Develop Bugs

Need help! Can't boot phone

Hello all! I've been trying to fix my phone for a few days, and can't seem to do it, so I thought I'd make a post regarding it.
I believe the beginning of this originated after trying to go back to gingerbread from fc15 ICS. To learn from my mistakes, this is NOT good, right? lol. probably because fc15 wasn't made for gingerbread?
I was able to get into CWM, but I couldn't perform a recovery or install a new ROM. At this time (after trying a whole bunch of things to fix my device), I may or may not be rooted, but I'm almost certain I am not because I can't get into CWM. If I have to lose all of my data, I guess I will (I didn't have an SD card at the time - just got one), but if there's any way I would like to keep my data. Also, at this point, I'm at the "formware upgrade encountered an issue. please select revoery mode in kies and try again". I have been able to get rid of this screen in the past, but I'd like to know the best rout to go from here.
I have read about bricked devices for awhile now, but to attempt to link the hazy definition I have with experience, is my device bricked?
Please help me!
Thank you.
tf201

I'm sorry, just now seeing the sticky regarding bricked device prevention. But I'd like to know how to identify a bricked device (besides not being able to do anything at all - which isn't my case), and if I have any option at this point.
tf201

andddlay said:
I'm sorry, just now seeing the sticky regarding bricked device prevention. But I'd like to know how to identify a bricked device (besides not being able to do anything at all - which isn't my case), and if I have any option at this point.
tf201
Click to expand...
Click to collapse
If you can get into download mode then Odin back to el26 like most instructions say to. Once you have a working GB then you can make a decision on where to go from there. Others might have better advice as that's gonna kill all you're data.
Swyped from my E4GT running Blazer 4.1 using xda premium

CyberpodS2 said:
If you can get into download mode then Odin back to el26 like most instructions say to. Once you have a working GB then you can make a decision on where to go from there. Others might have better advice as that's gonna kill all you're data.
Swyped from my E4GT running Blazer 4.1 using xda premium
Click to expand...
Click to collapse
thanks for the reply! after flashing stockcwm-el26, i was able to get back into cwm. however, from there i'm still having trouble. it will not boo. i'm still going to try a whole bunch of stuff lol
tf201

Hopefully someone will comment on my suggestion... If you can get into cwm then I would use calc's format all zip then flash a ROM that has a great record of smooth install.I personally have never had a problem with Blazer so that's what I would flash. Like I said, hopefully someone will either agree or have a better solution before you go with my idea. Good luck and make sure if you get it going you share your leanings!
Swyped from my E4GT running Blazer 4.1 using xda premium

Best bet is to download one of sfhub's one click root methods since your phone can still get into download mode. Doesn't matter what u already have on ur phone as his method will wipe all and replace all as long as you can get into download mode with your computer recognizing ur phone.
Sent from my SPH-D710 using XDA

dante32278 said:
Best bet is to download one of sfhub's one click root methods since your phone can still get into download mode. Doesn't matter what u already have on ur phone as his method will wipe all and replace all as long as you can get into download mode with your computer recognizing ur phone.
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
Yea what he said... Much easier than screwing around with flashing stuff like I suggested.
Swyped from my E4GT running Blazer 4.1 using xda premium

sorry for responding so late!
thank you both very much. i tried the program, and was still unable to recover the device - it always hung right at the end, unfortunately. a replacement device is in the mail, and i should get it very soon (thankfully for free).
another question i suppose i would like to ask...on cwm, it says i can mount internal storage as a mass-storage-device. when i try to do this, nothing pops up. is there a way to do this and, potentially, recovering my data?
tf201

[Q] Phone wont turn on please help

Okay i know its probably hard bricked sadly but just want to make sure.
Okay well i was trying to install energy 2.0 hd rom and i think i may of downloaded the wrong one. but when i tried to install it, it keeped aborting. so i went to install my old rom again. it finish installing i went to reboot it then it wouldnt turn back on. When i take the battery out and put it on the charger the red charging light comes on for like 2mins but then goes away. it wont turn on at all and it wont even show up on my laptop. can anyone help me try to solve this problem.

Absolutely 100% hard bricked i can confirm this ,it just happened to me last week ,i can say one thing i wont be flashing anymore roms when i get mine back on this device as ive never seen such a model that bricks so easily and even with flashing correct roms, very tempermental...
Be sticking with root only
Only fix for you is jtag service for 60$
Sent from my LG-MS770 using xda app-developers app
---------- Post added at 10:33 PM ---------- Previous post was at 10:31 PM ----------
The red light is a sure indicator,i read attempted fixes tried usb jig took to a local tech
what happens is the bootloader wipes.Just jtag it through www.mobiltechvideos.com
Sent from my LG-MS770 using xda app-developers app

Welcome to XDA if you are just joining us today. Pretty unpleasant first post I'm sure.
Anyhow.. did you mean to say synergy ROM instead of energy ROM? if phone won't turn on or not recornize you are in pretty bad shape. But there might still be hope. Try a few of these things if you haven't,
Charge battery fully maybe battery drained too fast and couldn't keep up with booting process.
Once it boot and all goes well, great. If not find stock kernel in development section and install it and try to reboot.
Check if drivers are installed properly if not reinstall drivers so PC can recornize your device.
If your PC can recornize it use Odin method to restore stock ROM or reinstall recovery.
By the way how did you root your phone? What recovery and how did you try to install custom ROM?
Good luck with everything. I'm sure its sucks but you are in the right place. We are here to help each other..
Sent from my SGH-T999 using xda premium

myowin said:
Welcome to XDA if you are just joining us today. Pretty unpleasant first post I'm sure.
Anyhow.. did you mean to say synergy ROM instead of energy ROM? if phone won't turn on or not recornize you are in pretty bad shape. But there might still be hope. Try a few of these things if you haven't,
Charge battery fully maybe battery drained too fast and couldn't keep up with booting process.
Once it boot and all goes well, great. If not find stock kernel in development section and install it and try to reboot.
Check if drivers are installed properly if not reinstall drivers so PC can recornize your device.
If your PC can recornize it use Odin method to restore stock ROM or reinstall recovery.
By the way how did you root your phone? What recovery and how did you try to install custom ROM?
Good luck with everything. I'm sure its sucks but you are in the right place. We are here to help each other..
Sent from my SGH-T999 using xda premium
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Click to collapse
nope energy. and it doesnt turn on at all. only a red light when i take the battery out and put it on the charger.

PaulVir said:
nope energy. and it doesnt turn on at all. only a red light when i take the battery out and put it on the charger.
Click to expand...
Click to collapse
Where did you get that ROM from? If its from another variant you are bricked. You ha we to make sure you install Tmobile ROMs. Sure there are those that say att ROMs also work but you have to be more careful. As for the comment the other guy posted about this phone being tempremental, I'd say his experience was horrible but its not true for everyone. There are many people on here who are running custom phones just fine. You just have to rememeber to read read read. You can't flash international ROMs because they'll brick you.
Sent from my SGH-T999 using xda app-developers app

PaulVir said:
nope energy. and it doesnt turn on at all. only a red light when i take the battery out and put it on the charger.
Click to expand...
Click to collapse
If you flashed energy rom from international s3 forum, you are toasted.
You can not flash any other rom not meant for tmobile s3. I hope you find another way to revive your tmo s3.
Sent from my SGH-T999 using xda premium

Im....telling you its bricked ,your device by what your saying is displaying everything mine was.
The red light that starts up and goes off thats not good.
The bootloader is wiped if it wasnt the pc would see it and you would be able to use odin,but since its wiped there is nothing that can be done
Jtag is the fix, they have a way to rewrite everything using external power supplies and interfaces that rewrite the chipset
Sent from my LG-MS770 using xda app-developers app

[Q] Mobile Odin Pro messing up

Hey guys I was using mobile odin pro, getting ready to go back to stock but staying rooted. So i downloaded stock rooted rom and went to mobile odin. In mobile odin there is an option to wipe cache and dalvik cache so I checked them and hit wipe. I was on about 26% and it warned me that when flashing anything it's recommended to be atleast 50%. I continued anyway cause I was simply wiping cache. It began loading then said rebooting into recovery and never turned on. From what I see it looks like it might be hard brick (won't boot into download mode or recovery). I was wondering have any of you experienced this and is it stay repairable without jtag or do I have to send it to MobileTechVideos (again)?
Hope you guys can help, kinda ironic since I was trying to revert back to stock and stop flashing different roms all the time.

Wow I guess no one else has ran into this issue. Or maybe you guys are tired of so many bricked questions, as so am I, but I thought my case was different since it was from using mobile Odin app instead of the usual "accidently flashed an international rom, now won't boot" thread.
Sent from my PC36100 using xda app-developers app
Edit: Can a mod please delete thread if possible. Will just send in for repair, couldn't find fix anywhere.

re: your issue
Cyphers23 said:
Wow I guess no one else has ran into this issue. Or maybe you guys are tired of so many bricked questions, as so am I, but I thought my case was different since it was from using mobile Odin app instead of the usual "accidently flashed an international rom, now won't boot" thread.
Sent from my PC36100 using xda app-developers app
Edit: Can a mod please delete thread if possible. Will just send in for repair, couldn't find fix anywhere.
Click to expand...
Click to collapse
Your case is not that different than all the other cases similar to yours, you
either did not read all the instructions or you decided not to follow them.

Misterjunky said:
Your case is not that different than all the other cases similar to yours, you
either did not read all the instructions or you decided not to follow them.
Click to expand...
Click to collapse
Yeah maybe possible but they were rather shorts steps, I think they were about 6. Simply written too, don't think I missed anything. After reading online some, I've found that mobile Odin has been known of causing bricks on certain devices. Though the op of the thread said it worked perfect on his. It's ok though I'm just going to get it jtagged, then only rooting it on stock. Well until when TW 4.2 is available to us that is .
Sent from my PC36100 using xda app-developers app

possible option
You may be able to use a USB jig to get it into download mode to attempt to flash it back to working order. You can get them fairly cheap on ebay and i know you can make them if you have a little skill with a soldering iron and find the right thread. otherwise it's probably a no go....

[Q]What went wrong with my Liquid Smooth ROM?

OK ofcourse as all noobs do when they start a noob thread they state that they are a noob... Well I am a noob. and I need help as we noobs tend to ask for. I Apologize but I have done a fair share of reading and before I go of and destroy the phone further I wanted to give my own thread a try.
ok...
So I got this ATT GS3 everything was cool from the store but I wanted to reverse Apps (I Tinker with code here and there). Which would require a simple root. Great... Followed the Simple self explanatory TUT "How to root your phone without tripping the flash Counter". Started doing my thing blah,blah,blah. should have been satisfied. (Here is where the Noob Kicks In). Saw how sick the liquid smooth rom was. loved the look was just tired of stock. so I did it. flashed the rom (No Backup whatsoever just exported contact list :crying At a first glance I was in love still doing my thing.... then I started noticing the glitches (mainly video related). got a newborn and could never just bust out the camera and play proud daddy. So I decided to go back. this is where the big problem Happened. My PC doesn't recognize the Phone via USB(I've tried 4 other computers). Ive read atleast 10 threads and they all say I should go in the dialer but no one has a custom ROM. So Now I cant even debug apps on my phone. I don't know what to do?
From 4.1.2 to Liquid Smooth 4.2.2
Please Help
Sorry if that seems long.

Flash a different rom via recovery.
Sent from my SGH-I747 using Tapatalk 4 Beta

Domoo said:
Flash a different rom via recovery.
Sent from my SGH-I747 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Thank you for the speedy reply can u give me any suggestions. I would like to go back to just the plain Rooted stock Image. also CWM does not work on the phone

theSyth said:
Thank you for the speedy reply can u give me any suggestions. I would like to go back to just the plain Rooted stock Image. also CWM does not work on the phone
Click to expand...
Click to collapse
'm not an expert but it sounds to me like you will need to use odin as described in this thread.
http://forum.xda-developers.com/showthread.php?t=1739426
Hope that helps

Abbyjack said:
'm not an expert but it sounds to me like you will need to use odin as described in this thread.
http://forum.xda-developers.com/showthread.php?t=1739426
Hope that helps
Click to expand...
Click to collapse
Yes Using Odin would be a dream but my PC does not recognize the phone.... so IM stuck. there is a ODIN App now does anyone think I should give that a try?. Like I sed I just don't want to make things worst. all suggestions would be helpful

Do you have android debugging checked under developer settings? If no, try that. Had that problem awhile back and that cleared it. Also, have you tried using another USB cable to connect to your computer? Also have run into problems connecting to the computer because of that. Mobile Odin might be your only option if you can get it on your phone. Just search and read carefully.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

ryankgrant said:
Do you have android debugging checked under developer settings? If no, try that. Had that problem awhile back and that cleared it. Also, have you tried using another USB cable to connect to your computer? Also have run into problems connecting to the computer because of that. Mobile Odin might be your only option if you can get it on your phone. Just search and read carefully.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Yea ive done all that debugging stuff. I'm just gonna do the mobile ODIN.Downloading it now. Wish me luck

Good luck buddy, haha.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

122 omiinfo
ok so I used mobile odin to flash the stock image back on the phone... For Future reference After you flash stock image you go back into the phone in recovery mode and wipe all data (Cache,Dalvic, Factory Reset) I had a crazy issue that side tracked me for about 45 minutes. I got a Flashing Samsung Logo. just put it like this I was already on craigslist looking for another phone. anyway USB debugging still doesn't work but. atleast im back to stock incase I gotta deal with Samsung or AT&T I can prolly slide through

Weird.
When you connect your phone to your computer does it charge? Ive had this problem recently and the phone would charge while connected to the computer, I just couldn't use mass storage. Buying a new cable fixed it though. I'm at a loss.
Maybe now you're on stock try the dialer commands you mentioned in the O.P.. If you haven't already.
Anyway, good luck. if you figure it you should post what you did.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Never never an Lg again

I like lg's hardware. I had optimus 3d and now have optimus g. Both has great hardware.
I have flashed custom roms since windows mobile days, so i should have a little experience..!
But you can never be sure to flash safely especially with Lg. You can loose your imei, baseband...etc
And now i have kernel crash on my loved optimus g... A demogod kernel crash. I can boot in cwm but cant restore system. It restore boot and then system restoring fails. I can also boot in android and after a few seconds it crashes. So it doesnt stay long enough to be fx recognized by pc to save it. Pc doesnt recognize it even in download mode. I will also try with another pc.
You dont have such problems with htc or samsung. The problems with these phones arent so complicated like lg.
SO NEVER AN LG AGAIN...

What about side loading rom? Phones with external sd cards are great in such moments.
Sent from my LG-E975 using XDA Premium 4 mobile app

nchc said:
What about side loading rom? Phones with external sd cards are great in such moments.
Sent from my LG-E975 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I need to try it on another pc, as i said my pc cant see the phone. But it doesnt chage the truth about such problems with Lg.

yup, why not when you mess up the phone and cant do any thing about it, lets rock the blame game..
lu6200 to su640 to lte2 to optimus g to optimus g pro.... never had any issues and never will buy anything else.

You can't blame LG for a mishandeling YOU made.
I had HTC's and Samsung in the past, they all present a "bricking" potential if you start to fool around with Kernel, custom rom, etc.
Now, you should try to restore it back to stock to see if it fixes your issues.

t1mman said:
You can't blame LG for a mishandeling YOU made.
I had HTC's and Samsung in the past, they all present a "bricking" potential if you start to fool around with Kernel, custom rom, etc.
Now, you should try to restore it back to stock to see if it fixes your issues.
Click to expand...
Click to collapse
You should read my post again...
Yes i will try stock rom but i think i have read somewhere that some still has it even after stock rom...

niyazidk said:
You should read my post again...
Yes i will try stock rom but i think i have read somewhere that some still has it even after stock rom...
Click to expand...
Click to collapse
Yes, I've read your post: You've flashed a custom rom and now get a kernel error.
Go back to stock in download mode using KDZ updater and you should be ok.
Follow this guide to the letter:
http://forum.xda-developers.com/showthread.php?t=2010624
And, as I already told, LG can't be blame for anything other than running stock. Even if you only root the device and crash it, you can't blame em for this.

t1mman said:
Yes, I've read your post: You've flashed a custom rom and now get a kernel error.
Go back to stock in download mode using KDZ updater and you should be ok.
Follow this guide to the letter:
http://forum.xda-developers.com/showthread.php?t=2010624
And, as I already told, LG can't be blame for anything other than running stock. Even if you only root the device and crash it, you can't blame em for this.
Click to expand...
Click to collapse
It was stock rom. I have only rooted and unlocked it, then i wiped it in cwm, nothing else...

niyazidk said:
It was stock rom. I have only rooted and unlocked it, then i wiped it in cwm, nothing else...
Click to expand...
Click to collapse
Rooted and unlocked with a custom bootloader is not stock. You can have a lot of issue with the wrong bootloader. I once did!
Get it back to stock with the KDZ, you'll know if it's a software issue and if it's related to the custom/unlocking/rooting.

Wrong post sorrry.

nch26 said:
Man with all respect you even know if LG will update this phone.
Click to expand...
Click to collapse
What are you saying, is this a question? Who are you replying to?
This topic is not about update, it's about a bugus kernel. Don't mix things up please!

Finally... I figured it out. I have used the old KDZ updater and after tons of try, i did it. But again as i said no more LG... Maybe we should stick with a phone that has a sd slot. : )
A sum of what i did
1- find a stock rom from http://lg-phone-firmware.com/index.php?id_mod=20
2-Get old KDZ updater i have uploded and remove zip from the name
3-In KDZ updater choose 3GQCT and i think it was cs emergency, i am not sure and choose your kdz file and finally launch software update
4-Connect your phone in download mode to pc. KDZ updater has kicked the phone out of download mode and couldnt find the phone. Just try again and connect phone again while it extracts kdz file. You could also try different usb ports as i did.
Thats all.

niyazidk said:
Finally... I figured it out. I have used the old KDZ updater and after tons of try, i did it. But again as i said no more LG... Maybe we should stick with a phone that has a sd slot. : )
A sum of what i did
1- find a stock rom from http://lg-phone-firmware.com/index.php?id_mod=20
2-Get old KDZ updater i have uploded and remove zip from the name
3-In KDZ updater choose 3GQCT and i think it was cs emergency, i am not sure and choose your kdz file and finally launch software update
4-Connect your phone in download mode to pc. KDZ updater has kicked the phone out of download mode and couldnt find the phone. Just try again and connect phone again while it extracts kdz file. You could also try different usb ports as i did.
Thats all.
Click to expand...
Click to collapse
That's pretty much what the link I've posted said to do!
Anyway, good to know you're ok now.
If you want to unlock, use this:
Root:
http://forum.xda-developers.com/showthread.php?p=38886073#post38886073
To unlock after, install Project FreeGee from google play
Then CWM/TWRP from FreeGee

t1mman said:
That's pretty much what the link I've posted said to do!
Anyway, good to know you're ok now.
If you want to unlock, use this:
Root:
http://forum.xda-developers.com/showthread.php?p=38886073#post38886073
To unlock after, install Project FreeGee from google play
Then CWM/TWRP from FreeGee
Click to expand...
Click to collapse
That was what i did last time. But i think my problem was cwm. Because i wiped device in cwm and i had that problem. I have choosen cwm instead of twrp because it was preffered. What do you think? Should i choose twrp or cwm? Do you have experience with them?

niyazidk said:
That was what i did last time. But i think my problem was cwm. Because i wiped device in cwm and i had that problem. I have choosen cwm instead of twrp because it was preffered. What do you think? Should i choose twrp or cwm? Do you have experience with them?
Click to expand...
Click to collapse
CWM has issues with the latest Cyanogen, TWRP is apparently required so I installed the latter. I've been running "stock rom" for a month tought, I can't realy tell about Custom roms.

t1mman said:
CWM has issues with the latest Cyanogen, TWRP is apparently required so I installed the latter. I've been running "stock rom" for a month tought, I can't realy tell about Custom roms.
Click to expand...
Click to collapse
Ok so i try also twrp...
Thank you for your time.

niyazidk said:
I like lg's hardware. I had optimus 3d and now have optimus g. Both has great hardware.
I have flashed custom roms since windows mobile days, so i should have a little experience..!
But you can never be sure to flash safely especially with Lg. You can loose your imei, baseband...etc
And now i have kernel crash on my loved optimus g... A demogod kernel crash. I can boot in cwm but cant restore system. It restore boot and then system restoring fails. I can also boot in android and after a few seconds it crashes. So it doesnt stay long enough to be fx recognized by pc to save it. Pc doesnt recognize it even in download mode. I will also try with another pc.
You dont have such problems with htc or samsung. The problems with these phones arent so complicated like lg.
SO NEVER AN LG AGAIN...
Click to expand...
Click to collapse
Can't blame on lg. I see a ip***e fired, my s2 baseband fu***d, all companies made there best. Maybe it's about damaged/dropped phone.

aren't threads/guides on rooting, flashing custom roms/kernels had warned you about a potential bricked device? sometimes it pays to understand/accept what we read.

Dont blame our root or unlocking methods. One day after unlock and root, my battery drain in 4 hours. I even cant flash custom android 4.2.2 ROM.Even twrp doesnt work, appears a black screen. One day i uninstalled NFC apk. And thats it. Everything go back to normal. I dont know why Android 4.2 ROMS dont work on my device in that time, but the battery problem was NFC.
Just sharing an experience.

atifsh said:
yup, why not when you mess up the phone and cant do any thing about it, lets rock the blame game..
lu6200 to su640 to lte2 to optimus g to optimus g pro.... never had any issues and never will buy anything else.
Click to expand...
Click to collapse
Truly. Nitro to LTE2 to OG Pro to G2 :victory: :highfive: