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I had manually loaded ICS 4.0.3 but didn't like it and tried to go back to 3.5. I used the unlock ROM that's been floating around here for awhile. When it was done installing I re-booted, the "SAMSUNG" logo came up and then screen goes blank. Only way to turn phone off is to pull battery.
I can get into Samsung recovery mode but when I try factory reset it tells me cache/recovery files cannot be found.
Any help on a solution would be appreciated.
Fortunately I have a friend at corporate or I'd really be screwed. He can get me a new phone but I'd like to try and fix this one as it's my fault.
Can you get into download mode and Odin a stock image?
Sent from my SGH-T989 using xda app-developers app
I'm going to try that first thing in the morning as I left the phone at my office. I'll let you know if it works.
Hallelujah! Odin recovery worked! Thanks for the suggestion!
socal88 said:
Hallelujah! Odin recovery worked! Thanks for the suggestion!
Click to expand...
Click to collapse
Excellent!
I was making a TWRP Backup when all of the sudden my phone just randomly turns off. I grabed my phone and it was really hot. Tried turning it on, but nothing happened. Then I connected it to the ac adapter and it turned on, but it would go to the LG logo, the screen turns black then it restarts. This does not stop unless I unplug it. I had previously made two backups before and nothing like this happened, but this time I enabled conpression<-------- This must have been what caused this. All I want to know is if this can be fixed or not. If it could be fixed I would be so happy if somone could tell me how to fix this. THANK YOU. P.S. THIS PHONE IS A BEAST. D
cgtrr34 said:
I was making a TWRP Backup when all of the sudden my phone just randomly turns off. I grabed my phone and it was really hot. Tried turning it on, but nothing happened. Then I connected it to the ac adapter and it turned on, but it would go to the LG logo, the screen turns black then it restarts. This does not stop unless I unplug it. I had previously made two backups before and nothing like this happened, but this time I enabled conpression<-------- This must have been what caused this. All I want to know is if this can be fixed or not. If it could be fixed I would be so happy if somone could tell me how to fix this. THANK YOU. P.S. THIS PHONE IS A BEAST. D
Click to expand...
Click to collapse
Can you boot into recovery and restore a previous backup?
Sent from my LG-LS970 using Tapatalk 2
cowfodder said:
Can you boot into recovery and restore a previous backup?
Sent from my LG-LS970 using Tapatalk 2
Click to expand...
Click to collapse
It does not let me go into recovery, the screen goes black then restarts. All I can do is go into fastboot and Download mode.
cgtrr34 said:
It does not let me go into recovery, the screen goes black then restarts. All I can do is go into fastboot and Download mode.
Click to expand...
Click to collapse
Likely bricked. Do you have flashing notification and capacitive lights? Have you LGNPST'd? If yes to both of those questions, you're in the same predicament as I was and hopefully you have insurance, because your phone is fried.
xboxfanj said:
Likely bricked. Do you have flashing notification and capacitive lights? Have you LGNPST'd? If yes to both of those questions, you're in the same predicament as I was and hopefully you have insurance, because your phone is fried.
Click to expand...
Click to collapse
I do have flashing notification and capacitive lights. But I don't know what LGNPST is.(sorry I'm new to this) this is my first android phone
cgtrr34 said:
I do have flashing notification and capacitive lights. But I don't know what LGNPST is.(sorry I'm new to this) this is my first android phone
Click to expand...
Click to collapse
Sounds like you are toast. Take it to Sprint and have em swap it out for ya. Hopefully you either have insurance or are within your 14-days to return it.
xboxfanj said:
Sounds like you are toast. Take it to Sprint and have em swap it out for ya. Hopefully you either have insurance or are within your 14-days to return it.
Click to expand...
Click to collapse
Will they swap a rooted and unlocked phone?
cgtrr34 said:
Will they swap a rooted and unlocked phone?
Click to expand...
Click to collapse
Sprint's policy on root is to document it but not do anything about it, so they would swap it. If you're worried, I can help you restore stock firmware.
xboxfanj said:
Sprint's policy on root is to document it but not do anything about it, so they would swap it. If you're worried, I can help you restore stock firmware.
Click to expand...
Click to collapse
How could I restore it to stock firmware. And also thank you for replying back and helping me out
cgtrr34 said:
How could I restore it to stock firmware. And also thank you for replying back and helping me out
Click to expand...
Click to collapse
I will PM you about that since it is against forum rules and perhaps laws to post copyrighted stuff here.
xboxfanj said:
I will PM you about that since it is against forum rules and perhaps laws to post copyrighted stuff here.
Click to expand...
Click to collapse
OK thank You so much!
cgtrr34 said:
I was making a TWRP Backup when all of the sudden my phone just randomly turns off. I grabed my phone and it was really hot. Tried turning it on, but nothing happened. Then I connected it to the ac adapter and it turned on, but it would go to the LG logo, the screen turns black then it restarts. This does not stop unless I unplug it. I had previously made two backups before and nothing like this happened, but this time I enabled conpression<-------- This must have been what caused this. All I want to know is if this can be fixed or not. If it could be fixed I would be so happy if somone could tell me how to fix this. THANK YOU. P.S. THIS PHONE IS A BEAST. D
Click to expand...
Click to collapse
WTF!!!!! I just bricked my phone in less then 24 hours of owning it. I just rooted and unlocked it and right after making a TWRP Backup and rebooting my phone wouldn't turn on and it was HOT AS HELL!!
I got it exchanged at Best Buy but now im scared to do anything with it.
shook187 said:
WTF!!!!! I just bricked my phone in less then 24 hours of owning it. I just rooted and unlocked it and right after making a TWRP Backup and rebooting my phone wouldn't turn on and it was HOT AS HELL!!
I got it exchanged at Best Buy but now im scared to do anything with it.
Click to expand...
Click to collapse
Same happened to me. The phone overheats in recovery, so do what you need to do and then get out of it.
xboxfanj said:
Same happened to me. The phone overheats in recovery, so do what you need to do and then get out of it.
Click to expand...
Click to collapse
Im on the new phone and Im using clockwork and all is fine so far. I definitely suggest guys stop using twrp.
Sent from my LG-LS970 using XDA Premium HD app
Restore to stock when stuck at LG logo screen
xboxfanj said:
I will PM you about that since it is against forum rules and perhaps laws to post copyrighted stuff here.
Click to expand...
Click to collapse
Would you please help me out to restore to stock from a stuck LG logo screen? I can't even boot into fastboot or recovery. I tried LGNPST number of tries with different .bin files with no luck. I also tried a lot of diff things, too. Please email me at [email protected]. Thank you very much!
phatjulie said:
Would you please help me out to restore to stock from a stuck LG logo screen? I can't even boot into fastboot or recovery. I tried LGNPST number of tries with different .bin files with no luck. I also tried a lot of diff things, too. Please email me at [email protected]. Thank you very much!
Click to expand...
Click to collapse
I suggest you TEP it.
Sent from my LG-LS970 using xda premium
phatjulie said:
Would you please help me out to restore to stock from a stuck LG logo screen? I can't even boot into fastboot or recovery. I tried LGNPST number of tries with different .bin files with no luck. I also tried a lot of diff things, too. Please email me at [email protected]. Thank you very much!
Click to expand...
Click to collapse
Pull battery using a torx t5 screwdriver and phillips #00 if you don't have insurance.
xboxfanj said:
Pull battery using a torx t5 screwdriver and phillips #00 if you don't have insurance.
Click to expand...
Click to collapse
What's the purpose of pulling battery out? Just a try? I'm gonna have to get it from Fry's tomorrow and try that first.
phatjulie said:
What's the purpose of pulling battery out? Just a try? I'm gonna have to get it from Fry's tomorrow and try that first.
Click to expand...
Click to collapse
Because your phone doesn't know if it needs to be in charging mode or booting. Pulling battery will fix it.
Sent from my LG-LS970 using xda app-developers app
I had a similar problem as you. Upon getting the phone I rooted and used the FreeGee app from the Google Play store to unlock the bootloader. Everything seemed fine and dandy, until one day when I let my phone's battery drain completely. Pluggin it in to a wall charger resulted in the failed boot where the LG logo flashes before going to a blank, but backlit screen. Luckily, the first few times this happened, through a combination of quickly plugging and unplugging the usb cord and holding the volume up+power button, I could get it into recovery (TWRP). Then a simple cache & dalvik cache wipe, and the phone would boot up as if nothing ever happened. Very strange.
Well yesterday this happened again, however, this time there was no getting the phone into recovery. My previous methods of button mashing and plugging and unplugging weren't working. So, I decided to bite the bullet and use LGNPST to get back to ZV7. Now, like you mentioned, this failed boot would automatically happen, without pressing the power button to turn it on. So it was difficult to get the phone to stay off. I found that with the phone unplugged, if you continue to press the power button until the blank backlit screen turns off, AND continue to hold the power button for an additional five seconds, the phone would stay off and not auto power on into the failed boot.
Once I was able to get the phone to stay off, I pressed the middle of the volume key to depress both volume up and down, and then plugged a usb cord that was attached to my computer. This powered on the phone into download mode. Following the LGNPST guide I was able to get to around 67% complete before my phone turned off and an error message flashed on the computer screen telling me to power cycle the phone and reconnect. Well, the whole 67%/85% LGNPST failure is apparently common and not indicative of an actual failure; HOWEVER, my phone became completely unresponsive. It wouldn't power on at all. It didn't matter if the usb was unplugged or connected to the computer or wall charger. So, I was forced to unplug the battery. I followed this tutorial and successfully disconnected and reconnected the battery cord, and the phone shot back to life. It even booted up into the factory stock ZV7 rom. I guess that LGNPST was successful. It looked like I was on my way to returning my phone to breezy's deodexed ZV9 stock rom that I was previously running.
I went ahead and re-rooted, ran the FreeGee app again, and rebooted into recovery. Then I made a backup and attempted to flash my new rom. Now, I think this is where I royally screwed up. I was pleasantly surprised to see my screen layout and all of my settings still intact after LGNPST back to ZV7 and thought I could just wipe the caches and ignore the factory reset and system wipe before flashing. Perhaps it was this, but part of me also thinks there might be something wrong with my battery draining extremely fast in recovery.
I proceeded to flash and all seemed good, but rebooting resulted in the LG logo failed boot that we have already discussed. So, I went ahead and repeated the LGNPST-re-root process numerous times (switching to the freegee 0.5 batch file instead of the app). Everytime after the first initial restore, I could never get my phone to enter recovery. As soon as I rebooted after using freegee, the phone would be soft bricked again. Sometimes I would get the LG logo thing, other times I would get the dreaded alternating flashing red notification light and soft keys. A battery pull was usually required in these circumstances before I could get back into download mode to start all over.
I was about ready to give up when I took to the LGOG irc channel. That's when Xboxfanj stepped in and helped me out IMMENSELY. Over the course of several hours, he walked me through flashing some partitions in ADB. At times it seemed like there was no hope and that I should have just returned the phone, but he failed to acquiesce, we pushed forth trying a couple of other bootloader options. The new bootloader appeared to have fixed the phones erratic behavior with powering on and off, but I had no rom to boot into and no recovery. Xboxfanj recommended using fastboot to flash over a recovery. Once in the new bootloader screen my Windows XP machine detected new hardware and wanted some drivers. I attempted to use the [ADB/FB/APX Driver] Universal Naked Driver 0.72, but XP indicated that I was missing 'winusbcoinstaller2.dll'.
I grabbed winusbcoinstaller2.dll from here and all was good. Fastboot recognized the phone, I was able to flash recovery and subsequently boot into recovery. From there I reformatted the system, wiped data/factory restore, wiped cache, wiped dalvik cache, and flashed breezy's ZV9 deodexed rom.
Fortunately, after around 7 hours, I am happy to say my phone is back to being rooted, unlocked, and running ZV9. It powers on and off properly and can get into recovery without a hitch. I'm still curious what will happen if I let my battery drain completely. Perhaps I'll try it some time this week. I'll be sure to post back here if/when I do that. All in all, it was a harrowing, but educational experience.
Anyway, just wanted to give a big THANK YOU to Xboxfanj! You really are the man :good:. Thanks for your patience and determination.
Bleh just got my Optimus yesterday, came stock with zv9. Decided to root today and had no trouble, flashed TWRP recovery using FreeGee then updated to the newest TWRP version using GooManager. Made a backup using TWRP then used GooManager to download Lifeless ROM. Just downloaded, didn't flash. After the download was done I shut off my Optimus but when I went to restart it, it powered on, showed the LG logo for half a second then just went to a black screen. Can't boot to recovery. Whenever I try and turn the phone off it just restarts again showing the logo for brief period of time then black. Any ideas? It's gotta be bricked but I just don't understand how or why. Probably going to try and take the battery out and see what happens.
hotpeanuts said:
Bleh just got my Optimus yesterday, came stock with zv9. Decided to root today and had no trouble, flashed TWRP recovery using FreeGee then updated to the newest TWRP version using GooManager. Made a backup using TWRP then used GooManager to download Lifeless ROM. Just downloaded, didn't flash. After the download was done I shut off my Optimus but when I went to restart it, it powered on, showed the LG logo for half a second then just went to a black screen. Can't boot to recovery. Whenever I try and turn the phone off it just restarts again showing the logo for brief period of time then black. Any ideas? It's gotta be bricked but I just don't understand how or why. Probably going to try and take the battery out and see what happens.
Click to expand...
Click to collapse
okay well your not bricked if you can get even a little life like an LG screen. hook phone up to computer and use adb to get into bootloader and try to reflash the recovery img again. it just sounds like you need to reflash your recovery. thats why it didnt flash. lemme know. ill keep checking back on the thread for awhile
Evolutionmods said:
okay well your not bricked if you can get even a little life like an LG screen. hook phone up to computer and use adb to get into bootloader and try to reflash the recovery img again. it just sounds like you need to reflash your recovery. thats why it didnt flash. lemme know. ill keep checking back on the thread for awhile
Click to expand...
Click to collapse
Okay perfect I appreciate it. Downloading SDK right now, I'm away from my desktop and didn't have it on my lappy. LG has a program similar to ODIN too right? Would that maybe work as well?
You would need LGNPST. you can find it in the IRC if you can get to download mode you can flash back to stock and start over.
neemot said:
You would need LGNPST. you can find it in the IRC if you can get to download mode you can flash back to stock and start over.
Click to expand...
Click to collapse
Yeah that's it thanks. But forgot- can't get in to download mode so that won't work.
I ran the command "adb devices" and the Optimus didn't show up. Is there anything else I can do/try?
hotpeanuts said:
Yeah that's it thanks. But forgot- can't get in to download mode so that won't work.
Click to expand...
Click to collapse
Just because the screen doesn't come on don't think the phone is off. Plug that sucker in. If you see the logo you should be able to get in download mode. Also, if the phone is on, you will eventually see some green android screen.
The same thing happened to my phone once. I only know of one way to hard brick this phone. I am not telling anyone how. But, I doubt you did that. It isn't something you would accidentally do.
Sent from my LG-LS970 using xda premium
hotpeanuts said:
Yeah that's it thanks. But forgot- can't get in to download mode so that won't work.
Click to expand...
Click to collapse
Sometimes my power button won't work for dlmode just hold volume down volume up and plug in
kc_exactly said:
Just because the screen doesn't come on don't think the phone is off. Plug that sucker in. If you see the logo you should be able to get in download mode. Also, if the phone is on, you will eventually see some green android screen.
The same thing happened to my phone once. I only know of one way to hard brick this phone. I am not telling anyone how. But, I doubt you did that. It isn't something you would accidentally do.
Sent from my LG-LS970 using xda premium
Click to expand...
Click to collapse
It's on but it just shows a flat black screen. No matter how long it is on it doesn't get passed that. Also, when it's plugged in there aren't any charging lights. Not sure what to do since adb doesn't recognize it.
neemot said:
Sometimes my power button won't work for dlmode just hold volume down volume up and plug in
Click to expand...
Click to collapse
Holy boobs volume up and plugging in worked. You are an angel much thanks.
I had the same situation a month or two ago. Try leaving it off for 20 minutes and see if it boots back up. Worked for me and like you I had no idea why it did that
Sent from my LG-LS970 using xda app-developers app
Funny, that plugging it in step is always overlooked. I should of told you that.
Sent from my LG-LS970 using xda premium
Haha KC glad I can state the easiest part lol
Sent from my Nexus 7 using xda premium
i did this this past weekend. Dumb mistake, i forot that it wiped the unlocked and there isnt unlocking yet for JB.
After using LGNPST my radios/3g/network connection is screwed up. I cant connect to anything.
Update your profile.
If that doesn't work LGNPST again. Factory reset. Then update the profile.
Sent from my LG-LS970 using xda premium
If what kc doesn't end up working it could be that you efs got wiped. Check this thread for help http://forum.xda-developers.com/showthread.php?t=2161498
Sent from my LG-LS970 using xda premium
These are what I tried:
factory wipe/data reset from stock recovery
MSL reset (suggested by Sprint)
lgnpst reset
All of which failed to work
tlxxxsracer said:
These are what I tried:
factory wipe/data reset from stock recovery
MSL reset (suggested by Sprint)
lgnpst reset
All of which failed to work
Click to expand...
Click to collapse
Had you made back ups of your efs?
hi, i just tried to update to jb evrything was going fine and all of the sudden the screen shut off and now the charging light and the buttons are flashing, im rooted and was doing the update through twrp.
please help, thanks
Ram1500 said:
hi, i just tried to update to jb evrything was going fine and all of the sudden the screen shut off and now the charging light and the buttons are flashing, im rooted and was doing the update through twrp.
please help, thanks
Click to expand...
Click to collapse
You are going to have to pull the battery.
Alright guys and girls - I need your help. I had a weird issue come up yesterday, and I'm trying to figure out how to go forward. My phone ran low on battery and died, so I plugged it in to charge like normal. Today, I tried to boot, but can't. I can boot into recovery ok, but that's it. If I boot to download mode, it only gives me a few seconds before the screen goes black. If I try to connect to the PC to flash through Odin, it doesn't recognize as a USB device. However, if I boot to recovery and mount the phone as a usb device, it recognizes and I can get into the external sd card no problem. Also, if I try to just boot normally into system, it boots to the Samsung boot screen and then goes black.
My question is - did I some how brick, or is something else going on? I'd hate to go through all the steps of unbricking if that isn't what I'm dealing with. Thanks in advance.
Have you already tried flashing a ROM via sideload/sdcard?
eduardog131 said:
Have you already tried flashing a ROM via sideload/sdcard?
Click to expand...
Click to collapse
I didn't try a new rom, but I did try a backup that I know works. Let me give it a shot with a re-flash of the rom I have. I'd like to see if I could find a zip that will flash a full stock Tmo rom, but from what I am reading, it doesn't flash all the bits and pieces like Odin.
EDIT: No go - tried a rom re-flash (wiped clean), but still won't boot to system or download mode.
koz said:
I didn't try a new rom, but I did try a backup that I know works. Let me give it a shot with a re-flash of the rom I have. I'd like to see if I could find a zip that will flash a full stock Tmo rom, but from what I am reading, it doesn't flash all the bits and pieces like Odin.
EDIT: No go - tried a rom re-flash (wiped clean), but still won't boot to system or download mode.
Click to expand...
Click to collapse
Try doing the unbrick method. That might work if nothing else works.
Im not 100 percent sure because im not an expert by anymeans but it could be a motherboard but my guess is just as hood as anyone elses
Sent from my SAMSUNG-SGH-T999 using XDA Premium 4 mobile app
You are not hard bricked, so debricking won't help.
First thing, remove and put your battery back in. Does it try to boot on its own? If so it's a faulty power switch.
Sent from my SAMSUNG-SGH-I747 using Tapatalk
DocHoliday77 said:
You are not hard bricked, so debricking won't help.
First thing, remove and put your battery back in. Does it try to boot on its own? If so it's a faulty power switch.
Sent from my SAMSUNG-SGH-I747 using Tapatalk
Click to expand...
Click to collapse
Yeah, tried debricking, but no go. Yes, if I pull the battery & reinstall it, the phone tries to re-boot, but it only gets to the Samsung logo, then goes black. Still think it's a faulty power switch? If so, any idea where I can get one new, or just cannibalize an Ebay phone?
EDIT: I found a Youtube about someone that had something that sounded similar. One of the comments recommended "flicking the power button with your finger about 10 or so times & it should turn on". Tried it, and yep, turned on. Guess after all this it's the power button. Thanks, Doc!
I rooted my Lg G2 sprint version and everything went fine. Then i was an idiot and used TWRP manager to install TWRP, and recovery broke. It booted into Demigod Crash Handler. Next I really wanted to install CM, so like an idiot I used FlashFire to do so, and now my phone just boots into Demigod Crash Handler. Also i can not boot into Fastboot. Download mode doesnt boot fully, it just gets stuck on the screen that says download mode, and my pc doesnt recognize the phone at all. Please help.
can you send me a screenshot on where you are maybe i can help
Tech core said:
can you send me a screenshot on where you are maybe i can help
Click to expand...
Click to collapse
do you mean send a screenshot of the problem with the phone, or my location?
your problem
Sorry I never sent the screenshot. Turned out I fried the logic board. I ended up getting a new phone.