So I've recently been having an issue with my phone that I haven't been able to fix through various standard fix methods. I've tried searching for this exact issue but the only thing that seems to work for other people (albeit they were on different devices when they had this problem) hasn't fixed my issue.
Long story short, I went from SlimROM 2.2 (and many other 4.3 based ROMS) to ForkMyLife 4.4.2 to try out KitKat, and I eventually wanted to go back to SlimROM.
I always full wipe (System/Data/Cache/Delvik) and then flash my ROM (in this case it was Slim), a reboot netted me a bootloop/boothang on the bootanimation. Wiping Cache+Delvik cache will get me to Optimizing Apps, but then it hangs at Starting Apps. At which point I can battery pull, restart, and it will restart just fine (typically, I did have one time where this didn't work). But I'd have to do this series of events every single time I reboot. I've tried multiple ROMs, multiple kernels, but everything ends up doing the same thing after a reboot. I've even done a full Stock 4.2.2 Image flashing (full SDCARD/DATA wipe an everything) using mskip's Toolkit, re-rooted and re-did my entire phone to Liquid 2.37 booted up the first time no problems, but the boothang was back on the very first reboot.
What is somewhat odd to me, is that I can run a 4.4 based ROM with no boot issues though. I ran FML 4.4.2 for a few days and numerous reboots, and the same for OmniMetal 4.4.2 to see if it would lead to any boothangs and I had no problems with either.
Any ideas or thoughts from anyone on why reverting back to 4.3 after a 4.4 ROM would cause so many issues?
Related
Short version:
Use CWM or TWRP to (1) format sdcard, (2) erase dalvik cache, (3) erase cache and (4) factory reset. This seems to resolve at least one source of random reboots. If installing a new ROM, do that first and then followed by the four steps, then boot into the new ROM. Step (1) may be the important one (in which case it might, in principle, be possible to solve the problem while saving userdata), but I don't know.
UPDATE: It was working fine and I had to spoil it all by installing MIUI, just for kicks. Now, the old problem is back and the solution above doesn't seem to work. Looks like this is not a completely reliable solution...
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Long version:
My wife's GNex was in a very bad way. It is entirely stable in Android 4.0.2. But if either upgraded or flashed to anything else, will randomly reboot. Actually, it's not even that random--it will reboot on its own within a couple of minutes of idle with the screen off. I tried all sorts of things--flashed different ROMs, radios, etc.--factory reset multiple times. Googling turns up lots of chatter about random reboots but little by way of viable solution. I figured that the problem may be hardware related. But all Samsung's servicing did for me is to return the unit to 4.0.2. At that time, 4.0.4 was just released and the local servicing centre hadn't even received their copy of the ROM (for yakjuwx). In the end, I 'solved' the problem by rooting and disabling the OTA update notification. (My wife wasn't bothered by the fact that she wasn't running the latest Android version. And the phone works fine in 4.0.2 otherwise.) Work and life caught up and I didn't think much of the matter after that.
That was about a year ago.
Recently, I migrated my wife to a brand new GNex, and took the opportunity to try my hand at solving the problem again. I flashed the latest 4.3 ROM, the latest stable CM10.1, Paranoidandroid, etc. But no matter what I tried, somehow, the phone is stable only with Android 4.0.2 (ICL53F). A chance find online mentioned something about data corruption on the sdcard as a source of problem, and that the usual factory reset doesn't actually reformat the sdcard (it only marks it as empty). Putting 1 and 1 together, I used CWM to do the things listed above (see "short version") and now, the phone is running stock 4.3 (JWR66V), stable CM10.1 and Paranoidandroid without random reboots so far. So now, I am a happy camper, though with one extra, fully functional white GNex.
Footnote: If you don't understand what I said in the short version, it's best you don't try doing anything yourself without first reading up on fastboot commands. This is one place to start. I am not responsible for anyone bricking their device fooling around.
Thanks for reading.
Update to my adventure.
Just about resigned to the fact that the phone is back to its old ways. The old tricks no longer work. What happened next?
1. Left off for more than a day (I gave up).
2. Installed AOSPA PARANOIDANDROID 3.96--using CWM, installed ROM, GApps, wipe dalvik, wipe cache, format sdcard.
Weirdly, the phone now seems fine. It hasn't rebooted by itself after 30+min in sleep. The old problem was that it will invariably reboot by itself in within 2 minutes from screen off so even if there are other problems, the old one is not there anyway.
Something in the steps above seems to have made a difference.
Still monitoring.
I have read around regarding this problem without luck, and hope that someone can advise if I have missed anything.
I used to use this phone and as I liked to tweak it was running a custom rom (think it was Wanams). Anyway I got an upgrade ages ago, and my wife carried on using the phone for a while. As she just needs a standard rom I recently decided to factory reset and use Odin to flash the newest stock rom (N7100XXUFNE1 - UK). This is when the problems started. Initially the Wifi wouldn't come on, but after factory resetting and using the Samsung Updater in Kies I finally managed to get Wifi back. Then, while setting it up and installing apps from the Play store it started freezing and had to be rebooted every 5 or 10 mins. Finally after doing this a couple of times, all the apps were installed and after leaving it to "settle" it seemed to be better. Now however, 2 or 3 times a day, when playing games or using other apps, it will just reboot.
What I have tried is:
* I have tried clearing cache through the stock recovery
* Tried a number of Factory Resets
* After reading about the SDS problem I have tried running the "dummy file generator" to fill the internal memory and this completes ok. I guess this means that although I have memory that is/was susceptible I applied the original SDS fix early enough with the custom rom that all the memory is still ok?
As I have the newest bootloader I can't downgrade that, but as I don't care about triggering Knox I was thinking of rooting and installing a custom rom to see if any of the other Kernels help?
Has anyone got any idea's what could be causing this and what I can do to fix it?
Thanks.
I've been regularly running cyanogenmod 11 on my Bell S3 without many issues. Last going off, I believe I was running either M11 or M12 of CM11, and all was well. Then, curiosity got the best of me, and I slapped on CyanideL Lollipop beta, and while that ran pretty damn well for me for about a month, I reverted back to CM11 a few days ago due to some minor bugs and annoyances (mostly camera). Anyways, since reverting back to CM11 M12, my phone has been randomly shutting off, not rebooting, just off. It has happened while it's in my pocket not really in use, or it can happen while I'm going to check my text messages.
Thinking this was an issue maybe with M12, I updated to the latest nightly, but nope, its still the same. Some of the times that its happened in my hands, I've seen the Power Button menu pop up, and then disappear. A few seconds later, boom, off she goes. It always powers up again when I power it back on, but I would like to try to get to the bottom of what is causing this, as it is being very annoying for me.
The question is, what can I do to try and nail down this issue? When flashing back to CM11, I did the full wipe, then dalvik/cache after the flash. Is there something that happens when you go from 5.0 back to 4.4 that may cause this?
This is possibly related. I tried out an unofficial cyanogemmod 12 rom on my AT&T S3 for a while, but decided to revert due to camera not working. So I installed S3Rx ROM on the phone and had some issues. The phone would get stuck on the loading screen and never get past that. I did the standard data/factory reset, cache wipe and dalvik wipe before installing S3Rx back, but no luck. The only way I could get it to install correctly was by formatting /system, /cache, /data and /data/media in ClockworkMod recovery. But be aware that you will lose all personal data when you do that so be sure to backup.
Alright, I'll backup what I need to, and do a full wipe as you suggested. I'm pretty sure I did that when I downgraded to begin with, but no hurt in trying it again.
You could flash back to completely stock 4.4.2 using firmware from sammobile.com, depending on the bootloader on your phone.
audit13 said:
You could flash back to completely stock 4.4.2 using firmware from sammobile.com, depending on the bootloader on your phone.
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Click to collapse
If I do go back to Stock 4.4.2, would I be able to re-root again? Its been a couple of years since I had to mess with stock, so I don't know what has changed.
I've tried a few different things here, completely wiping everything, installing a 4.4.4 kernel, installing CM11 from scratch, restoring from TWRP, etc etc. Still having the issue.
Last thing I'll try before going to stock is to try going back to lollipop.
Update: I'm starting to think that this is just a coincidental hardware issue. It seems to have something to do with my power button, perhaps there's something stuck in it that's cause the button to be pressed. Right before it shuts off, the power menu pops up for a split second once or twice, then the phone becomes unresponsive for a second, then its off. Certainly sounds hardware related. Just attempted lollipop again, and same result.
I think you are correct in your assessment. Open up the phone and see if you can find anything that looks odd.
Hi All,
Having some issues with my Galaxy Note 10.1 which I've had for quite a while now. It's rooted but with Android 5.0 stock rom and a custom kernel.
Just now (like 20mins ago) I tried to enable Adblock plus app, the app said it can't automatically change the settings - even though SuperSU was installed and had no issues with it previously. So like all things thought I'd give it a reboot that ought to clear it out. That didn't work, so tried clearing cache (Dalvik/ART/Cache), Still no joy.
I'm a s/w engineer, but not and android/bootloader expert, so I've tried to grab the dmesg and boot logs which I've attached, I've got some stuff on the internal SD (app data) which I'd like to keep, hence I'm not going for the full wipe.
Please take a look at the logs and see if you can determine how to fix this issue, my initial thoughts were there are some issues with the flash storage (bad sectors/partition table?), if I could grab the image and dd the image again I'd be OK - but I don't know much about about android boot loader/kernel etc so can't say.
Ok it has been fixed by wiping data - but I've lost my data and installed apps!
Is there anyway to find out which file/app is causing the boot loop so I can restore data, delete the offending file?
Well, I shall give a bump to this topic, with a little more info. Though probably not really useful.
First I had stock 5.1.1 deodex pre root etc ROM that, after I tried to insert a nano sim card (mine is a 601 3G model) that got stuck, it entered on a bootloop, I had to open it, take the sim card out, and it was still on a boot loop. Tried to install another image, still bootloop, tried to reinstall the original one I had, still bootloop, wiped data, worked fine.
Then almost 2 weeks later, everything worked fine, went to watch a video, the sound was mute, tried to turn it on but everything looked fine, decided to restart because it would probably fix the problem. Got a bootloop. Wiped the data, everything was fine again.
Now, a little more than 2 weeks later, seems like the wifi is not working, thought all my other devices are, guess it's the same problem, decided to restart it, and bootloop again. I'm currently trying to update my TWRP, and gonna try a different ROM, and wait to see if something like that happens, until then, I wonder what could be happening... I remembered an Asus Device that I had that had different firmware versions for 4.4 and 4.1, so if I tried to flash a 4.4 on a 4.1 firmware it wouldn't work, and for downgrade, the same problem happened, and wondered if Samsung has some difference between versions 4 and 5.
ssj4maiko Let me know if you find a more stable rom - I went back to pretty much stock, but with root as I wanted to use all the Samsung apps, but this constant random bootloops are annoying!
I had the latest 6.0.1 samsung rom (CPK2) which was giving me problems with freezing. So I am trying to upgrade to an 7.x.x rom, either RR, AIPC, or Lineage. But none of these roms allow the T800 boot to get beyond the initial splash logo screen. I am using latest TWRP, 3.1.1 to wipe and install rom. I am not getting any install errors. Boot loader is confirmed as CPK2.
FYI, I am able to get back to the samsung rom by reflashing it with Odin.
Update 1: In the final attempt of upgrading I installed the official 6.0.1 fw which boots fine unlike the aforementioned alternatives (very strange). However, lock ups and now screen blanking more frequent. This time wiped everything including storage. It looks more like a hardware issue but I wonder if this could be malware even after wiping everything. I will have to take this in for repair but have little hope of solving this problem.
mach281 said:
I had the latest 6.0.1 samsung rom (CPK2) which was giving me problems with freezing. So I am trying to upgrade to an 7.x.x rom, either RR, AIPC, or Lineage.
Update 1: In the final attempt of upgrading I installed the official 6.0.1 fw which boots fine unlike the aforementioned alternatives (very strange). However, lock ups and now screen blanking more frequent. This time wiped everything including storage. It looks more like a hardware issue but I wonder if this could be malware even after wiping everything. I will have to take this in for repair but have little hope of solving this problem.
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Click to collapse
My wife has the US Cellular 10.5 variant (T807R4). It was freezing so frequently it had become almost unusable for anything but watching videos. Rooting and disabling most of the Samsung apps did not fix the problem. I wiped the system with TWRP only to discover that none of the custom ROMs would work on this model. I downloaded and flashed the stock Samsung MM firmware (and it sat on the opening splash screen for at least 15 minutes before it finally booted up) and for the hour I used it after setting it up, I had no problems. I had previously cleared the cache with Titanium Backup and that also seemed to be a temporary fix. My conclusion is that something is happening when the cache fills up that causes the freezes but I'll need more data to say that for sure.
Just an update: I was going to have the hardware looked at so I wiped everything including the storage. But when I took it to the shop and was asked to demonstrate the freezing the tablet wouldn't. So I took it back and it was running OK until a couple weeks later when the same problems reared there heads.
Somehow I managed to get a 7.1.2 installed and the T800 is running great...so far. I'll post back if the freezing starts again.
mach281 said:
Just an update: I was going to have the hardware looked at so I wiped everything including the storage. But when I took it to the shop and was asked to demonstrate the freezing the tablet wouldn't. So I took it back and it was running OK until a couple weeks later when the same problems reared there heads.
Somehow I managed to get a 7.1.2 installed and the T800 is running great...so far. I'll post back if the freezing starts again.
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Click to collapse
Please explain the steps to install 7.1.2 (and which ROM you used) and update on the freezing issue. Most of the freezing issues I have read about seem to be on LTE variants (SM-T807x) so I was about to buy a wifi only (T800) tablet, thinking that would be a solution to the problem. If that's not the case, then I shouldn't waste my money.
The instructions for installing a non-stock ROM are on the dev's host page in Tab s forums. I first tried Resurrection Remix and now am on LineageOS. It was only after I wiped the internal storage area that I was able to get past the 7.x.x boot screens.
I found the stock rom 6.0.1 freezing issue persistent. I believe the problems started for me with XAR H4 and really picked up with K2 (roms supplied by sammobile). The tablet would frequently just freeze while working in an app: the screen and hardware buttons would not respond at all. Never had that problem with Android 5. The only thing I was able to do to unfreeze it was to reboot into download mode then restart the OS from there. I sometimes found that if I left it frozen overnight it would unfreeze itself by morning.