D800 stuck in blinking LED after installing wrong rom version - G2 Q&A, Help & Troubleshooting

hi,
I want to tunnig my lg g2 but i choose wrong rom version... I install rom for D802 but he have got D800...
Phone won't, has only blinking LED (blue/green) and when plug in into pc stable red led. LCD doesnt turn on... my pc see LGE Mobile USB Serial Port. Please, help me

You have to flash your mobile with correct rom.
Turn your phone completely off, then Turn it on by press vol down + power button then you will see download mode >> FIRMWARE UPGRADE screen then follow this method "How to go back to stock"
http://forum.xda-developers.com/showthread.php?t=2432476

I'll try but i still nothing see on the screen and I'm not sure if the phone starts in download mode. is it some way to check it without screen ?

szop44 said:
I'll try but i still nothing see on the screen and I'm not sure if the phone starts in download mode. is it some way to check it without screen ?
Click to expand...
Click to collapse
connect data cable with your G2 and PC.
the press voulme down + power button at the same time.

I've get DOWNLOAD FAIL...
http: // i.imgur.com/1dKb0oq.png

Related

L7 P700 bricked with first version of custom kernel... please help.

I have an p700 with cm10( last version ), cmw touch last version, crossbreeder and first version of custom kernel (without oc). Run perfectly until yesterday. I intended to flash new kernel (V4). Battery was at 9 percent full. Reboot in recovery mode and... shock ... black screen. My phone is dead. Nothing... no power, no joy....
Thank you for help...
Sent from my Galaxy Nexus using Tapatalk 2
did your charge it? did it boot? can you enter recovery or emergency?
and why did you flash with only 9%?!?
h4x0r007 said:
did your charge it? did it boot? can you enter recovery or emergency?
and why did you flash with only 9%?!?
Click to expand...
Click to collapse
From my experience with p500 (optimus one) 9% battery it more then enough for flash an kernel ... but it seems that 9% was not for real (first version of custom kernel has problem with battery status). Anyway ... after I downloaded the new kernel (v4), from reboot menu (cm10) I gave the reboot recovery command ... "Rebooting now" ... and ... instead of recovery mode, the phone was powered off. So I never got to flash ... Now it's dead, does nothing ... No power (with or without battery and the power cord plugged in), no recovery mode, no emergency mode, no charging.
I used original charger (0,75 A), after that an Samsung charger (1 A), after that an Logitech charger (1.5A).
I tryed to charge with my laptop from USB 2.0 port and 3.0 port, and with my desktop computer ( USB 2.0, 3.0 )... All I've got is THE BIG NOTHING.
Thank you for replay...
It just happen to Me..!
Recently it works fine and I did nothing..
Battry on 66%, and try to refresh the system via reboot.
Few seconds, screenlight turn off.
I've keep waiting. it usualy showing LG logo after 10seconds.
But nothing happen.
Try to power on and also try CMW shortcut.
It still blackscreen, no vibrate, no light.
Is there a way out of here? or any solutions?
:sad:
gefademe2d said:
It just happen to Me..!
Recently it works fine and I did nothing..
Battry on 66%, and try to refresh the system via reboot.
Few seconds, screenlight turn off.
I've keep waiting. it usualy showing LG logo after 10seconds.
But nothing happen.
Try to power on and also try CMW shortcut.
It still blackscreen, no vibrate, no light.
Is there a way out of here? or any solutions?
:sad:
Click to expand...
Click to collapse
Unfortunately, the only way to bring it to life is JTAG. I paid ~ 35Euro for JTAG-ing.
damn
damn i want cm10 too, bet im to scared with bootloader unlocking etc after reading posts...
Its happend to me too and i found a way to get out there
Tip: NEXT TIME DO NOT INSTALL ANY KERNEL!!!
This is the solution:
1. Download LG Optimus L7 USB Driver for Windows | Mac
Download official LG Optimus L7 stock firmware from this page. The file would be a .kdz file. Download the appropriate firmware according to your network provider and country.
3. Download KDZ updater and install it on your computer.
4.The zip file has a Microsoft XML parser, make sure you run it as an administrator and restart your PC. This will solve the wparam 100 and lparam 6 issue mentioned in a comment below.
5.The next step is to put your phone into emergency mode. To do this, remove the battery of your phone and re-insert it (don’t turn it on). Press and hold Volume Up button and Volume Down button. While you are pressing the two buttons, press the Power button. So now, you must be pressing all three buttons together. See this video
6.Your phone will boot into emergency mode and you should see a yellow screen with Emergency mode written on it.
7.Pick up the USB Cable and connect your phone to the computer via the USB Cable.
8.Run KDZ updater as Administrator.
9.Choose the following options in KDZ Updater: Type: 3GQCT Phone Mode: DIAG and KDZ file is the one you downloaded in step 3.
*image:
http://www.hackmyandroid.com/wp-content/uploads/2012/09/Root-LG-P350-LG-Update.png
10.Re-check with the image above and ensure that you have the appropriate settings on the KDZ updater.
11.Take a deep breath and click on “Launch Software Update” button.
12.This process is usually long. It take quite a long time for the firmware to be flashed on your phone.
13.If everything goes well, you will see “Finished” written in the log screen and your phone will change to switched off mode from Emergency mode.
14.The next time you turn it on, your phone will take a lot of time to reboot. Stay Cool! its normal.
david08 said:
Its happend to me too and i found a way to get out there
Tip: NEXT TIME DO NOT INSTALL ANY KERNEL!!!
This is the solution:
1. Download LG Optimus L7 USB Driver for .......
Click to expand...
Click to collapse
I knew this method ... but in my case, the phone does not respond to any command.
heruur2 said:
I knew this method ... but in my case, the phone does not respond to any command.
Click to expand...
Click to collapse
When you turn on your phone that shows you the LG logo?
david08 said:
When you turn on your phone that shows you the LG logo?
Click to expand...
Click to collapse
It has no power...
heruur2 said:
It has no power...
Click to expand...
Click to collapse
Connect the device into electricity and not to your computer.
For 1 hour and try again
david08 said:
Connect the device into electricity and not to your computer.
For 1 hour and try again
Click to expand...
Click to collapse
Thank you for help...
BUT...
I try already for many hours, with 3 type of chargers... (0.75A - original charger, 1A and 1.5A)...
As i told in my previews post ... Now it works ... After JTAG-ing...
david08 said:
Its happend to me too and i found a way to get out there
4.The zip file has a Microsoft XML parser, make sure you run it as an administrator and restart your PC. This will solve the wparam 100 and lparam
Click to expand...
Click to collapse
It is not possible to run that file as an administrator. I tried on 3 different systems: Win 8x64, Win 7x64 and Win 7x32. I have a logo stucked but after few seconds it plays the sound and logo does it's animation then same static logo and then it stucks. Is there any solution besides j-taging? Does warranty service cover this as a defect and repair for free?
Thanks
Kastuvasesi said:
It is not possible to run that file as an administrator. I tried on 3 different systems: Win 8x64, Win 7x64 and Win 7x32. I have a logo stucked but after few seconds it plays the sound and logo does it's animation then same static logo and then it stucks. Is there any solution besides j-taging? Does warranty service cover this as a defect and repair for free?
Thanks
Click to expand...
Click to collapse
Try hard reset :
1. When the phone is switched off, press and hold the Volume down key + Power key with your left hand.
2. When the LED on the bottom of the phone lights up, touch and hold the Menu key with your right hand. You need to do this immediately, before the screen displays the LG logo. Make sure your left hand is still holding the Volume down and Power keys.
Then release the power key at vibration time.
3. When the LG logo is displayed on the screen, continue to hold the keys for around 2 seconds, and then release all
them at the same time, before the LG logo disappears.
Leave your phone for at least a minute while the hard reset is carried out. You will then be able to switch your phone back on.
Caution: If you perform a hard reset, all user applications and user data will be deleted. This cannot be reversed.

[Q] lg g2 stuck in download mode

Hi, my LG G2 is in download mode and I cannot get out. I have tried LG Flash to flash stock kdz but it didn't work. I have used ODIN but phone is not recognized and there is no reaction. Please help me, how do I reboot/get out of it?
Finwe1024 said:
Hi, my LG G2 is in download mode and I cannot get out. I have tried LG Flash to flash stock kdz but it didn't work. I have used ODIN but phone is not recognized and there is no reaction. Please help me, how do I reboot/get out of it?
Click to expand...
Click to collapse
Try holding the power button until the screen turns off, this will force reboot the phone.
If this doesn't work, first download and install the correct USB drivers from the LG support page. Then download the official LG Mobile Support Tool from the same page. Once installed and your phone still in download mode, open the LG Mobile Support Tool. Wait fot the program to recognize the phone, then go to 'Options' in the upper right and select 'Upgrade Recovery'. This will download and install the latest available stock rom on your phone.
Hope this fixes your problem!:fingers-crossed:
To reboot out of it hold down the power button until it vibrates then let go, if you want to shut it off just hold it and when it vibrates keep holding it for another 5 seconds or so.
hddr3 said:
To reboot out of it hold down the power button until it vibrates then let go, if you want to shut it off just hold it and when it vibrates keep holding it for another 5 seconds or so.
Click to expand...
Click to collapse
Yea I did that but when I turn it back on, it goes back to download mode without me even pressing the buttons

S5 SM-G900F Soft-/ Hardbrick?

Hi all,
I've tried to downgrade my S5 from most recent Kies lolipop to kitkat (G900FxxxANCE from sammobile). After odin pass the phone reboots (at leas it seems so) but does not show up on screen - so screen is black and no chance to do anything - the blued led comes up.
I tried some tutorials without success (last try: remove battery - powerbutton - wait). Do you
a) know whether it is a soft or hard brick?
b) any workaround?
If you answer to this I would be very glad since I'm currently a bit nervous.
Thank you and regards so far.
snikk said:
Hi all,
I've tried to downgrade my S5 from most recent Kies lolipop to kitkat (G900FxxxANCE from sammobile). After odin pass the phone reboots (at leas it seems so) but does not show up on screen - so screen is black and no chance to do anything - the blued led comes up.
Thank you and regards so far.
Click to expand...
Click to collapse
Can you still enter Download Mode, and Recovery Mode?
Uzair40 said:
Can you still enter Download Mode, and Recovery Mode?
Click to expand...
Click to collapse
No, not really. Or I don't really know since the screen doesnt show anything. I've read that the blue led stands for entering download mode.
Well, at least odin recognizes the phone when plugging in while the blue led is on.
If you had a successful odin flash, you should have a recovery.....
You need to (at least) try to get into recovery.....sometimes, in cases like this, wiping cache and factory resetting (maybe a couple of times) is enough to get the phone to reboot......
If it doesn't work, going to download mode and re flashing your LP firmware may be necessary.......
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
If you had a successful odin flash, you should have a recovery.....
(...)
If it doesn't work, going to download mode and re flashing your LP firmware may be necessary.......
Click to expand...
Click to collapse
The screen is plain dead. It does not react in any way. When I "start" the phone I don't see anything except the blue led in the upper left corner on the phone itself.
I'm not sure if its booting into recovery (I've read that the blue led stands for recovery mode though).
The only thing I recognize is the successfull connection in Odin but I can't flash again since it hungs in "Connecting..."-state.
Regards.
snikk said:
The screen is plain dead. It does not react in any way. When I "start" the phone I don't see anything except the blue led in the upper left corner on the phone itself.
I'm not sure if its booting into recovery (I've read that the blue led stands for recovery mode though).
The only thing I recognize is the successfull connection in Odin but I can't flash again since it hungs in "Connecting..."-state.
Regards.
Click to expand...
Click to collapse
Remove the battery so you know 100% the phone is off
Replace battery
Press and hold Power Down & Home & Power until it enters download mode
If nothing appears on the screen after a few seconds (Give it about 5+ seconds of holding the buttons down), then it is likely a hardware issue
Possibly the phone itself, but also possible one of those buttons is not working
*Detection* said:
If nothing appears on the screen after a few seconds (Give it about 5+ seconds of holding the buttons down), then it is likely a hardware issue
Click to expand...
Click to collapse
Thank you. It didn't work in any way. I've tried to connect via ADB and factory reset but I can't establish a ADB connection. I connect the device and windows tells me "Installing drivers" (Drivers are installed) but fails in the end. So I guess this is the fault. Whatever.
I can't tell in which state the phone boots as I only see the blue led (its just turned on - no blinking).
snikk said:
Thank you. It didn't work in any way. I've tried to connect via ADB and factory reset but I can't establish a ADB connection. I connect the device and windows tells me "Installing drivers" (Drivers are installed) but fails in the end. So I guess this is the fault. Whatever.
I can't tell in which state the phone boots as I only see the blue led (its just turned on - no blinking).
Click to expand...
Click to collapse
Sounds like it's time for the old repair shop unfortunately
i have had the same problem when i downgrade to kitkat to fix it download a lollipop rom from sammobile then u have to :
-remove battery put it back
-press Home + Power + Volume Down buttons
-screen will be black no problem press up arrow to continue to download mode
-connect phone to usb
-open odin u will see it is connected
-flash lollipop and u will be back
i think it is a restriction for lollipop because u will root the phone on kitkat with tw.apk
if this not will help i have another solution just try it same problem to me and i figured my self to fix the problem
Hi all,
i have the same probleme with my sam G5.
after flashing back the lolipop stock rom 5.0 the phone seems to be working properly except for the screen that shows nothing; windows detects it as MTP device and i can get in and see all the content inside of it, also when i assimilate entering the download mode (volume down + Home + power then after few secondes Vol up) it goes well since odin detects it and flash it (but always there is nothing that shows up on the screen),
any ideas or hints ??
If you want to downgrade to kitkat from lollipop,then flash kitkat modem and bootloader for your device,you can search on the xtrestolite post,the developer put bootloaders and modems for each g900* device for kitkat and lollipop roms.

LG G2 D802 not responding

I have a LG G2 D802 that had the rum LineageOS 14 but good I turned on the device after the day I did not use it and the phone stuck in Boot Loop I put it in the download mod to install the official rom through the KDZ file but he did not respond what is yes Made a sound when I hung up and connected it to my computer and now it does not even go into the download mod Anyone knows what to do ????
it's urgent!!
Thanks for the helpers
ShadowsMtrixs said:
I have a LG G2 D802 that had the rum LineageOS 14 but good I turned on the device after the day I did not use it and the phone stuck in Boot Loop I put it in the download mod to install the official rom through the KDZ file but he did not respond what is yes Made a sound when I hung up and connected it to my computer and now it does not even go into the download mod Anyone knows what to do ????
it's urgent!!
Thanks for the helpers
Click to expand...
Click to collapse
Unplug usb from computer.
Try to power off ( holding power button for some time. Don't leave power button again if lg logo appears.)
Phone Will be off now.
Now hold volume up button and plug the usb.
You should get download mode.
**your usb port may be loose.
Don't shake usb cable while flashing using lg flash tool.
.
salamabhishek said:
Unplug usb from computer.
Try to power off ( holding power button for some time. Don't leave power button again if lg logo appears.)
Phone Will be off now.
Now hold volume up button and plug the usb.
You should get download mode.
**your usb port may be loose.
Don't shake usb cable while flashing using lg flash tool.
.
Click to expand...
Click to collapse
I know how to get into the download mod problem that the device no longer enters no matter what way I do it
Did u select cse flash while flashing kdz file?
What do u get ?

Lg v20 download mode help

Hi, my screen does not turn on, i can feel vibration when it is turned on, i am trying to put it into download mode holding VOL- button and using usb cable, but not working. (it worked before)
Anyone can help me with how to put it into download mode so that i can flash stock firmware using LGUP.
As screen is always black, i cant tell anything.
Did you check to see if it was detected by LGUP? Power it off, connect USB cable to PC, hold volume UP with phone still off and plug in the cable to your phone. Release a few seconds after the phone vibrates to be sure it got into download mode. LGUP should detect it if it made it to download mode successfully. I would also be sure your battery is charged before doing anything.
Do you know what caused the screen to stop working or remember the last thing you did before it stopped? Perhaps there's an internal hardware issue.

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