[Q] Wi-Fi Connection forces Reboot - Verizon Galaxy S 5 Q&A, Help & Troubleshooting

Rooted Vz S5 and about a week ago, updated Kernel via Odin (OTA updates were frozen). Worked fine, seemed to have no issues. Last night, however, any connection to Wi-Fi network forces a soft reboot. Leaving Wi-Fi on but unconnected does not cause the problem, but anytime it connects to router, every 30 seconds or so, it rolls into a soft reboot. So, for now, stuck sucking data. Any ideas on what may be the problem? I noticed also some odd looking artifacts on screen when the phone goes past the splash screen to lock screen. Bit of an android noob, so any help would be greatly appreciated. Not sure if this was just a coincidence, but I had also received a notice from Google "advising" me to uninstall towel root.
Cheers

JammerJoe said:
, updated Kernel via Odin
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Click to collapse
Did you update the rest of the system, or just the kernel? System version must match kernel version.

Thanks for the reply. I update the system as well. However, I did not do a complete wipe at the time. So, I went back, wiped, and flashed over again to the updated system and kernel, re-installed towelroot, flashed the old kernel, and then back to updated kernel again. Pain in the rear, (as all the apps and data had to be restored), but it looks like everything is working as it should now. Kind of an odd bug as nothing else appeared to be causing problems other than connecting to Wi-Fi.

Related

i9505 black screen after reboot

Hello,
I have a problem with my i9505. The phone had been rooted with stock ROM. I've installed Avast Antivirus and decided to install Anti Theft feature. Installing it requires reboot. After confirming rebooting the phone beeped twice and rebooted. And this is where my problem begins.
After reboot the screen is black. It shows nothing. The phone boots, LED shows charging, connecting and disconnecting charger makes phone beep, but with few seconds delay. Connecting to PC shows content of phone memory.
I have managed to get to recovery. Odin had seen the phone so I've flashed official Samsung ROM. It didn't help.
Surprisingly after few hours with battery removed the phone started to work normally... until the next reboot.
And now it works until the reboot. After reboot the screen is black. After about 30 minutes without battery it works again.
The phone never got dropped or damaged in any way.
Before I get my phone to the service (hoping that they'll fix it under warranty) I'd like to ask you, if somebody had similar problem and knows how to fix it.
Thanks in advance.
Same problem on same phone
Hi,
I too had this problem, and fixing it wasn't difficult, however I used the TWRP recovery which @ingvarr_zaag probably doesn't have installed (seeing as they had stock firmware). Nevertheless I can confirm this identical problem on my own i9505.
I was using a CM10.1 nightly build for my i9505 and attempted to install the AVAST Anti-Theft feature using the root install method. On the first attempt at installation there was a free-space error, in which the amount of free space shown in the /system partition had overflowed and showed negative free space. To work around that error I filled up my /system partition until there was only 100mb free and then the install worked. All went well until I did a reboot; the phone hung at the i9505 screen.
I tried rebooting the phone and removing the battery for a short while, but nothing worked - the phone still hung at the i9505 screen. However, all other functions worked, so I just reflashed CM10.1 after wiping /cache, /data (but not /data/media), /system, and the Dalvik-cache (though that is in /cache AFAIK so pretty redundant). All was fine after that reflash, other than the annoyance of having to set everything up again (didn't make a backup recently).
Obviously the Anti-Theft wasn't very secure if it could be removed by a simple reflash. But to be fair, I highly doubt any software can protect itself from a format!
Anyway, just letting people know that I can confirm this this problem exists, and how I fixed it on my phone.
ingvarr_zaag said:
Hello,
I have a problem with my i9505. The phone had been rooted with stock ROM. I've installed Avast Antivirus and decided to install Anti Theft feature. Installing it requires reboot. After confirming rebooting the phone beeped twice and rebooted. And this is where my problem begins.
After reboot the screen is black. It shows nothing. The phone boots, LED shows charging, connecting and disconnecting charger makes phone beep, but with few seconds delay. Connecting to PC shows content of phone memory.
I have managed to get to recovery. Odin had seen the phone so I've flashed official Samsung ROM. It didn't help.
Surprisingly after few hours with battery removed the phone started to work normally... until the next reboot.
And now it works until the reboot. After reboot the screen is black. After about 30 minutes without battery it works again.
The phone never got dropped or damaged in any way.
Before I get my phone to the service (hoping that they'll fix it under warranty) I'd like to ask you, if somebody had similar problem and knows how to fix it.
Thanks in advance.
Click to expand...
Click to collapse
Flash stock firmware using odin
Go to stock recovery there factory reset and wipe
Reboot
Note all data will be lost take backup b4
.
sheomualjy said:
Hi,
I too had this problem, and fixing it wasn't difficult, however I used the TWRP recovery which @ingvarr_zaag probably doesn't have installed (seeing as they had stock firmware). Nevertheless I can confirm this identical problem on my own i9505.
Click to expand...
Click to collapse
I had Clockwork Recovery installed but I couldn't use it, because after reboot the screen was black. I managed to get to android recovery and flashed stock Samsung ROM by Odin. It didn't help.
After 2 weeks in service it's possible that today I get my phone back. Finally, because two weeks with Samsung Galaxy Advance were miserable.
Actual status on service's page says, that they replaced main board in my phone.
BTW: no Avast Anti Theft ever again.

Phone connected but no internet

Hi everyone,
i am having a SM-G900F (it is t-mobile). It is on stock lollipop LRX21T.G900FXXU1BNL9 with modem and bootloader BOB7 (which i flashed a week ago).
I have problems since the last 2-3 days, my phone is connected to a working WiFi or mobile data and everything seems alright, but it isn't, i don't have any internet access. I have to turn of WiFi or mobile data and turn it on and eventually it starts working again :S
Does anyone has an idea what the problem may cause and how should i fix it? Thanks in advance
EDIT: Also if i take out the battery of my phone and turn it on afterwards, it turns off but with a black screen, and i get a "System fc", and i have to try to turn it on a few times to get it work like it should, but if i turn off the phone without taking out the battery it turns on just fine everytime
First thing Id try is clearing CACHE from Recovery
Did you factory reset after updating to Lollipop from KK? It is needed to get rid of left over bugs / files from KK
*Detection* said:
First thing Id try is clearing CACHE from Recovery
Did you factory reset after updating to Lollipop from KK? It is needed to get rid of left over bugs / files from KK
Click to expand...
Click to collapse
When i bought the phone (used) it already had lollipop on it. I tried clearing cache+dalvik cache but still the same, but didn't tried a factory reset, right now i am downloading a custom rom, will wipe everything and see what happens after that.
Some strange thing that i noticed is, that the internet now won't work for any app escept for viber, on viber it works without problems
Right now i have flashed another ROM with wipe-ing everything before and i have still problems with the internet :S
i don't know what do to now :/
EDIT: Data is working, but wifi connects but no internet :/
EDIT2: I've found out what the problem is, it wasn't my phone, it was some weird virus which changed my routers DNS settings

[Q] Reboots after Lollipop

Verizon Note 3 here, I received the Lollipop ota today and thought no harm in taking it as I was already stuck without root on 4.4.4.
It worked ok for the first couple minutes, then a reboot, then same thing, about 5 minutes and a reboot. Sometimes ~2 minutes, seems using it in any situation made the reboots happen. I did a factory reset thinking that would clear things up. Unfortunately now it is even worse, as it's rebooting anywhere from the first touch to the screen, to about 15 seconds of activity, literally dozens of reboots.
I downloaded the update on my pc and installed via Odin hoping that the ota was just corrupted or some bad luck like that. Nothing changed at all.
It will idle after booting just fine, I just can't do much of anything, every touch of the screen feels like a roll of the dice. Every few reboots or so I can make it to settings maybe but haven't been able to actually change much of anything, not that it would seem to matter here.
I've flashed via Odin twice, cleared the cashe many times, factory reset 3 or 4 times. Am I screwed here? What else to try?
*UPDATE* I flashed back to 4.4.4 with Odin and no more issues. It appears that my device alone is completely incompatible with the new firmware.
I should also note that I tried airplane mode, safe mode, and removing the sd card with no improvements.
After hours of messing with this thing and nearly giving up, not half an hour after I post here for help, I seem to have found a solution, although hopefully not a permanent one. The problem was happening when I would touch the screen, not scrolling ever, but making selections. On a whim I turned off sound and bam, no crashes.
I would still love it if someone had some insight about this problem, or better yet a solution.
I'm not sure yet if it is just the keypress sound that is killing it, or all sounds. I never did have any issues with the stock keyboard clicks now that I think of it, only the menu press sound. In any case it's not every time it made the sound, just half the time or so. Anything anybody could add to this would be appreciated.
*Edit* Not a solution, but it did help.
Well it's not as stable as I'd hoped. More like before the first factory reset now, but still not good at all. The various sounds definitely trigger crashes quickly(menu options, volume pings, mp3 songs from sd card), but regular silenced menu presses do sometimes as well still. Phone also bootloops several times often before it can get booted stable and 100% always crashes immediately if I try to unlock the screen in the first 5-10 seconds after booting up. Not sure if I'll be able to call or text as it's too late to test that atm. I'll update tomorrow, any insight appreciated.
I would say a bad download but I don't remember if ODIN checks MD5 sums (pretty sure it does). I would do a full wipe and reflash the stock image with odin
I am 100% stock not rooted never been rooted 5.0 vzw and I have had a couple of reboots. Never ever had one on this phone before. My old note 3 was rooted but I got this replacement after the root exploits had all been closed.
ehh not all have been closed
What is the root exploit for Verizon Note 3 with 5.0?
recDNA said:
What is the root exploit for Verizon Note 3 with 5.0?
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Click to collapse
None at the current time but CVE-2014-8609 seems like it could be some use
I spoke too soon when I said the phone was usable now. At best 5 minutes of light use as anything seems to crash it now. I did get a fresh image and used it with Odin with exactly the same result which makes me think its my phones hardware or something. Just seems crazy that it was working just fine before the update. The reason I pushed to 4.4.4 and lost root is because my phone suddenly started an issue where it would crash when making or receiving calls. It wasn't caused by any new apps or anything, just out of nowhere. I tried everything then updated as a last resort, carelessly I went to 4.4.4 instead of staying at 4.4.2 and lost chance of root, but it solved the problem I was having. I wonder if the issue is related somehow.
I was able to odin back to 4.4.4 and it's working fine so far, I assumed that you would not be able to revert back like the last ota and just tried it as a nothing to lose last effort. This is very important news to anybody that is having major issues with 5.0. Maybe, just maybe I'll try it again if they make an update patch for reported issues.
But for now, 4.4.4 it is for me.
VZW Note 3 update to Lollipop
I just finished the Lollipop update and my phone is working great for the past 30 minutes. Seems a little slower then usual but have had no issues besides my phone locking up after downloading the update, may have been due to my phone running down to 14%, but after removing the battery for 20 secs and putting it back on, phone came back on, I plugged into charger and started the update. Will post later if I have any issues.
I have been trying unsuccessfully through odin to downgrade but it keeps failing in odin, I downloaded the official firmware from sammobile.
Just curious if u r tried reinstalling newer odin? Try different USB port and cable. At this point maybe even try different pc if u have access to 1

SM-T530 Lollipop update problems

Hey guys,
My wifes Tab 4 recently did the OTA update to Lollipop (5.0.1) and has been having a problem ever since. After being in use for a few minutes after the update it suddenly locked up and rebooted itself. Thought nothing of it at first, but then it did it again, and now randomly reboots all the time, sometimes after only a minute of use. I've tried clearing the cache partition and factory reset, neither gave any improvement. Then i figured maybe the OTA download was the probblem so i flashed it back to Kitkat using Odin and all worked fine again for a few days. I turned off the OTA update checke and she was perfectly happy with it again.......
......until it downloaded the update all over again.
Before allowing it to update again i connected it to the PC and did the update via Kies instead. All seemed to be fine for about 5 minutes and then started rebooting. Again, cleared cache and factory reset. Again no improvement.
Then tried flashing the update via Odin again. Still no improvement.
I'm drawing a blank on this one. I've tried everything I can think of and still not been able to solve this one. The only thing i've been able to figure out so far is that for whatever reason it doesn'T randomly reboot if its connected to the PC via USB...............
Anyone got any ideas how to sort this?? Samsung have offered to take it in for repair and I'Ve been offered a refund from the retailer, but I'd rather avoid those options if possible.
Thanks!
I have the same problem and nobody Knows. I will back to kitkat. let me know if you fixed. sorry for my english im cuban.

N910F stock crash and bootloop after 6.0.1 update

Hello people of the world,
after reading a lot of posts here I still can't fix my phone's issues, so I need to post. Bear with me...
I have an N910F which was entirely stock and functioning without problems. Two days ago I accepted the official update. After that, the phone regularly lost connection to the mobile net, froze, and restarted. It would work for a short while until it froze and restarted again and again. When I tried to use the camera, the live picture was completely distorted. The phone crashed and has then gone into a bootloop.
I pulled the battery, did a recovery start and wiped the cache. No difference. Factory recovery next, no difference.
I have since tried several stock and custom firmwares, always taking care to follow instructions and use the correct bootloaders, modems, etc. TWRP is working.
When I flash a stock firmware, it will go into a bootloop. With any custom ROM, it will crash during startup (logo) and switch off.
Any help would be greatly appreciated!
Protect the eMMC?
So, after more reading I began to suspect that the eMMC had moved on to the valhalla of electronics. Sent my phone to service where my suspicion was confirmed. Luckily, they were able to replace the chip without having to put in a new board.
Is there any way to prevent this kind of failure again, or at least make it less likely?
Yes this is a known issue after latest update you could you install only one application called wakelock so that your phone doesn't reboot and CPU keeps awake
nicholes said:
Yes this is a known issue after latest update you could you install only one application called wakelock so that your phone doesn't reboot and CPU keeps awake
Click to expand...
Click to collapse
Thanks! I had read about that.
Got my phone back from service today, they had flashed stock 5.0.1. After checking that it worked I flashed RR 5.8.4 and installed Wake Lock Powermanager. I searched for a comprehensive tutorial on what the settings do and which to use. Right now I set it to PARTIAL_WAKE_LOCK (4) but I'd like to read more about it. Any tips on that?
tullian said:
Thanks! I had read about that.
Got my phone back from service today, they had flashed stock 5.0.1. After checking that it worked I flashed RR 5.8.4 and installed Wake Lock Powermanager. I searched for a comprehensive tutorial on what the settings do and which to use. Right now I set it to PARTIAL_WAKE_LOCK (4) but I'd like to read more about it. Any tips on that?
Click to expand...
Click to collapse
installing power wakelock and setting up on partial wake lock is enough.if you get trouble in starting your phone remove its battery and put your phone in refrigerator for five min.and try to start your phone.this problem also related and happens after the latest update

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