SGS2 Random Shutdowns - Galaxy S II Q&A, Help & Troubleshooting

So yes there have been other threads recommending cleaning/tightening battery connectors, using monitoring programs to assess and alert on things like high temp and process cpu spikes etc... a lot of the time the issues raised have been to with someone only recently acquiring their SGS2, or after having "upgraded" their ROM.
Mine seems not to fit any of those scenarios.
A week ago, I found the phone off, so I switched it on and it bootlooped. Nothing new had installed prior, although the was an update to the ZD Box app which I read had problems, but I'd already uninstalled that. So, I rebooted the phone and it seemed to work fine. But no...
At random times whether the phone has been in my pocket or sitting on the desk, I will find the screen is black and none of the hardware buttons do anything. I have to hold the power button for quite some time before I see the Samsung logo and the phone boots up.
It happens several times a day. Battery/CPU monitoring/stats/alert apps show nothing out of the ordinary. I've uninstalled several recentish apps just in case, and no fix. Cleared all caches, fixed permissions, changed modems, no fix.
I'm now in the process of wiping data and flashing a different ROM (a newer version of illusion-xt to the one I've been using... excellent ROM btw), and I'll see if that solves anything.
What's weird is that I've had this phone for nearly a year and it's only just started happening now.
I'm wondering whether this sort of issue has become common with the SGS2 recently. Anyone else experiencing this, and is there are solution for it?

See how you go with the new rom.
If it's still happening, go back & do a completely clean install of stock; format cache, data, system, & internal sd card then flash stock rom in Odin (don't install any apps at all) & run that for a few days. If it's still happening on a relatively 'clean' stock phone, that probably indicates a hardware issue. Could be something simple like the battery, could be the USB/charging circuitry problem we see on here a bit or some other hardware problem.
See how you go with it & post back here.

MistahBungle said:
See how you go with the new rom.
If it's still happening, go back & do a completely clean install of stock; format cache, data, system, & internal sd card then flash stock rom in Odin (don't install any apps at all) & run that for a few days. If it's still happening on a relatively 'clean' stock phone, that probably indicates a hardware issue. Could be something simple like the battery, could be the USB/charging circuitry problem we see on here a bit or some other hardware problem.
See how you go with it & post back here.
Click to expand...
Click to collapse
Followed your recommended steps with the newer ROM. Seemed to be good for a day. I then found my phone off again while it was sitting next to me. I had just installed an app (from "untrusted" sources) just prior to this. So I uninstalled that. Found my phone off again a few minutes ago. This time the phone was hot and about 20% of the battery had drained.
Think I need to do another wipe of everything (except external SD) in case that app was the culprit?

[got a I9100]
if i were you i do this....
save my video/mp3.. stuff
remove microsd
remove sim
using cwm format system, data cache, dalvik, sdcard/emmc (depends on your cwm)
using odin flash a GB rom (i usually go with LA2 / JPLPC [ICS])
after first boot and few minutes dial *2767*3855#
next boot ill setup google account but will not do auto restore / untick auto restore.
shutdown remove battery put the simcard and see how it goes for a day or 2

It's switched off three more times today. The last time it happened the app "Battery Monitor Widget" alerted a "Voltage out of range" warning.
So far nothing's ever gone wrong while the phone is charging.
I may try formatting as has been suggested, but I think I'll try using a new battery first.

Please forgive my daftness as it seems I've misunderstood the instructions here.
Upon booting into CWM Recovery (I have v5.0.2.7) and navigating to "Mounts and Storage" I've discovered what you both mean by "format" in your instructions.
Would this mean following the Gingerbread section of the guide at http://forum.xda-developers.com/showthread.php?t=1457458 is what I need to do to get up and running, and then continue with the remaining instructions in this thread?

MonkeyScrotum said:
Please forgive my daftness as it seems I've misunderstood the instructions here.
Upon booting into CWM Recovery (I have v5.0.2.7) and navigating to "Mounts and Storage" I've discovered what you both mean by "format" in your instructions.
Would this mean following the Gingerbread section of the guide at http://forum.xda-developers.com/showthread.php?t=1457458 is what I need to do to get up and running, and then continue with the remaining instructions in this thread?
Click to expand...
Click to collapse
I have had this issue with certain ROMs in the past where I would get a black screen and no response from the hardware buttons. I found that on installing the ROM everything worked fine. Then I would go ahead and restore my apps, still everything was fine.... but once I configured Exchange sync I would run into the issue. My only option was to go back to a ROM that I knew worked on my device correctly.
In reply to your question above, If you have a ROM downloaded that you can flash in CWM then so long as it is stored on your SDCard you can format the system, data, internal SD and wipe cache, delvik cache from CWM. In doing this I would recommend making sure you know exactly what "internal SD" CWM is talking about. To be sure you could remove your SD card. I made the mistake of formatting the wrong card once and spent the next day recovering the data from it.
If you have the same issue with a new ROM then i'd recommend going back to a stock ROM using the link you posted.
Hope this helps.

I took my sdcard and sim out and rebooted just so I could see what would show up in the file manager. It would seem like there are no apps or mp3's or pics or anything "additional" available.
Strange as I don't recall ever using app to SD, and I could've sworn I saved at least a few MP3s and pics to the phone.
Maybe I'm just not looking in the right place. Where would I normally find my app folders without the sdcard being present?

Ahh... so once you put the sim in (but still without sdcard) apps folders show up in "/sdcard"
hmm... does this sound correct?

why are you making things difficult?
put your sdcard back, open file browser goto sdcard dcim
you will find pics and videos there if they are saved on your phone storage. copy them to micro sdcard.
simple
if you are on aosp rom than the structure is little different
PS: doesn't matter your sim is in or out.
Stock ROM
/sdcard
/sdcard/external_sd
AOSP ROM
/sdcard
/emmc

As instructed I formatted partitions, installed latest official ICS ROM (for Australia) from sammobile.com using ODIN. Didn't install any apps. Didn't sync. I still have the "black-screen-freeze" at least once a day for several days. Today it's done it 5 times already. Sometimes I find the phone is hot, sometimes not, and a couple of times I've found the battery drained as well.
I can't seem to find a standard pattern that's reproducible.
What now?

Related

TNTLite 4.4 issues

Hi everyone,
First time poster but have been reading and browsing for a couple month now and have been able to find fixes for all the issues on my own. I have however had this one issue from the beginning and have not found any fixes or even the issue being mentioned (been using TnTLite the entire time, going up the versions from early 3's to now 4.4).
When my Gtab goes to sleep or even sits idle for a while my WiFi just stops working. The connection is still there and Gtab thinks it's connected but I can't access the net until I turn Wifi off and on and then it works until I let it sit or the screen shuts off. This is annoying at the least and I would love to fix it, even if I have to go to a different ROM (but I do like TnTLite above others).
Does anyone find version 4.4 more laggy than 4.2.5? Gtab is just not as responsive and I seem to have a Flash issue where net videos crash after working for 1-15min.
Also I have CWM 0.8 and when I try to flash with a MicroSD I keep going back into CWM. I changed SDCARD to SDCARD2 in the common file but still my card is not being read. Basically if I want to install the stock ROM and nothing else I can't cause it only boots into CWM and not the SD card. I do have the card formated in FAT32 at 2048. Am I missing something, do I need to uninstall CMW first somehow?
If you re-read the first post in the TnT Lite 4.4 thread, you'll see that you can toggle the CWM back to stock recovery with some built in commands.
Yeah, I saw that as one of the options but I want to be able to patch via the micro SD card and CWM seems to be interfering with that. I mean if I revert to stock with CWM I will still have CWM installed. I want the true original state but more than that I want the MicroSD card recovery to work.
Switching to stock recovery removes CWM and will allow you to use the MicroSD to install. All you have to do is put a file named "command" in the recovery folder on your MicroSD card with the following contents:
--update_package=SDCARD2:/update.zip
When you reboot into recovery it will find that command and execute the update.zip on your MicroSD card.
Thank you!
It was my suspicion that CWM is interfering but I also had recovered from the SD card a couple times even with CWM installed, at least I think so, but it is good to know. I'm also still having issues with net video crashing now and again. The screen goes white and I have to reboot. Started when I installed 4.4 and now that I reverted back to 4.2.5 it is much better but still I had it happen just now and it never did before 4.4. The upgrade to 4.4 also slowed the tablet down which did improve as I went back to 4.2.5.
Try going into CWM and wipe dalvik cache and also do fix permissions, usually cures most of those problems after going from one version to another.
What exactly am I loosing when I wipe delvik cache, do you know? And thanks for the suggestion, haven't tried that yet.
Vigilantys said:
What exactly am I loosing when I wipe delvik cache, do you know? And thanks for the suggestion, haven't tried that yet.
Click to expand...
Click to collapse
Here is a post that explains it
http://forum.xda-developers.com/showpost.php?p=3844295&postcount=5

Phone not provisioned

I have a problem. After finally talkling myself into rooting my phone I was able to pull it off sucessfully, almost. See I havent had service on my phone for 3 months. In that time I have enjoyed using it for wifi, e-mail etc. The phone always kept saying not provisioned a bunch of times but always kept functioning.
I installed cyanogen 7.0.3 (Ithink) last night and after it booted up I said "great I didnt break it" but right in the beginng when I tried to sign into my gmail (at the time already logged into my dads wifi) It wouldnt recognize that I am signed into a wifi. it just kept asking about a data plan. I dont get it.
1 year old Aria
Try going to Settings > Wireless & network settings > Mobile networks, and unchecking "Data enabled".
That was one of the first things I check. I got no idea why it won’t let me jump on internet or market even though I will see on my phone that I am connected to a strong wifi source. Then I'll use rom manager to restore back to 2.1 and my wifi will suddenly work again. It’s driving me nuts because I am having fun with cyanogen mod but the I’ll revert back to 2.1 because I have no internet
Try bypassing ROM Manager. In general there are all sorts of issues that can occur if you use ROM Manager to get to Clockworkmod on S-ON devices like the Aria. I'm not saying this is the actual cause of your problem, but it's one thing you can try.
Shut the phone off completely then do volume down + power button to get into Clockworkmod and try installing CM7 again.
Also, make sure you are doing a full wipe when you upgrade to CM7.0.3. You can't retain any settings from previous versions.
1) Boot into Clockworkmod
2) Wipe data/factory reset
3) Wipe cache partition
4) Advanced > Wipe dalvik cache
5) Partitions menu > format system
6) Install Cyanogenmod zip from sdcard
7) Install Google Apps zip from sdcard
8) Reboot
Parden my newb status for asking I'm learning quick. but after I go ahead with wiping all my data etc. do I keep super user status or do I have to download various boot drivers and root my phone again?
I also just noticed that as my phone was booting up from clockwork recovery it said at the end
"no sd-ext found. skipping backup of sd-ext" Maybe that could have been the prob?
Last question is I just bought a 8 GB sd a couple days ago, should I partition it while I am doing all this? Thanks alot for the help
BeanTown_HTC said:
Parden my newb status for asking I'm learning quick. but after I go ahead with wiping all my data etc. do I keep super user status or do I have to download various boot drivers and root my phone again?
Click to expand...
Click to collapse
Yes you will still be rooted. Clockworkmod will still be installed on your phone (which is what you use to install ROMs), and the ROMs that are available on this site (including CM7.0.3) are already pre-rooted. You shouldn't ever have to use Unrevoked again.
I also just noticed that as my phone was booting up from clockwork recovery it said at the end
"no sd-ext found. skipping backup of sd-ext" Maybe that could have been the prob?
Last question is I just bought a 8 GB sd a couple days ago, should I partition it while I am doing all this? Thanks alot for the help
Click to expand...
Click to collapse
That just means you don't have an ext partition on the SD card. It's normal.
If you partition your SD card and dedicate a portion of it to an ext partition, you can use it for additional app installation space. The Aria's internal memory is somewhat limited so this can be helpful if you like to use a lot of different apps. You don't have to partition the SD card before installing the ROM, although doing it before installing a clean ROM might save you some trouble of having to back up anything from the SD card.
You don't HAVE to partition the card if you don't want to. It's only if you want some extra app space or not.
Great it worked. My WIFI agnolidges me. That was wierd.
Thanks alot for the help.

[Q] Corrupted Internal Memory

Hello people. I have a 32 GB Wi-Fi only Tab, running seraphimserapis' CM9 preview kang.
I'll dive right into things here. Earlier today, I flashed the above ROM, everything went perfectly, booted up just fine, and got all my apps back up and running. I was using my tab fine for the entire day with no problems to speak of. Later in the day, I began transferring some misc. files (documents, music, etc) to my internal SD card via MTP USB transfer. After the transfer was complete, I unplugged my tab, and went on my merry way. The next time I booted up, everything began FCing on me, and nearly every app I tried to open immediately FCed. Thinking it was a temporary bug, I rebooted my tab, but the same problem persisted, multiple different processes fced upon boot, and almost all my apps would fc as soon as I opened them. After trying a few more times, I gave up, and booted back into CWM (which I can do perfectly fine), cleared cahce and delvik cache, and did a factory reset. This however,seemed to only augment the problem. Upon booting up (after doing that initial tab setup), trebuchet FCes (in a "FC loop", as it continually tries to open), and the tablet is completely unusable. I have tried wiping cache, reformatting and rebooting several times, each time with the same result
I am able to get into settings however, by plugging in the tab, and clicking USB debugging (for whatever reason, settings does not FC), and am able to connect to my internal memory via MTP. When the tab pops up in my computer, it says I have 25 GB out of 28 available GB, but when I click on the folder, it is completely empty. If i try to move files over to my tab, or even create a new folder, I get an error message saying "the device has stopped responding or has been removed". (Pictures below)
http://img141.imageshack.us/img141/9855/75464072.jpg
http://img190.imageshack.us/img190/3395/61277691.jpg
I do not believe this is a problem with the rom for two reasons. (1) no one else has had this problem (to my knowledge), and (2) it was working fine the whole day, until i did that file transfer (that being said, this is my own amateur opinion, which you may choose to completely disregard it in your diagnosis). I am 99% sure I didn't unplug the tab while files were still transferring, but I did not unmount the storage or eject it or anything fancy of that nature before I unplugged it.
My question is, is there any way I can somehow reformat the internal memory of my tab? Otherwise, is there some other possible fix you experts may possibly have? Or am I screwed?
I apologize in advance if you ask me to try something and I cant respond promptly. Its 3AM here and i need to wake up early tomorrow. Thank you in advance
Edit:
I am quite convinced there is some kind of internal memory corruption problem here, but I really am not an expert enough to know for certain. The tablet still boots up fine, but is completely unusable as trebuchet fc loops 90% of the time i reboot the tab. Obviously, the entire thing isnt trashed as it appears to boot and get into the system fine, but I it's still completely unusable from that point on.
I have tried formatting the /data and /cache partitions of the internal memory to no avail. I would try formatting /system, but from my understanding, thats only advisable if you are able to flash a new rom after formatting, but if i cannot write into my internal memory, then there's no way i can flash a new rom. Conveniently enough, I deleted the .zip file for the rom off my internal sd, and i cannot access my clockworkmod recovery from CWM (gives an error, I don't think that would have worked anyway) since the internal sd is (i believe) corrupted. I also tried mounting as USB from CWM, and that also gives an error...
I am clean out of ideas. I'm not sure if this is a completely unfixable problem, or if self repairing is well within the realm of possibility. If someone can shed some light on me that would REALLY be appreciated. Otherwise i might have to send it back to sammy (still under warranty), which i dont mind doing, but if they boot it to find an ICS rom, they probably wont be so keen to repair it...perhaps there's a way to brick it further so they can't tell?
UPDATE 2:
Problem fixed! I still don't have a clue as to what the problem was, but thankfully I managed to escape out of this one. I tried pushing a new ROM via adb, and it worked (apparently), but this just forced me into a boot loop (never hit the homescreen).
As a last ditch effort I pushed the stock ROM, and completely removed root, and it worked. I can now boot up past the spash screen without all all my processes crashing. Really a strange issue, I have my theories, but they're probably blatanly wrong so I'll just keep them to myself. Im just glad I don't have to send it back to sammy... I plan to re-root shortly. I am confident I will get no further issues.
Even though no one helped me directly, it was thanks to the plethora of information available on this forum that I was able to resolve my issue...and for some reason, making a thread where I'm just talking to myself helps a bit too...maybe im just weird. Anyway if anyone's reading this, thanks again xda
.......HOW??
brennanyama said:
UPDATE 2:
Problem fixed! I still don't have a clue as to what the problem was, but thankfully I managed to escape out of this one. I tried pushing a new ROM via adb, and it worked (apparently), but this just forced me into a boot loop (never hit the homescreen).
As a last ditch effort I pushed the stock ROM, and completely removed root, and it worked. I can now boot up past the spash screen without all all my processes crashing. Really a strange issue, I have my theories, but they're probably blatanly wrong so I'll just keep them to myself. Im just glad I don't have to send it back to sammy... I plan to re-root shortly. I am confident I will get no further issues.
Even though no one helped me directly, it was thanks to the plethora of information available on this forum that I was able to resolve my issue...and for some reason, making a thread where I'm just talking to myself helps a bit too...maybe im just weird. Anyway if anyone's reading this, thanks again xda
Click to expand...
Click to collapse
I'm hoping you see this reply as its been quite a while since you've had the issue. I'm working with a Galaxy S2 Skyrocket with the same intenal memory corruption/ files system corruption you were facing. I followed what you did regarding push a rom thru adb and that worked for me, but my question is, how did you get the roms to successfully write if you couldnt write to internal memory? My system is mounted as read only apparently and locked itself with whatever I had on there on August 28th. No matter how many times I format, erase, or wipe it, it returns to the same state as if its a deep lock on it.

[Q] Constant battery drains - How do I get my CM9.1 work again

Hey guys,
I have been fiddling around with my phone the last two weeks and it is annoying me now.
I have had CM9.1 on my phone for months and it was fine. ONly recently started to drain battery.
Did a factory reset and flashed it again. no change. Made the move to CM10.1, but that was even worse. Loads of wakelocks that kept draining my phone.
Ended up doing a full wipe including my internal SD Card (and even the external SD as media scanner acted up). complete formating. Reinstalled CM9.1 now as that had worked for me fine in the beginning (and also on my girlfriends phone with 1.5 days battery life...).
But even though I did a complete clean of the phone I still have battery drains.
I want to do a wipe AGAIN just to make sure I did everything ok.
Just want to make sure I am doing everything right:
Format /emmc
Wipe system, data and cache
install CM9.1 from external
flash gapps (the latest one for ICS from April 2012)
fix permissions
start phone, set up google account
restore only a few apps I need for the beginning (SMS Backup+ etc) (don't use titanium back up)
Wipe cache again, fix permissions
reboot phone
Please could somebody confirm this for me?
Thanks
Seems like a normal full wipe. Can't you install BetterBatteryStats to see what's causing the wakelocks? Wipe everything this often to get normal battery life shouldn't be necessary.
Sent from the Matrix
yes. been using betterybatterystats over the last few days and tried figuring out the issues. everytime I fix one thing another thing pops up. Media scanner, then wlan_rx.., then RILJ etc.
And the phone worked fine for months. Not sure where I am going wrong. Nothing has changed concerning my Wifi connection or phone provider.
So I will try a full wipe again today and then start slowly with apps.
Thanks for confirming the process. Will report back
Maybe have a look in this thread:
http://forum.xda-developers.com/showthread.php?t=1909996
I know you run CM (I assume stock kernel), so the steps for Siyah kernel could be ignored, but the other advices are very usefull and absolutely great for battery life (I use them myself).
Sent from the Matrix
Hey!
Thanks for that thread. Very helpful.
Just wiped phone again and installed cm9.1 and gapps. No apps apart from BBStats.
So wakelock #1 I have at the moment is the wlan_rx_awake. This can be tracked back to the WiFi here in my university. Some guys got rid of the wakelock by using "leankernel" for their GNexus. Unfortunately that is not available for SGSII as far as I know.
Is it wise to try a Siyah or Dorimanx kernel as an alternative?
Questions about specific wakelocks can be asked here: http://forum.xda-developers.com/showthread.php?t=1179809.
These guys can help you better than I can Good luck.
Sent from the Matrix

Phone is bootlooping after attempted ROM update

I was running AOKP 4.3 and downloaded the latest 10/30 update. I flashed in CWM recovery and everything took as normal. I wiped cache and dalvik and then rebooted. Apps updated as normal and lockscreen presented. I unlocked and immediately received two force closes (timely & swype) if I click them or not, if I unlock or not, the phone will crash and reboot every 6 or so seconds. Luckily, if I'm quick, I can reboot into recovery. I am in CWM but my external SD card won't mount so I can't load anything onto it and attempt a new flash and the only rom file on my internal SD is the one that got me in trouble here. I've gone back into recovery and attempted to wipe data/factory reset/etc. and nothing changes. Internal storage won't mount when I'm connected to my computer with a cable.
I don't mind losing everything and starting from scratch. I've tried to seek out my own info but there is SOO many threads and videos and I don't know where to start. Can someone please tell me the most efficient way to get back to a clean start? I was on JellyBeans from 1-22 and looking back that was probably more my speed. I shouldn't have tried to switch to 4.3 at all. I was able to run AOKP for about two months without issue but I seem to be out of my element here.
Can anyone smarter than me please take pity on me here? Sorry to waste your time as well.
Try just wiping the system, reflash rom and gapps. I think this keeps your apps in tact, if just not just use tb and restore. Otherwise full wipe sounds necessary, but not horrible. Just restore everything with tb

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