stock RC30. Haven't rooted yet.

JayBachatero said:
@wootroot - I have stock RC30. Haven't rooted yet.
Click to expand...
Click to collapse
consider upgrading to the rc33 ota update yet? i had better battery life (and my battery didnt get as hot) when i used rc33
also, if youve had your phone since it first came out (rc19 i believe) and your battery used to get very hot, you might of damaged some of the cells (especially of the battery has expanded), if this is the case simply call tmobile and tell them that your noticing even after wiping the phone that your battery life is lasting shorter and shorted, even with out any programs installed from the market, i even went as far as to say that i made sure wifi was off, only 2g was on, gps was off, screen was dimmed, timeout set at 30 secs, and im still only getting a hour of life (none of which is true but it got through all the "well how about trying this and calling back if you still have a problem" bs, with the ota rc33 and the new battery, i noticed a pretty good difference

I have a modified version of this "doesnt always wake up". The phone is less than 24 hours old, it was a refurb they sent me for the last one that went dead. I used it with the rc33 it came with and found the problem, then figured it was hosed so i rooted and installed 3 of the versions of cupcake (The Dude, JF, and Haykuro) to see if they all had the issue- they do. Here is a video, hope you can see the attempted keypresses. There will be lines that appear, like the screen is broke..then, they will go away. Sometimes it takes 5 minutes to get the phone to turn on, however if I leave it on (never goes to sleep) it works flawlessly.
http://www.youtube.com/watch?v=ecQo2Ly2WUM

I get this all the time also...
Uninstalling dxTop doesn't change anything for me...it still acts the same...
I also get the problem that when someone calls me the screen stays blank for about 5 seconds and I can't tell who calling...

wake up issue
I am experiencing the same problem, with a brand new warranty replaced G1, what happens is when the phone goes to sleep it completely locks up, when I try to wake it up via menu, it does not wake. Plugging the phone in and trying ddms or adb does not work, ddms shows the phone as offline, also the device seems to get really hot when this happens, sometimes Call + Menu + Power resets it, and sometimes I have to pull the battery.
I think this may have to do with wifi turned on. Because when the screen goes off your phone switches wifi off and goes to 3G as default setting.
I think we should try leaving wifi on all the time and see if that solves the issue, im about to try that now.
It seems this is a known issue over at tmo forums

A couple questions:
When this happens to you guys is wifi enabled and connected when the phone is shut off?
What Rom, SPL, and Radio is installed?
I noticed this didnt happen to me until I enabled wifi, maybe I didnt wait long enough because its completely random, please send back your results
defcon

Phone randomly stops sleeping

My phone will randomly stop sleeping, this has happened pretty much since i've gotten it.
I will launch spare parts, running near 100%. Check partial wake lock, nope nothing. And nothing under any of the other menus in spare parts that would indicate it not sleeping. This will occur after a couple of days even after installing no apps, restarting does not fix, neither does pulling battery. It will just start happening and only way to fix is data reset / factory wipe until it happens again, but when it does start happening I might've not even be using it at the time.

Okay, i did actually finally fix it after months without factory reset, it appeared to be when 3g and Data-always enabled was ticked.

ryronz said:
Okay, i did actually finally fix it after months without factory reset, it appeared to be when 3g and Data-always enabled was ticked.
Click to expand...
Click to collapse
If this fixes my no sleep problem, I will name my first child after you.
I've been detailing the steps I've taken to resolve my no sleep issue on another forum, with the last action I took being a flash to factory ROM from huaweidevice.com, changing absolutely nothing on the phone for 24 hours, rebooting, and waiting another 24 hours. Without a reboot between charge/taking off charge, it would be 100% running. If I took it off charge and immediately rebooted, running would be more like 30% (ie: 'normal').
I'll give 'data-always' a go

the red krawler said:
If this fixes my no sleep problem, I will name my first child after you.
I've been detailing the steps I've taken to resolve my no sleep issue on another forum, with the last action I took being a flash to factory ROM from huaweidevice.com, changing absolutely nothing on the phone for 24 hours, rebooting, and waiting another 24 hours. Without a reboot between charge/taking off charge, it would be 100% running. If I took it off charge and immediately rebooted, running would be more like 30% (ie: 'normal').
I'll give 'data-always' a go
Click to expand...
Click to collapse
Wooh, nah for example my running time is 8.7% and screen on is 6.1% so that is pretty good, thats over the course of about an hour

the red krawler said:
If this fixes my no sleep problem, I will name my first child after you.
I've been detailing the steps I've taken to resolve my no sleep issue on another forum, with the last action I took being a flash to factory ROM from huaweidevice.com, changing absolutely nothing on the phone for 24 hours, rebooting, and waiting another 24 hours. Without a reboot between charge/taking off charge, it would be 100% running. If I took it off charge and immediately rebooted, running would be more like 30% (ie: 'normal').
I'll give 'data-always' a go
Click to expand...
Click to collapse
Okay im unsure now, was all fine yesterday, woke up at 7 to alarm, lost 2% overnight. then just put it under my bed but now that i've woken up i've lost 18% because it just stopped sleeping again. I didn't do anything except turn it on check battery, and turn it off. So back to being confused again

Still having this problem, for example. It was sleeping fine when I went to bed then at some point during the night just stopped.
Running 64.6% 10h
Screen on 10ish% 45 minutes
Highest item with partial wake lock in spare parts is like 5 minutes, no other indicators.
This is happening no matter which ROM i try.

Considering a stock ROM with exactly 0 changes still has sleep issues, its clearly a firmware "thing".
For me, it happens after being taken off charge.
For e.g. Last thing before bed I check my running time, and its somewhere around 35-40%. Plug into charger. Take off in the morning, goto work etc, check my run time and its 100% even without the phone being touched.
For the moment I just downloaded one of the "root only" reboot widgets from the Market. Its just part of my morning "get ready for work" routine to hit the reboot widget and reboot my phone.
Its a bit of a PITA but until new firmware is released I cant see a way around it.

the red krawler said:
Considering a stock ROM with exactly 0 changes still has sleep issues, its clearly a firmware "thing".
For me, it happens after being taken off charge.
For e.g. Last thing before bed I check my running time, and its somewhere around 35-40%. Plug into charger. Take off in the morning, goto work etc, check my run time and its 100% even without the phone being touched.
For the moment I just downloaded one of the "root only" reboot widgets from the Market. Its just part of my morning "get ready for work" routine to hit the reboot widget and reboot my phone.
Its a bit of a PITA but until new firmware is released I cant see a way around it.
Click to expand...
Click to collapse
Hey don't know if you've tested it further than that. But its much appreciated, that rebooting after charging does seem to work . But just wondering, if you know... does it only do it when charging via usb (computer) or AC or does it not matter?

I have exactly the same problem.

I also noticed that reboot helps, but only for a while. If i want my phone to go to sleep mode when the screen is off, i would have to reboot it few times a day... Turning WiFi/GPS/Auto-sync on/off does not have any affect on this.

ryronz said:
Hey don't know if you've tested it further than that.
Click to expand...
Click to collapse
As per your suggestion via email, I tried the Malaysian firmware.... It seemed that 'running' time was down alot, but battery life was still pretty average. That was doing nothing more than installing the Malaysian firmware and entering my Google account - no root, no launcher changes, etc.
The lack of Swype was a bit of a downer too
I gave it a whirl from 6:30am to around 5:00pm and 'running' was right down in the 10% range, but battery was still down to ~45% over that time in 'pure' stock form. DAMMIT!
Ah well. It was a good thought and hopefully it worked for you I'm back on roadhound + the OTA update as of about two hours ago.
I'm going to scour the SGS forums and see if anything there can be applied to the U8800 RE: battery life improvements.

the red krawler said:
As per your suggestion via email, I tried the Malaysian firmware.... It seemed that 'running' time was down alot, but battery life was still pretty average. That was doing nothing more than installing the Malaysian firmware and entering my Google account - no root, no launcher changes, etc.
The lack of Swype was a bit of a downer too
I gave it a whirl from 6:30am to around 5:00pm and 'running' was right down in the 10% range, but battery was still down to ~45% over that time in 'pure' stock form. DAMMIT!
Ah well. It was a good thought and hopefully it worked for you I'm back on roadhound + the OTA update as of about two hours ago.
I'm going to scour the SGS forums and see if anything there can be applied to the U8800 RE: battery life improvements.
Click to expand...
Click to collapse
Oh yeah sorry, try using something like juice defender to disable 3g when screen is off or something. 3g radio keeps it running, but it doesn't appear to be, this will stop the battery drains.
EDIT: That does work but its not ideal, turns out the u8800 and the u8800h use the exact same radio so im not sure now, don't know if there is any possible way to figure it out.

ryronz said:
3g radio keeps it running, but it doesn't appear to be, this will stop the battery drains.
Click to expand...
Click to collapse
Sometimes i have 3g data connection running, but phone goes into the sleep mode when screen if turned off. So this is not the cause.

knevski said:
Sometimes i have 3g data connection running, but phone goes into the sleep mode when screen if turned off. So this is not the cause.
Click to expand...
Click to collapse
Oh no, this is just the case for the U8800H malaysian firmware seems normal for all U8800 firmware.

I'm not using u8800H firmware and i have this bug.

Hey guys.
This may not really be the thing you need but I was having similar problems and running 100% on without sleeping etc and came accross another forum where this was an issue (cant remember where)and as trivial as it sounds the solution for me was to go into settings/ applications/ manage applications and running applications and go down to media storage and clear the data. I do this now and then when I have this problem and it seems to help.... Maybe worth a try? It seems to be an issue with a particular media file. I also try to reboot my phone after every charge. Note that my phone is totally stock

astewart said:
Hey guys.
This may not really be the thing you need but I was having similar problems and running 100% on without sleeping etc and came accross another forum where this was an issue (cant remember where)and as trivial as it sounds the solution for me was to go into settings/ applications/ manage applications and running applications and go down to media storage and clear the data. I do this now and then when I have this problem and it seems to help.... Maybe worth a try? It seems to be an issue with a particular media file. I also try to reboot my phone after every charge. Note that my phone is totally stock
Click to expand...
Click to collapse
Thanks for advice, but unfortunately this didn't help either. For some unknown reason, my running time is again 100% although the screen is off most of the time. In Partial wake usage, Android System is in the top of the list.

Oh, Android System partial wake lock seems to be a different issue, but maybe someone can help you out. Whats happening here is running = 100% yet there is no partial wake lock held. Quite unusual

ryronz said:
Oh, Android System partial wake lock seems to be a different issue, but maybe someone can help you out. Whats happening here is running = 100% yet there is no partial wake lock held. Quite unusual
Click to expand...
Click to collapse
Yes, it is confusing also because i have tried different ROM's with same result. I would have thought that all u8800 owners have the same problem.

same problem here...

Soo annoying, CM7 rooted G2 just died, no rhyme or reason

My T-Mobile USA G2 has been rooted running CM7 stable with no issues for a few months now. I reboot the phone a few times per week. Everything has been great for months, then all of a sudden my battery was low and the phone started to slow down. I figured it was just setCPU lowering the CPU down to the 245mhz I had it set to. Then all of a sudden it froze, I had to pull the battery, I thought that was kind of weird, but figured what the hell, why not. A good reboot can't hurt, right?
WRONG.
I put the battery back in and at the boot animation (blue arrow circling Android on a skateboard above "Cyanogen Mod 7" banner) shows up, but the arrow starts to stutter, then the screen dims -> then goes black. So I figure the time out activated, no big deal. Then I realize I can't wake hte phone up! No matter what I did, if I plugged it into my PC, the screen would come on (lock screen) but it wouldn't register any touching of the screen, therefore I couldn't unlock the phone, and it would just time out again.
I ended up having to reboot into CWM and do a Wipe Data and re-install of CM7 from my SD card for it to work!! I tried wiping dalvik cache, battery stats, etc... everything except for wiping Data, but nothing worked. I HAD to wipe my data and re-install the OS...
Anyone know why this happened? Or what could have caused it? At this point I downloaded the newer version (7.0.3) and after wiping installed that, now I have to re-download all of my apps and re-setup all of my settings (extreme pain in the @$$ and very time consuming)...
Thanks in adv.

Do a search, I thought there was some issue with low cpu speeds and waking the phone up from sleep. Basically, the cpu is undervolted and doesn't have enough juice to turn the screen back on.
Search around.. it's on here somewhere. In the meantime, increase your min cpu speed.
maybe in here?
http://forum.xda-developers.com/showthread.php?t=1043118

Thanks, I had read about that prior to setting my phone up, and that had never caused an issue for months... I don't get why it would all of a sudden cause an issue?
Also, I couldn't even get to my desktop to change the min CPU speed... no matter how long I waited, the phone wouldn't wake/wouldn't let me unlock it...
I ended up having to wipe the phone clean and re-install a fresh install... in the new install I have the min cpu higher than it was before.

Droid X locking up every night at 2:02am

Hey guys, so this has happened the last two nights -- at exactly 2:02am my Droid X locks hard. Just did it again. I have no idea what is going on here but I have to pull the battery.
Last night it was on the charger (And the screen was on) so when I picked it up this morning it said 2:02 on the lock screen. Just now I was listening to music and dead stop -- screen was off but I looked at the clock on my computer and sure enough: 2:02.
Just set the clock manually to 2:01 and started a song -- let us see what happens in one minute.
*SIGH*
My phone has been working generally well..... but then I had a strange issue last night where the phone became super unresponsive accessing the SD, so I rebooted. Then the 2:02 lockup .. and then today the battery drained really quickly. A check of CPU spy and the phone never entered deep sleep. Battery manager showed the phone never going to sleep as the "awake" bar went across the whole screen even though Screen on was less than 1 hour total.
Manual clock set to 2:01 did not result in a freeze as I let it go to 2:03... I just set it to 1:59 to see if that makes a difference.
Stock latest GB, root, debloat done myself (fresh install and debloat a couple weeks ago) .... really at my wit's end with Motorola phones. I have a Droid X2 but find that phone generally unusable due to the extremely lackluster performance including the constant audio dropouts, even with the latest GB release.
Anyone else ever seen this 2:02 thing? Or have any idea where I can even begin to look to fix it? I don't see a crontab file on here. I haven't installed any new apps other than the usual updates that seem to happen every day.
....Manual clock is now at 2:04 (from 1:59) with no freeze. So I don't know WTF is happening. I had rebooted the phone around 8pm tonight .. actually had to pull the battery. Did a "reboot" from the Terminal Emulator and the phone went black and never started rebooting.
I'm so fed up with this damn phone!!

That's not happening to mines
Hard reset your phone n back up SMS, files, etc.
Try different battery!
Sent from my DROIDX

Verizon i815 random reboots

Had my Verizon 7.7 i815 since 4-30 and love it except for one issue - it reboots at least
once a day usually when its connected to the charger.
I need help figuring out if this is a hardware issue so I can just exchange it or if is
software/other issue that I can resolve myself.
When it reboots it goes to a black screen with a single white dot in the center.
It is playing the reboot jingle when this happens.
Sometimes it will bootloop and I have to press the power button for a few seconds to
reset the tab.
Honeybar is installed and AdwLauncherEx is the launcher.
I have tried booting to stock recovery and clearing the cache and did a factory reset - didnt help.
The tab is rooted.
I also removed the Sandisk 16gb microsdhc card after a reboot at 5 am because I had read about users who were having issues with their tabs until removing or switching out their sd cards. The tab went without rebooting after that for 19 hours until I installed
Hidebar. After installing hidebar the tab rebooted twice within a minute so these two instances may be because of that app. I uninstalled it after that and went back to
Honeybar.

I have only experiened a white dot reboot when trying to swap the phone.apk (it was a never ending reboot). I otherwise haven't had it reboot on me. I don't use any bar hiding apps.
Sent from my SCH-I815 using xda premium

Just to be clear my tab was having the reboot issue long before
I installed hidebar - I only installed hidebar tonight and have
owned the tab for a week.
I am however able to cause the reboot consistently with hidebar.

Well the reboots started again after almost an entire weekend reboot free.
Going to exchange it at Verizon for another 7.7 tonight.

Good luck! hopefully the new one is error free.

I've had the same issue with mine, also a vz 7.7.
It was happening in a loop the other day and I managed to capture a video of the entire sequence.
I don't actually think this is a reboot but instead seems to be more of a screen and radio lockup.
I get the little dot in the middle of the screen. After 20 seconds or so the tab goes back to the lock screen. Once unlocked it has to re-connect to either Verizon or Wifi.
I tried disabling the wifi and 3g/4g networks and this seemed to improve the situation but yesterday I was able to get it to do the same thing with the radio's disabled so probably not chip related.
I'm still within my return window I think. Seriously considering returning the thing mainly due to this problem and the lack of ICS.
Had a GT8.9 previously and even though the screen isn't quite as nice it was a pretty great tab and cost half as much *and* can access the awesome AOKP ICS rom.
--tr

Yep, development for this tab is non-existent at the moment.
I'm stickin' it out tho and hoping for CM9 sooner or later.

Same here. I can't find a pattern to what triggers it. The first time i was installing a bunch of apps from my computer via Google Play (not tethered to PC). I pull my microsd and sim and it continues for several cycles. Did a bunch of the stuff you did also w/ clearing the cache and actually the first time i couldn't get it out of the loop (it would actually get into the desktop where it looks like it would be ok, then suddenly screen w/ the white dot in the middle and looping again). Never got close to depleting the built-in storage, so that's not the factor.
Sometimes I can get it to stop by turning it off by holding power down and turning it back on again. It doesn't happen a lot, but it's freakin annoying when it starts.
I don't have honeybar, but am running ADW.

Wow, good to know others who are going through the same issue...I thought I was the only one! I still have the reboot loop issue even after performing a hard reset. For me, the reboot loop only occurs when I'm on a cellular connection. If I'm on wifi or on airplane mode, it doesn't happen. I'm well past the exchange/return policy so this is extremely irritating.
Personally, the most frustrating thing is that my tab will be fully charged at the start of my day, then in my bag for the morning while I'm at work and then, when I take it out to use it, the battery is completely drained because of the reboot loop!!!
I'm hoping an update (ICS?) will fix the issue but I'm not holding my breath for it...

Same issue here. I am rooted, and originally thought the reboot was from Gesture Control app (awesome app!) when hiding navi bar. But after reading this thread, I'm not so sure.
I've only had the reboot loop once, here is my setup when it happened....
-had just unplugged from charger after full charge
-Mobile data was off, Wifi was set to sleep....never when plugged in..
-The device kept rebooting, so I powered off, went into recovery, wiped cache. I also turned off Gesture Control app functions (not sure if this was necessary however). This seemed to stop the reboot loop.
Would be nice if we could keep gathering info on the conditions that cause this, and potentially find a solution. It sucks having a dead tablet because of this issue.

My 7.7 does the same thing. I don't use the tab constantly, but I do notice the reboot on a fairly regular basis. Same symptoms as everyone above, except for me it doesn't go into a loop, it just reboots once with the white dot and then comes back fairly quickly, so not really a full reboot. I don't see the Verizon & Samsung splash screens, just the white dot then the login screen.
Mine is not rooted, has the stock ROM, and does not have any UI enhancing apps or mods. It's pretty much stock other than having applications installed, and nothing that really runs in the background because I have Advanced Task Killer kill auto kill every 30 minutes.
Not that big of an issue for me right now, but would definitely like to see it resolved.

gawd! It doesn't happen a lot, but when it does it's friggin annoying. Yes, it's the white dot and doesn't show the full bootup splash, kinda just goes to the desktop again seems ok for a minute and then boom- black screen w/ dot in the middle and it starts over again.
This last bout was pretty bad and it didn't respond to shutting it completely down by holding the power button and letting it boot again, which has sometimes fixed this in the past when it's looping like this.
Can't tell what is causing it, at first i thought maybe a live wallpaper, the 64GB sandisk microsd card, or a faulty sim (sometimes my tablet says SIM not inserted, even if it is). I tried changing all of those but it still happens. I haven't found a pattern of usage or other type of trigger to make it do this though.

I've only ever experienced this when I tried adding in the mms and dialer app from the GSM 7.7. Otherwise my tab has been rock solid.
Sent from my SCH-I815 using xda premium