Database Users

Anybody else getting random reboots?

So this started happening only 2 days after getting my G2. Basically my phone reboots randomly whenever I unlock the lock screen. It doesn't happen every time, but it happens often enough that it really bugs me and I'm considering factory reset, but I dont want to lose my info and have the reboots still continue

alexdagreat said:
So this started happening only 2 days after getting my G2. Basically my phone reboots randomly whenever I unlock the lock screen. It doesn't happen every time, but it happens often enough that it really bugs me and I'm considering factory reset, but I dont want to lose my info and have the reboots still continue
Click to expand...
Click to collapse
Not a single one in 10 days. Are you rooted?

I am too
alexdagreat said:
So this started happening only 2 days after getting my G2. Basically my phone reboots randomly whenever I unlock the lock screen. It doesn't happen every time, but it happens often enough that it really bugs me and I'm considering factory reset, but I dont want to lose my info and have the reboots still continue
Click to expand...
Click to collapse
**Yes I am also getting random reboots when unlocking the screen. At first I thought it had to do with the lock screen type I used or the lock screen pattern but it is still happening now that I'm using a pin to unlock my phone. I am completely stock and got the phone the day it came out.
The reboot happened a couple times within a few minutes and seems very random upon unlocking the screen. If others are experiencing this I highly suggest posting here.
I came from the LG G2X and that phone had a similar issue involving random reboots but was definitely fixed by LG eventually. My Asus Transformer Prime had a random reboot issue as well and eventually fixed.

reaton33 said:
**Yes I am also getting random reboots when unlocking the screen. At first I thought it had to do with the lock screen type I used or the lock screen pattern but it is still happening now that I'm using a pin to unlock my phone. I am completely stock and got the phone the day it came out.
The reboot happened a couple times within a few minutes and seems very random upon unlocking the screen. If others are experiencing this I highly suggest posting here.
I came from the LG G2X and that phone had a similar issue involving random reboots but was definitely fixed by LG eventually. My Asus Transformer Prime had a random reboot issue as well and eventually fixed.
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Got my G2 5 days ago and have had at least 3 random reboots or shut off reboots the the last three days.
Today 4 times reboot when unlocking with Code unlock.
Actually considering returning the product.

did you try uninstalling some of the stuff you installed? One by one?
Did you try factory reset?
Stock everything?

bachera said:
did you try uninstalling some of the stuff you installed? One by one?
Did you try factory reset?
Stock everything?
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Click to collapse
I don't really have anything crazy intensive on my phone but it's worth a shot.
As of today I have had several reboots when unlocking the screen. This occurs whether I have the lock screen active or not.
I am considering returning the phone too if this keeps happening. I'm absolutely sick and tired of defects/bugs (whatever you want to call them) like these plaguing my devices.

all it takes is bad install of apps, wacked permissions and what have you.
Eliminate all software possibilities before you blame your phone m8 .

nope completely stock

this just started happening to me today, no idea why... I haven't installed any new apps lately. is it a problem with my phone? you think swapping it out will fix the problem?

alexdagreat said:
nope completely stock
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Click to collapse
lol factory reset and wait few hours, dont restore backups and stuff, that eliminates about everything!
whats left, bad rom, but at that point warrantee

I have stock lg g2 doing same thing. A hard reset didn't work and I have only basic apps that came on phone. However I have been able to turn off lock screen and so far no reboots (yet). T-Mobile has given me a runaround about getting it replaced. Still inside my buyers remorse,I have finally gotten a supervisor to give me a new phone. Tmobile supervisor confirmed lg g2 having a lot of issues. So that said I'm saying goodbye to lg g2, going with something else. Tmobile finally took care of me after being on hold for 5hrs and talking to countless people! Lg g2 has issues but T-Mobile has major issues and that's being really polite!!!
Sent from my LG-D801 using xda app-developers app

i exchanged it
i went in to tmobile last night to exchange my phone. it took two hours because of a some $1.12 price difference but they eventually got it to work with some trickery. i'm a very patient person anyway.
literally while i was typing this response i was going to say i didn't have the random reboot but JUST F'ING NOW it happened again. I'm immediately doing a factory reset and UNFORTUNATELY and using the phone without instalilng a damn thing. hopefully i can get some idea of what the problem is before my 14 day return window is up or else this phone is going back as much as i hate to say it.

I had a similar problem with my phone while trying to unlock it. Once it started rebooting, it would go into an almost endless cycle of reboots. Sometimes as much as 20 reboots in a row.
I had tmobile exchange the phone for me. No issues since with the replacement. I do definitely think there is a bad batch of G2s out there.

mikea3000 said:
I had a similar problem with my phone while trying to unlock it. Once it started rebooting, it would go into an almost endless cycle of reboots. Sometimes as much as 20 reboots in a row.
I had tmobile exchange the phone for me. No issues since with the replacement. I do definitely think there is a bad batch of G2s out there.
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Let me start off by saying I'm a jeweler and am used to looking for stress cracks developing inside of stones, well I found this issue with 2 LG G2s.
I am on my third G2, not because of rebooting but because the sapphire glass that covers the camera starts developing micro cracks running across the lense, has happened twice now, I had it in one of those windowed cases, they suck don't bother, no protection. Anyways, had this issue with the transformer tf201, microcracks develop along edge, then bang, giant crack from corner to corner, no mis use needed, was just bad design. These microcracks are all internal, no breaking the surface.
The way you find them is get light to reflect off of the glass covering the camera, now slowly roll the phone side to side and back and forth, now look for lines reflecting light back at you. If you see those exchange the phone, they will eventually grow, like a windshield crack, and feacture ruining the camera optics.
Hope no one else has this issue, oh and this third LG G2 came with the Isis sim in the box, unlike my first 2, I'm in chicago.

VZW
Clean Rom 1.0. No problems or reboots. I have had the phone for about 2 weeks.

Picked up the phone day 1, no issues at all. Fantastic device!

The recent update to gmail was the culprit for me. I started getting the reboots immediately after the update. I uninstalled updates in app settings this morning and haven't gotten a reboot in 12 hours. Maybe it's an issue with the gmail lockscreeen widget after the update? I'm on the verizon g2.

same rebooting issue here for my TMO version. thought it was my lockscreen widget from nils, but then it consisted after i took it off, and still consisted after i factory reset it. so I exchanged the device and got a new one.. same day I got it, it started rebooting again. thinking about just returning but its such a good phone, sad if it has to come down to it.

Simple as this. Random 'reboots are bad. If it's uprooted, exchange it. If it's rooted, use a diff Rom or figure out what you did. One random reboot is enough for me to go ape **** lol. My gnexus did it once and I was back at the store that day.
Sent from my VS980 4G using xda app-developers app

update
quick update. since exchanging the G2 for another G2 I have not had any random reboots. I did take into account the advice from a previous post on this topic that his gmail update may been the catalyst for the reboots. I waited to update gmail until a few minutes ago so we'll see how it goes.

frustrating problem where the phone is lagging/restarting with sim card inserted.

Let me start off by saying that this issue started back at the beginning of Dec 2015. I've had the phone since winter 2014, and for a year, it was the most amazing phone ever. However, one day as mentioned beginning in dec 2015, the phone began running extremely slow and was restarting frequently. I assumed it was a just a OS issue, and so I did a system factory reset. However, the problem persisted even after a reset and cache clearing. So I called up Samsung, and then told me to send in the phone to get looked at. Since then...I have sent in the phone 4 times to get looked and each time, Samsung has said there is no issue pretty much. I've tried phone with different new batteries, and the same problem still occurs.
The oddest thing that I've noticed with this issue is the phone runs smoothly and flawlessly, when there is no SIM card inserted. But, as soon as I insert my At&T sim card into the phone, all the lagging/restarting issues occur. It's been a frustrating 3 months trying to deal with issue, and i'm at the point where i'm throwing in the towel and calling it quits on trying to fix this phone that costed me so much money.
At&t reps were clueless when I brought this issue to them today, and told me to call samsung....even though samsung says at this point it's a network provider issue and that I bring it to At&t. I've googled this issue and couldn't find anything on this. Posting on here is my last ditch effort, and if anyone knows anything that can, I would very much appreciate it. If not, i'll prob buy a new phone out of pocket.

having the same issue since 2 days after sim change
Hi, I recently switched my carrier and inserted a new sim. Phone worked fine initially but after 1 day it has started working extremely slow. It sometimes does not wake up from sleep even when i press the home button repeatedly. Sometimes it hangs and then gets into bootloop. I factory reset my phone yesterday and the issue resolved initially but when i installed and restored my watsapp messages, the issues started all over again. Now i am thinking of flashing my phone with a different ROM and see if it helps.

doctor geek said:
Hi, I recently switched my carrier and inserted a new sim. Phone worked fine initially but after 1 day it has started working extremely slow. It sometimes does not wake up from sleep even when i press the home button repeatedly. Sometimes it hangs and then gets into bootloop. I factory reset my phone yesterday and the issue resolved initially but when i installed and restored my watsapp messages, the issues started all over again. Now i am thinking of flashing my phone with a different ROM and see if it helps.
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Click to collapse
thanks dr. geek, keep me posted on how that goes.

Problem persisting even after flashing a new rom
I flashed a 5.1.1 australian ROM downloaded via sammobile. but the phone started hanging again this morning. I am beginning to wonder if its an hardware problem.

I have the same problem ...
Have had my Note 4 since November 2014. And it havebeen working flawless, running rooted and everything Until yesterday when i was just casually using my phone and it started to lag and restart, no difference whatever rom. So i tried for a whole day to get it into official firmware with alot of error messages in the progress about the internal memory etc, i ended up repartitioning, and modifying my PIT-file until i finally got it working. And the same issues did still exist. Now the thing that seemed to work for me was to change battery, now it seems to run again without lagging, or anything. Tho it wont restart properly without restarting twice by itself..

filosofenkalle said:
I have the same problem ...
Have had my Note 4 since November 2014. And it havebeen working flawless, running rooted and everything Until yesterday when i was just casually using my phone and it started to lag and restart, no difference whatever rom. So i tried for a whole day to get it into official firmware with alot of error messages in the progress about the internal memory etc, i ended up repartitioning, and modifying my PIT-file until i finally got it working. And the same issues did still exist. Now the thing that seemed to work for me was to change battery, now it seems to run again without lagging, or anything. Tho it wont restart properly without restarting twice by itself..
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Hi, i doubt it to be a battery issue. Anyways, i would really appreciate if u post an update again after 1-2 days. i just want to confirm it before spending money on a new battery.

doctor geek said:
Hi, i doubt it to be a battery issue. Anyways, i would really appreciate if u post an update again after 1-2 days. i just want to confirm it before spending money on a new battery.
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Click to collapse
Hey yeah, well. you're right. I only got up to 3 hour use before same problems started to occur again. I have officially given up now tho, it must be a hardware failure. Im going to send it in.

its the EMMC chip bug
filosofenkalle said:
Hey yeah, well. you're right. I only got up to 3 hour use before same problems started to occur again. I have officially given up now tho, it must be a hardware failure. Im going to send it in.
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Click to collapse
I am also getting a black screen sometimes before booting which says "ddi EMMC error". I think my nand chip is corrupted. Is any one of u getting the similar error?? Also flashing my phone with a PIT file can solve the issue ??

doctor geek said:
I am also getting a black screen sometimes before booting which says "ddi EMMC error". I think my nand chip is corrupted. Is any one of u getting the similar error?? Also flashing my phone with a PIT file can solve the issue ??
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Click to collapse
Im getting the same, i guess you could try it. But from what ive read it seems like the only fix is for samsung to exchange your phone, or change motherboard.

Good luck with samsung fixing it. I sent it in 4 times and each they responded "no problem found". I gave up and bought a moto e.

Flashed again with PIT+Re-partition
nguyen3706 said:
Good luck with samsung fixing it. I sent it in 4 times and each they responded "no problem found". I gave up and bought a moto e.
Click to expand...
Click to collapse
Yesterday i flashed my phone again, this time with a PIT file and repartitioning checked. Eveything went fine but the phone went into recovery booting bootoop initially but started on its own after a few bootloops. It worked fine for sometime, but when i entered my samsung account and it started to restore my msgs, call logs and apps, after 1 hour or so it started to freeze all over again. I am starting to think that some app could be a reason too. Now i will flash again and keep using it without restoring my old phone and installing only a few essential apps and see what happens
---------- Post added at 03:28 AM ---------- Previous post was at 03:26 AM ----------
I also installed an app from the play store EMMC brickbug check but it says that my NAND chip is sane (fine i guess)

Same happens to to my note 4 snapdragon phe.
Any updates ? Did anyone got it back fixed from Samsung?
Good luck

My T-mobile Note 4 started experiencing this same issue last week. Is this a coincidence or something more? For everyone with the same issue, has your phone been slightly warmer at the top?
I purchased a new Anker battery to see if that will resolve the issue and will test it when it comes. But I think the emmc is starting to go bad? It seems to work fine without a SIM card inserted also.

I just received from samsung that they need to replace the motherboard, and of course the warranty isnt covering up since i rooted it. And they're going to want 540 USD from me to do that. Sigh, last phone i bought from samsung for sure.

Random restarts after updated to nougat :/

So i updated a few days ago to nougat, everyhing went fine now as of yesterday my edge suddenly random reboots for no reason? i dont get it.. i have tryied clear cache from partition and even did a factory reset still nothing.... what can the problem be ? it never restarted before the update so clearly something messed up my phone after that but how..... i hate this any fix for this?

I don't have such experience and seems initially you did not have either.
Do you use stock/unrooted?

Do you use whatsapp gifs?

yes im stock no root or dont plan to either.. using whatsapp but no gifs why ?? this really sux

I'm having this problem too. 2 random reboots last week. Today it rebooted and because I had secure startup enabled it got stuck in the "enter pin" screen, so the alarm didn't work and arrived 2hs. late to work.

Hello,
Same for me

went back to 6.0.1 and the problem is still there.. OMG i give up on samsung god dammit... worst luck ever my old S5 was better then this

Hi,
I have experienced this on my new S7 Edge today, 2 random reboots. Did any of you manage to get to the bottom of this probem?
Thanks

Hello I have a Galaxy S7 and since the update to Android Nougat 7.0, my phone restarts randomly, it can stay an entire week without restart and it can also restart 2 days in a row. It's totally random. I have reset to the factory settings and I have reinstalled only the most important applications (facebook messenger, viber, yahoo mail) but unfortunately about ten days after reset, the problem has reappeared. What could be the cause of this problem? For info, the firmware version installed on my phone is: G930FXXU1DQBO. Also, I saw on SamMobile that the countries that received the update later, had a new version. Could the problem come from that? Is this a bug in the firmware installed on my Galaxy S7. Thank you in advance for your help.

GeekTN said:
Hello I have a Galaxy S7 and since the update to Android Nougat 7.0, my phone restarts randomly, it can stay an entire week without restart and it can also restart 2 days in a row. It's totally random. I have reset to the factory settings and I have reinstalled only the most important applications (facebook messenger, viber, yahoo mail) but unfortunately about ten days after reset, the problem has reappeared. What could be the cause of this problem? For info, the firmware version installed on my phone is: G930FXXU1DQBO. Also, I saw on SamMobile that the countries that received the update later, had a new version. Could the problem come from that? Is this a bug in the firmware installed on my Galaxy S7. Thank you in advance for your help.
Click to expand...
Click to collapse
Had that issue with my Note edge after updating FW to stock 6.01, many threads in Note edge forum report the same. Samsung gave a s..,,,t , never fixed it.

Maybe Whatsapp? Or SIM card?
I had the same issue, but worse. Between 15 and 30 random reboots a day, during calls, during emails, during sleep. Often (and every morning) I picked up the phone and it said it had a reboot, therefore no finger print wakeup etc. After a ton of googling, Wipe Cache, Safe Mode and all that (changed nothing) I ordered a new SD card. Changed nothing. Then I did a factory reset, re-installed all apps via Google backup. Changed nothing. Meanwhile Samsung customer support tells me to send in the phone, may take a few weeks - haha. So I did another factory reset, but then only re-installed the most necessary apps (although I don't want to have a flagship phone and not install whatever i want). Changed nothing. Still 15-30 reboots a day. Plus a seriously bad battery life, maybe because of the reboots, or nougat, or both. Enough for me, and all the more reason not to buy S8. I ordered a Mate9Pro, which is not as gorgeous as the S8, but at least big, 6GB RAM, fastest chip around and has a 4000mAH battery. However, after re-installing all my apps on Mate9Pro and putting my SIM in there (runs smoothly), Whatsapp (without the SIM) kept popping up on the S7. So I uninstalled. While I was at it, I also uninstalled airline apps (Air Berlin, easyjet, Lufthansa, Miles&More - don't ask why). Since then, no reboot on the S7 (8 hours so far, but that's the longest period since the Nougat update). So the maximum damage has been done (had to buy a new phone), and now the old phone works just fine. Maybe it was Whatsapp, or another app causing it to fail? Or the SIM card? I have no clue but maybe someone with some knowledge can make sense of it?

I was having the same problem after nougat update. I noticed that after the reboot I would have notifications from specific apps like airasia app , I shut off notifications from almost all except a few important apps. Reboot no. has drastically reduced since then.

Bootlooping start on V20 H918 now?

I brought couple used T-Mobile V20 which is H918 but both seems start having the boot looping issues that would restart itself 5-6 times a day with normal use, some times even just listening songs with bluetooth at work would restart 2 times in 4 hours... I can't get replacement from T-Mobile since I didn't buy from their store and don't have receipt for LG to warranty although it still made within a year

Random reboots & forced close should not be confused with the dreaded G4 & v10 bootloop issue.
Bootloop suggests you can't fully boot your phone, not that it reboots after some use.
God knows what they've been through if you've bought them as used..
I can only suggest a factory reset & reinstalling a factory stock rom.

Prowler_gr said:
Random reboots & forced close should not be confused with the dreaded G4 & v10 bootloop issue.
Bootloop suggests you can't fully boot your phone, not that it reboots after some use.
God knows what they've been through if you've bought them as used..
I can only suggest a factory reset & reinstalling a factory stock rom.
Click to expand...
Click to collapse
I did factory reset and restore data with LG backup and they are all fully stock not rooted... but both doing the same things.

Erick Cho said:
I brought couple used T-Mobile V20 which is H918 but both seems start having the boot looping issues that would restart itself 5-6 times a day with normal use, some times even just listening songs with bluetooth at work would restart 2 times in 4 hours... I can't get replacement from T-Mobile since I didn't buy from their store and don't have receipt for LG to warranty although it still made within a year
Click to expand...
Click to collapse
Actually my first lg v20 (which i bought on october 19 and arrived on October 21) came defective and that is what was causing the random reboots and even the sim card showing no service and an x on the icon. Then after they replaced it for me i never had any random reboots that wasnt intentionally caused by new mod kernels or other mods or roms. So..... Chances are about 50% your devices had the same issue as mine but they didnt mention it on the sale description.

I would try force updating to the H19810p update. I had this issue 24 hours ago, and spent a mass majority of the day fixing it. This resolved any issues I had, fixed the boot loop, got rid of the Device is Corrupt, and put me on thw latest firmware.

Samsung S8+ keeps freezing then restarting [ possible reason ]

Hi all I have a Samsung s8+ on Vodafone UK and have got the same problem as many people out here device freezes and then reboots out of nowhere after reading endless comments on it and not getting anywhere I noticed that my phone freezes and reboots 9 out of 10 times when I'm outside and it's cold now I was wondering if anyone else has found that when there outside and have their device out it does this? Quick example I walked to the gym today which is a 10 min walk and on the way there it did it once then on my way back it did it twice now whilst being at the gym it didn't do it and being back home now for about 3 hours it hasn't happened once. Imo it's the hardware but I want to know if anyone else experienced it in this way or maybe this will trigger a lightbulb moment and we get a solution.
Thanks guys.
Quick edit: I have tried the hard reset, the factory reset, smart switch, got the latest update and device is 3 months old

Hmdutch said:
Hi all I have a Samsung s8+ on Vodafone UK and have got the same problem as many people out here device freezes and then reboots out of nowhere after reading endless comments on it and not getting anywhere I noticed that my phone freezes and reboots 9 out of 10 times when I'm outside and it's cold now I was wondering if anyone else has found that when there outside and have their device out it does this? Quick example I walked to the gym today which is a 10 min walk and on the way there it did it once then on my way back it did it twice now whilst being at the gym it didn't do it and being back home now for about 3 hours it hasn't happened once. Imo it's the hardware but I want to know if anyone else experienced it in this way or maybe this will trigger a lightbulb moment and we get a solution.
Thanks guys.
Quick edit: I have tried the hard reset, the factory reset, smart switch, got the latest update and device is 3 months old
Click to expand...
Click to collapse
Why do you think it's the hardware?
Flash a new stock rom using Odin. Get the latest version for your device and carrier.

partcyborg said:
Why do you think it's the hardware?
Flash a new stock rom using Odin. Get the latest version for your device and carrier.
Click to expand...
Click to collapse
Because it only seems to happen outside I went from last nights post to this morning without reboot but as soon as I stepped outside within 10 min it happened then I tried replying to this post and it happened again so yeah done this reply twice. I'm currently inside and it hasn't happened. I don't know if it's the battery is being sensitive to temperature changes after the exploding ones but I don't seem to have this problem indoors I was outside for roughly 25 min and it rebooted twice consistent with other times now I have read a comment of a guy describing the same problem and he had his motherboard replaced and the phone seemed to be working fine after that but there has not been an update after that so I'm not sure if that was a long term solution.