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[Q] G2X Shutdown issue

my g2x shut down and wont turn on..i charged it over night... it took like 3 hours to get to 99 percent...it took a while....i left it over night and this morning it was off and wouldnt come back on...i called tmobile and they told me to try to get a extra battery..but no one has em yet..and they cant exchange it cuz i bought it off of craigslist...anybody know anything that will be helpful?

Try holding down the volume down and power button at the same time beware it will wipe the device but may get it to boot not sure
Sent from my LG-P999 using XDA App

Had the same problem. Try pulling the battery out insert it back in. I had them ship me a new replacement.
Sent from my LG-P999 using XDA App

promptly go back to the person on craigslist and slap them in the face. I hope you @ least got a deal on the phone. Hopefully you shouldnt have to wait to long for replacement batteries to be made by some manufacturer. good luck

gconcepts said:
Had the same problem. Try pulling the battery out insert it back in. I had them ship me a new replacement.
Sent from my LG-P999 using XDA App
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This works for me also. Happened about 4 times today.
Sent from my LG-P999 using XDA App

shovelhead83 said:
This works for me also. Happened about 4 times today.
Sent from my LG-P999 using XDA App
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It happened to me 3 times today, my phone shuts down and won't turn back on until I take it out and put it back in, it's because it gets overheated and the phone shuts down itselfs, it must be a defective battery that makes the phone really hot when it was in my pocket.I went home and replace it with another battery (from another G2x i was about to send back to Tmobile because of bad light bleeding from the top corners), and everything works perfectly. I start to love my phone a little better now.

That same weird thing happened to me one morning I was scared but all I did was took my battery out let it cool out for a while because I noticed my device was hot then it said system check under the LG logo then booted up
Sent from my LG-P999 using XDA App

djsteez said:
my g2x shut down and wont turn on..i charged it over night... it took like 3 hours to get to 99 percent...it took a while....i left it over night and this morning it was off and wouldnt come back on...i called tmobile and they told me to try to get a extra battery..but no one has em yet..and they cant exchange it cuz i bought it off of craigslist...anybody know anything that will be helpful?
Click to expand...
Click to collapse
its a shame you didn't just pull the battery. its not a hardware issue and this android build isn't the first to do that.. there are some issues with this build of android its obvious.. give some time more builds will come including cm7 which you will find rock solid soon enough.

I had two g2xs with the problem, and I'm pretty sure it's a hardware issue.
When I charged it, I noticed the back got really hot.
On that suspicion, I went to a different TMobile store and got one from a different batch, by looking at the manufacture date on the back of the box.
No more problems.
R
p.s. I'm pretty sure a software "fix" will involve underclocking/undervoltaging. Lame.

Probable fix
Hello,
So we’ve been working on this issue for quite a while. And have come up with a semi-practical solution. This might interest some of you, who have this issue.
Issue:
Both I and my friend opted out to purchase the new and wonderful LG g2x phone. After receiving the phones we came against a very similar issue. The cellphone unit would shutdown/turnoff during the charge [car or wall]. The shutdown would occur around 95% of battery charge. In addition the phone would get hot. After the shutdown to start the phone would require pulling the battery out of the unit and reconnecting it again, otherwise known as: Perform a battery pull.
Trials:
So after doing some research and funding out that LG is literally doing nothing about this issue, [great testament to their corporate integrity] we decided to take on this issue. At first we also believed that it is, indeed, the battery that gets heated and goes offline after reaching some temperature. After recognizing the poor quality of the battery, I’ve decided to purchase a better quality one online. No surprise really the phone would still lockup at 95% charge.
At this point I took it upon myself to resolve this issue with what resources I have available. I am an MIT student and have a high tech engineering lab available at my disposal, in addition to some free time with a winter break and all. Anyways, I pulled the phone apart and this is what I’ve discovered…
Discovery:
So inside the phone right next to the 4 connecting diodes that connect the battery to the cellphone unit are 2 semis [semiconductor hubs] that are responsible for providing battery charge information to the cellphones cpu [central processing unit] in addition theres also a line running to those semis that probably carries some sort of information [current] that the semis are also responsible for.
The first approach that we took was through the hardware, and killed that additional line and allowed the semis to only be responsible for the battery charge. The results were somewhat positive. Although the phone would freeze and glitch like crazy it would not shutdown with a subsequent necessity of pulling the battery.
We also noticed that it was the two semis that would get hot actually and lockup shutting the phone up and requiring a battery pull. The reason you need to pull the battery is because the iodes would overheat and completely glitch out, also even though the phone was now powered off there still was a current running between the battery and the phone. Only the battery pull would allow the diodes to drop the charge and reset to the position for the phone to be functional again and able to power up.
Solution:
So the idea was to find a software solution, which would free up this one line running into semis and allow them only to carry the responsibility for reporting the battery charge to the cpu. Believe it or not the first thing that came to my mind was the solution.
The app called Advance Task Killer (ATK) [available free on the market] proved to be useful. I do understand that this program is not very effective and only kills running progs in the foreground. However, that single line is also not very important to information transfer and becomes useless after you clear the cellphone’s foreground information transfer.
Basically when you run atk the line becomes inactive and you can charge the phone without any lockups. I’ve been doing that for about 10 days now. Discharging the battery to about 17% and charging it all the way up again and the phone has not yet turned off once and required a battery pull, nor has it been getting hot.
The idea is to clear the line prior to putting the phone on charge [car or wall]. So what you do is run atk few times [twice at least] then plug the phone in. this worked for both me and my boi here @ mit. After a week plus of testing we decided to release this onto the public.
We both a running stock lg g2x gingerbreads and have not tested it on any other roms, however, I suspect that it will have a similar effect on more leaner and cleaner roms like CS7.
Hope this helps those who are still struggling with this issue.
P.S.
In addition I would like to add that we did pull the battery apart in the lab and found that the stock battery was complete SHAYT! Some of the cells were cracked and overall it was just poorly manufactures. Cracked cells inside the power unit diminish its capacity to carry charge by a factor razed to n^power. Also may cause the battery to heat up during the final stages of its charge process [around 95%] due to the fact that to go the last 5% it will require higher resistance also in n^power. I suspect that in this great economy LG is cutting corners whatever place it can so there’s prolly very minimal quality control in power unit production. To those who think that they lose charge too quickly, that the battery gets too hot during charges, and possibly causing the phone to lock up: If you are using the stock battery, you may want to consider replacing it.
P.P.S.
Overall it is a hardware issue, in our opinion, that could be fixed with the use of the software, by rendering that extra line inactive for example. However, I would like to NOT compliment LG as a corporation and organization in general on their moral standing and responsibility that they carry to their customer base by doing completely nothing about this issue!
Thank You LG, I am no longer your customer.
“Making the world a better place, one action at a time.”

And I thought I was one of the lucky ones...

Had the g2x since launch day, loved the speed, size, etc. Never had a single reboot (actually did once or twice while charging in the first few days), screen bleed and had fairly good battery life to boot with fairly heavy usage. What more can you ask for, right?
So fast forward to today...i was in the middle of typing a text and battery died, I was at 1%. So I plug it in, turn it on and then it got really hot and non stop rebooting only while on the charger. Taking it off the charger would stop the reboots, plug it in again reboot cycle again within minutes (no sound to warn me its rebooting, no start up animation).
Eventually when it was on the charger the battery icon looked really weird, it was completely white with 2 circular arrows in it, never seen that before, anyone know what that means.
After a while the phone cooled down and has now been charging for he last hour with no rebooting. I did call Tmo and they are sending me a new battery and handset.
I am unsure what to do, keep mine since it appears to be fine now or keep the replacement items. I am not rooted completely stock with minimal apps installed.
I really, really dont feel like setting up all my prefs again and reinstalling apps. One thing is for sure i am seriuosly considering the HTC sensation now. Had the MT4G before and it was great, so my perception of HTC is high.

mikea3000 said:
Had the g2x since launch day, loved the speed, size, etc. Never had a single reboot (actually did once or twice while charging in the first few days), screen bleed and had fairly good battery life to boot with fairly heavy usage. What more can you ask for, right?
So fast forward to today...i was in the middle of typing a text and battery died, I was at 1%. So I plug it in, turn it on and then it got really hot and non stop rebooting only while on the charger. Taking it off the charger would stop the reboots, plug it in again reboot cycle again within minutes (no sound to warn me its rebooting, no start up animation).
Eventually when it was on the charger the battery icon looked really weird, it was completely white with 2 circular arrows in it, never seen that before, anyone know what that means.
After a while the phone cooled down and has now been charging for he last hour with no rebooting. I did call Tmo and they are sending me a new battery and handset.
I am unsure what to do, keep mine since it appears to be fine now or keep the replacement items. I am not rooted completely stock with minimal apps installed.
I really, really dont feel like setting up all my prefs again and reinstalling apps. One thing is for sure i am seriuosly considering the HTC sensation now. Had the MT4G before and it was great, so my perception of HTC is high.
Click to expand...
Click to collapse
If you don't notice any problems, keep it
The same thing happened to me this morning
Battery health status OVERHEAT
took off battery cover, i powered off through menu, powered back on through button
WHITE BATTERY REFRESH LOGO followed by media scan
Working as good as ever, and actually my battery life is a little better

Get a new battery asap. Yours is bad if it's overhearing during charge.

diablos991 said:
Get a new battery asap. Yours is bad if it's overhearing during charge.
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im kind of in the same boat as the op but not as bad on the overheating. how do i get a new battery? i bought from amazon and its past the return period.

My opinion of LG is really low. First the sd card slot died on my Optimus T and then numerous problems with my returned G2x. I hate to say it, but the grass is definitely greener on the HTC side right now. I will be checking out the sensation if permaroot happens.

yup, mine did the same thing. all was good for a month or so then boom my battery just freaked out. I wrestled with it a few days then last night it went from 100% - 0% in 6hrs while powered off. It's the battery. Get a new one.

Mine doesn't reboot...it just shuts off. Won't turn back on until I yank the battery. Only issue happens like once a day. But ill point out I'm now pissed Droid x gets gb Friday and I'm still using froyo...granted.by choice because I refuse to use a leak.
Sent from my LG-P999 using XDA Premium App

ericc191 said:
My opinion of LG is really low. First the sd card slot died on my Optimus T and then numerous problems with my returned G2x. I hate to say it, but the grass is definitely greener on the HTC side right now. I will be checking out the sensation if permaroot happens.
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Not to change subject here but permaroot doesn't do much if the bootloader is locked. Gaining root doesn't mean custom roms or mods. You'll be able to use Titanium Backup but so what.
Also, back on topic. There are lots of reports that the batteries are bad and if it is over heating I'd definatly replace it.
Tmo sent me a replacement G2x after I thought I fried mine. I fixed it eventually by flashing several CWM recoveries. The replacement had nasty screen bleed. Needless-to-say I sent the replacement packing.

I was using my phone all day yesterday like usual I let my battery die all the way before charging again and today for some reason my battery is dying quickly.
Took off the charger at 6 am and it is now 11am and I have only 50% usually I have 70% or so. I hope my battery is not crapping out on me... I guess Ill find out in the next few days maybe this is just a fluke... I hope...

player911 said:
Not to change subject here but permaroot doesn't do much if the bootloader is locked. Gaining root doesn't mean custom roms or mods. You'll be able to use Titanium Backup but so what.
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Click to collapse
Good thing it's not gonna be locked then eh?
http://www.tmonews.com/2011/05/htc-decides-to-unlock-bootloaders-moving-forward/

RevenG said:
Good thing it's not gonna be locked then eh?
http://www.tmonews.com/2011/05/htc-decides-to-unlock-bootloaders-moving-forward/
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Click to collapse
It is locked and HTC said this policy applies only moving forward. Which means future phones. There is no word about existing phones yet.
Sent from my G2x

I am on my third G2x. From the day I received the last one(3 weeks ago) it has been rock solid(NO reboots-no screen freezes- no dropping data connections). Two days ago I bought a router and decided to use wifi in my home. Since hooking it up and running the G2X on it I find that I have reboots-screen freezes and oh yes data connection dropped (numerous times)I guess the wifi is just not meant for this phone. 3 weeks of happy usage and bam!! wifi in the house. I have also had apps changing settings without my doing so( never happened before wifi usage<) Also now the Gps is even worse than before.Been running it without the wifi and still getting the same issues now. Oh how I wish I had just stopped after the second one and asked for refund. This could (and probably will be eventually) a super super phone. I just don't know if I have the patience to wait . I just ordered an Asus Transformer which will be here on 5/31/11, maybe playing with it will soften my stance on how I view the G2x at this moment. Anyone else had the wifi situation?

I'm rooted with cwm. I have random freezes but it appears to only be random kernels. As well as only certain versions of android. Once the gb update comes out, I'm sure alot of our problems will clear up...
Sent from my LG-P999 using XDA App

[Q] Power up without battery

My phone has water damage and I'm not sure if it is the battery or the phone (I'm assuming the later, but just in case). Is it possible to power on my G2x without the battery in it?
-ishould

ishould said:
My phone has water damage and I'm not sure if it is the battery or the phone (I'm assuming the later, but just in case). Is it possible to power on my G2x without the battery in it?
-ishould
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Click to collapse
If the phone recently gotten water damage then I recommend not powering it up for about 3-4 days to let the water dry out. Water can short out the electrical system and cause big problems.
Sent from my LG-P999 using XDA Premium App

leave it alone for 1 week minimum

bag of rice for sure 2 days minimum, washed my old mytouch 3g in the washer for 2 minutes, through it in a bag of rice went out for the weekend came back and turned it on with only some screen wash inside of it. DO NOT POWER IT ON AT ALL

Washed my Nexus One. I tried the rice trick and a couple of days on top of a hot radiator with no luck, the phone would lock up or reboot. So I bought a G2x and forgot about the Nexus in a desk drawer.
2 months later I tried the N1 again and it suddenly worked fine. I put my buggy G2x away for couple of weeks and went back to the once wet Google phone without any issues at all.
The G2x is back in my pocket now though, ROMs like Weapon 2.0 have me loving it like the cool new gadget I'd always hoped it would be.

ya the rice trick works... if you don't turn it on... but the poweron without the battery? i have no clue... wish you the best of luck or try and send it back? hopefully you wont get charged for a new one....

I try to turn on phone with no battery. And it will not turn on.
Sent from my LG-P999 using XDA Premium App

Spyvie said:
Washed my Nexus One. I tried the rice trick and a couple of days on top of a hot radiator with no luck, the phone would lock up or reboot. So I bought a G2x and forgot about the Nexus in a desk drawer.
2 months later I tried the N1 again and it suddenly worked fine. I put my buggy G2x away for couple of weeks and went back to the once wet Google phone without any issues at all.
The G2x is back in my pocket now though, ROMs like Weapon 2.0 have me loving it like the cool new gadget I'd always hoped it would be.
Click to expand...
Click to collapse
Exactly, WeaponG2x is just awesome. My exact same feelings in your post.
Sent From My G2x Running Weapon

Possible BSOD cure..

I got my G2X last week and of course had to root it and load the latest CM7 nightly but after i did this anytime the screen would timeout it wouldn't come back on. The buttons lit up and there was a little light escaping the four corners of the screen but that was all.This problem continued every time the screen would timeout so eventually i just set the timeout to 30min until i could diagnose the problem.Anyway my last phone was a Nexus One([probably doesn't make a difference) and I used the same memory card that i had been using in the Nexus One for the last three years to root and run my apps on the G2X.
This usually isn't a big deal because we do this all the time but I decided to see what would happen if i tried to load CM7 and run apps from a fresh memory card so I did the experiment and it worked no more BSOD even when i try to get one. I'm not sure if the other card had an issue or what because as I said it worked just fine in the Nexus but it was the problem for the G2X. Maybe since it had been in the Nexus so long it dint want to cooperate with any other phone who knows but I figured i would pass this along because I've been seeing a few people with this problem and I thought this could help everyone out.

To be honest, I believe its the battery.
I have 3 G2X batteries. 2 Stock and the big 3000mah one.
I had to use the big one for a few days because I needed this phone to last long without charging.
I went back to a Stock battery. I have 2 so I just picked one. And it went Black Screen of Death every time it charged. It froze my phone constantly and the phone also got very very hot. Felt like my phone would melt.
I really got pissed and tried the other stock battery. And...... its fine. I haven't had Black screen of death, no crazy overheat when charging, and really the phone is stable. I'm shocked honestly.
I'm willing to say at this point its the battery. I've used the big 3000mah and I never had the Black Screen happen to me on it. But I hate using that huge battery because its so big. Also, because my phone isn't in a rubber case when using that monster battery, so I feel like my phone is unprotected.
I really believe the hardware issue is inside the charging circuits and the battery in use.
I'm on CM7 Nightly by Kang. I don't flash that often anymore. Its the Jan 13 ROM I think.
Just stating what I've seen happen to me. Its the battery/charging circuits. I might get Black Screen of Deaths, but with the other crappy battery, it happened at least 2 times a day.

I never got this but I have got random reboots on MIUI....That's all

To me the battery ic chips are bad that controls the voltage at what level.. pior battery quality assurance led g2x ****ty performance.. iam myself looking to buy new battery..
Sent via G2X-SINGH-UI

I had a few bsod prior to flashing and a few after flashing...HAVENT had one since replacing the stock battery. This is all i know.

Flashing faux's CM7 kernel seems to of fixed the freezing during charging for me. Going on 1 week now without problems
Sent from my LG-P999 using Tapatalk

When i first got the phone from my friend to check out. popped my sim card in it i would get a freeze every few hours or 10 times in 5 minutes some times a full day and nothing. Got mad at it reflashed CM7 on it and played with it a little on wifi put it on my desk and forgot about it for a dar... went back and noticed it still had not froze so far im on day 3 with out haveing any issues at all with the phone not a single freeze or reboot.
So its been going on three days. im giving it one week with no sim card in it to see if it freezes. Using the phone as normal over wifi at home... and using the hotspot on my vibrant to use the G2X to make calls with groovIP and text with google voice. along with normal use of the phone like taking pictures/facebooking/emails ect.
any thoughts on this?

I agree on the battery not playing nice with rest of hardware. Just got 2 hyperion 1800mah's and now my phone has locked up more than 5 times on 3 different roms. Just like undervolting and instability issues. I have owned 4 G2x's and I have 5 different makes/specs of batteries. Also, I've owned both early and late model versions of the phone. The battery is definitely the weakest link
Sent from my LG-P999 using xda premium

The cheep Chinese 3500mwh battery i picked up has had 0 locks/bsod
Sent from my LG-P999 using XDA App

jhayton said:
The cheep Chinese 3500mwh battery i picked up has had 0 locks/bsod
Sent from my LG-P999 using XDA App
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I've noticed that too,on stock battery got them all the time tho...
Sent from my LG-P999 using xda premium

Personally, I think it's caused by several different problems. I've been using the same battery since the phone came out and the only time I've had this happen is using Faux kernel, even after reflashing a couple times. Flashed Trinity ELP over it and it was fine. *shrug*

d12unk13astard said:
I've noticed that too,on stock battery got them all the time tho...
Sent from my LG-P999 using xda premium
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Click to collapse
Yep my 15 dollar battery hasn't let me down yet either
Pin it to Win it.

[Q] Mytouch 4G Slide bricked while using

I installed a stable version of cyanogenmod 9 on my phone and the system was working perfectly, but I spent some time without using it because it didn't have any signal(I think its aerial is broken). After some time I decided to try to fix it, so I turned it on. It booted normally, but shortly it turned off by itself. Then I tried to turned it on again successfully, but again it turned off. I thought it was the battery so I plugged the phone, but it wasn't showing any sign of being charged. So I tried to charge the battery out of the phone and I checked its voltage, but when I put it back in the phone, it didn't work. The only thing I see, when I try to turn it on is a dim red light in the trackpad.
Any ideas of what happened? Is this reversible?
Thanks in advance.

I'm no expert, but it unfortunately sounds bricked to me.
Similar thing happened on my 1st MT4GS after like a week of owning it. We were on vacation and I was playing fruit ninja, slashing happily away as the phone was plugged in for bedtime. All of a sudden it turns off. I'm like WTF, it was charging! But it apparently wasn't, and similar symptoms to you. No other lights/charge/indication of anything working. Just the dim red light in the track pad I could get to go on and off. Since it was just over a month old after I got back from vacation, I wound up having to ship to HTC rather than walk out with a new one from t-mobile, but they sent me a replacement I've been using since.
So sorry I don't have better news, but it sounds like what happened to me, and it was dead and had to be replaced.

Hi,
This has happened to me two or three times but thankfully I have a few other devices so I needn't worry much.
When this happens I take out sim, SD and battery for a week or so. Upon reinserting battery all was good each time.
If you have a spare try it, I can't say for sure if we are on the same boat but its worth a shot before throwing it away.
Sent from my Nexus 4 using XDA Premium 4 mobile app
Edit
Here is a link that I and a few other discussed our issues, none the same but all similar.
http://forum.xda-developers.com/showthread.php?t=2257451
Also there are plenty of other threads I seen on this as well, search around a bit and hopefully you'll find an answer
Best of luck!

So there's some threads I just shouldn't read ...
After coming across this today my phone has started turning off by itself (doing routine things, like pressing the "Read" button on an SMS). There's gotta be a weird coincidence there (I had an underclock issue where the screen wouldn't come on a couple months ago while earlier that day I was reading the post on how to replace a bad LCD panel - so I get to overreact like that).
I think my issue is more about battery as I have been tracking it the past several hours (three shutdowns in a row at 60% battery, and then one ten minutes ago at 20%) but it continues to work itself out (with some weird stuff like notification panel crashing on me on one of the last reboots).
I have what I presume is a cheap 1900mAh battery (EZOPower) that is starting to show it's wrinkles. I have dropped the max processor speed a notch according to a recommendation in this post:
http://forum.xda-developers.com/showthread.php?t=2753720
...hopefully that was the issue. I nandroid'd my device just in case something goes wrong. If it continues, I'll swap batteries and see.
I'm hesitant to shell out for a couple Ankers because I currently have my eye on the LG Optimus F3Q (although getting one would be three months away, I gotta have priorities).