Fastboot Not Working - T-Mobile LG G3

Device recognized as ? in fastboot - won't return an identifier.
Commands can be given but nothing ever happens.
Just sits at "erasing..." , "flashing...", etc.
Trying to flash laf.bin to bring back Download Mode.
TIA for any ideas

Related

[Guide] Re-lock and Un-root **3G & 4G** Xoom

##PLEASE NOTE##
These files are from Motorola's Development site and I take no liability with anything that happens with your device if something goes wrong.
DO NOT ATTEMPT TO FLASH THIS FILE ON ANYTHING BUT THE VERIZON WIRELESS MOTOROLA XOOM Z600 (3G MODEL) OR YOU WILL HAVE A SHINEY PAPER WEIGHT!!!!
Click to expand...
Click to collapse
You're going to need to have the Android SDK installed. You can download it here:
ANDROID SDK - DOWNLOAD
XOOM Firmware Downloads:
[3G|MZ600-HRI66]
[4G|MZ602-HLK75D]
Unzip the files in MZ600_HRI66.zip and move or copy them to the /platform-tools folder in your SDK folder.
Connect your Xoom to your computer. Type:
Code:
adb reboot bootloader
Wait for it to reboot into the bootloader.
Type the following commands, waiting for each to finish before continuing:
Code:
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash userdata userdata.img
fastboot erase cache
You've now successfully flashed your Xoom back to stock. Now it's time to relock the device. Type
Code:
fastboot oem lock
wait for the menu
then press the volume-down button.
Then press the volume up button.
It'll take a minute or so, then reboot. You're now completely back to stock and ready for the update.
So if you are on Three . One you can use this to revert back to out of the box freshness?
Brenardo said:
So if you are on Three . One you can use this to revert back to out of the box freshness?
Click to expand...
Click to collapse
Yes. That is correct. This will return your XOOM to 100% stock.
word!
I have already been thru the LNX 0x0004 debacle and it was absolutely no fun whatsoever.
well I got a stuck at moto logo for 10 minutes
I am going to try to fastboot oem unlock, reflash images again and fastboot lock to see if I get out of moto logo
second install fix it
jlouang said:
second install fix it
Click to expand...
Click to collapse
So that means that you got it working, correct?
>.>
So the HRI66 is the latest version on the Motorola site? I really need to get a grasp of their version numbers.
EDIT:
Never mind looks like HRI66 is the latest version Thanks anyway.
i was thinking that with the change to the bootloader in the 3.1 update we couldn't use previous versions img's. But I am glad we can return to stock and get this 4G update!
I'm following all those steps directly. Once I type in adb reboot bootloader, it says starting Fastboot protocol support. Once I try to type any other command it says not recognized in adb. Any ideas?
Dead link...
dchurch85 said:
I'm following all those steps directly. Once I type in adb reboot bootloader, it says starting Fastboot protocol support. Once I try to type any other command it says not recognized in adb. Any ideas?
Click to expand...
Click to collapse
Did you extract all of the files in the ZIP into the 'tools' folder? The same one that adb is in.
Could someone help me,
After the rebooting device I got this massage :
Failed to boot LNX 0x0004
Starting RSD mode 2
Then stuck on Motorola logo. I can't enter the recovery mode.
What should I do ?
My Xoom is H.6.1-38-9 International version
CakraMas said:
Could someone help me,
After the rebooting device I got this massage :
Failed to boot LNX 0x0004
Starting RSD mode 2
Then stuck on Motorola logo. I can't enter the recovery mode.
What should I do ?
My Xoom is H.6.1-38-9 International version
Click to expand...
Click to collapse
This is what I was afraid of..... try searching the error you are getting. Not many options on how to fix.
i am curious about the LNX 0x0004 error. I know it comes from trying to relock with non-factory img's but what exactly does that mean? I am curious what actually causes the device to soft brick.
Finally I made it, .
I can enter to bootloader by fastboot method, flash the stock image, then relock my device.
Kinda having the same issue as dchurch... "adb reboot bootloader" reboots Xoom to the "M" logo with "Starting Fastboot protocol support," but I can't continue with nay further commands. My computer no longer recognizes the presence of my Xoom and my Xoom doesn't progress past this screen. I can boot it normally with no problem. I've extracted all of the necessary files into my platform tools folder with adb.. any input?
gatorhater73 said:
Kinda having the same issue as dchurch... "adb reboot bootloader" reboots Xoom to the "M" logo with "Starting Fastboot protocol support," but I can't continue with nay further commands. My computer no longer recognizes the presence of my Xoom and my Xoom doesn't progress past this screen. I can boot it normally with no problem. I've extracted all of the necessary files into my platform tools folder with adb.. any input?
Click to expand...
Click to collapse
You can try manually going into fastboot as well... there are two ways to do this:
No matter what, power off the Xoom. Then, 1) Power on the Xoom and as soon as you see it turn on (within a second or two of the power on), press the Volume Down button, which kicks it into Fastboot. 2) If you miss the 1st couple of seconds and press Volume Down after 3-5 seconds, it will say "Android Recovery." You can then press Volume Down until you get to Fastboot, then press Volume Up.
My guess is that you have a different issue, something to do with your Fastboot image. Not sure if booting the Xoom into the OS and connecting with USB Debugging on will work or not to flash the files, perhaps maybe just the boot.img?
I also believe that when the Xoom says "Starting Fastboot protocol support", it is in fastboot mode and you can send the fastboot commands to the Xoom. If your PC does not show the Xoom as a device in your PC's Device manager, then you will probably need to load new/correct drivers onto your PC.
Did you make sure that adb recognized your device? Adb devices in the camaned prompt
Sent from my Xoom using Tapatalk

LG G3 Bricked / No ADB / No download mode / No recovery

Hi,
Since the rom ( http://forum.xda-developers.com/lg-g3/development/rom-resurrection-remix-lp-v5-5-5-t3198675 ) of my phone crashed. After reboot, the phone is blocked on LG logo. Now, i can't enter in recovery mode (or in the download mode) and when I start my phone, it's fixed on the LG for 5 to 10 minutes, and after that it goes to a terminal (started fastboot mode).
I have read several tutorials to use fastboot to flash the recovery to reinstall a rom, but i have a error when i tried to erase or flash the recovery partition.
I look on my phone, and this error appear : "failed to send erase grp start address".
what can i do to fix this error ?
Thanks.
up please
Use the "boot" command instead of "flash" and it should boot up into recovery or downloadmode, depending on which file you use
I tried but i am stucked on teamwin logo.
Which file do i use for download mode ?
Hard to tell, there are some laf.img files floating around on xda and google or even better, extract the laf.img from the stock kdz depending on your android version (for instance you flashed 6.0 you pick the 30b kdz and extract it with the firmware extraction tool)
I would suggest you to and try to use the boot command with them..
Be carefull, do not use the flash command until you found one that boots into downloadmode properly or you can loose your fastboot mode aswell
From then on you should be able to boot into the downloadmode and flash a new firmware via the lg flashtool
I need help please. What can i do to re install a rom ?
Does your PC recognise the port.?
I found tutorial under bender_007 signature. People seemed happy with tool.
http://www.androidbrick.com/unbrick-recover-your-dead-lg-g3-g2-all-variants/
Doesn't hurt to read and ask some questions.
no i can't connect my phone with port. I think, i nned to correct the error with fastboot. (remote : failed to erase partition)
th0was said:
no i can't connect my phone with port. I think, i nned to correct the error with fastboot. (remote : failed to erase partition)
Click to expand...
Click to collapse
Can you elaborate, how exactly your phone crashed, it is very unlikely that it will mess all the partitions just by crashing the rom?
The rom crushed twice, and now i can not access to recovery to install a new rom. I only have access to the fastboot command. Adb not working.
I tried to boot on recovery.img, but it's not working.
Thank for your help.
Regards,
Help please ?
Today i can connected to my phone with ADB when i tape this fastboot command : fastboot boot ./recovery.img.
I can too go into my phone as root with adb command : adb shell.
i tried to push flash_image on my phone and use it, but it donesn't work.
how can i flash my phone with adb command ?

LG G4 Stuck in Fastboot

Hello!
I'm trying to fix a LG G4 that goes straight into fastboot mode when it's powered up.
I've tried several things:
1. Holding power + volume down. It goes into recovery mode but when I click yes to restoring everything, it automatically takes me back to the same fastboot screen.
2. I've installed Android-SDK and updated drivers when I plugged in the phone. When I put in 'adb devices', there is nothing. When I put in 'fastboot devices', the serial number shows up. The bootloader is locked and when I put in 'adb reboot bootloader', it says 'error: no devices/emulators found'. Then I tried both 'fastboot oem unlock' and 'fastboot flashing unlock', it gives me: 'FAILED <command write failed <Unknown error>>.
3. I've downloaded TWRP but it obviously does not do anything right now with my errors.
I unplugged the phone from the computer and now it says 0% battery, it does not charge.
I'm really confused and lost at what to do. Any help would be appreciated.
Thank you in advance!
JennV123 said:
Hello!
I'm trying to fix a LG G4 that goes straight into fastboot mode when it's powered up.
I've tried several things:
1. Holding power + volume down. It goes into recovery mode but when I click yes to restoring everything, it automatically takes me back to the same fastboot screen.
2. I've installed Android-SDK and updated drivers when I plugged in the phone. When I put in 'adb devices', there is nothing. When I put in 'fastboot devices', the serial number shows up. The bootloader is locked and when I put in 'adb reboot bootloader', it says 'error: no devices/emulators found'. Then I tried both 'fastboot oem unlock' and 'fastboot flashing unlock', it gives me: 'FAILED <command write failed <Unknown error>>.
3. I've downloaded TWRP but it obviously does not do anything right now with my errors.
I unplugged the phone from the computer and now it says 0% battery, it does not charge.
I'm really confused and lost at what to do. Any help would be appreciated.
Thank you in advance!
Click to expand...
Click to collapse
i dont know what fast boot means or is. but couldnt you just enter download mode and flash KDZ?
raptorddd said:
i dont know what fast boot means or is. but couldnt you just enter download mode and flash KDZ?
Click to expand...
Click to collapse
Hi! I did try to follow the guide to KDZ on here but I can't get into download mode. I'm literally stuck; the phone simply starts up right into fastboot mode.
I need to know the history. What model. What were you doing to get stuck in fastboot.
TheMadScientist420 said:
I need to know the history. What model. What were you doing to get stuck in fastboot.
Click to expand...
Click to collapse
Hi! It's the H810 model. My dad was watching YouTube videos when his phone suddenly turned black and went into fastboot. The phone was originally from Wind Mobile but my brother unlocked it through the web. My dad uses ChatR. In order to start up the phone now, I have to plug it to a wall outlet before it starts up into fastboot. When I plug it into my computer directly, it says 0% battery but it does not charge up.
I know a fastboot usb cable force charges. But it sounds like a more sisnister problem if its like u say. Id sent it to lg for waranty on bootloop issue
LG-H810 Qualcomm 9008
TheMadScientist said:
I know a fastboot usb cable force charges. But it sounds like a more sisnister problem if its like u say. Id sent it to lg for waranty on bootloop issue
Click to expand...
Click to collapse
Sir i ended up flashing wrong kdz to H810 and after flashing it become dead state (Qualcomm9008) mode i successfully recovered it by following this guide https://forum.xda-developers.com/att-g4/general/unbrick-9008-mode-h810-100-method-t3555231/page10
but now it won't go To DOWNLOAD MODE it goes To fastboot mode instead i've tried deffirent LAF.imges but no success !
here is what is on the phone screen when i connect it to pc!
(Product name-msm8992_spr_us
Variant msm8992_p1_spr_usToshiba 32GB
bootloader version -
basevand version -
serial number- LGLS991b77257e1
signing production
secureboot disabled
lock state-locked
can u help?
please (thanx)
And another one who converted his device by using qfil..
Sent from my LG-H815 using XDA Labs
JennV123 said:
Hello!
I'm trying to fix a LG G4 that goes straight into fastboot mode when it's powered up.
I've tried several things:
1. Holding power + volume down. It goes into recovery mode but when I click yes to restoring everything, it automatically takes me back to the same fastboot screen.
2. I've installed Android-SDK and updated drivers when I plugged in the phone. When I put in 'adb devices', there is nothing. When I put in 'fastboot devices', the serial number shows up. The bootloader is locked and when I put in 'adb reboot bootloader', it says 'error: no devices/emulators found'. Then I tried both 'fastboot oem unlock' and 'fastboot flashing unlock', it gives me: 'FAILED <command write failed <Unknown error>>.
3. I've downloaded TWRP but it obviously does not do anything right now with my errors.
I unplugged the phone from the computer and now it says 0% battery, it does not charge.
I'm really confused and lost at what to do. Any help would be appreciated.
Thank you in advance!
Click to expand...
Click to collapse
Try to type into the terminal: 'fastboot continue'. This should make the system start up.
JennV123 said:
Hello!
I'm trying to fix a LG G4 that goes straight into fastboot mode when it's powered up.
I've tried several things:
1. Holding power + volume down. It goes into recovery mode but when I click yes to restoring everything, it automatically takes me back to the same fastboot screen.
2. I've installed Android-SDK and updated drivers when I plugged in the phone. When I put in 'adb devices', there is nothing. When I put in 'fastboot devices', the serial number shows up. The bootloader is locked and when I put in 'adb reboot bootloader', it says 'error: no devices/emulators found'. Then I tried both 'fastboot oem unlock' and 'fastboot flashing unlock', it gives me: 'FAILED <command write failed <Unknown error>>.
3. I've downloaded TWRP but it obviously does not do anything right now with my errors.
I unplugged the phone from the computer and now it says 0% battery, it does not charge.
I'm really confused and lost at what to do. Any help would be appreciated.
Thank you in advance!
Click to expand...
Click to collapse
Just type "fasboot reboot" ..it should boot normally or just press power button for 10 seconds and release

Need help! Bootloader / fastboot unknown issue!

Hi everyone,
I´ve been trying to install twrp recovery in my Huawei Ascend P6 via fastboot. I followed this "techglen adb and fastboot guide"
I already installed everything needed for adb conection.
So I connect my phone in MTP mode and use "adb devices" and my device appears normally, but the problem happens when I reboot into Bootloader/Fastboot mode and use "Fastboot devices" it appears a device conected but with a bunch of "?????" and a smiley face at the end like this:
C:\Fastboot>adb devices
List of devices attached
123456789 device --------> bunch of numbers appear normally
C:\Fastboot>adb reboot bootloader --------> Phone restarts into bootloader mode (shows huawei ascend logo)
C:\Fastboot>fastboot devices
????????_?_???_?<??????? fastboot ----------> WTF (this is exactly what appears)
I would like to know if there's something wrong with my phone
Should I proceed and flash the custom recovery?
I have stock android 4.4.2 (rooted with kingroot) and stock recovery.
I am a total noob at this so I need your help :crying: I dont want to do anything stupid. (If already did let me know lol)
I have the same issue. Problem is that phone is bricked, so I can only enter in recovery (official, unrooted, unlocked) and fastboot mode.
Have you managed to solve or have some hint?
I have experienced a inconsistency while using minimal adb and fastboot. While device not showing i could send command and the phone would respond. After going into bootloader and while my device wasn't shown in the list i could flash twrp without much trouble, helped me go back from being stuck on bootanimation. used the command fastboot flash recovery xxxx.img (where xxx is the name recovery name). If you can get into boot loader try fastboot reboot bootloader and if the phone responds you might be in the same situation i was.
Always remember: Messing with recoveries bootloaders and boot images might make your phone unusable so do it at your own risk
Have you actually tried to flash twrp? Did you put the img file of twrp to the minimal adb and fastboot folder? If so, try the commands 'fastboot flash recovery recovery_twrp.img(<-- use the name of twrp file here, so not the exact name wrote here) and reboot. My phone is a bunch of question marks as well and it flashed twrp just perfectly (I got it frome here: http://forum.xda-developers.com/showthread.php?t=2632542)

İm stuck at fastboot mode

My D855 got stuck in Fastboot mode, i try to get into TWRP, . I cant go to Download mode, it straight goes to to Fastboot mode..... Now my phone couldn't switch back to download mode., only stays at LG screen.....it saya security error. What can i do in fastboot mode? I try to do the command to restore the stock recovery, no working at all.....and all errors.....it says waiting. And my pc only can detect the phone when its in Fastboot mode, which is i can't flash stock rom or else..... Is there anything that i can do to get my phone back?all drive installed.LG flash tool cant cant detect the phone.how can i go back to download mode. Pc can detect the phone on fastboot mode,commands appear.on the LG G3 screen but nothing happens.

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