If you have a v20 that has ARB 0, and are on a security patch greater than Dec 2016, I can help you root it if you want. The model doesn't matter, but it must be on ARB 0
To find your ARB, on the keypad dial: *#LGMENU#*model#
So for example, a H990: *#LGMENU#*990#
Choose SVC Menu then choose Version and scroll to the bottom. You will see Anti-Rollback Version.
Also, please include your model and current firmware version.
If you are ARB 0, and you have a KDZ for your model:
US996 (unlocked or US Cellular) KDZ
VS995 KDZ
H915 KDZ
H918 KDZ
H990(DS / N / T) KDZ
F800 (S / K / L) KDZ
Grab the patched LG UP, and before starting use the DUMP option to dump your current firmware (select ALL partitions). You will need it if there wasn't an exact KDZ for your phone. Not to mention that it makes it real easy to get back to the firmware you are on.
Download the KDZ for your model, flash it with LG UP (use partition DL mode), and then you can then root with dirtycow -- use the method that is specific for your model.
That leaves:
H910 - I already made a post for this model here.
LS997 - The post for the LS997 (up to and including ZV7, but NOT ZV8 or above) is here.
If you don't know what you are doing, send me a PM *BEFORE* you start. For example, the H990 can use the firmware from the other models, but everything may not work until you get the proper firmware back onto the phone.
If you have an H918 and are on 10p or later (ARB 1+), then you can use lafsploit 1.0
-- Brian
ARB 0
runningnak3d said:
The model doesn't matter, but it must be on ARB 0
-- Brian
Click to expand...
Click to collapse
I have ARB 0, how can I do this?
What do you think about a US Cellular V20? April 2017 security patch, software US99610h, build NRD90M.
Trying to figure out if it is still possible to root this thing, and what the optimal way is. Thanks for any help!
I have arb 2 on zv9 on my second ls997
ABR 1
@JerichoAbles You have to be willing to factory reset your phone. Unfortunately we need some files off of it before it ever boots. I will update the first post with that bit of info. If you are OK with that, I will post the full details when I am back at a PC. @TFKt44 The version, and security patch don't matter. The ARB version does. I don't know what ARB version us996 10h is. You will have to look.
For you folks on ARB 1 or 2, sorry, your carrier effed you good.
It will be possible to root ARB > 0 ... but that will take some time.
runningnak3d said:
@JerichoAbles You have to be willing to factory reset your phone. Unfortunately we need some files off of it before it ever boots. I will update the first post with that bit of info. If you are OK with that, I will post the full details when I am back at a PC. @TFKt44 The version, and security patch don't matter. The ARB version does. I don't know what ARB version us996 10h is. You will have to look.
For you folks on ARB 1 or 2, sorry, your carrier effed you good.
It will be possible to root ARB > 0 ... but that will take some time.
Click to expand...
Click to collapse
Yeah, I am abr01
Sent from my LG V20 using XDA Labs
runningnak3d said:
@JerichoAbles You have to be willing to factory reset your phone. Unfortunately we need some files off of it before it ever boots. I will update the first post with that bit of info. If you are OK with that, I will post the full details when I am back at a PC. @TFKt44 The version, and security patch don't matter. The ARB version does. I don't know what ARB version us996 10h is. You will have to look.
For you folks on ARB 1 or 2, sorry, your carrier effed you good.
It will be possible to root ARB > 0 ... but that will take some time.
Click to expand...
Click to collapse
My ARB is 0. Should've put that in my initial post.
@TKFT44 Yours is easy. There are two models of US996, the unlocked, and the US Cellular. You can flash either, but your phone may not be able to make calls if you flash the wrong one. Lucky for you, there are KDZs for both, so fixing your phone after it is rooted is a no brainer. Flash this. It is a KDZ for the unlocked US996 version that is still rootable. After you get your phone rooted, you can switch back to the 10h firmware manually, so that you keep root -- and then your modem will work. If you need step by step instructions, send me a PM.
Actually, I am pulling both down just to make sure that LG didn't use a different RSA key. That would brick your phone. I will send you a PM and let you know if it is safe.
As for everyone else. Please include:
Model
ARB version (even if it is > 0)
Current firmware version
I may not be able to help you right now, but if I don't have all of that info, I can't even try.
runningnak3d said:
Actually, I am pulling both down just to make sure that LG didn't use a different RSA key. That would brick your phone. I will send you a PM and let you know if it is safe.
Click to expand...
Click to collapse
I previously flashed an unlocked 996 on my usc v20 and it worked fine it was just a little wonky but it was safe
okay I tried flashing with DirtyElf but when I get to the factory reset part it still gives me the triangle and no boot how can I reflash
Mine is:
H990ds
ARB Version 0
Software Version H990ds10g-IDN-XX
I don't even get a menu to pop up or anything.
@JerichoAbles You flashed the 10f KDZ and then followed DirtyElf?
@myisn Yours is easy as well, you have a KDZ: link. Flash it, and then root with the standard H990DS root procedure. Then if you want to upgrade to the latest firmware, you can do it manually and keep root. Again, I will be glad to help with that part.
Help rooting
I have an unlocked US996 (non US Cellular) V20 with the December 2016 patch (no surprise there). I understand the device is rootable and that I can get more recent patches by rooting it, but even reading up on the subject I don't feel confident that I have the knowledge and background to do so.
For instance are we talking about entering *#LGMENU#*996# on the dialer keypad?
---------- Post added at 04:03 PM ---------- Previous post was at 03:56 PM ----------
I might add that I can't enter alphabetical characters on the dialer keypad.
SFrsfair said:
I have an unlocked US996 (non US Cellular) V20 with the December 2016 patch (no surprise there). I understand the device is rootable and that I can get more recent patches by rooting it, but even reading up on the subject I don't feel confident that I have the knowledge and background to do so.
For instance are we talking about entering *#LGMENU#*996# on the dialer keypad?
---------- Post added at 04:03 PM ---------- Previous post was at 03:56 PM ----------
I might add that I can't enter alphabetical characters on the dialer keypad.
Click to expand...
Click to collapse
that's not how it works, you type the numbers that correspond with the alphabetical letters, Also, you can just unlock your bootloader at developer.lge.com
---------- Post added at 07:03 PM ---------- Previous post was at 07:01 PM ----------
runningnak3d said:
@JerichoAbles You flashed the 10f KDZ and then followed DirtyElf?
Click to expand...
Click to collapse
Yes, but after the fastboot part I never took the battery out so I think the permissions disappeared but I can't reflash I don't know how please help
What happens when you try to enter download mode?
runningnak3d said:
What happens when you try to enter download mode?
Click to expand...
Click to collapse
Well originally it wouldn't work but it's become apparent to me that it was because my phone did not have enough charge because the corrupt triangle and charging from my computer would not work but I'll try again and get back to you
Yea, you have to make sure your phone is charged good, it disables charging when certain events are triggered, and I don't have a full list of them, so when you are flashing always make sure you have a full charge. If your phone dies part way through flashing part of the boot loader .... there is no fixing that right now. Luckily your phone is responding, so you should be OK.
Okay so I did everything right this time, but now it's not sending me to twrp, it's just booting like normal
Related
Hello, I was searching for KDZ and was able to stumble into this model LG V20 H910PR.
Since I don't have a H910 model to test this. Anyone here who has a bricked ATT H910 that would like to test if this KDZ would work.
Link: https://lg-firmwares.com/lg-h910pr-firmwares/
Its been tested. It breaks radio
me2151 said:
Its been tested. It breaks radio
Click to expand...
Click to collapse
Can you unroot / get it back to stock though? *even if it breaks radio?*
tcanute said:
Can you unroot / get it back to stock though? *even if it breaks radio?*
Click to expand...
Click to collapse
Yes but its pointless without radio. BTW when I say radio I'm talking about cell service. You will get no service and its impossible to fix while in the stock state. That's why its pointless
me2151 said:
Its been tested. It breaks radio
Click to expand...
Click to collapse
glad to hear that. there's still hope for those who bricked their device from faulty OTA updates
Edit: aww i thought it was music radio. too bad.
h910pr
i have successfully restored to the h910pr kdz with working radio (cell signal). id love to get back to a rooted firmware but for now it was at least a viable way to debrick my phone.
HOW!
predheadtx said:
i have successfully restored to the h910pr kdz with working radio (cell signal). id love to get back to a rooted firmware but for now it was at least a viable way to debrick my phone.
Click to expand...
Click to collapse
How!? Is your phone an h910 running on at&t? Is there anything specific you did when restoring the kdz or did you follow a specific guide? What does your "About Phone" show your phone as being?
Sorry for all the questions, that's just kinda exciting to hear
tcanute said:
How!? Is your phone an h910 running on at&t? Is there anything specific you did when restoring the kdz or did you follow a specific guide? What does your "About Phone" show your phone as being?
Yes im on at&t and have had no issues with data, text, or calling. my damn watch still wont sync to my phone but that was a prior issue as well. i scoured the internet for everything i could get my hands on and what i received was a bunch of guesses mostly lol. so i modified the h918 lgup dll to allow me to flash my h910. it accepted the h910pr software without issues. other than being back on a locked boot-loader with no way out in sight. if you can deal with a rare instance of a notification being in spanish then go for it. ask and ill post my tools folder somewhere, so you can try the exact versions of lgup i used and the tweaked dll
Click to expand...
Click to collapse
predheadtx said:
Yes im on at&t and have had no issues with data, text, or calling. my damn watch still wont sync to my phone but that was a prior issue as well. i scoured the internet for everything i could get my hands on and what i received was a bunch of guesses mostly lol. so i modified the h918 lgup dll to allow me to flash my h910. it accepted the h910pr software without issues. other than being back on a locked boot-loader with no way out in sight. if you can deal with a rare instance of a notification being in spanish then go for it. ask and ill post my tools folder somewhere, so you can try the exact versions of lgup i used and the tweaked dll
Click to expand...
Click to collapse
Sure if you don't mind. That would be great.
tcanute said:
Sure if you don't mind. That would be great.
Click to expand...
Click to collapse
okay, uploading at 600kb/s :/ ill edit this post with the link when its done. just install lgup and the lg mobile drivers, then paste this lgup folder over the lgup folder in your program files. what ive done is used components from different version of lgup and renamed the h918.dll to lgcommon.dll and placed it in a common folder, then created an h910 folder as well. then put the phone in download mode and lgup will recognize it as an h910 but will allow you to flash the h910pr.kdz. it was a simple little hack together that anyone can replicate. maybe someone could write up a good tutorial on it.
@predheadtx Just curious why you didn't flash the H915 KDZ since the H910 and H915 are the same phone: https://fccid.io/document.php?id=3134555 <-- notice additional model names.
At least you can root H915...
-- Brian
This thread doesn't belong in development. Needs to be moved to general.
runningnak3d said:
@predheadtx Just curious why you didn't flash the H915 KDZ since the H910 and H915 are the same phone: https://fccid.io/document.php?id=3134555 <-- notice additional model names.
At least you can root H915...
-- Brian
Click to expand...
Click to collapse
hmm hadn't realized the h910/918/915 were all the same. i only knew about the 918 being the same. does it use the same mobile bands as att? i guess ill give it a try.
With the stock firmware installed, they must use the same frequencies, or the FCC would have to test them separately.
As far as I know the H915 (In addition to being the Canadian model) is also the AT&T Go Phone. So it is to AT&T was the MSXXX (for example MS631 (Metro) and H631 (identical phone with T-Mobile firmware) are to MetroPCS / T-Mobile.
When I had MetroPCS, I would flash T-Mobile firmware because they usually got the updates quicker than Metro did.
In this case it looks like LG made generic GSM/LTE model for the H910/H915/H918. What is funny is that their carrier free phone US996 is different.
This weekend I plan on flashing H918 since I use T-Mobile, and then I can root without having this effed up bootloader.
On a different note, I 100% agree with @12MaNy that this thread does not belong here.
runningnak3d said:
With the stock firmware installed, they must use the same frequencies, or the FCC would have to test them separately.
As far as I know the H915 (In addition to being the Canadian model) is also the AT&T Go Phone. So it is to AT&T was the MSXXX (for example MS631 (Metro) and H631 (identical phone with T-Mobile firmware) are to MetroPCS / T-Mobile.
When I had MetroPCS, I would flash T-Mobile firmware because they usually got the updates quicker than Metro did.
In this case it looks like LG made generic GSM/LTE model for the H910/H915/H918. What is funny is that their carrier free phone US996 is different.
This weekend I plan on flashing H918 since I use T-Mobile, and then I can root without having this effed up bootloader.
On a different note, I 100% agree with @12MaNy that this thread does not belong here.
Click to expand...
Click to collapse
im attempting to flash the 915 .kdz right now, im looking for a workaround to lgup telling me the model numbers are mismatched. ill make attempts with the 918 firmware as well.
predheadtx said:
im attempting to flash the 915 .kdz right now, im looking for a workaround to lgup telling me the model numbers are mismatched. ill make attempts with the 918 firmware as well.
Click to expand...
Click to collapse
to anyone concerned here is the files i promise. ive hat not luck with the 915 or 918 firmware from the 910pr, maybe im missing something but nothing i do works.
https://mega.nz/#!YLxDlDBA!4SNhULZB-5rWCIUk6EJK0GB9Yul3uxGx3d_vSa4TnI8
Have you tried: https://forum.xda-developers.com/lg-g5/development/uppercut-lgup-loader-g5-variants-t3511295
I have not found a phone yet that can't be spoofed with it...
honestly now that ive seen that post, i had mistakenly thought the version of lgup i was using had been patched WITH LGuppercut. thank you for correcting me!
have been messing with uppercut. not finding any way to "spoof" anything.
edited again- luckily i had already gotten att to warranty the phone for a defect it had, but trying to flash h915 using the port 41 trick has officially bricked my phone. IT does absolutely nothing now. when plugged in to a computer windows recognizes as a qualcom usb qloader but the phone does nothing else.
Spoof was probably the wrong word to use. I mean that I have never had an LG phone that LGUP alone would not recognize, but when launched with Uppercut also would not be recognized.
You may have a corrupt misc partition. I have had to wipe the misc and the fota partitions several times due to bad flashes:
If using a confirmed working device with UPPERCUT but your device is still not detected in LGUP you may have a "corrupted" misc partition...
as a last resort it has been confirmed in post #70 that wiping misc then booting into download mode allows the device to be detected with UPPERCUT + LGUP 1.14. This may not always work. And without root you cannot do this.
Click to expand...
Click to collapse
Since that requires root, you may be in a pickle.
runningnak3d said:
Spoof was probably the wrong word to use. I mean that I have never had an LG phone that LGUP alone would not recognize, but when launched with Uppercut also would not be recognized.
You may have a corrupt misc partition. I have had to wipe the misc and the fota partitions several times due to bad flashes:
Since that requires root, you may be in a pickle.
Click to expand...
Click to collapse
having lgup recognizing the device has never been the issue. its cross flashing firmware's that it refuses to do.
So Ive been trying to root v20 for some time now. Ive followed instructions up to point of step 4. I type in terminal emulator applypatch /system/bin/atd /storage/emulated/0/dirtysanta. Nothing happens
Next it reads
Filenames may be of the form
MTD:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...
to specify reading from or writing to an MTD partition.
Have I done something wrong? Has something changed? any help would be greatly appreciated.
You are patched. No root for you.
ZV5 or earlier only.
Lg v20 vs995
So I"ve been trying to root v20 for some time now. I've followed instructions up to point of step 4. I type in terminal emulator applypatch /system/bin/atd /storage/emulated/0/dirtysanta. Nothing happens
Next it reads
Filenames may be of the form
MTD:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>: ...
to specify reading from or writing to an MTD partition.
I've tried it alot of times again and again but it says same all the time
Please help me
Roll back to a version that has the December 2016 security patch or earlier. There are several threads around here that tell you what version you need to be on (heck I wrote one of them) -- search is your friend.
-- Brian
runningnak3d said:
Roll back to a version that has the December 2016 security patch or earlier. There are several threads around here that tell you what version you need to be on (heck I wrote one of them) -- search is your friend.
-- Brian
Click to expand...
Click to collapse
Can I roll back from ZVD? I SEARCHE AND COULDN'T FIND ANYTHING. Multiple sources have told me its impossible.
rayulove69 said:
Can I roll back from ZVD? I SEARCHE AND COULDN'T FIND ANYTHING. Multiple sources have told me its impossible.
Click to expand...
Click to collapse
No you can't roll back and if you try anyway you will brick. Theres basically no hope of post zv7 ls997 getting rooted ever
runningnak3d said:
It has been confirmed that If you have the engineering bootloader, AND have a fusing device (which AFAIK all LS997 are), AND install firmware that is ARB 1 or greater, it will brick your phone.
If you are ARB 1 or greater, and install the eng. bootloader -- brick.
When I was doing testing on ARB and the engineering bootloader, I was doing it on a non-fusing device, so my results are null and void.
So, we need a method of unlocking the production bootloader -- and there is, just not the LS997 aboot. It would require flashing either the H915 or US996 aboot, and you can't do that due to ARB.
Unless an engineering aboot leaks that is ARB 1 or an engineering boot leaks that has dm-verity disabled, or a flaw is found in the current aboot, I do not see the LS997 getting root.
EDIT: not trying to keep too much hope alive, but if when Oreo is released, they increment ARB on either the H915 or US996 and DON'T increment it on the LS997, then you would be able to flash either aboot and root....
-- Brian
Click to expand...
Click to collapse
Hi all,
I was downgrading to root my lv v20 to older firmware (used lgup) and now my phone wont boot up. No LG logo. nothing... and no its not the battery. lol.. any ideas? I'm still under the 1yr warranty period so I might send it.. What's weird is that I used this method before without any issues..
what version were you at before trying to downgrade?
dimm0k said:
what version were you at before trying to downgrade?
Click to expand...
Click to collapse
10j...
You didn't need to downgrade 10j -- it was rootable.
Something must have happened while the phone was flashing, and either the XBL or ABOOT didn't get written (LG UP erases before it writes), and now you have a brick that only LG can fix.
If you have a warranty with either your carrier, or the phone is still covered by LG, open an RMA. Unfortunately, there is no way to fix that for the average person anymore -- booting from SD card has been pulled.
-- Brian
runningnak3d said:
You didn't need to downgrade 10j -- it was rootable.
Something must have happened while the phone was flashing, and either the XBL or ABOOT didn't get written (LG UP erases before it writes), and now you have a brick that only LG can fix.
If you have a warranty with either your carrier, or the phone is still covered by LG, open an RMA. Unfortunately, there is no way to fix that for the average person anymore -- booting from SD card has been pulled.
-- Brian
Click to expand...
Click to collapse
o wait.. i wasnt on 10j.. i was downgrading to 10j... I was on 10p i believe.. but yea.. i called t-mobile.. i still had 1yr warranty.. (i think it ends mid dec)..
You got bit by ARB (anti-rollback). 10p is ARB version 1, 10j is ARB version 0.
-- Brian
runningnak3d said:
You got bit by ARB (anti-rollback). 10p is ARB version 1, 10j is ARB version 0.
-- Brian
Click to expand...
Click to collapse
suck a duck.. didnt even think that was an option.. well, lucky i still had warranty..
Hi all,
Can somebody confirm if the H910 firmware can be installed on H910PR.
Thanks.
What is your ARB version? If it is anything greater than zero, then no.
-- Brian
Hi, sorry but I don't know how to check that.
Hi. I have lg h910pr anti roll back 0. Can I flash the h915 filmware? thank
I assume you are trying to root? If so, then make sure that you dump your existing firmware first so that you can restore it if needed.
-- Brian
runningnak3d said:
I assume you are trying to root? If so, then make sure that you dump your existing firmware first so that you can restore it if needed.
-- Brian
Click to expand...
Click to collapse
do not. is to try another filmware. no root Can it be installed?
---------- Post added at 03:01 PM ---------- Previous post was at 02:55 PM ----------
Actually I want to try another firmware compatible with the h910pr.
You are taking a huge risk if you try it. If you have to ask if you can cross flash firmware, then you really shouldn't be doing it.
With that said, the H915 firmware will flash and boot on an H910PR. Now, I have no idea if your phone will work (calls, data, etc). If it doesn't, then you will need to revert which may mean rooting, and you definitely will need to have dumped your phone.
If you flash a version that has a higher ARB than the H910PR, you will have no way to fix your phone if things don't work out.
Bottom line, don't risk it unless you are prepared to have a phone that may not be usable for anything other than a tablet or even worse, a brick.
-- Brian
runningnak3d said:
You are taking a huge risk if you try it. If you have to ask if you can cross flash firmware, then you really shouldn't be doing it.
With that said, the H915 firmware will flash and boot on an H910PR. Now, I have no idea if your phone will work (calls, data, etc). If it doesn't, then you will need to revert which may mean rooting, and you definitely will need to have dumped your phone.
If you flash a version that has a higher ARB than the H910PR, you will have no way to fix your phone if things don't work out.
Bottom line, don't risk it unless you are prepared to have a phone that may not be usable for anything other than a tablet or even worse, a brick.
-- Brian
Click to expand...
Click to collapse
okay. I get it. my phone shows 0 in anti rollback. I will not risk it.
need help to go back to h910 stock...
hi brian.. i saw u helping and know everything about this phone.. I m actually running h910pr firmware on my h910.. i ended up to this long ago when i was trying to root 910 but got a scrambled boot screen and wanted to switch back to stock,, i couldnt find a procedure to that so i did h910pr on my phone.. but now i really want to go back to 910 coz 910pr reception aint very good,, anyway i can go back to 910 or any possiblities to go to 915? i heared 915 works on 910 without any problem...
H910PR here and I can confirm that everything that works on H910 regarding root, roms or anything works perfectly the same way on my device even Data and LTE.
my fon is a h910(att) but because all other KDZ got rejected but the h910PR I had flashed that one - now it behaves like a 910PR, but without mobile network (LTE GPRS etc; only wifi works).
How exactly do I cross flash 915 or 996 onto my h910 / h910PR ? Nothing seems to work.
Planning to get a refurbed V20 H910.
Can this phone be rooted and bootloader unlocked and TWRP installed??
I read something that this ARB will prevent some or all of these things.
Even having read every thing I am still VERY confused. Thanks.
boowho said:
Planning to get a refurbed V20 H910.
Can this phone be rooted and bootloader unlocked and TWRP installed??
I read something that this ARB will prevent some or all of these things.
Even having read every thing I am still VERY confused. Thanks.
Click to expand...
Click to collapse
Start here - https://r.tapatalk.com/shareLink?ur...share_tid=3664500&share_fid=3793&share_type=t
All H910 are ARB - 0
Sent from my PH-1 using Tapatalk
ARB is LG's implementation of Anti-rollback protection. At a low level, it involves blowing a fuse on the SoC (not as violent as it sounds) when x software version is installed, preventing rollback to an earlier version.
For one or two variants, going past stock v10p (I think) triggers ARB to be incremented to 1 from 0, meaning they can't go back to any stock version earlier than said 10p or a custom ROM that's aware of ARB being tripped.
The linked thread above is a good place to start.
clsA said:
Start here - https://r.tapatalk.com/shareLink?ur...share_tid=3664500&share_fid=3793&share_type=t
All H910 are ARB - 0
Sent from my PH-1 using Tapatalk
Click to expand...
Click to collapse
ALL H910 ARB = 0 Does that mean I don't have to be concerned with it? I may want to UN-root and relock the BL in the future?
clsA said:
Start here - https://r.tapatalk.com/shareLink?ur...share_tid=3664500&share_fid=3793&share_type=t
All H910 are ARB - 0
Sent from my PH-1 using Tapatalk
Click to expand...
Click to collapse
Redline said:
ARB is LG's implementation of Anti-rollback protection. At a low level, it involves blowing a fuse on the SoC (not as violent as it sounds) when x software version is installed, preventing rollback to an earlier version.
For one or two variants, going past stock v10p (I think) triggers ARB to be incremented to 1 from 0, meaning they can't go back to any stock version earlier than said 10p or a custom ROM that's aware of ARB being tripped.
The linked thread above is a good place to start.
Click to expand...
Click to collapse
Thanks.
boowho said:
ALL H910 ARB = 0 Does that mean I don't have to be concerned with it? I may want to UN-root and relock the BL in the future?
Click to expand...
Click to collapse
No problems.
Correct. No need to worry about it on any ARB = 0 variants.
Redline said:
No problems.
Correct. No need to worry about it on any ARB = 0 variants.
Click to expand...
Click to collapse
Thanks.
Still issues.
The phone arrived today and though it was advertised as UNLOCKED, it is AT&T branded.
As a result of AT&T fooling further with their mods I cannot get into recovery mode using the normal VOL DN + POWER button combination.
Any way to get past the AT&T crap so as to unlock BL, install TWRP and root this phone??
Or am I just screwed??
Boowho??
boowho said:
The phone arrived today and though it was advertised as UNLOCKED, it is AT&T branded.
As a result of AT&T fooling further with their mods I cannot get into recovery mode using the normal VOL DN + POWER button combination.
Any way to get past the AT&T crap so as to unlock BL, install TWRP and root this phone??
Or am I just screwed??
Boowho??
Click to expand...
Click to collapse
Doing a quick search online would tell you the H910 is an AT&T branded V20 variant. You'd want something like the H990DS or the US996 which is unlocked for the US market (someone correct me if I'm wrong with this one).
Doing a quick search on the V20 forums will show you multiple guides to get started if you intend to stick with the H910.
Specifically, the DirtySanta bootloader unlock & root guide is what I'd recommend.
Following that will get you on the road to a custom ROM.
If ADB Debugging is enabled and you have ADB installed on your PC, you can plug the phone in and do 'adb reboot recovery' from your computer which will reboot the phone to recovery.
Redline said:
Doing a quick search online would tell you the H910 is an AT&T branded V20 variant. You'd want something like the H990DS or the US996 which is unlocked for the US market (someone correct me if I'm wrong with this one).
Doing a quick search on the V20 forums will show you multiple guides to get started if you intend to stick with the H910.
Specifically, the DirtySanta bootloader unlock & root guide is what I'd recommend.
Following that will get you on the road to a custom ROM.
If ADB Debugging is enabled and you have ADB installed on your PC, you can plug the phone in and do 'adb reboot recovery' from your computer which will reboot the phone to recovery.
Click to expand...
Click to collapse
Dirty santa will only work if his security patch level is prior to Dec 2016, which is doubtful, and you can't downgrade as there are no kdz for the 910
Sent from my LG-H910 using XDA Labs
Well, even though I thought I did, I apparently didn't do my homework well enough.
I can get it into Download mode, but then it just sits there expecting an update. I assume LGUP or something similar needs to be on my PC, right??
Maybe I can salvage this thing yet.
But maybe the EBay seller may be willing for a return; hopefully. Either way I'd be happy.
Changed to US996
I've been able to swap the H910 for a US996. I found it interesting that the bootloader and download screens were exactly the same, since I thought this lock out was done by AT&T.
But I have the same question as before. Will the US996 phone have the ARB = 0 or otherwise??
Then, assuming I decide to unlock BL, install TWRP and root are any certain methods better than others? I't appears to me that there have been more than one technique posted here.
The phone is used so has no warranty from LG, so I figured on using LG's own procedure to unlock BL. Good idea -Bad idea??
Obviously, I don't want to brick this device. I've hacked my old Zenfone 2 until it was "exhaused" and I'd know my way around that phone in the dark.
But I'm breaking all new ground with the V20
Thanks.
Boowho??
H910, H915, VS995 and US996 are identical devices and fully cross-flashable. Use the patched LGUP to flash a US996 KDZ onto the phone, and you'll have an unlocked phone
boowho said:
I've been able to swap the H910 for a US996. I found it interesting that the bootloader and download screens were exactly the same, since I thought this lock out was done by AT&T.
But I have the same question as before. Will the US996 phone have the ARB = 0 or otherwise??
Then, assuming I decide to unlock BL, install TWRP and root are any certain methods better than others? I't appears to me that there have been more than one technique posted here.
The phone is used so has no warranty from LG, so I figured on using LG's own procedure to unlock BL. Good idea -Bad idea??
Obviously, I don't want to brick this device. I've hacked my old Zenfone 2 until it was "exhaused" and I'd know my way around that phone in the dark.
But I'm breaking all new ground with the V20
Thanks.
Boowho??
Click to expand...
Click to collapse
The 996 is arb0
Sent from my LG-H910 using XDA Labs
boowho said:
I've been able to swap the H910 for a US996. I found it interesting that the bootloader and download screens were exactly the same, since I thought this lock out was done by AT&T.
But I have the same question as before. Will the US996 phone have the ARB = 0 or otherwise??
Then, assuming I decide to unlock BL, install TWRP and root are any certain methods better than others? I't appears to me that there have been more than one technique posted here.
The phone is used so has no warranty from LG, so I figured on using LG's own procedure to unlock BL. Good idea -Bad idea??
Obviously, I don't want to brick this device. I've hacked my old Zenfone 2 until it was "exhaused" and I'd know my way around that phone in the dark.
But I'm breaking all new ground with the V20
Thanks.
Boowho??
Click to expand...
Click to collapse
995,996 and 910 does not have arb 1 now,and even you brick your v20, in most case you can unbrick it in 9008 mode