Database Info

H955 bricked - QHSUSB_BULK?

After bootloop i have flashed this KTZ but it give an error and now my Flex is dead.
Only thing is i get a QHSUSB_BULK in devige manager.
Is there any thing whot i can do now to wix this thing?
Thanks.

Why did you do that? The link you posted is only for H950!!!
BTW no solution at this moment, you only can send it to Lg under warranty
Sent from my Z812 using Tapatalk

i just tweet ask to LG USA but still no solution... im using LS996 same problem error QHSUSB_BULK or qualcomm usb 9008

alexander_ekin said:
i just tweet ask to LG USA but still no solution... im using LS996 same problem error QHSUSB_BULK or qualcomm usb 9008
Click to expand...
Click to collapse
Did you fix your phone. If yes please guide me I also bricked my LG G Flex 2

HELP!!!
If you can repair your cellphone please tell me how?, i need help. i make the same mistake, now i need to unbrick my LG model H955P. i hope you can help me :crying:

aditya2603d said:
Did you fix your phone. If yes please guide me I also bricked my LG G Flex 2
Click to expand...
Click to collapse
No... No hope sorry

basstardo said:
If you can repair your cellphone please tell me how?, i need help. i make the same mistake, now i need to unbrick my LG model H955P. i hope you can help me :crying:
Click to expand...
Click to collapse
may help a service box . have octopus box and medusa box with J-TAG. Sorry my english is weak

Still no solution after 6 months.

Murshad007 said:
Still no solution after 6 months.
Click to expand...
Click to collapse
do you try the sd method for g4??
Im waiting for my sd card to try it...

pelelademadera said:
do you try the sd method for g4??
Im waiting for my sd card to try it...
Click to expand...
Click to collapse
No. I didnt. But I gave it to some repairer and he tried but failed.
You try and then tell results and method.
Thanx

Murshad007 said:
No. I didnt. But I gave it to some repairer and he tried but failed.
You try and then tell results and method.
Thanx
Click to expand...
Click to collapse
If I can get a dump of an h950 I can test... Unfortunatly, Im not in US toget some own... Im from argentina and here are h955ar...

Ok guys, so today i bricked my phone trying to uninstall some bloatware.... Finally i found a way to unbrick my phone, so this is what I've done:
1. Install USB Drivers from LG site
2. Boot your phone into Download mode (volume up and then plig your phone to computer)
3. Open Device manager and check if your phone does appear in Portable Devices, Ports and Modems
4. If appears in all of these open LG Mobile Support Tool and try to install/update android.
5. After these steps your phone should work
I need to mention that this method worked on my LG H955 which al that moment had the v15a. I believe this method will only work with older versions of software, like v15a, v15c, etc and will not work with v20a, v20b, etc
Good luck and if you need more help PM

Any Method to unbrick it?

well i had a same issue 9008 but i manage to write partitions with QFPL . now phone boot up show lg logo and then blue screen ..same as in download mode ..i am also searching any one have an idea . by the way my phone is f510

H950 5.1.1 V11z Bricked/Bootloop: LG Security Error, Authentication Fail #9

Hello
A brief timeline of events leading to this thread:
1. I purchased a G-Flex2 H950 from Ebay for $250 and was supposed to be upgrading from a Galaxy S4-I337.
2. Received my device yesterday and set out to update to 5.1.1 & root the device to remove bloatware.
3. I was able to update to 5.1.1 V11x using my StraightTalk sim on AT&T network.
4. After many frustrating hours of trying to root using different methods, I finally was able to root using the technique mentioned in this thread: http://forum.xda-developers.com/g-flex2/development/root-easy-root-att-flex-2-5-1-1-t3178354
5. A nice complement to point "4" above was the firmware update to 5.1.1 V11z.
6. Extremely happy that I was ready to rock, I set out to delete all the bloatware from my device.
7. First surprise obviously was the inability to remove a bunch of AT&T apps because "APK could not found" error.
8. Like the idiot that I am, I went ahead and deleted the "rootsystem.img" from the internal memory (unnecessarily, blame my OCD!).
9. Now after I finished de-bloating the device (or so I thought), I rebooted it and to my horror... I see the error message:
LG Security Error
Authentication Fail #9
10. I attempted to get to the recovery mode and deleted/erased all data & settings. No dice!
11. I'm still able to get to the download mode using the Volume-Up & USB connect method (& this is why I'm cursing myself at point "8" because I could have re-used the easy root method again to flash the img file).
12. I tried to use the "LG Mobile Support Tool", it recognizes the device correctly as "LGH950" but says V11z is the latest software update.
My question to experts: How SOL am I? I don't think LG would honor my warranty since the purchase is NOT from a authorized dealer/reseller. So no chance of warranty repair/replacement, no?
I looked everywhere (for close to 10 hours) for KDZ & TOT files to even attempt something. But I couldn't find anything for H950. Man, I hate AT&T so much now... Why couldn't they just leave the bootloader unlocked? Or LG (AT&T?)even provide the necessary files to start off with?
Could someone with more knowledge please offer any help? Meanwhile, I've pretty much resigned to be joining the queue full of others with bricked H950's...

From what I've heard LG goes by the S/N and date of manufacturing just like Lenovo for warranty. You can just ask their customer service if the warranty is active for your phone.
As for recovering it all you would've needed to do was use the tool as you stated. I have commented many times explaining people should only disable/freeze bloat and not *delete* anything (there are some crucial system apps, editing build prop seems to cause loops for me for ex.). There was another member in this situation if I remember correctly.
In case you can't go the warranty route ask Sj if he has found a way to push files while the phone is in DL mode.
Sent from my XT1528

Hi i have the same problem, I rename many apps in system folder of my ls996 zv8 and now the phone no boot and only show "LG Security Error"
I tried to rename the files in download mode but system partition is mounted as read only, and also fails when attempting to mount this in rw.
In 5.1.1 the download mode remove the option to read files from sd card.
I tried to mount the sd card, but I had no luck.
The sd-card is located in /sys/block/mmcblk1
cat /proc/partitions show: 179 64 1921024 mmcblk1
Click to expand...
Click to collapse
mount -t vfat -o rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,g id=1023,fmask=0007,dmask=0007,allow_utime=0020,utf 8 /dev/block/vold/179:65 /data/media/1 , fail to mount
Click to expand...
Click to collapse

maxie.maverick said:
Hello
LG Security Error
Authentication Fail #9
10. I attempted to get to the recovery mode and deleted/erased all data & settings. No dice!
11. I'm still able to get to the download mode using the Volume-Up & USB connect method (& this is why I'm cursing myself at point "8" because I could have re-used the easy root method again to flash the img file).
12. I tried to use the "LG Mobile Support Tool", it recognizes the device correctly as "LGH950" but says V11z is the latest software update.
My question to experts: How SOL am I? I don't think LG would honor my warranty since the purchase is NOT from a authorized dealer/reseller. So no chance of warranty repair/replacement, no?
I looked everywhere (for close to 10 hours) for KDZ & TOT files to even attempt something. But I couldn't find anything for H950. Man, I hate AT&T so much now... Why couldn't they just leave the bootloader unlocked? Or LG (AT&T?)even provide the necessary files to start off with?
Could someone with more knowledge please offer any help? Meanwhile, I've pretty much resigned to be joining the queue full of others with bricked H950's...
Click to expand...
Click to collapse
hey have u been able to fix the issue ??
as i just got the ls996 sprint g flex 2, and some how i renamed wrong system file, and got the same issue
my phone is stuck on
SECURITY ERROR
AUTHENTICATION ERROR #9
please help me out if someone around found a solution

same problem here

Security error authentication fail #9 on Lg tribute 2 LGLS665
Hello,
I am stuck on security error authentication fail #9 on Lg tribute 2 LGLS665 at start up.
Got this error when rename the Lgstartupwizard.apk to Lgstartupwizard.bak.
Please Help.........

Same phone and problem as op. H950 V11X Rooted "Authentication Failure #9". Anyone ever figure this out?
We just need someone with the H950 KDZ

Maybe as a G2 user I'm overlooking something but - why not download the kdz from http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=XXXXXX (put your IMEI instead of Xs), eh?

Security Error
Thanks for the link ..
Its not helping me on Lg tribute 2 LGLS665. Below is the text received.
I have replaced the MEID number below with "X".
<response req_cmd="auth_model_check" status="OK">
<auth_model_check>
<result>2</result>
<esn>XXXXXXXXXXXXXX</esn>
<model>LGLS665</model>
<suffix>AVGMBLH</suffix>
<msn>XXXXXXXXX</msn>
<esn_date/>
<sw_version/>
<sw_url/>
<sw_locale_url/>
<sw_recommand_uri/>
<app_version/>
<app_url/>
<cs_em_flag>N</cs_em_flag>
<cs_em_uri>N</cs_em_uri>
<chip_type/>
<prod_type/>
<buyer>VGM</buyer>
<file_name/>
</auth_model_check>
</response>

mwedo said:
Maybe as a G2 user I'm overlooking something but - why not download the kdz from http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=XXXXXX (put your IMEI instead of Xs), eh?
Click to expand...
Click to collapse
Hey man, thanks for the suggestion, but tried that too. Did not get an option to download the kdz when I entered IMEI. Here's the screenshot I get.

hi sorry to bump in
but i made the huge mistake in renaming system apps, so now bootloop and same security error condition with a ls996 zv6,
1.- i know that don't even think to try to downgrade from zv6 to zv5 tot= Brick.
2.- is there a way to push, copy (aroma file manager, twrp file manager), in normal or stock recovery?
3.- is there a way to flash rootedsystem.img zv6 to the phone in: recovery, fastboot or even the command:
Step 11 flash commands:
For LS996 (ZV6/ZV7/ZV8)
Code:
dd if=/data/media/0/rootedsystem.img bs=8192 seek=58368 count=522240 of=/dev/block/mmcblk0, from another source, rather than from internal sd, because obviously i didn't copied to the device previously?
4.- already tried to flash from stock recovery, the ZV6 Update= update.zip but it gives an error to load because some system app not valid, i remember
please, if someone could help me and us with this problem
thank you very much indeed

atv said:
but i made the huge mistake in renaming system apps, so now bootloop and same security error condition with a ls996 zv6,
1.- i know that don't even think to try to downgrade from zv6 to zv5 tot= Brick.
2.- is there a way to push, copy (aroma file manager, twrp file manager), in normal or stock recovery?
3.- is there a way to flash rootedsystem.img zv6 to the phone in: recovery, fastboot or even the command:
Step 11 flash commands:
For LS996 (ZV6/ZV7/ZV8)
Code:
dd if=/data/media/0/rootedsystem.img bs=8192 seek=58368 count=522240 of=/dev/block/mmcblk0, from another source, rather than from internal sd, because obviously i didn't copied to the device previously?
4.- already tried to flash from stock recovery, the ZV6 Update= update.zip but it gives an error to load because some system app not valid, i remember
please, if someone could help me and us with this problem
thank you very much indeed
Click to expand...
Click to collapse
Only solution is to send it back to LG.
There is no way (yet) to flash with dd command from external SD.
and there is no other tot besides ZV5 and as you said thats a Hard brick.

hi
Alex_XV6700 said:
Only solution is to send it back to LG.
There is no way (yet) to flash with dd command from external SD.
and there is no other tot besides ZV5 and as you said thats a Hard brick.
Click to expand...
Click to collapse
thank you very much indeed for your answer, but as another reply i posted, as question in other thread, read this, maybe a solution if semi bricked, LG security error, in: zv06, zv07 or zv08, if it turns to be truth....
hi...... there is a forum member form another site that claims to have a zv8 rooted tot to sell, but i'm not sure if its true or reliable, claims that it fix bricks and its a 4.3 gb file, does anybody knows about it?
any help or guide please, thank you very much indeed
File name:LGLS996AT-00-ZV8-SPR-US-AUG-18-2015+01.zip
Android OS version:5.1
File Download:
Buy topic
Existing 2 People buy This topic is to be paid to the author 1000 Credits Before viewing
This TOT firmware contains the ROOT authority, after the success of flashing, ROOT success
TOT firmware flashing effect:
1.brick the repair
2, upgrade ROM
3, downgrade ROM
4, remove the lock screen password
5, Clear Google locks
6, restore factory settings
Tips:
1,This TOT firmware suitable for LGFlashTool.
2,After the purchase of the post, hidden content will be displayed, then you can free download attachments.
3,After purchase is successful, the second time to visit this page does not appear charges prompt.

atv said:
thank you very much indeed for your answer, but as another reply i posted, as question in other thread, read this, maybe a solution if semi bricked, LG security error, in: zv06, zv07 or zv08, if it turns to be truth....
hi...... there is a forum member form another site that claims to have a zv8 rooted tot to sell, but i'm not sure if its true or reliable, claims that it fix bricks and its a 4.3 gb file, does anybody knows about it?
any help or guide please, thank you very much indeed
File name:LGLS996AT-00-ZV8-SPR-US-AUG-18-2015+01.zip
Android OS version:5.1
File Download:
Buy topic
Existing 2 People buy This topic is to be paid to the author 1000 Credits Before viewing
This TOT firmware contains the ROOT authority, after the success of flashing, ROOT success
TOT firmware flashing effect:
1.brick the repair
2, upgrade ROM
3, downgrade ROM
4, remove the lock screen password
5, Clear Google locks
6, restore factory settings
Tips:
1,This TOT firmware suitable for LGFlashTool.
2,After the purchase of the post, hidden content will be displayed, then you can free download attachments.
3,After purchase is successful, the second time to visit this page does not appear charges prompt.
Click to expand...
Click to collapse
Well I wouldnt trust this.
But if this only flashes the system partition well it shouldnt be harmful. You could download the zv6 stock sys.img and flash it afterwards so you can ota update your phone to zv9 and then root again.
But like I said I wouldnt suggest that...

Alex_XV6700 said:
There is no way (yet) to flash with dd command from external SD.
Click to expand...
Click to collapse
Why no? You can use Push_file.exe.

MAXIMATOR said:
Why no? You can use Push_file.exe.
Click to expand...
Click to collapse
Please, elaborate....

jplum22 said:
Please, elaborate....
Click to expand...
Click to collapse
https://www.google.com.ua/#q=Push_file.exe
---------- Post added at 11:30 AM ---------- Previous post was at 11:26 AM ----------
LS9960 ZV6 with
LG Security Error
Authentication Fail #9
was secsessfuly unbricked without SDcard using Push_file.exe for send system.img to internal sdcard

Well this is new @MAXIMATOR at least it is to me.
If you let me I can add this to my back to stock forum.

Push_file.exe can not send files larger than 16 MB . the image to be split into files no more than 16 MB , after which they can be sent to the device . On the device, combined to one file.

MAXIMATOR said:
Push_file.exe can not send files larger than 16 MB . the image to be split into files no more than 16 MB , after which they can be sent to the device . On the device, combined to one file.
Click to expand...
Click to collapse
I've already tried. It doesn't work. Files can not be combined.
http://forum.xda-developers.com/g-flex2/help/to-unbrick-g-flex-2-ls996-t3286105

LG G4 H810 V21y EMMC Dump File | Hard Brick

Hi if someone have lg g4 h810 with software version MM V21y then plz create a dump of emmc using this method https://www.youtube.com/watch?v=op8Qk8TK4lI
and share with me i need emmc dump file because i hard bricked my phone and i know about this method https://forum.xda-developers.com/tmobile-g4/help/unbrick-lg-g4-h811-9008-qualcomm-t3456421 to fix my phone but i don't have emmc dump of my mobile if someone share with i really appreciate it ,

pchacker47 said:
Hi if someone have lg g4 h810 with software version MM V21y then plz create a dump of emmc using this method https://www.youtube.com/watch?v=op8Qk8TK4lI
and share with me i need emmc dump file because i hard bricked my phone and i know about this method https://forum.xda-developers.com/tmobile-g4/help/unbrick-lg-g4-h811-9008-qualcomm-t3456421 to fix my phone but i don't have emmc dump of my mobile if someone share with i really appreciate it ,
Click to expand...
Click to collapse
Only issue with that is I think the device would need to be rooted.. which it's not rootable. Which would explain most likely why there's not one already uploaded for the tons of users who attempted to downgrade.
Sent from my iPhone using Tapatalk

Yeah U right ! i hope when rooted method for LG G4 h810 release then maybe someone can help me

pchacker47 said:
Yeah U right ! i hope when rooted method for LG G4 h810 release then maybe someone can help me
Click to expand...
Click to collapse
Sadly it'll be very unlikely that root will be coming anytime soon for the H810 if at all at this moment.
Sent from my iPhone using Tapatalk

Secure booting error after sd card unbrick method
I bought used h811, but it has issue of restarting every time I tired to uninstall any app or tried to go to security setting. So I decided to downgrade it (I have no idea about ARB at that time), the device show h811-21y, So I download h811-10n firmware & use lgup to downgrade after it complete 100% it get bricked, and show qualcomm 9008 on the PC. I then open the device and found out it is h810 written on the motherboard.
I tried almost every qfil mbn files present on the internet but failed.
Then I tired this firmware
LGH810AT-01-V21y-310-410-JUN-20-2016-ARB03+0.rar
and use this youtube method to create raw programme & patch
watch?v=RhG02kmSelk
Then I use sd card method as this youtube method suggest
watch?v=kX2Fm1zEx5E
my device show sign of life but stuck in "secure booting error 1009"
At that point I am totally stuck since I does not get any help with this error on the internet

Sharp A1 / Z2 / FS8002

Dear Friends,
I've recently bought the Sharp A1 (LeEco Inside) and everything was running smooth until it feel on the ground.
The front screen is brooken!
I look everywhere for a replacement...even with SHARP tawain but no luck. No even in Aliexpress or ebay....I don't find parts for this phone anywhere.
Can someone provide some help?
Thanks in advance,
Sergio

Look ebay. Contact your local dealers and shops
Sent from my SHV-E210S using Tapatalk

[email protected] said:
Look ebay. Contact your local dealers and shops
Sent from my SHV-E210S using Tapatalk
Click to expand...
Click to collapse
I have done all off that....
No luck at all.
It's quite strange the lack of parts for this phone. I'm guessing that "Sharp" only gave the brand...but the hardware is from someone else.
I've already found out that the phone has the following names:
-Sharp A1
-Sharp Z2
-Sharp Aquos Z2
or even
FS8002.
Neverthless....i don't find lcd/digitizer/screen for it.
Thanks!

sasimoes said:
I have done all off that....
No luck at all.
It's quite strange the lack of parts for this phone. I'm guessing that "Sharp" only gave the brand...but the hardware is from someone else.
I've already found out that the phone has the following names:
-Sharp A1
-Sharp Z2
-Sharp Aquos Z2
or even
FS8002.
Neverthless....i don't find lcd/digitizer/screen for it.
Thanks!
Click to expand...
Click to collapse
Contact your phone manufacture
Sent from my SHV-E210S using Tapatalk

[email protected] said:
Contact your phone manufacture
Sent from my SHV-E210S using Tapatalk
Click to expand...
Click to collapse
I already have.
i've contacted "Commtiva Technology, Limited", the owners of Sharp and the makers of this model of phone in taiwan. And they answered...please contact SHARP Portugal (where I live).
Sharp in Portugal, kindly answered...."Sorry, we can't help, because we don't sell Sharp smartphones...only printers, and copiers...bla bla bla".

any help with an original sharp a1 firmware,or another firmware that can be installed on it?? i have same phone for 5 months and it begins to freeze from time to time for about 1 second,reseted to factory and worked fine for 2 days,then during the call i was hearing the sound of notification as i received messages,but no message arrived.reset again,all ok for a day,then freeze again. reset and ok for 3 days, and now i hear the same notification sounds, for couple of times during on a call. i want to put another android version if i can. now i have on it 6.0. i've tried to root it with all programs,not a chance. pls help. thx

Stock Firmware Download
Costi21 said:
any help with an original sharp a1 firmware,or another firmware that can be installed on it?? i have same phone for 5 months and it begins to freeze from time to time for about 1 second,reseted to factory and worked fine for 2 days,then during the call i was hearing the sound of notification as i received messages,but no message arrived.reset again,all ok for a day,then freeze again. reset and ok for 3 days, and now i hear the same notification sounds, for couple of times during on a call. i want to put another android version if i can. now i have on it 6.0. i've tried to root it with all programs,not a chance. pls help. thx
Click to expand...
Click to collapse
Checkout Sharp Mobile Taiwan...w.sharpmobile.com.tw/服務支援-z2

How to Root Sharp Z2?
How to Root Sharp Z2?
I have been search in google but nothing result.

ghopretz57 said:
How to Root Sharp Z2?
I have been search in google but nothing result.
Click to expand...
Click to collapse
Fastboot oem unlock and try flashing this https://drive.google.com/file/d/1XZdnNxF47kWY255igXlebuVIE9k26NpJ/view
msg me if it works and I will link you to Magisk that works for this model and the safetynet fix.

morgs640 said:
Fastboot oem unlock and try flashing this https://drive.google.com/file/d/1XZdnNxF47kWY255igXlebuVIE9k26NpJ/view
msg me if it works and I will link you to Magisk that works for this model and the safetynet fix.
Click to expand...
Click to collapse
not work...

ghopretz57 said:
not work...
Click to expand...
Click to collapse
WHats the problem?

morgs640 said:
WHats the problem?
Click to expand...
Click to collapse
I have been flash that twrp, but when i boot to recovery, it is still stock recovery.

ghopretz57 said:
I have been flash that twrp, but when i boot to recovery, it is still stock recovery.
Click to expand...
Click to collapse
Is your bootloader unlocked?

morgs640 said:
Is your bootloader unlocked?
Click to expand...
Click to collapse
Yes

ghopretz57 said:
Yes
Click to expand...
Click to collapse
When flashing recovery can u send me a screenshot of the cmd prompt after flashing? Or what does it say after flashing?

morgs640 said:
When flashing recovery can u send me a screenshot of the cmd prompt after flashing? Or what does it say after flashing?
Click to expand...
Click to collapse
The messages is:
Transfering OK
Writing OK
But when i boot to recovery, it is still stock recovery, not twrp.

Unbrick my phone?
OMG !
I own a sharp (fs8002) and playing around with it i was trying to root it, unlock the BL and install twrp so i can finally install a custom rom.
With not much info about this low supported phone, i used SP FlashTool and managed to erase everything from it. It is not responsive at all, i don`t see fastboot anymore , no revocery no nothing. SP Flashtool identify the device once plugged as mediatek usb port (com9) but i can not find anywhere the necessary files to UNBRICK it so to make it usable once again!
Is there someone who can help me revive and use this two months old phone ?

Sharp FS8002 stock rom
zeronavigator said:
OMG !
I own a sharp (fs8002) and playing around with it i was trying to root it, unlock the BL and install twrp so i can finally install a custom rom.
With not much info about this low supported phone, i used SP FlashTool and managed to erase everything from it. It is not responsive at all, i don`t see fastboot anymore , no revocery no nothing. SP Flashtool identify the device once plugged as mediatek usb port (com9) but i can not find anywhere the necessary files to UNBRICK it so to make it usable once again!
Is there someone who can help me revive and use this two months old phone ?
Click to expand...
Click to collapse
The stock rom at the Taiwan website (see my earlier post!) is an update-package. It contains a scatter-file that is not suitable for the flashtool...maybe someone can help with that. My guess is that it just does not have the proper format for flashtool. So someone should check that. The firmware seems to be complete, it's 2.1 Gigabyte. I applied the package via update from SD, it works:
Kernel-Version: 3.18.22+ Mon Sep 5 22:19:47 CST 2016
Build Number: NEXCNFN5801509051S release-keys

swrisch said:
The stock rom at the Taiwan website (see my earlier post!) is an update-package. It contains a scatter-file that is not suitable for the flashtool...maybe someone can help with that. My guess is that it just does not have the proper format for flashtool. So someone should check that. The firmware seems to be complete, it's 2.1 Gigabyte. I applied the package via update from SD, it works:
Kernel-Version: 3.18.22+ Mon Sep 5 22:19:47 CST 2016
Build Number: NEXCNFN5801509051S release-keys
Click to expand...
Click to collapse
I managed to download the update firmware file from taiwan website (TSP-1360-0-00WW-A03-update.zip) witch is a 1.92 gb file , but as you said the scatter file contained there is not recognized by SP Flash tool.
Is there a way to make a scatter file for fs8002 with a MT6797 chipset so i can proceed with the flashing ?

Sharp a1/z2 (fs8002) Stock rom via SPFlashTool
I am desperate.. Is there someone on this forum with this smartphone that can create a backup or has access and knowledge to Flash it with SPFlashtool ?
I managed to unlock bootloader, flashed a wrong recovery image and accidentally formatted bootloader and everything. The phone is not responding and i am unable to find anywhere the stock rom to flash it via SP Flash tool
I dont know what else to do..
HELP :crying:

Probable solution to VS990 motherboard with H900 or H901 software (marshmello hole)

Hi guyzz I think I've found a solution to the following problems:
1. VS990 board with H900 or H901 software.
2. Settings app crashes, Fingerprint sensor doesn't work, uninstalling an app causes soft boot
But I need help. So anyone willing please comment below.
P.S. as usual this is an experimental solution, so please try at your own risk.
Step 1: I need someone to put their phone in [Qualcomm HS-USB QDLoader 9008], because to my understanding this is the lowest level hardware control for the emmc in qualcomm evices.
Step 2: Once in this mode we need to follow the qfil solution to recover from the hardbrick and install the VS990 software.
But as I'm new to this, I've only found one way of entering the mode. (can't add the image due to xda restrictions -_- please help me with posting the image link )
If there is a software way to do this too, please comment below.

I have the same problem.
I tried many solutions but nothing better.
What is your solution ?

lukskajwoker said:
I have the same problem.
I tried many solutions but nothing better.
What is your solution ?
Click to expand...
Click to collapse
Hi, sorry for the late reply. But my solution is very very risky. It involves willingly hard bricking your phone and just flashing the device with VS990 software using the Q-fil method. But I need testers to actually prove that it works in general and not just on my phone.
But as I mentioned it is very very dangerous. So, unless you have the phone just lying around; I wouldn't suggest it.

OK,
I would try. Now phone is usless.

Mouldydroid said:
Hi, sorry for the late reply. But my solution is very very risky. It involves willingly hard bricking your phone and just flashing the device with VS990 software using the Q-fil method. But I need testers to actually prove that it works in general and not just on my phone.
But as I mentioned it is very very dangerous. So, unless you have the phone just lying around; I wouldn't suggest it.
Click to expand...
Click to collapse
Ok, what is it?
I'm more than willing to try.
I also have to mention that the ARB is not just in the system, it's also somehow modifying the hardware. I have 2 H900 (both are VS990) boards. One of them is 5.1 rooted, the other is H90021w. I put the 5.1's emmc on the other board and not working. Then I flash the H90021w on the former 5.1's emmc, the phone is working. I won't put the H90021w emmc to the other board as it will ruin the board.
Note: I have a medusa pro box, so I can flash the 90021w anytime if it's bricking.

Mouldydroid said:
Hi, sorry for the late reply. But my solution is very very risky. It involves willingly hard bricking your phone and just flashing the device with VS990 software using the Q-fil method. But I need testers to actually prove that it works in general and not just on my phone.
But as I mentioned it is very very dangerous. So, unless you have the phone just lying around; I wouldn't suggest it.
Click to expand...
Click to collapse
I think some of us are ready.

I am ready to do this, translate in 9008 if still relevant,
skype:zlocontrol
lg v10 h900&901

Hey, I'm really interested on how this turns out.
So from what I'm understanding, the idea is to get the LG V10 AT&T software flashed (with verizon motherboard) into usb qloader mode, and then to flash the verizon software or the original LG V10 H900 unto it?
I'd say its worth a go, but I don't have a medusa box in case it goes wrong ^^

Theamerix said:
Hey, I'm really interested on how this turns out.
So from what I'm understanding, the idea is to get the LG V10 AT&T software flashed (with verizon motherboard) into usb qloader mode, and then to flash the verizon software or the original LG V10 H900 unto it?
I'd say its worth a go, but I don't have a medusa box in case it goes wrong ^^
Click to expand...
Click to collapse
I've try the very possible way I can think of.
I've take out the EMMC and put a H900 lollipop inside it, not working. Not even any other FW will working, whether VS990 or H901, not after we put H90021w on it. And if I put that EMMC with android 5.1 on another VS990 board, which H90021w is never run on it, it's working fine.
I really suspect the ARB of H90021w is making physical changes on the board, and then only H90021w will working and probably newer FW too. I think that's our only chance. If we can find someone with newer FW willing to help, we can try it. Please check https://forum.xda-developers.com/att-lg-v10/general/calling-help-h90021z-h90022b-firmware-t3881691

Hi and thanks for the support. But due to utter desperation I got rid of the phone about 3 months ago. Now here is all of my research.
1. Get into HS USB mode by holding down both vol up+down....
2. Get QFIL to flash and it should work... P.S. flash proper ones... also dont flash versions below the one that it got messed up with
P.S. I did have a guy try out the board pinching method to get into HS USB... and somehow he got into fastboot and then I got out of contact with him

Mouldydroid said:
Hi and thanks for the support. But due to utter desperation I got rid of the phone about 3 months ago. Now here is all of my research.
1. Get into HS USB mode by holding down both vol up+down....
2. Get QFIL to flash and it should work... P.S. flash proper ones... also dont flash versions below the one that it got messed up with
P.S. I did have a guy try out the board pinching method to get into HS USB... and somehow he got into fastboot and then I got out of contact with him
Click to expand...
Click to collapse
Thanks..
But the problem is, there's no newer KDZ than H90021w around.

ardian1899 said:
Thanks..
But the problem is, there's no newer KDZ than H90021w around.
Click to expand...
Click to collapse
I know.... but my solution was... as you get into EDL mode all security goes to hell (theoretically) so theoretically you should be able top flash the original ROM that was meant for that specific motherboard, and not the one that was eventually installed during refurbish process
Now technically this should get rid of the unable to uninstall apps and the fingerprint bug....

Mouldydroid said:
I know.... but my solution was... as you get into EDL mode all security goes to hell (theoretically) so theoretically you should be able top flash the original ROM that was meant for that specific motherboard, and not the one that was eventually installed during refurbish process
Now technically this should get rid of the unable to uninstall apps and the fingerprint bug....
Click to expand...
Click to collapse
Maybe.. but the option is very limited on H900. And if we flash the H90021w firmware, there;s no way back.
Basically I really suggest anybody outside US to avoid buying an AT&T phones.

I need to add. Contrary to many believe here, motherboard with VS990 code may not only for verizon, but Tmo and AT&T as well. I've open many V10's board, not once I found H901 or H900 printed on the motherboard (many VS990 and a few F600). Even those H901 which working normally and able to run on the latest official nougat KDZ, are on VS990 boards too.

ardian1899 said:
I need to add. Contrary to many believe here, motherboard with VS990 code may not only for verizon, but Tmo and AT&T as well. I've open many V10's board, not once I found H901 or H900 printed on the motherboard (many VS990 and a few F600). Even those H901 which working normally and able to run on the latest official nougat KDZ, are on VS990 boards too.
Click to expand...
Click to collapse
Is there a way to identify for what deviceversion the version of VS990 board one might have really is.