yashsingh1/xdaforums huggingface dataset:
[LG Optimus 2x] Oasis81:
my experience...

100% of battery yeserday saturday at 01.00...

used 1 hour bt, 1 hour browser, 5-6 call, 5-6 messages...

this morning, at 11, was 23% of battery... total 1d and 8,9 hours... with juice defender... very good...

but...

this morning i've hear a notify sound..

take the phone, was off.

remove and insert the battery, the phone go on, and the battery was on 23% yet.

i don't know why it's go off, it's possible that at XX% of battery, something take the phone off ?
[LG Optimus 2x] withoutwings:
No, that just isn't possible - it would be a coincidence.

Or even if the launcher somehow behaves in a way that makes the problem more likely to show, it is still not the root cause of the issue as that can only lie at a driver, OS or hardware level for it to switch off like it does.
[LG Optimus 2x] pmcguire:
A coincidence maybe, a coincidince that I can repeat over and over again I think not.

Somethings up somewhere. :eek:
[LG Optimus 2x] kencheung2008:
As I mentioned, my phone won't shut off after 100% charged.

But the 4 buttons may be out of control. I think it is overheated.

Could anyone try using their phone a long period with 100% charged?:o:o
[LG Optimus 2x] frittenpiekse:
I don't think so, my 2X notified me at 15% because of low battery. Next notification was at 9 or 10% and finaly at 3%. At 1% there came a notification that phone will shut down.

So if something takes your phone off, i think it's none of LGs features ^^

edit: Had no unwanted reboots yet, Android 2.2.2, rooted, carhome and f-secure deinstalled

Sent from my LG-P990
[LG Optimus 2x] Elf89:
On FrAndroid a dual owner said that after he stopped using lg charger and started charging with a samsung one he has not the problem anymore.
[LG Optimus 2x] Mittaa:
We need others to confirm this ...

Could be a coincidence, but if your in to something this could be very nice because it could explain (and solve) the problem.

A charger is very dump so I doubt it have anything to do with this problem

What about faulty batteries? Have anybody tried to use another battery?
[LG Optimus 2x] sebsal:
I haven't changed anything on the sim free phone i received on Saturday. The phone shuts down while charging every time. It also occasionally just shuts down for no reason

I left it from 10pm till 7am not charging and it only lost 3% of battery, then i plug it in to charge at work, 5 mins later it's shut down and needs the battery removed to reboot.

I really hope this gets fixed as I love the phone but it's pretty useless if it switches off when charging

I have tried 3 different chargers, an HTC, the LG and a cheap one I bought online. Shutdown with them all
[LG Optimus 2x] .:george:.:
Sebsal: maybe try a different rom or baseband to see what happens. I'd do it myself but it doesnt happen to me regurarly...
[LG Optimus 2x] Elf89:
Ok... no charger problem. I have not experienced yet this shut down problem and i have been using my phone for 1 week now. I charged it when it was on only 2 times and no problems (i was scared)...anyway we can't find out this problem's source from lg because the official answer is: return because it's a faulty device. I don't know how many devices had been sold and this issue's spread could be very large or very very small. My advice is: if this is not destroying your own life and for example you have to fight only 1 shutdown per week, maybe you can think about keeping your device; if its very frequent and annoying i think you should return your phone and get a new one from lg. If you want to wait for xda community or Lg itself to find out what problem's cause is...well make your choice!
[LG Optimus 2x] sebsal:
Just trying to help narrow it down. This morning I have been charging whilst listening to music on it and it hasn't shut down. This is the first time its not happened.
[LG Optimus 2x] nold-i-spolen:
Well, i'v decided to return mine, in exchange for a new device.........i just can't (wont!) live with this problem with random reboots...........not on a device with this price tag!

.........that said, it haven't rebooted in 4-5 days now, but have acted strange when i used a no-name USB charger (buttons pressing them self, and scroling back and forth between desktops)

As far as my memory goes, it haven't don any reboot/shutdowns when charging.......ever......'only' at random (when screen was locked)
[LG Optimus 2x] Vertigood:
So you can get a new phone just like that? I must send mine in 3 times for service before I can get a new one :(
[LG Optimus 2x] xmoo:
I had a shutdown 2 mins ago :( It was good for 9 days!
[LG Optimus 2x] nold-i-spolen:
In Denmark, if it breaks down within 10 (or is it 14?) days, they have to give you a new one...........no matter if it's a tablespoon or a 10'00$ computer
[LG Optimus 2x] Vertigood:
It seems that mine freezes totally randomly. Sometimes when charging..not always. Never when using it I think.
[LG Optimus 2x] pmcguire:
I took mine back yesterday, it was bought on Friday afternoon and returned Monday morning. They wanted to send it to be repaired and I politely insisted "No ****** way!" am I having my brand new device ripped open.

New one or money back, I got a new one and fingers crossed it hasn't shut itself down yet (20 hours or so)

The first one shown signs of being **** during it's initial charge.
[LG Optimus 2x] Elf89:
I suggest you to perform a google search. Write something like "freeze standby" and a smartphone manufacturer's name...one of my results is:

http://forums.wireless.att.com/t5/S...IN-STANDBY-REQUIRES-BATTERY-PULL/td-p/1688130

One user had changed his device with a new one and this had the same problem! I think it's just software and happens under particular circumstances that depends on how the user "uses" his phone. Performing this google search maybe you can find topics about other smartphones having the same problem and hopefully in theese topics could be a solution. Moreover, in USA it's coming t-mobile g2x and surely if Lg knows the problem it will fix it! I remember g2x has 2x same hardware.
[LG Optimus 2x] jivemaster:
My wife's 2x has had a random reboot around once per day. Certainly not a common occurrence, but it can be annoying. Her phone is relied upon as the alarm to wake us up to go to work, and fortunately it hasn't done anything funny in that regard.

We have had the device reset on its own both on the charger as well as just sitting on its own idle. This is usually after a longer period of inactivity, however today her phone reset just after her alarm went off. The maximum resets she's had in a day is 2.

It's definitely an OS issue. There cannot be this many people with "faulty" devices. It's not anything new - Nexus S owners had a random reboot problem too (I was lucky enough not to however).

I seriously believe you will see no difference replacing your handset. The reboots will be present on that device too. If it was truly faulty hardware, you would expect it would reset over and over again throughout your day.
[LG Optimus 2x] Elf89:
Exactly. Moreover on modaco forum djmcnz (username) posted this:

http://android.modaco.com/content/lg-optimus-2x-2x-modaco-com/336232/frequent-lockups/

Take a look! In particular see his kernel log's analysis: it seems that system recover itself 60 seconds after pressing the button.
[LG Optimus 2x] pmcguire:
That's how it was with my first 2x, over the course of the weekend I must have pulled the battery about 20 times. It was absolutely unusable, it's replacement has been pretty kind to me so far.
[LG Optimus 2x] RedeemerSK:
Have mine since last friday (1.4. .. that is 5th day now), get shutdown / (once seen) reboot ~ 2 - 3 times a day.

Happened while charging (on lg charger, locked) and also in normal use - while locked (pocket or on the table), during call ... seems absolutely random.

Was also charged by PC and still got crashes afterwards

Regardles of current battery status

Regardles of modules activation (WiFi/GPS).

No sd card inserted (ever), built-in apps there (f-secure enabled), not rooted (at least not by me).

Crashing on all connection types (standard which is 2G I believe, 3G, HSDPA)

Baseband: 1035.21_20110218

Kernel: 2.6.32.9-dirty

LGE Version: LGP990-V10b

(I believe it's CZECH 'revision' distributed in Czech rep. and Slovakia)

Doesn't seem like overheating issue, temps are OK afai can tell. I will try to disable f-secure and see.

I would not focus on it as being a while-charging issue.
[LG Optimus 2x] pulsation:
Hello, I'm the guy who posted about using a samsung charger on frandroid. My phone has been rooted using Super One Click ; Car Home and Wave Secure have been frozen with Titanium Backup, and upgraded the firmware from LGP990-V10a to LGP990-V10b - but it didn't help at this time as I was still using the LG charger.

Here are the characteristics of both chargers:

LG charger: STA-U13EV ; 4.8V ; 1.0A

Samsung charger: ATADU10EBE ; 5.0V ; 0.7A

The Samsung charger delivers less power than the LG one. Still no reboot / shutdown issue since I've begun to use it.

Anyway, the problem first occured about one day after I used the LG charger when I received my phone ; so, it's possible that the "bug" appears some time after it is triggered. Did you remove and put back the battery before testing each charger?

Also, could you tell us what voltage and current are your chargers?

Thank you :)

EDIT: Forget it, my device shut down twice tonight. Gosh. :-(
[LG Optimus 2x] panny518:
Today,I put my 2x under car window， it rebooted twice and the screen freezed. So I think the reason maybe overtheating.

Baseband: 1035.21_20110218

Kernel: 2.6.32.9-dirty

LGE Version: LGP990-V10a
[LG Optimus 2x] RedeemerSK:
It would gr8 if someone, who is able to reproduce the lockup at will / is able to predict lockups (e.g. happens few times in a row), tried to make it happen with some kind of cooling - blowing fan / colling base.

Rest of us can try to heat the damn thing up somehow and watch if it cracks :)
[LG Optimus 2x] wyckson:
Hey There!

Since I switched from my lovely Nexus One to th eLG Speed 2X.. Ive had several reboots.. but it doesnt bother me that much!

Hope that Gingerbread will heal such little software wounds! ;)

Greetzz WyCkson
[LG Optimus 2x] nold-i-spolen:
>jivemaster

You might be right, but i don't think so, alot of the people who are experimenting with modded ROMs (including new kernels/radio/ect) still experience random reboot.........and as far i have understod (that might not be a lot) severel of them have replaced all the software/firmware on the phone........
[LG Optimus 2x] Aslarsen:
My O2X have reboot 5 times now when is in the charger and is NOT Rooted.. :mad:
[LG Optimus 2x] hawk7000:
I see very similar behavior, the phone stutters then freezes and at least sometimes recovers if you have the patience.

One thing that I have noticed that I can't tell if it's related or possibly just odd but intended, but /proc/cpuinfo appears to vary over time!

Normally it shows two processors (0 and 1), but sometimes I have noticed there's only one?! What's up with that?!
[LG Optimus 2x] fry92:
I think is has to do with overheating and hardware stuff because my 2X won't start at all after it shutted down and it was really warm.
[LG Optimus 2x] kolaf:
I'm really looking forward to see whether the fix from Paul at MoDaCo solves some of these problems. I have not experienced the problems myself yet, so I can't really test it, but I'm a bit worried that it will suddenly happen at some point. In that case it would be good if there already was a solution :-)
[LG Optimus 2x] hawk7000:
I'm increasingly suspecting (as many others) that this may be a hardware problem. If that's the case Paul, awersome as he is, can't do much about it.
[LG Optimus 2x] aze2:
1 day with it and no random reboot... (ps: battery made a larger than 1 working day)
[LG Optimus 2x] djmcnz:
Well I'll know, as will others in a few days or so.
[LG Optimus 2x] mich059:
hello,

J have toshiba folio100 tegra2

J had a similar problem the tablet hangs in standby

j ai resolut with SetCPU

j ai rule frequense mini max 608 1000

and since problem resolut

can be tested on optimus 2x

I receive mine soon
[LG Optimus 2x] jivemaster:
I thought all custom roms to some extent use pieces of official firmware/source? Thus it wouldn't be outrageous to believe this was a software issue.

I would also say that more people than what have chimed in here have likely had the issue, but perhaps haven't noticed it, due to being asleep, or the phone being in their pocket or bag. It could reset and they wouldn't know since the phone reboots completely and is back in a 30 second window.

I would mark it down as perhaps radio firmware being the issue. Although there are a couple of radios floating around, they all likely share the same problem, some to a greater extent than others.

I am no expert, but as a layman looking at the posts here, I can't see how this many people could have hardware faulty phones. People exchanging their phones have found the reboots are there too. And the symptoms seem too similar to be a hardware fault, unless of course a bad batch of the same hardware component is at fault (eg; cpu, memory).

Will be interesting to see if the G2x has the exact same issues or not, and if it doesn't, maybe we can use their rom?
[LG Optimus 2x] hawk7000:
That's an interesting idea, especially as PatrikS showed that it was cpufreq-dvfsd that went wild... Possibly tweaking the range (maybe not as aggressively as setting the lower bound to 600) could change the conditions enough for this not to happen. Definitely worth a shot.
[LG Optimus 2x] PlayTimou:
Most Optimus 2X users of the french community are never been affected by this issue (80% at this moment).

forum.frandroid.com/topic/51005-probleme-de-reboot-sondage/

Never been affected myself.
[LG Optimus 2x] Mittaa:
Its very hard to know how many people are affected ...

People who experience problems like this tend to seek answers in forums like XDA, and a lot of people with good healthy phones does not.

If 80% of the french community have no problem, then the majority of all Optimus 2x might be OK ... (one guess is as good as another, so why say 99%)

This could mean that shutdowns/reboots are due to a hardware fault :eek:
[LG Optimus 2x] sebsal:
I set CPU to Max:1000MHz Min:312MHz and had my first successful charge without lock up.

May be a coincidence, I'll try charging overnight tonight
[LG Optimus 2x] nold-i-spolen:
Well, sounds like you are more of an expert than me at least.

I don't buy that they don't notice it cuz it is back up in 30 secondt, most people would notice that they have to press the PIN-code when they unlock the screen?.......and the LG booting sound in the pocket (that's how i noticed).

And as you say your self, hardware is produced in batches, unlike software........in my eyes, that would explain why some people are experiencing the problem, and others not (when running the same software/firmware)

And if it was software, all 2x phones in the world would experience this random/charghing-reboots right?

Well, my phone is sent back, so i expect to get a new one within 4-5 working days.......hopefully it won't have reboot problems!
[LG Optimus 2x] RedeemerSK:
Just had one lockup ... only-removing-battery-helps style, after which os booted to let me know I have to charge the battery, showing it's at 1%. Rebooting fixed that. Kinda strange.
[LG Optimus 2x] Brmm_:
I have the same problem

Sometimes when I get the phone out of my pocket and try to "unsleep" it or whatever you call it, it just stays black screen.

Last time it was quite hot too, nothing seems to help it just stays black (so its not turned off, because then it would just boot up thinking I want to turn it on)

Taking out battery and putting it back in is the only thing that helps.

Its rooted 2.2.2 but thats all, I haven't done anything other non-catholic with it.

Its quite annoying for sure.
[LG Optimus 2x] djmcnz:
Are you sure you're not using a protective sheath? ;)
[LG Optimus 2x] Brmm_:
Actually this is my first android, even my first smartphone. Other then running superOneClick out of curiousity, I haven't touched it in any way LG would disapprove.

I'm not even using the benefits of beeing rooted. I'm waiting for that when things get more stable for the o2x.

It just seems like the screen doesn't respond anymore, I just hope it's not a hardware issue.
[LG Optimus 2x] durzagott:
I have the exact same issue.

I just got mine today and have had it happen twice so far. Both times it had been in my pocket.

Not rooted it or anything as it. Fresh out of the box as LG has sold it to me.
[LG Optimus 2x] .:george:.:
Ouu it just happened again, first time since saturday... It was just laying on the table when the buttons lid up and then it turned off. Had to pull the battery out. This really pisses me off :/ I'll try to flash different rom on weekend to see if that helps
[LG Optimus 2x] hawk7000:
Unfortunately it doesn't relate to the more severe issue discussed in this thread...
[LG Optimus 2x] .:george:.:
I noticed something strange... An hour ago when I had a sudden reboot it seems that phone was off the battery for a while, what do you think about this picture? It drops voltage on zero (about at the time when the phone turned off).. Any conclusions?
[LG Optimus 2x] Brmm_:
Apparently we have two different issues here.

Some people have trouble with the device rebooting on a random moment, which I don't have so far (fingers crossed).

And other people seem to have trouble that the screen stays black on wakeup and a battery reset is needed to make it run again because it won't even boot.
[LG Optimus 2x] djmcnz:
Unfortunately I thing you've recorded a symptom rather than a cause. This is exactly the type of log we would expect after a standby reboot I imagine.
[LG Optimus 2x] djmcnz:
And perhaps a cross-over of the two. The second situation (black screen, no response) can actually result in the first (a reboot).

So, I'd only count reports in the first group if they were a verifiable spontaneous reboot (e.g. using phone and it reboots)... rather than just an observed reboot (e.g. pin lock screen is there on wake).
[LG Optimus 2x] Glutues Maximus:
I'm still having problems with my phone. I think it's because of overheating since everytime I have a phonecall longer than 10 minutes or when I've been using it for a longer period of time the phone becomes really hot and screen freezes and all I can do is pull the battery and restart. About to throw this POS out the window :(
[LG Optimus 2x] jivemaster:
My kernel here is 2.6.32.9-dirty ... What the hell is that?

As far as the phone goes, we've witnessed no overheating. Holding the phone I haven't felt a temperature I'd consider hot.

We've tried a factory reset and removed the 32gb sd card we had inside it, so we'll see how that goes.

It's odd we've (my wife and I) have only ever had problems while the phone is idle. Maybe the voltages when sleeping are too low for the phone to stay alive.
[LG Optimus 2x] bryant_16:
I'm having random restarts of the phone out of a sudden. Any workarounds to it?
[LG Optimus 2x] jivemaster:
None yet. You can try getting a replacement device but it seems to be happening to everyone eventually in one way or another.
[LG Optimus 2x] durzagott:
I have definitely got both issues being reported here. Yesterday I had the black screen problem after it had been in my pocket.

This morning I woke up and my phone had shut itself off. The alarm did not go off either. Luckily, thanks to this thread, I also set my old Nokia phone as a backup just in case.

When I went to bed I plugged the phone in (battery at 34%) and left it on. Come the morning it was off and I had to press and hold the power button to turn it on again.

This is totally unacceptable and I am now wondering if I should return the phone. I have another 6 days according to Expansys's return policy. If I thought I just got a dud then I would return it today, but from what others have said here it seems that a replacement won't be any better!
[LG Optimus 2x] kostasalfa:
Guys i hope this is a software issue..if it is hardware, its so widespread so i dont see any solution for anyone than wait months for an updated production unit..money back in these cases are extremely rare..

I got all problems since day one. Maybe better .. hour one! it came with 15 charge so i plug it right in!! I dont have 3reboots in a day. More like 300!!! cant talk in phone! worst thing noone still has a clue about this, no xda dev is working on it, lg still never heard of that (thats kinda our fault here) and no light in end of the tunel!!

After years of htc phone hackings and always testing rom related problems, i bought this phone to leave it stock and relax !! Guess its fate!!

from what i ve seen so far must be battery related..problems during and shortly after charge. If you leave it settle after the first..five(!) Reboots the phone wont have a problem till charge again. If not on heavy multitasking use..

Rom 2.2.2

version 10.b

Band thevone ending in 23..

Hope as more users accuretly reporting their experiences we will track it somehow down.

Thing is many users not reporting problems might actually have it allready and not reslising the restart!! highly possible!!
[LG Optimus 2x] rockerduck:
I'm suffering the reboot issue in the last 2/3 days.

I bought this phone 12 days ago and for the first 10 days everything worked flawlessly...

The weather is hotter these days (about 25°C) ... I hope this is not an overheating problem...
[LG Optimus 2x] bedevil99:
I too have had lock ups (a battery pull out was necessary) while charging and twice after playing agry birds for about 20min since day one. I also think the phone gets way too hot during continuous use (say 20min). I will have it replaced soon however and can only hope to get a working device (as I know a mate hasn't got any issues what so ever). Just for the record, I also tried the 12-hour-phone-switched-off charge.

The phone is stock

Baseband: 1035.21_20110218

Kernel: 2.6.32.9-dirty

LGE Version LGP990-V10b

PS: Have you noticed when using the stock home app, the clock on the lock screen updates itself only after you wake up the phone i.e. it jumps several minutes. Probably it has nothing to do with it but I thought I might mention it anyway
[LG Optimus 2x] withoutwings:
The 'dirty' part means that the linux kernel has some closed-source modules included in it by LG. (I think.)

Sent from my LG-P990
[LG Optimus 2x] Glutues Maximus:
I changed my voltage to -50mV from the default values, seems to be working. No reboots, freezes and everything is working fine ...so far I might add. Will keep you updated.
[LG Optimus 2x] :
I've received my 2X a couple of days ago and I've had the first reboot 10m ago! Was updating some apk and started Angry Birds Rio and the phone rebooted!

The phone is with V10b firmware and it's rooted and updated with baseband 1035.21_20110315 since the first day. This morning I've installed clockwork and the dexopt mod paul made.

Mike
[LG Optimus 2x] sebsal:
I've just sent mine back. A phone that shuts down while charging is no good to me

Hopefully the replacement will be better but i dont hold out much hope
[LG Optimus 2x] rockerduck:
Where is this setting?

thanks Maximus
[LG Optimus 2x] Glutues Maximus:
See this thread: http://xdaforums.com/showthread.php?t=1020730

Still working fine with heavy use while charging.
[LG Optimus 2x] sebsal:
If I was using mine while charging, like listening to music or browsing, it was fine.

The problem was charging without using the phone. It would shut off every single time and require the battery to be removed to re-boot
[LG Optimus 2x] jivemaster:
Same here. Ours here is fine through normal use. As soon as it's left on its own for some time, it reboots. It only happens every 12 hours or so, but it happens.
[LG Optimus 2x] pulsation:
Thanks, trying it right now. I guess you applied -50mV to 1000MHz and all frequencies below?
[LG Optimus 2x] Glutues Maximus:
I installed the app, installed the zip using ClockworkMod and ran the app, rebooted and then turned everything down by 50mV. Still working like a charm wich makes me think it's something with the battery.
[LG Optimus 2x] jivemaster:
So faulty batteries may be at fault?