my phone can't boot when connected to pc - Optimus L3, L5, L7 Q&A, Help & Troubleshooting

hi everyone
my LG OPTIMUS L7 P 705 can't boot when it is connected to pc
It just stucks at battery loading
Any solution please
specifications:
stock rom android 4.1.2
rooted with unlocked bootloader
thanks

just wait until you see its booted and you see the lg screen and than plug in.or wait until its complete and plug in.

-CALIBAN666- said:
just wait until you see its booted and you see the lg screen and than plug in.or wait until its complete and plug in.
Click to expand...
Click to collapse
thank you
but it used to boot quite well until suddenly I had this problem
For examle last time I was installing CWM and during the installation, the phone needed to boot but it couldn't.

On L5 E610 i'm having simillar problem. Phone don't boot up when connected to PC - it freezes on LG logo. I discovered that this is happening when I have usb debug option on.
Wysłane z Galaxy 551 przez Tapatalk.
---------------------------
Sorry for my english.

Related

[Q] lg optimus l3 wont start, what to do?

I have been trying to find a stable custom rom for my lg l3 but i have found none for more than a year now. I have installed cm9 but there are still a lot of bugs. I switched to miui it works but then i had another phone and i havent used my l3 for a long time. Now i found a rooted stock rom that i want to flash but i cant turn my lg l3 on. When i plug it in the lg logo appears but does not turn on. I cant access cwm recovery and flash a rom.
What should i do? I want to test if its a battery problem but i dont have a spare battery. I dont care if it boots or not. I just need cwm recovery to flash.
Thanks in advance guys.
Can you get in de download mode? (Holding volume up and down while turning on). If you can reach that you can restore phone with kdz-flasher.
Sent from my LG-E400 using xda app-developers app
ADB
do you have adb installed on your computer??
if not install it (android sdk) and install lg l3 phone pc suite
next power on your phone and connect your phone to pc via usb
open cmd and type
adb reboot recovery
should do the trick..!:good:
Connect to PC
droid_s2 said:
I have been trying to find a stable custom rom for my lg l3 but i have found none for more than a year now. I have installed cm9 but there are still a lot of bugs. I switched to miui it works but then i had another phone and i havent used my l3 for a long time. Now i found a rooted stock rom that i want to flash but i cant turn my lg l3 on. When i plug it in the lg logo appears but does not turn on. I cant access cwm recovery and flash a rom.
What should i do? I want to test if its a battery problem but i dont have a spare battery. I dont care if it boots or not. I just need cwm recovery to flash.
Thanks in advance guys.
Click to expand...
Click to collapse
Anything happens when connect to computer?
Got Any sollution??
It will stupid to ask now but the same thing happend to me .. I switched to miui it works but then i had another phone and i havent used my l3 for a long time.But now its not turning on ,it just make a sound in pc when connected .Nothing shows in screen of mobile.If got any sollution plss tell me.it will very helpfull cause this was my first smartphone and i don't want to loose.:crying::crying:

[Q] Help needed. Bricked LG G2, when google didn't help!

Good day fellow XDA users!
I've been playing with my old LG G2, and as you could have guessed - bricked it (while trying to instal Android L ROM)
The problem: The phone is not booting further the LG logo.
I've tried:
1. Doing a hard-reset, didn't work. After getting to the hard-reset screen - I double-confirm the reset and then nothing happens (waited for about an hour and a half).
2. Entering download-mode, didn't work. It shows the "download mode" logo but nothing happens.
3. Connecting to PC, fast-boot, adb of LG Tool can't "see" the device.
Any suggestions?
Thanks in advance
Anyone?
Your phone boots in fastboot?..or it's only stuck on LG logo?..if you can boot in fastboot then there are some threads around here about how to recover...but if you are stuck at LG logo i don't know.. I hope somebody more experienced will help you.
Nope, I didn't manage to get it to load fastboot.
skamenetskiy said:
Good day fellow XDA users!
I've been playing with my old LG G2, and as you could have guessed - bricked it (while trying to instal Android L ROM)
The problem: The phone is not booting further the LG logo.
I've tried:
1. Doing a hard-reset, didn't work. After getting to the hard-reset screen - I double-confirm the reset and then nothing happens (waited for about an hour and a half).
2. Entering download-mode, didn't work. It shows the "download mode" logo but nothing happens.
3. Connecting to PC, fast-boot, adb of LG Tool can't "see" the device.
Any suggestions?
Thanks in advance
Click to expand...
Click to collapse
Were you able to resolve your issue? I just had the same thing happen with mine and trying to find a solution.
mguelph said:
Were you able to resolve your issue? I just had the same thing happen with mine and trying to find a solution.
Click to expand...
Click to collapse
Hello, sorry it took some time to answer, but here (original post can be found here http://androidforums.com/threads/he...when-google-didnt-help.900687/#post-6874443):
FIXED!
I followed the steps and it worked!!!
1. http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404 this liknk helped connecting it to PC.
2. http://forum.xda-developers.com/showthread.php?t=2582142 this link helped me flash the partitions, well actually not, because I didn't have a linux machine next to me. So I found this http://forum.xda-developers.com/lg-g2/general/unbrick-lg-g2-qhsusbbulkqualcomm-9006-t2939627, which is really a walk in a park, just download and run the file.
Anyhow, now my phone works!
Special thanks to
iowabowtech

[Q] Bricked my LG G2 need help

Hello XDA-Community
Today i accidently briked my G2 (D802 KitKat 4.4.2). I was flashing it because i wanted to unroot it but during the process an error showed up and my phone was dead.
So i tried to fix it with this method http://forum.xda-developers.com/showthread.php?p=48765620#post48765620 but it didn't worked as planned.
Now i have an G2 which is stuck in a bootloop and i can't even reach the recovery or the download mode and i don't have any custom recovery installed.
Anyone who can help me with this get's an 10€/$ PSC. I can't give more because i dont have any money left (16 years old).
Big thanks to everyone who can help me with this
PS: Sorry for my bad english i'm not a native speaker
While you wait for an answer make sure your phone is kept charged.
Have you tried LG flashtool and your stock ROM?
make sure it's off, hold the VOLUME UP button while plugging it into your computer, and that should get it into download mode.
Next try using the TOT method (google it) and voila!
Yeah the problem is that i can't even reach the download mode and my computer doesn't recognize my phone it's just an qshub device. ;(
I had the same issue bricking my lg g2 and i was stuck with the logo and nothing more not even download mode,recovery etc...
The way i got it to stock was i installed the lg g2 drivers and from there on just flashed it with flashtools kdz and got it workking again i think this shoould help you out just plug your phone and install the drivers and use flashtools
Install this driver then report me back or cap screen device manager to me.I will help you for fee.
https://www.dropbox.com/s/a69s06mkpzao01m/qhsusb_bulk_DRIVER_G2.zip?dl=0

[Q] LG Leon 4G bricked

Hello Guys,
yor are my last hope!
I tried to root my device but there was no working way for it.
So i decided to use this guide (http://forum.xda-developers.com/android/development/root-t-mobile-lg-leon-5-1-1-lollipop-t3194145) to root my phone. I didn't know that this Telekom software is simlocked so i used another guide to unbrick it. Unfortunately it came out that the software i used at this time was the metro pcs version of the stock firmware.
Now i am looking for a working stock firmware cause every german/france software from this pages (http://lg-phone-firmware.com/index.php?id_mod=171) and (http://www.lg-phones.org/category/lg-leon) didn't worked for me.
Every time i tried the 3GCT with Emergency and the cdma with cs_emergency way.
But it always ends in a bootloop with the lg logo and the android symbol then restart and long time LG logo.
I don't understand why Telekom and Metro PCS versions worked but the others don't.
It would be great if you could explain me this.
Greetings
Sven
Hi there! I'm in the same situation. :/ Any help?
I have the same problem too. There's already topic about this, but nobody found solution yet. :/
My god! I have the same BIG problem with LG Leon LTE H340n (C50)! HELP!
Help
Hey guys, I'm a new member so I can't start my own thread so I figured I'd try this out. I bought a LG risio (Leon) off of craigslist and the dude factory reset it when I handed him the cash but now it's asking me for a e-mail or phone number that was previously used with the phone and now I can't get a hold of the guy. Is there any way to get past this situation or am I screwed?
Please don't hate on me for posting this where I did. I just don't have any other options so if someone can help me please do.
Sdh0706 said:
Hey guys, I'm a new member so I can't start my own thread so I figured I'd try this out. I bought a LG risio (Leon) off of craigslist and the dude factory reset it when I handed him the cash but now it's asking me for a e-mail or phone number that was previously used with the phone and now I can't get a hold of the guy. Is there any way to get past this situation or am I screwed?
Please don't hate on me for posting this where I did. I just don't have any other options so if someone can help me please do.
Click to expand...
Click to collapse
This method is USEFUL for your situation & unbricking lg Leon LTE
This method is for ONLY metroPCS
Don't hold me responsible if this method doesn't restore your phone or makes it worse. THERE IS NO WAY TO DOWNGRADE BACK TO ver MS34510B after using this method.
Install
LG United Mobile Driver 3.14.1
LG Flash tool 2014 (build 03/07/2014)
After flash tool installation
1. Remove the battery and put it back in.
2. Hold the Volume Up button (ONLY) while connecting to USB Cable
3. The Volume up button needs to be held until it reaches download mode
4. Open device manager and changed the LGE Mobile USB Serial port to COM 20
5. Open the Flash Tool
6. Select Type: 3GQCT
7. PhoneMode: EMERGENCY
8. KDZ : MS34510D_00.KDZ
9. Click on Normal Flash
10. Click on Clear update registry
11. Country: different country
12. Language: English
13. Click okay and wait for the LG Mobile Support tool to recognize the device. It takes a minute or two but the tool will recognize it. The software starts the extraction and re-boots at %100. You can remove USB cable, your device will boot normally, and the device is no longer stuck in a boot loop.
Files needed:
LG Drivers: https://mega.nz/#!oQV3yS6Y!D2JPtEMfHiAXB5E5jC2lfFH8ZIOVLNhEHju28JtYwfI
LG Flash Tool: https://mega.nz/#!BB8UgKCT!YAdGWfYGXGLiV5arZzeSGGivtLlW-BuiKlv_ci2Xp0Y
MS34510d kdz file: https://mega.nz/#!VNtDCb6C!wotJiiw1CfVNTlpxG3XRnsgiLNtUmzB6zj3tkraNB9s
Lg leon hard brick
I'm having issues with my LG Leon today.I tried to downgrade to v10b in my actual version v10d to Root.I actually tried that but i got problems.When It was 98% stopped and black screen.Everytime now that I restart my smartphone I don't even see the LG logo or nothing just black screen loop but when I do that connected to my computer, I can hear the sound of "recognized" and then "not recognized" and It loops every 15 seconds ~
HELP HELP HELP PLZ
ayoub lg leon said:
I'm having issues with my LG Leon today.I tried to downgrade to v10b in my actual version v10d to Root.I actually tried that but i got problems.When It was 98% stopped and black screen.Everytime now that I restart my smartphone I don't even see the LG logo or nothing just black screen loop but when I do that connected to my computer, I can hear the sound of "recognized" and then "not recognized" and It loops every 15 seconds ~
HELP HELP HELP PLZ
Click to expand...
Click to collapse
Does it have unlocked bootloader? Did you try to enter firmware upgrade mode to flash the correct kdz?
leandeganis said:
Does it have unlocked bootloader? Did you try to enter firmware upgrade mode to flash the correct kdz?
Click to expand...
Click to collapse
yes i try but i cant entre to download mode my lg leon is mt6582 cpu any fix for this probleme i think is hard brick probleme so please help me
ayoub lg leon said:
yes i try but i cant entre to download mode my lg leon is mt6582 cpu any fix for this probleme i think is hard brick probleme so please help me
Click to expand...
Click to collapse
Have you unlocked the bootloader ? Can you access at east to factory reset mode so to wipe data partition?
Lg leon hard brick
leandeganis said:
Have you unlocked the bootloader ? Can you access at east to factory reset mode so to wipe data partition?
Click to expand...
Click to collapse
i unlock bootloader :crying:
no i cant do that my phone is completly dead no download mode no fastboot no recovery any thing but when i conect it to pc it show as a mtk usb port but only 5 second and reconect so i think a scatter file to flash it with sp flash tool please help me help me
YES i unlocked the bootloader

Lg v20 h990ds stuck on bootloop

My Lg H990 ds stuck on bootloop, the only mode that i can get to is fast boot mode .i know only fastboot mode is last hope for my phone alive.
I wants unlock bootloader file for partition install @ fastboot mode .....
Plz help me
What happens when you try to get into bootloader?
Sent from my HTC U11 using Tapatalk
Nightshadow931 said:
What happens when you try to get into bootloader?
Sent from my HTC U11 using Tapatalk
Click to expand...
Click to collapse
Thanks for reply,
I have a LG v20 H990DS international Model use in KSA. Every think is working good after I factory reset then it’s started the boot loop, shows Lg boot screen and restart again and again.
I try to enter into Download mode (Vol+then plug in to pc) but say Download mode please wait then continuous looping the lg logo. The only mode that I can get to is fast boot. Even doing a factory reset does not work.
I know only Fastboot mode is last hope for my phone alive.
its only solution re- partition the device and install files through fastboot mode but fist erase laf.img with help of fastboot mode its say device is lock cannot erase.
so how i unlock device ?
i also check LG unlock bootloader page but my device is not in listed......
so what i can do ?
plz help me
Were you rooted before? Bootloader unlocked, TWRP?
Sent from my HTC U11 using Tapatalk
Nightshadow931 said:
Were you rooted before? Bootloader unlocked, TWRP?
Sent from my HTC U11 using Tapatalk
Click to expand...
Click to collapse
No rooted this device ..... problem start when i factory reset the device then it’s started the boot loop......
Aman gee said:
Thanks for reply,
I have a LG v20 H990DS international Model use in KSA. Every think is working good after I factory reset then it’s started the boot loop, shows Lg boot screen and restart again and again.
I try to enter into Download mode (Vol+then plug in to pc) but say Download mode please wait then continuous looping the lg logo. The only mode that I can get to is fast boot. Even doing a factory reset does not work.
I know only Fastboot mode is last hope for my phone alive.
its only solution re- partition the device and install files through fastboot mode but fist erase laf.img with help of fastboot mode its say device is lock cannot erase.
so how i unlock device ?
i also check LG unlock bootloader page but my device is not in listed......
so what i can do ?
plz help me
Click to expand...
Click to collapse
hi dude,just wondering if your problem still exist?
I have the same problem,last night my LG V20 suddenly bootloop,I didn't do anything like flashing,root,unlock etc,since I don't know how to..just want to use this phone as daily device..
I read here in xda bout how to flash the stock firmware I understand a little bit how to flash it but everytime I plug the phone (vol+ and plug to PC) it show "downloading mode" or something,then the phone keep bootlooping to LG logo and this software LGUP doesn't recognize my phone..could be a driver problem?I believe I have download and install any LG V20 I can find here in xda..can you help me please?how to connect the phone to the PC so LGUP can recognize the phone?
sorry for this stupid question and my bad english
Galon123 said:
hi dude,just wondering if your problem still exist?
I have the same problem,last night my LG V20 suddenly bootloop,I didn't do anything like flashing,root,unlock etc,since I don't know how to..just want to use this phone as daily device..
I read here in xda bout how to flash the stock firmware I understand a little bit how to flash it but everytime I plug the phone (vol+ and plug to PC) it show "downloading mode" or something,then the phone keep bootlooping to LG logo and this software LGUP doesn't recognize my phone..could be a driver problem?I believe I have download and install any LG V20 I can find here in xda..can you help me please?how to connect the phone to the PC so LGUP can recognize the phone?
sorry for this stupid question and my bad english
Click to expand...
Click to collapse
Hardware issue, contact LG about warranty return
Sent from my LG-H910 using XDA Labs
cnjax said:
Hardware issue, contact LG about warranty return
Sent from my LG-H910 using XDA Labs
Click to expand...
Click to collapse
really?oh man..I expect to solve this myself,but if it's hardware I have to go to LG then
oh,another thing if I remove the battery then put it back again,plug the charger,it won't charge,just bootloop again..I guess it's really hardware issue,thanks for your reply sir
Galon123 said:
hi dude,just wondering if your problem still exist?
I have the same problem,last night my LG V20 suddenly bootloop,I didn't do anything like flashing,root,unlock etc,since I don't know how to..just want to use this phone as daily device..
I read here in xda bout how to flash the stock firmware I understand a little bit how to flash it but everytime I plug the phone (vol+ and plug to PC) it show "downloading mode" or something,then the phone keep bootlooping to LG logo and this software LGUP doesn't recognize my phone..could be a driver problem?I believe I have download and install any LG V20 I can find here in xda..can you help me please?how to connect the phone to the PC so LGUP can recognize the phone?
sorry for this stupid question and my bad english
Click to expand...
Click to collapse
The partition of device is damage its only solution re- partition the device if device is not locked then you install files through fastboot mode erase laf.img in fastboot mode, if device locked then msg show device is lock cannot erase.....
Fastboot mode is last hope for phone alive if you have bootloader unlocked file then try.......
Aman gee said:
The partition of device is damage its only solution re- partition the device if device is not locked then you install files through fastboot mode erase laf.img in fastboot mode, if device locked then msg show device is lock cannot erase.....
Fastboot mode is last hope for phone alive if you have bootloader unlocked file then try.......
Click to expand...
Click to collapse
I guess mine is still locked because I really never touch/do anything with this phone.
anyway,to enter fastboot mode is vol- then connect the phone to PC right?I did that but nothing happen,the phone just bootloop again..I guess this is really hardware issue
Galon123 said:
I guess mine is still locked because I really never touch/do anything with this phone.
anyway,to enter fastboot mode is vol- then connect the phone to PC right?I did that but nothing happen,the phone just bootloop again..I guess this is really hardware issue
Click to expand...
Click to collapse
First you install LG driver @ pc ,remover battery >> plug in USB cable at pc >> instr battery power + Vol- press then fastboot window display.............................................what your model of LG ???
Aman gee said:
First you install LG driver @ pc ,remover battery >> plug in USB cable at pc >> instr battery power + Vol- press then fastboot window display.............................................what your model of LG ???
Click to expand...
Click to collapse
I did that but the phone not display fastboot,only lg logo and then bootloop again to LG logo,the driver I install is LGMobileDriver_WHQL_Ver_4.2.0 the model is F800S.
Galon123 said:
I did that but the phone not display fastboot,only lg logo and then bootloop again to LG logo,the driver I install is LGMobileDriver_WHQL_Ver_4.2.0 the model is F800S.
Click to expand...
Click to collapse
Is Lg v20 phone have ??
Galon123 said:
I did that but the phone not display fastboot,only lg logo and then bootloop again to LG logo,the driver I install is LGMobileDriver_WHQL_Ver_4.2.0 the model is F800S.
Click to expand...
Click to collapse
The F800 are korean models

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