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[Q] Can only boot by plugging charger????

Hi
Can anyone help please? Also, are there anyone having similar issue.
Issue: Pressing the power button is not starting my device. In order to power on I have to connect charger (not usb with PC) and then press power button. What I have noticed is that once I switch off my phone it gets in to "emergency/recover mode". I came to this conclusion because after I switch the phone off, take battery out and put back in and then connect usb cable with my PC. I can see OMAP driver loads and also in the PC's Device Manager I am able to see LG CDMA.... under "ports".
It was not like this until i started several attempts to flash baseband.
Sequence of actions
Here is the sequence of actions I went through and end up having my phone at this stage
1. Followed the procedure (http://forum.xda-developers.com/showpost.php?p=17177547&postcount=2) step by step using LG flash tool. The application was constantly crashing (PC is running on XP pro). Before flashing baseband I flashed GB hence I lost radio.
2. To bring back my radio I had to reflash 2.2 following the same procedure (emergency recovery method) in the link given in baseband flashing.
3. After finishing the recovery flash I could not start my phone using power button. I started thinking that I bricked my phone. I left it for a day. Then I thought that the battery is fully drained and is the reason for not powering on. When I connected charger I started seeing LG logo and also the phone was started. I was more excited and happy that my phone was not bricked. After this point I need charger connected everytime when i want switch on my phone. so, I am scared to swtich off my phone unless I have charger handy to me.
4. I removed all the application (LG flashing related) including LG drivers I installed before. Now I reinstalled all the necessary app and drivers for baseband flashing. This time baseband flashing was done successfully (though at 22%). Then I flashed GB rom and everything works fine.
The only issue i have is, I can not switch on my phone without charger connected.
If anyone knows solution please help me.
Thanks in advance.

http://forum.xda-developers.com/showthread.php?t=1331390
I used to have the same problem,
I think its a problem about boot,
when I use lg tools it always gives error, because phone wont boot without charger, so it cant continue upgrading
I try flasing original kdz file from lg flash tool, and use emergency rescue mode,
I dont know but it somehow repair the boot
you can fix permissions before you use lg tools.
what error do you have while using lg tool?
can you post the screen capture

nurikarakaya said:
http://forum.xda-developers.com/showthread.php?t=1331390
I used to have the same problem,
I think its a problem about boot,
when I use lg tools it always gives error, because phone wont boot without charger, so it cant continue upgrading
I try flasing original kdz file from lg flash tool, and use emergency rescue mode,
I dont know but it somehow repair the boot
you can fix permissions before you use lg tools.
what error do you have while using lg tool?
can you post the screen capture
Click to expand...
Click to collapse
After i uninstalled all the drivers (incl. LG tools) and reinstalled and I am not seeing any more error while using LG tools. I even flashed GB baseband twice but no use. The link you have given explains the same issue I have.

I think you have to install froyo version of baseband and firmware first,
then try
http://forum.xda-developers.com/showthread.php?t=1186406
STUCK AT LG LOGO:
with factory reset!
1) Start LG Mobile update
2) Power off your phone without USB cable
3) Connect the USB cable and wait for the LG logo and the annimation battery
4) Pressing Vol.up + power 6-7 seconde wait for the LG logo and The screen turns off
5) Again pressing Vol.up + power 6-7 seconde and wait until the drivers are installed (LG Mobile update detects your phone and the screen is always off)
-If this is the first time the driver install redone the item 5).
6) Click on User/Support then emergency mode, insert your IMEI and click on check
7) Wait for download and upgrading (15/20 min)

Questions or Problems Should Not Be Posted in the Development Forum
Please Post in the Correct Forums and Read THIS
Moving to General

lufc said:
Questions or Problems Should Not Be Posted in the Development Forum
Please Post in the Correct Forums and Read THIS
Moving to General
Click to expand...
Click to collapse
Thanks. will stick to the rule in future..

nurikarakaya said:
I think you have to install froyo version of baseband and firmware first,
then try
http://forum.xda-developers.com/showthread.php?t=1186406
STUCK AT LG LOGO:
with factory reset!
1) Start LG Mobile update
2) Power off your phone without USB cable
3) Connect the USB cable and wait for the LG logo and the annimation battery
4) Pressing Vol.up + power 6-7 seconde wait for the LG logo and The screen turns off
5) Again pressing Vol.up + power 6-7 seconde and wait until the drivers are installed (LG Mobile update detects your phone and the screen is always off)
-If this is the first time the driver install redone the item 5).
6) Click on User/Support then emergency mode, insert your IMEI and click on check
7) Wait for download and upgrading (15/20 min)
Click to expand...
Click to collapse
Thanks. I will try it tonight or will wait for official GB release then i can do the this emergency update.

[Q] LG G2 Bricked, help please :(

Okay guys, this used to be a "Omg i bricked my phone help me" question thread. But I unbricked my phone and now its amaaazing
So if u got the same problem here u go:
First lets analyze the problem:
I got LG G2 d802 (international)
Rooted it with IORoot25r
I got TWRP 2.7 on it
I entered the recovery mode from ROM manager
I wiped all data, but forgot that no rom was on my device.
So the device froze at LG logo.
When trying to reboot, the device would just freeze again there.
SO HERE IS WHAT I DID:
Device was on LG logo
I pressed Power ON/OFF button and Volume Down button (hold it)
I released them when the mobile restarted and I saw the LG logo again.
Then I immidiatly repressed and hold the power ON/OFF button and Bolume Down button. This will cause the device to enter RECOVERY MODE.
In the TWRP (Team Win recovery Project) menu (the TWRP menu is the recovery mode), I pressed on turn system off (not sure where it is, but I think it in the Reboot section)
So the device is OFF atm.
I kept pressing volume down and then I plugged the usb stick in, this will cause the device to go in DOWNLOAD mode.
Once in that mode, all you have to do is follow the thread that was linked by scholastova underneath (first reply).
(PS -> since I have less than 10 posts, i can't post links )

TheGreatWhitePolarBearKin said:
Hello everybody,
so I got a lg g2 international version (d802). I rooted my phone with IOroot25r1.
I installed rom manager and updated the CWM. Later I wanted to download Omnirom, in the thread it said that TWRP was succesfull and CWM wasnt tested. (THREAD: http://forum.xda-developers.com/showthread.php?t=2668564)
So I searched on the internet and I downloaded the apk called Autorec. It automatically installs TWRP.
So i went into the recovery mode and wiped everything I could. After that I noticed that I forgot to put the ROM on the phone (retarded me).
So i tried to reboot, because the phone wasn't showing up on my PC. ABD didnt find the device either.
(I said SO alot of times, sorry for that )
I am now stuck at booting. When booting I see the LG logo and the LED turning colors but it won't start, neither will it turn off, it will just restart if I keep pressing the power on/off button on the back. Holding all buttons will get me into a menu where it gives me a couple options:
Off
On
Cancel
Answer Call
Stop Alarm
I can't get to answer Call or Stop Alarm. And if i press Off, On or Cancel it will simply freeze and stay there forever. Then all i can do is hold off-on button again and get back to the non-stop lg logo.
I cant enter recovery or the phone, neither does it show up in abd.
HELP ME PLEASE. I HAVE TRUST IN YOU
Click to expand...
Click to collapse
Just visit this thread http://forum.xda-developers.com/showthread.php?t=2432476
Follow those steps and you'll be okay!

scholastova said:
Just visit this thread http://forum.xda-developers.com/showthread.php?t=2432476
Follow those steps and you'll be okay!
Click to expand...
Click to collapse
I tried the first step with the KDZ, didn't work The program gives the error "plug phone in". Basically it doesn't recognise the phone.
Also I think I kinda know the situation now. I have 0 roms and 0 backups. ABD sideload won't work (no idea why). My only chance is mounting, Hope that will work. But is there any other method? (PS i also tried the .TOT method, didnt work also).

scholastova said:
Just visit this thread http://forum.xda-developers.com/showthread.php?t=2432476
Follow those steps and you'll be okay!
Click to expand...
Click to collapse
Omg, I am not the brightest person xD
I forgot to be on download mode
ANYWAY It worked, wohoo thank you mate <33333

Can you not pull out external SD put rom on it from pc and then flag from recovery?

TheGreatWhitePolarBearKin said:
Omg, I am not the brightest person xD
I forgot to be on download mode
ANYWAY It worked, wohoo thank you mate <33333
Click to expand...
Click to collapse
That's great! Im glad to hear that.

Can't enter download mode on T-Mobile LG G2 with stock 4.4.2

Hey,
I'm trying to root my T-Mobile LG G2 with stock 4.4.2, but the it just refuses to enter download mode. I've tried the standard method of entering download mode (powering down the phone, holding down the volume button, plugging in the USB cable from my computer), but only the LG logo appears on screen, then the battery percentage appears on screen, and then the phone begins to charge. I've tried using different USB cables and different PCs, but nothing seems to work.
Is there anything I'm doing wrong here? Any extra steps that need to be taken?
Any help would be greatly appreciated!

Try holding up and power and let go of power when the logo shows then push the and hold power again.

alil2cul4u said:
Try holding up and power and let go of power when the logo shows then push the and hold power again.
Click to expand...
Click to collapse
Do you mean hold power and volume up, plug phone in, let go of power and keep holding volume up, and then hold power and volume up again? I tried that, and the LG logo splashes on screen, disappears, splashes again, and then the screen goes black and the LED notification light blinks red. It doesn't pulse, like when it's charging, but it blinks a steady beat. It stops blinking and the phone boots up when I let go of the power and volume up buttons...

STAR8UCK said:
Do you mean hold power and volume up, plug phone in, let go of power and keep holding volume up, and then hold power and volume up again? I tried that, and the LG logo splashes on screen, disappears, splashes again, and then the screen goes black and the LED notification light blinks red. It doesn't pulse, like when it's charging, but it blinks a steady beat. It stops blinking and the phone boots up when I let go of the power and volume up buttons...
Click to expand...
Click to collapse
When I went into download mode, I only held the Volume Up button and plugged in the USB to the pc. I didn't hold power.

Same problem here ! Recieved d802 v20f OTA and after the update my phones refuses to entering download mode.

STAR8UCK said:
Hey,
I'm trying to root my T-Mobile LG G2 with stock 4.4.2, but the it just refuses to enter download mode. I've tried the standard method of entering download mode (powering down the phone, holding down the volume button, plugging in the USB cable from my computer), but only the LG logo appears on screen, then the battery percentage appears on screen, and then the phone begins to charge. I've tried using different USB cables and different PCs, but nothing seems to work.
Is there anything I'm doing wrong here? Any extra steps that need to be taken?
Any help would be greatly appreciated!
Click to expand...
Click to collapse
head1shot said:
Same problem here ! Recieved d802 v20f OTA and after the update my phones refuses to entering download mode.
Click to expand...
Click to collapse
I'm on rooted 20e with custom recovery and I entered download mode no problem. Make sure you're pressing only the Volume Up button when plugging in the USB connected to the computer and hold it until you enter download mode.

did anyone ever get it to go into download mode , I'm trying to get into download mode on my wifes phone to flask 4.2.2 so I can root

Damented said:
did anyone ever get it to go into download mode , I'm trying to get into download mode on my wifes phone to flask 4.2.2 so I can root
Click to expand...
Click to collapse
I'm having the same problem with my LG G2, I can't get into download mode. I've tried holding the power up button and plugging in a USB cable but my phone shows the LG logo and then starts charging the battery, I'm on stock rom, 4.4.2, no custom recovery. Is there a fix for this?

I had a similar problem with my T-Mobile LG G2 where I was rooted and accepted an OTA. It broke root and I couldn't get IOroot or Stumproot to work. Went to flash a downgrade and found the phone wouldn't go into download mode. It was NOT bricked. I finally tried playing around with the LG Mobile Support Tool (B2CAppSetup.exe). Of course it detected that my phone already had the latest firmware from T-Mobile, but then I clicked Options>Upgrade Recovery.
It downloaded for a while then I noticed it had put my phone into download mode (it said "Rooted" in red letters at the bottom). Then it flashed the same firmware over and I immediately tested, it entered download mode right away. But I didn't end up needing that as Stumproot was able to brute force it now after the recovery flash.
Anyway, I couldn't find an answer anywhere else. Most results also have a bricked phone, but that wasn't my issue. This solved my problem and maybe it could work for others.

ratchet26 said:
I had a similar problem with my T-Mobile LG G2 where I was rooted and accepted an OTA. It broke root and I couldn't get IOroot or Stumproot to work. Went to flash a downgrade and found the phone wouldn't go into download mode. It was NOT bricked. I finally tried playing around with the LG Mobile Support Tool (B2CAppSetup.exe). Of course it detected that my phone already had the latest firmware from T-Mobile, but then I clicked Options>Upgrade Recovery.
It downloaded for a while then I noticed it had put my phone into download mode (it said "Rooted" in red letters at the bottom). Then it flashed the same firmware over and I immediately tested, it entered download mode right away. But I didn't end up needing that as Stumproot was able to brute force it now after the recovery flash.
Anyway, I couldn't find an answer anywhere else. Most results also have a bricked phone, but that wasn't my issue. This solved my problem and maybe it could work for others.
Click to expand...
Click to collapse
This was my exact problem! Your solution worked perfectly, I was beating my head against the wall trying to find a way around.
Thanks so much !

ratchet26 said:
I had a similar problem with my T-Mobile LG G2 where I was rooted and accepted an OTA. It broke root and I couldn't get IOroot or Stumproot to work. Went to flash a downgrade and found the phone wouldn't go into download mode. It was NOT bricked. I finally tried playing around with the LG Mobile Support Tool (B2CAppSetup.exe). Of course it detected that my phone already had the latest firmware from T-Mobile, but then I clicked Options>Upgrade Recovery.
It downloaded for a while then I noticed it had put my phone into download mode (it said "Rooted" in red letters at the bottom). Then it flashed the same firmware over and I immediately tested, it entered download mode right away. But I didn't end up needing that as Stumproot was able to brute force it now after the recovery flash.
Anyway, I couldn't find an answer anywhere else. Most results also have a bricked phone, but that wasn't my issue. This solved my problem and maybe it could work for others.
Click to expand...
Click to collapse
Aaaaaaaahhh!!! u are my hero man!, ive been searching everywere and tried everything, im quite new to lg mobile phones, ive used apple and samsung before, but this easy and simple method worked for me, finally ive entered download mode again! :good:

I tried but mine says no problems to fix or somethibg like that
Sent from my LG-D801 using XDA Free mobile app

Thank you! I was pulling my hair out too! Out of desperation I took the g20 update after my phone had gotten real unsteady and rebooting constantly. Like the op I lost root and couldn't get into dl mode to save my life.
Sent from my LG-D801 using XDA Free mobile app

i still cant go to download mode...i tried all above... :crying:

ratchet26 said:
I had a similar problem with my T-Mobile LG G2 where I was rooted and accepted an OTA. It broke root and I couldn't get IOroot or Stumproot to work. Went to flash a downgrade and found the phone wouldn't go into download mode. It was NOT bricked. I finally tried playing around with the LG Mobile Support Tool (B2CAppSetup.exe). Of course it detected that my phone already had the latest firmware from T-Mobile, but then I clicked Options>Upgrade Recovery.
It downloaded for a while then I noticed it had put my phone into download mode (it said "Rooted" in red letters at the bottom). Then it flashed the same firmware over and I immediately tested, it entered download mode right away. But I didn't end up needing that as Stumproot was able to brute force it now after the recovery flash.
Anyway, I couldn't find an answer anywhere else. Most results also have a bricked phone, but that wasn't my issue. This solved my problem and maybe it could work for others.
Click to expand...
Click to collapse
After clicking Options>Upgrade Recovery it said "No upgrade items to fix." Thank you all for what you do at XDA.

verizonwiz said:
After clicking Options>Upgrade Recovery it said "No upgrade items to fix." Thank you all for what you do at XDA.
Click to expand...
Click to collapse
So this program no longer works and I'm having the same problem. I tried to do this with the LG suit which replaced lg mobile support. It just keeps saying I'm already on the latest firmware. Can anyone help?

[Q&A] [V1.3][Tool][All-In-One] Flash Recoveries , Downgrade , Bootloaders ...

Q&A for [V1.3][Tool][All-In-One] Flash Recoveries , Downgrade , Bootloaders ...
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.
Before posting, please use the forum search and read through the discussion thread for [V1.3][Tool][All-In-One] Flash Recoveries , Downgrade , Bootloaders .... If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
Thanks for understanding and for helping to keep XDA neat and tidy!

im having the same issue
culson_35 said:
Using this tool I could not get in fast mode ... and my phone is using the official ICS rom v30b .... help
LG P925 ICS 3D
Click to expand...
Click to collapse
could u tell me what u did to c the silver lg screen all i get is waiting for device and a black screen with the bottom button lit up

ryanrickard85 said:
could u tell me what u did to c the silver lg screen all i get is waiting for device and a black screen with the bottom button lit up
Click to expand...
Click to collapse
Have you installed OMAP drivers properly?
Open Device Manager on your PC and search for OMAP4430 (it connects and disconnects continuously) so, quickly double click on it and chose update driver. Select browse my computer for driver software > then go to usb_drv_windows folder in OS_HACKING tool then press Next. Wait till the driver installs.
After that, run the AIO Tool and follow onscreen instructions. You should now be able to enter Fastboot mode and flash your phone.

Dear Bro!
I've flashed, unbrick, made my Lg p920 dualboot several times before but now I have problem and need u advice.
Yesterday, when I was playing a game it suddenly turn off, and turn on to the lg logo and go off. At the first time I just think its the error came from the game so I tried to press power button to turn it on but no success.
After awhile I plug power cable in and the phone turned on and boot smoothly in to the ICS, but this time I realize that power button is not function anymore.
Up to now, My phone is:
Power button dont work.
If I want to turn it on I must plug the power cable in and It boot completely to the ICS(when I put in battery the phone is wake up and boot to lg logo and go off).
I tried to install Omap driver several time but no success, There isnt Lg United Mobile port in device manager to change the port to com41.
I cant boot in to flashmode to flash but can go to TWRP (via a software in android - restart to TWRP option)
My power button physically situation is good (I mode build.pro to wake my phone up by camera button 2 years ago and it work well up to now with no problem) Therefore, I think the problems should be errors in bootloader or kernel , xloader so I think if I could flash them via TWRP may be solve.
Could u please help me?
---------- Post added at 03:46 AM ---------- Previous post was at 03:43 AM ----------
Dear Bro!
I've flashed, unbrick, made my Lg p920 dualboot several times before but now I have problem and need u advice.
Yesterday, when I was playing a game it suddenly turn off, and turn on to the lg logo and go off. At the first time I just think its the error came from the game so I tried to press power button to turn it on but no success.
After awhile I plug power cable in and the phone turned on and boot smoothly in to the ICS, but this time I realize that power button is not function anymore.
Up to now, My phone is:
Power button dont work.
If I want to turn it on I must plug the power cable in and It boot completely to the ICS(when I put in battery the phone is wake up and boot to lg logo and go off).
I tried to install Omap driver several time but no success, There isnt Lg United Mobile port in device manager to change the port to com41.
I cant boot in to flashmode to flash but can go to TWRP (via a software in android - restart to TWRP option)
My power button physically situation is good (I mode build.pro to wake my phone up by camera button 2 years ago and it work well up to now with no problem) Therefore, I think the problems should be errors in bootloader or kernel , xloader so I think if I could flash them via TWRP may be solve.
Could u please help me?

XDA member Zogu made a thread quite a while ago. Here it is:
http://forum.xda-developers.com/showthread.php?t=2190261
There you will find Wkpark's bootloader as a flashable zip that you can flash in TWRP. You said that you are an experienced user so I take it that you can also find and flash a kernel compatible with your ROM.
To be honest, from your description, I don't think any of the above will help you (but you can try, if you want). I believe that your power button is stuck to "pressed" state. If you could spray it with some contacts cleaner while repeatedly pressing and releasing it, you might get it to work again.

won't get into fastboot
hay i have GB and i want to install wkparks bootloader , but the problem i couldn't get into fastboot i had fallowed the guide but at the end it dosn't show silver LG but the touch buttons is on and when trying to flash the bootloader just show waiting for device after selecting "flash bootloaders" , i'm on win7 64bit and using v1.3 .
photos in attachments shows what i get when trying to install the bootloader
so any help i'll by pleasured

Hi guys
Does anyone know what is the best course of action to revive an lg p920 running stock ICS and died after twrp 2.3.3.0 was flashed via twrp manager from the market.
The screen went black and phone completely dead now.
I just ordered a factory cable on eBay and wondering whether to flash kdz or is there another fix that I can flash to revive it?
Cheers..

Solved
Even with factory cable, windows 10 PC was my problem.
I flashed kdz on a different PC running windows 7 and all is working fine.

Lg g Stylo, "no command" please help me!

Please guys I need your help!
Phone model: Lg G Stylo h631 T-Mobile version.
Today I was using my phone and after finishing a call, my phone started to update itself. Then I received a error message. After that, I get stuck with a dead android guy on the screen, and I get the message "no command". I try Different combinations of buttons to solve this problem: Volume Down + Power release and then press the buttons again went the LG logo appear and have no luck. Then I try Volume Up + Power, also have no luck. I think I try almost every possible combination an nothing is working.
If anyone has any idea how to solve this issue please help me. Any help would be appreciated.
(Sorry for my bad English)

Make sure you download or have downloaded and installed the LG drivers from the LG website or any other reliable source or your phone will not be able to recover.
Unplug the phone, take out the battery and once the phone is completely off, replace the battery. Keep the phone powered off and unplugged. Plug a data capable (the usb that came with the phone is best) usb into a PC. Press the VOLUME UP button and HOLD it WHILE plugging the usb into your phone, (The PC should already be connected before plugging in the phone) continue to hold the VOLUME UP button until you pass the LG splash screen and you should then be in DOWNLOAD MODE. From there you can reflash the stock ROM that came with the phone. The stock ROMs are pretty easy to find here on XDA.
If you don't know what flashing a ROM is or means then XDA has plenty of guides for that as well. To return to stock you will need the LG Flash Tool or LG UP depending on which version you want to flash. Marshmalllow uses the LG UP program and Lollipop uses the LG Flash Tool. You can find guides and all the tools\software you will need to fix your phone right here on XDA or a little Google searching.