LG G4 H810 10o unlock bootloader/enable fastboot - AT&T LG G4

Hello everybody!
i have this device.
Device info:
Code:
android version: 5.1
baseband version: MPSS.BO.2.5.c3-00070-M8992FAAAANAZM-1.19025.1
kernel version: 3.10.49
build number: LMY47D
sw version: H81010o
security sw version: MDF v1.1 release 5
(I'm not sure it's a real H810, on the back there was a sticker and below it a hidden "H811" sign.
Furthermore, "LG Phone From" app reports a "stolen" IMEI.
How can i verify if it's a real H810?)
I successfully rooted it following this guide.
I can enter in download mode by plugging the USB cable while pressing VolumeUp button, but i can't unlock bootloader or boot in fastboot mode.
I can see the device through adb, but if i try:
Code:
adb reboot bootloader
simply the phone reboots in normal mode
I tried to install TWRP following this guide (dd Install Method), but if i try:
Code:
adb reboot recovery
the phone gives me a "security boot" error, then boots in normal mode.
After some searching, i found that i can probably force the fastboot mode by zeroing laf partition, but i haven't tried this yet.
My question is:
If i zero the recovery partition (that currently contains a non-bootable recovery) and i send a
Code:
adb reboot recovery
command, the phone should go in fastboot mode without losing the download mode, right?
Someone can give me a better idea to unlock bootloader/enable fastboot mode?
Thanks in advance

encol said:
Hello everybody!
i have this device.
Device info:
I successfully rooted it following this guide.
I can enter in download mode by plugging the USB cable while pressing VolumeUp button, but i can't unlock bootloader or boot in fastboot mode.
I can see the device through adb, but if i try:
simply the phone reboots in normal mode
I tried to install TWRP following this guide (dd Install Method), but if i try:
the phone gives me a "security boot" error, then boots in normal mode.
After some searching, i found that i can probably force the fastboot mode by zeroing laf partition, but i haven't tried this yet.
My question is:
If i zero the recovery partition (that currently contains a non-bootable recovery) and i send a command, the phone should go in fastboot mode without losing the download mode, right?
Someone can give me a better idea to unlock bootloader/enable fastboot mode?
Thanks in advance
Click to expand...
Click to collapse
You can't unlock h810!
Only h811 and h815 international.
.
Sent from my LG-H815 using XDA Labs

steadfasterX said:
You can't unlock h810!
Only h811 and h815 international
Click to expand...
Click to collapse
I updated the first post.
I suspect it's a H811

Thanks to @autoprime suggestions, i've found some additional informations:
I dumped the aboot partition, and i found this string in it with an hex editor: "gpt.model.name..LG-H810"
In the hidden menu i see "non-fusing device"

is there an undiscovered download mode in this device?
is there an undiscovered safe mode android boot into?
is thera an undiscovered "IMEI display" screen?

chepe263 said:
is there an undiscovered download mode in this device?
is there an undiscovered safe mode android boot into?
is thera an undiscovered "IMEI display" screen?
Click to expand...
Click to collapse
I don't know if you mean these, but:
I can enter download mode by power off and then holding volume up when plugging to the USB
I can boot in safe mode by holding Power Off icon
I can get IMEI by composing
Code:
#*06#

encol said:
I don't know if you mean these, but:
I can enter download mode by power off and then holding volume up when plugging to the USB
I can boot in safe mode by holding Power Off icon
I can get IMEI by composing
Code:
#*06#
Click to expand...
Click to collapse
Pressing up and down when the phone boots brings up the imei screen. Holding power + up while bootanimation starts safe mode.
-----------
What if you plug a physical keyboard with usb otg and press DELETE, F2, F9 or F12 like a computer? I know it sounds dumb but what if no one has tried and it was the solution all this time?

chepe263 said:
What if you plug a physical keyboard with usb otg and press DELETE, F2, F9 or F12 like a computer? I know it sounds dumb but what if no one has tried and it was the solution all this time?
Click to expand...
Click to collapse
I don't have a USB keyboard at the moment.
What should happen?
Have you tried this? On what device?

encol said:
I don't have a USB keyboard at the moment.
What should happen?
Have you tried this? On what device?
Click to expand...
Click to collapse
My usb keyboard is broken. I guess nothing will happen but I was imagining a computer with extra options in the bios.
You know... maybe a secret bootloader menu.
-------------------------
The keyboard has no power when the phone boots.

steadfasterX said:
You can't unlock h810!
Only h811 and h815 international.
Click to expand...
Click to collapse
So does that mean the h810 can't be rooted?

clyde54 said:
So does that mean the h810 can't be rooted?
Click to expand...
Click to collapse
Well at the time I wrote the above it was true...
Now the game has changed! Wait until the last week of January when I'm back from vacation where I start with releasing UsU (see my sig for the PoC thread)
Sent from my LG-H815 using XDA Labs

rooting my LG G4 H810
steadfasterX said:
Well at the time I wrote the above it was true...
Now the game has changed! Wait until the last week of January when I'm back from vacation where I start with releasing UsU (see my sig for the PoC thread)
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Hello,
I'm trying to root my LG G4 H810 so I can install a custom rom. I've tried following up on this comment you made about "UsU" and the "PoC" thread but I haven't been able to find anything.
Is rooting the H810 possible yet? I have Marshmallow software version 21y installed on mine.
Thank you and I'm so very sorry to hear about the passing of your dog : (

G4_PITA said:
Hello,
I'm trying to root my LG G4 H810 so I can install a custom rom. I've tried following up on this comment you made about "UsU" and the "PoC" thread but I haven't been able to find anything.
Is rooting the H810 possible yet? I have Marshmallow software version 21y installed on mine.
Thank you and I'm so very sorry to hear about the passing of your dog : (
Click to expand...
Click to collapse
thanks.. Yes he left an empty space here..
Read the state of UsU here:
https://forum.xda-developers.com/g4/general/bl-unlock-unlock-bootloader-proof-t3648288/post75504280
Sent from my LG-H815 using XDA Labs

Related

[q] nexus s 4g cant flash stock plz help!!!!

I can do everything with my phone except for flash stock no matter how many times and ways I try it won't work. Have tried using SW Updater and it gives me the following message:
"Error Occured! Cancel Download!"
I also tried with fastboot and after the phone reboots I get this message:
<waiting for device>
For some reason the phone continues to show these two lines at the bottom of the bootloader screen:
USB Control Init
USB Control Init End
I am really in need of help. Can somebody please help me?
KJOM said:
I can do everything with my phone except for flash stock no matter how many times and ways I try it won't work. Have tried using SW Updater and it gives me the following message:
"Error Occured! Cancel Download!"
I also tried with fastboot and after the phone reboots I get this message:
<waiting for device>
For some reason the phone continues to show these two lines at the bottom of the bootloader screen:
USB Control Init
USB Control Init End
I am really in need of help. Can somebody please help me?
Click to expand...
Click to collapse
Hi,
What are coming from? rooted with what ROM.. what recovery?
And are you trying to flash the newest ICS from stock recovery?
I guess Im just trying to see what you did and what you had before it all happened.
Thanks
Im currently running the [AOSP][4.0.4]Codename Android 2.0.0RC|Fully Open Source+Nightly Builds Rom and I have CWM Recovery and I am trying to flash the OTA ICS Update.
http://forum.xda-developers.com/showthread.php?p=24297394
[OFFICIAL][ROM][CWM] NS4G IMM76D 4.0.4 | Rooted | Zipalign | ETC
This is what u want if ur already rooted
Good luck
Vs Nexus S 4G
I already know how to do everything else, my problem is flashing back to stock because of those messages. I only want to flash back to stock.
I had an issue where fastboot wouldn't recognize my device when I was in bootloader. For whatever reason it worked if I hooked up my phone via usb then rebooted into bootloader.
Anyway you can use this method
http://forum.xda-developers.com/showthread.php?t=1575502
Sent from my Nexus S 4G using Tapatalk 2
Did you install the wrong bootloader by any chance?
KJOM said:
I already know how to do everything else, my problem is flashing back to stock because of those messages. I only want to flash back to stock.
Click to expand...
Click to collapse
That's why I asked for some clarity on ur post.
U want to Unroot and return to stock.
Its a big difference when someone reads and tried to help.
What root method did u use?
Vs Nexus S 4G
@vidaljs, I used the fastboot method to install IMM26D & @psg190, I don't think so.
KJOM said:
@vidaljs, I used the fastboot method to install IMM26D & @psg190, I don't think so.
Click to expand...
Click to collapse
Boot into the bootloader (volume up + power button) and tell me what it says for bootloader version.
It says:
FATBOOT MODE
PRODUCT NAME -HEARING
HW VERSION - D720SPAKE1
BASEBAND VERSION - D720SPALC1
CARRIER INFO - SPR
SERIAL NUMBER - 32************EC
LOCK STATE - UNLOCKED
SELECT - VOL UP or VOL DOWN
EXCUTE - POWER
REBOOT BOOTLOADER
REBOOT
RECOVERY
POWER OFF
USB Control Init
USB Control Init End
KJOM said:
It says:
FATBOOT MODE
PRODUCT NAME -HEARING
HW VERSION - D720SPAKE1
BASEBAND VERSION - D720SPALC1
CARRIER INFO - SPR
SERIAL NUMBER - 32************EC
LOCK STATE - UNLOCKED
SELECT - VOL UP or VOL DOWN
EXCUTE - POWER
REBOOT BOOTLOADER
REBOOT
RECOVERY
POWER OFF
USB Control Init
USB Control Init End
Click to expand...
Click to collapse
Well, that's good that you have the right bootloader. Mine had the same problem, but I accidentally flashed the wrong bootloader. Pretty sure that's why I had no fastboot or USB mount. I had to send mine into Samsung for repairs.
So what's wrong with it?
KJOM said:
So what's wrong with it?
Click to expand...
Click to collapse
With yours? I don't know.
With mine? I don't know.
lol dam
KJOM said:
lol dam
Click to expand...
Click to collapse
Sent my jacked up phone into Samsung. It was unlocked and had TWRP on it (like I said before, no fastboot and none of my computers with any combination of OS/USB cable would recognize the phone). Samsung either repaired or replaced it and it is shipping back to me today.
Thats good for u. But I still can't flash stock, other than that, I'm doing great with mine.
RESOLUTION: Assuming you've installed the correct Samsung ADB drivers, you will have had to go to Device Manager, and tell it which driver to use. Good job at getting to to the fastboot screen! You're almost done.
At this point, (on fast boot) open up Device Manager again on your computer. Now your phone is being recognized as something completely different: Android 1.0 was what mine said. Right click on it, 'update driver software', 'browse my computer for...', 'let me select from a list of...", then choose "ADB Interface" from the list. If ADB interface is missing from the list, you haven't installed the drivers.
It will then give you a list of ADB Samsung phone drivers to choose from. I just chose the most updated ones (2012 was at the end of the strand of information about it, as opposed to 2010 which was further down). The second you click next, your phone (assuming you still have the command prompt up on your computer, saying its searching or waiting for your phone) will start to fly through the process of returning you back to stock.
DONE!
Good luck.
Thanks jackharvest. I didn't know Samsung had their own ADB drivers. That was the key! After I configured Windows Device Manager, as you indicated, to use the Samsung driver, all I had to do was run the windows batch file "flash-all.bat" which I had downloaded from google's "Factory Images for Nexus Devices." Unfortunately, their instructions don't tell use about the steps you identified!

G6-L11 Stuck in Fastboot & Rescue mode

My brothers Huawei G6-L11 suddenly rebooted yesterday in fastboot / recovery mode. It says to connect it to a PC with Hirsute installed. Tried it, also installed Fastboot, ADB and drivers but the program didn't find the phone. Then i tried looking for the recovery image because it says: "recovery image verify failed" before it get's into this mode. I found it and tried to flash it using Fastboot but failed, I think this is because the phone is locked? So i Googled for an unlock code and found out Huawei has a website for it but i need a product ID wich I can't find if the phone can't boot. Anyone an idea on what i should try next?
Skoshy-007 said:
My brothers Huawei G6-L11 suddenly rebooted yesterday in fastboot / recovery mode. It says to connect it to a PC with Hirsute installed. Tried it, also installed Fastboot, ADB and drivers but the program didn't find the phone. Then i tried looking for the recovery image because it says: "recovery image verify failed" before it get's into this mode. I found it and tried to flash it using Fastboot but failed, I think this is because the phone is locked? So i Googled for an unlock code and found out Huawei has a website for it but i need a product ID wich I can't find if the phone can't boot. Anyone an idea on what i should try next?
Click to expand...
Click to collapse
Did you find a solution?
Skoshy-007 said:
My brothers Huawei G6-L11 suddenly rebooted yesterday in fastboot / recovery mode. It says to connect it to a PC with Hirsute installed. Tried it, also installed Fastboot, ADB and drivers but the program didn't find the phone. Then i tried looking for the recovery image because it says: "recovery image verify failed" before it get's into this mode. I found it and tried to flash it using Fastboot but failed, I think this is because the phone is locked? So i Googled for an unlock code and found out Huawei has a website for it but i need a product ID wich I can't find if the phone can't boot. Anyone an idea on what i should try next?
Click to expand...
Click to collapse
Have you try to flash a defoult ROM?
Example B118? http://consumer.huawei.com/kh/support/products/downloads/detail/ascend-g6-4g-kh.htm?id=25971
than extract dload folder and copy to sd card, press vol +, vol - and power at same time, and can be one of this 2 way:
1º - HOLD IT, the phone boots but don´t release any key, let boot 2x, relase only power in next boot than vols when flash starts
or
2º - HOLD IT, but the phone dont boot, don´t release any key, 3 seconds and release only power than vols when starts the flash.
persona78 said:
Have you try to flash a defoult ROM?
Example B118? http://consumer.huawei.com/kh/support/products/downloads/detail/ascend-g6-4g-kh.htm?id=25971
than extract dload folder and copy to sd card, press vol +, vol - and power at same time, and can be one of this 2 way:
1º - HOLD IT, the phone boots but don´t release any key, let boot 2x, relase only power in next boot than vols when flash starts
or
2º - HOLD IT, but the phone dont boot, don´t release any key, 3 seconds and release only power than vols when starts the flash.
Click to expand...
Click to collapse
Hi, i try this way, but nothing happens, always go to "fastboot&rescue mode".
No way to see Device ID to try unlock bootloader.
I think is dead phone.
(Hi, i try this way, but nothing happens, always go to "fastboot&rescue mode".
No way to see Device ID to try unlock bootloader.
I think is dead phone.)
i totally agree with this person please help me already in trouble with my phone from 2 week cant find any solution even not connected to my laptop
wajihafatima said:
(Hi, i try this way, but nothing happens, always go to "fastboot&rescue mode".
No way to see Device ID to try unlock bootloader.
I think is dead phone.)
i totally agree with this person please help me already in trouble with my phone from 2 week cant find any solution even not connected to my laptop
Click to expand...
Click to collapse
Hi,
i had the same issue (locked bootloader) for my Huawei G6-L33, but I used a program called "Huawei Product ID Generator.exe " and my phone is already unlocked. The tricky with this program was to select as a huawei model "HUAWEI Y300-0100" even if your phone model is different. Also at the huawei web page for unlocking devices (https://emui.huawei.com/en) you have to enter the same tricky model "HUAWEI Y300-0100". All the rest info of your phone is the same, i.e. IMEI, SERIAL NUMBER.
I hope it could help you
Very thanks!!!
doowa said:
hi,
i had the same issue (locked bootloader) for my huawei g6-l33, but i used a program called "huawei product id generator.exe " and my phone is already unlocked. The tricky with this program was to select as a huawei model "huawei y300-0100" even if your phone model is different. Also at the huawei web page for unlocking devices (https://emui.huawei.com/en) you have to enter the same tricky model "huawei y300-0100". All the rest info of your phone is the same, i.e. Imei, serial number.
I hope it could help you
Click to expand...
Click to collapse
Anyone can post the Link to the current bootloader unlocking page ? as the posted one is not working.
and any chance someone could upload the Application to generate the Product ID somewhere ?
bufank said:
Very thanks!!!
Click to expand...
Click to collapse

Screwed up my LG Stylo

I was in TWRP and accidently wiped data without realizing it. and then try to reboot.
now it goes to a blue screen (subsystem c.rash)
please do the following action.
1.) Dload Mode. Please connect USB.
2.)get the ram dump image using QPST Configuration.
if you want to reboot. Press Volume Up or Down, and Hold a Second
Board Info
rev.:1.0 serial (b4fff42e786d63f)
secure boot enabled
Is there anyway to fix this
Sincerely Dale
You didn't specify which model you have. Here's the guide for T-Mobile/MetroPCS
http://forum.xda-developers.com/lg-g-stylo/how-to/lg-g-stylo-t-mobile-lg-h631tn-t3123165
Model Number
billybubba1234 said:
You didn't specify which model you have. Here's the guide for T-Mobile/MetroPCS
http://forum.xda-developers.com/lg-g-stylo/how-to/lg-g-stylo-t-mobile-lg-h631tn-t3123165
Click to expand...
Click to collapse
Sorry about that it's LG-H631
Why was wondering if there's a way to communicate with it on the blue screen.
Thanks Dale

I bricked my phone very bad

So i was unistalling exposed and ineeded to reboot my phone and it got bricked/bootlooped i. also deleted my system recovery so i can't fix it.
What to do?
Can i use my phone again?
plz i need help
My device is ZTE BLADE L3
SwagHrco said:
So i was unistalling exposed and ineeded to reboot my phone and it got bricked/bootlooped i. also deleted my system recovery so i can't fix it.
What to do?
Can i use my phone again?
plz i need help
My device is ZTE BLADE L3
Click to expand...
Click to collapse
I'm sorry but without custom recovery , you can't do a lot of things .
Did you have the OEM unlock option enabled ?
SwagHrco said:
So i was unistalling exposed and ineeded to reboot my phone and it got bricked/bootlooped i. also deleted my system recovery so i can't fix it.
What to do?
Can i use my phone again?
plz i need help
My device is ZTE BLADE L3
Click to expand...
Click to collapse
Can you boot to fastboot mode and is your stock firmware available for download? Ice seen many ZTE devices that have fastboot removed by their carrier network, ifvuours is one of these devices, you might not be able to fix it yourself. You may need to have a professional shop repair it.
Sent from my LGL84VL using Tapatalk
You can still enter download mode with hardware key combo and flash stock ROM via pc. Search for the key combination for your device usually it's power+both volume keys when boot and holding volume keys for 15 seconds when plugged to pc. Btw I found an unbricking tutorial for you phone , you will lose your user data if you do it though. https://forum.xda-developers.com/general/help/totally-bricked-zte-blade-l3-solutions-t3462875
Brainyboy said:
You can still enter download mode with hardware key combo and flash stock ROM via pc. Search for the key combination for your device usually it's power+both volume keys when boot and holding volume keys for 15 seconds when plugged to pc. Btw I found an unbricking tutorial for you phone , you will lose your user data if you do it though. https://forum.xda-developers.com/general/help/totally-bricked-zte-blade-l3-solutions-t3462875
Click to expand...
Click to collapse
It depends on exactly which model number of ZTE Blade L3 , most devices have multiple variants with the same device name but different model numbers depending on the carrier/network/region/country. What works and what doesn't depends on the specific variant of that device. I know of a few different mobile carriers that remove fastboot and/or recovery from the ZTE devices they offer. Using fastboot or recovery to repair/modify those devices is not an option at all.
Sent from my LGL84VL using Tapatalk

Bricked My phone, cant get into FastbootD to fix it

So i recently wanted to root my OOS 12 oneplus nord, and i bricked it..
i cant get into fastbootD, Recovery, or anything at all except fastboot, the device is detected as Android bootloader interface in device manager, i have tried using: msm tool, flashing normal rom (error: partition not found and Flashing is not allowed for critical partition)
As a last resort, this worked for me : [OPNORD][OOS AC01AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Azeld said:
As a last resort, this worked for me : [OPNORD][OOS AC01AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Click to expand...
Click to collapse
As I said, msm didn’t work for me
Hafted said:
As I said, msm didn’t work for me
Click to expand...
Click to collapse
may be need to reinstall drivers? should be displayed differently in the device manager than Android bootloader interface.
gorro8 said:
may be need to reinstall drivers?
Click to expand...
Click to collapse
Nope, I can’t get it into edl mode, I did manage once but I got the you need to restart error and I couldn’t get it back there
Hafted said:
Nope, I can’t get it into edl mode, I did manage once but I got the you need to restart error and I couldn’t get it back there
Click to expand...
Click to collapse
what do you do to enter the edl mode?
what cable are you using?
gorro8 said:
what do you do to enter the edl mode?
what cable are you using?
Click to expand...
Click to collapse
Using official one plus cable, I hold bot volume keys for about 40 seconds, then connect the cable and only then I let my hands go off the keys
I found a problem similar to yours. they say it's the wrong driver
[Bricked] OP8 : FASTBOOT rom : 'Flashing is not allowed for Critical Partitions
I messed up trying to install TWRP on c.17 OOS12 Now the mobile is bricked. 1. I tried the MSM tool, it shows the COM PORT but doesnt do anything. Just stuck at waiting for device. 2. I tried the ALL IN ON TOOL, but getting "UNHANDLED...
forum.xda-developers.com
download the correct drivers and replace them in the device manager
gorro8 said:
I found a problem similar to yours. they say it's the wrong driver
[Bricked] OP8 : FASTBOOT rom : 'Flashing is not allowed for Critical Partitions
I messed up trying to install TWRP on c.17 OOS12 Now the mobile is bricked. 1. I tried the MSM tool, it shows the COM PORT but doesnt do anything. Just stuck at waiting for device. 2. I tried the ALL IN ON TOOL, but getting "UNHANDLED...
forum.xda-developers.com
Click to expand...
Click to collapse
Ok, I’ll try that and give you an update, Ty!
worth trying another USB port too, even if they are supposed to be the exact same. Same thing happened with my laptop, tried another (presumably identical) USB port and it works first time, every time
Hafted said:
Using official one plus cable, I hold bot volume keys for about 40 seconds, then connect the cable and only then I let my hands go off the keys
Click to expand...
Click to collapse
1st, u really should find the exact drivers. But also very important to remember booting your PC into Test Mode with Driver Signature Enforcement OFF - BEFORE installing the EDL 9008 Drivers for your device.
Besides, after you press and hold both Vol buttons, u should plug the device in IMMEDIATELY, not waiting for 40 seconds, since each time the device boots into EDL mode, if there's no connection is established in 5 seconds , the device will automatically out of EDL mode.
Hey, so after some time (I got a new phone by now) I managed to fix it, turns out that i had to instantly put in the cable, just like how LinhBT Said
LinhBT said:
waiting for 40 seconds, since each time the device boots into EDL mode, if there's no connection is established in 5 seconds , the device will automatically out of EDL mode.
Click to expand...
Click to collapse
Here is something that might work for unbricking and/or getting in to EDL-mode:
Unable to reinstall Oxygen OS from custom ROM. FAILED (remote: Flashing is not allowed for Critical Partitions ). Need assistance, details below.
Hello, friends. So I am here following this exact tutorial : https://www.thecustomdroid.com/oneplus-nord-oxygenos-restoration-guide/ I currently am stuck there @pop-os:~/Desktop/platform-tools_r31.0.2-linux/platform-tools/Partition-image$...
forum.xda-developers.com

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