So my beloved LS997's charging port has given up the good fight and no longer works, so I have been hamstringing it along charging batteries outside the phone using an external battery charger... And bought myself a "New Unlocked LS997" that came with Android 7.0 with the intention of rooting it and flashing LineageOS on it and being good to go.
Problem though, Dirty Santa doesn't seem to work beyond step one, and when I attempt to flash a different KDZ per other rooting methods I am getting a SPC code error preventing me from flashing said KDZ.
Anyone have any luck rooting these devices? Thanks in advance!
Americancosworth said:
So my beloved LS997's charging port has given up the good fight and no longer works, so I have been hamstringing it along charging batteries outside the phone using an external battery charger... And bought myself a "New Unlocked LS997" that came with Android 7.0 with the intention of rooting it and flashing LineageOS on it and being good to go.
Problem though, Dirty Santa doesn't seem to work beyond step one, and when I attempt to flash a different KDZ per other rooting methods I am getting a SPC code error preventing me from flashing said KDZ.
Anyone have any luck rooting these devices? Thanks in advance!
Click to expand...
Click to collapse
Use the How to root ZV7 guide by runningnaked. Also you need to flash the vs995 file with Uppercut or the modified Uppercut floating around somewhere. If you are past ZV7 you can't do anything for root. With Uppercut make sure your phone is all set for adb and properly connected. Then also try to open Uppercut as administrator. It will show dump system and other options at bottom if loaded correctly.
If us996...then try the official lg unlock bootloader method. What I described is for ls997.
Ls997 cross flashed to us996...idk. depends on what software version if that's that case.
As for adb...when connected to PC make sure to also have photo transfer selected instead of file tranfer.
If it's an LS997 that's been cross-flashed to US996 firmware, then it should be rootable because if it weren't , then you wouldn't even be able to cross-flash anything on it.
Americancosworth said:
Problem though, Dirty Santa doesn't seem to work beyond step one, and when I attempt to flash a different KDZ per other rooting methods I am getting a SPC code error preventing me from flashing said KDZ.
Anyone have any luck rooting these devices? Thanks in advance!
Click to expand...
Click to collapse
I used the modified LGUP found over here.
Make sure you put the phone in download mode (with the phone powered off, hold down volume-up, then connect the phone via USB to your computer) before running LGUP. The rooting guides don't mention this since they assume you know how to downgrade firmware before starting the main rooting procedure.
C D said:
If it's an LS997 that's been cross-flashed to US996 firmware, then it should be rootable because if it weren't , then you wouldn't even be able to cross-flash anything on it.
I used the modified LGUP found over here.
Make sure you put the phone in download mode (with the phone powered off, hold down volume-up, then connect the phone via USB to your computer) before running LGUP. The rooting guides don't mention this since they assume you know how to downgrade firmware before starting the main rooting procedure.
Click to expand...
Click to collapse
My mistake...yes download mode before lg up...not adb. True on the cross flashed and being rootable.
Related
I tried follow 2 separate quick or auto-root guides for this phone, but after performing the room, I am no longer able to access the device via USB or use the WI-FI on the device. The Wi-Fi gives an invalid sim card as the excuse (I don't have an active one right now), and the USB isn't working even after installing drivers and software from Samsungs site, and messing with the usb menu numbers. USB works in order to root the device, and it worked prior to rooting. HELP?!
Or you flashed the wrong version of CF auto-root or you need to remove Knox.
http://forum.xda-developers.com/galaxy-s4/general/scriptknoxout-complete-brutal-knox-t2807172
Thanks, finally got the phone rooted, what is the easiest way to unlock the phone from this point? It's at 4.4.4 model M919. I can only find guides for 4.4.2, but those do not work. Is the best option to flash to an older version? How is that done?
I'm following this guide, http://forum.xda-developers.com/showthread.php?t=2283068
ZacD said:
Thanks, finally got the phone rooted, what is the easiest way to unlock the phone from this point? It's at 4.4.4 model M919. I can only find guides for 4.4.2, but those do not work. Is the best option to flash to an older version? How is that done?
I'm following this guide, http://forum.xda-developers.com/showthread.php?t=2283068
Click to expand...
Click to collapse
You probably need to temporarily flash an old modem. Then apply that procedure and then flash back a correct modem.
Appears to just be latest Google security updates.. (April 2017).. 700mb or so.. not much info from Verizon or LG on this.
Doesn't look like the kernel changed but maybe a new baseband.
Can someone try and snag a system image of it?
Just a heads up, the latest verizon update 14b patches the DirtySanta exploit. But it's not a huge deal, one can simply downgrade back to 12a or 13a with the kdz files and uppercut, then gain root access (I just did this, works fine).
Other than that exploit patch are there any reasons not to update?
Thanks.
bond32 said:
Just a heads up, the latest verizon update 14b patches the DirtySanta exploit. But it's not a huge deal, one can simply downgrade back to 12a or 13a with the kdz files and uppercut, then gain root access (I just did this, works fine).
Click to expand...
Click to collapse
Thanks I was about to ask if I can downgrade my wife so I can root and unlock. Thanks for taking the risk. ?
Running Weta-Werewolf 4.8.5-1.0 VS995 hyb
666syco said:
Thanks I was about to ask if I can downgrade my wife so I can root and unlock. Thanks for taking the risk. ?
Running Weta-Werewolf 4.8.5-1.0 VS995 hyb
Click to expand...
Click to collapse
Yeah, it would be nice if we could get a system image of the 14b. Don't have a clue how though
Guide?
bond32 said:
Just a heads up, the latest verizon update 14b patches the DirtySanta exploit. But it's not a huge deal, one can simply downgrade back to 12a or 13a with the kdz files and uppercut, then gain root access (I just did this, works fine).
Click to expand...
Click to collapse
Is there a guide on how to do this?
Fresh Micks said:
Is there a guide on how to do this?
Click to expand...
Click to collapse
I replied to your other thread... https://forum.xda-developers.com/v20/help/help-rooting-lg-v20-verizon-14b-software-t3630575
Download Uppercut, LG UP, and USB drivers from here:
https://www.google.com/amp/s/forum.x...-t3511295/amp/
Download the 12a kdz from here: https://lg-firmwares.com/lg-vs995-firmwares/
Install USB drivers to PC. Turn phone off. Hold volume up while phone is off and plug in USB cable to PC. Turn off antivirus stuff including Windows defender. Run Uppercut according to directions from thread and using the 12a kdz. When Uppercut loads, make sure to select "upgrade". Then you're good.
It won't wipe your data so when your phone reboots it will have a force close panic attack. What you do from here varies, but you're now on 12a which is exploit-able. What I would do is push past the force closes and go into settings to factory reset. Then let your phone do its thing. When it's back to set up, just bypass the setup as quick as possible and put the phone into airplane mode - this will keep the phone from trying to download Verizon bloatware (dtignite) and updates as this happens regardless of entering your account info in or not. Make sure you enable USB debugging and verify ADB is functioning and you can do the exploit from here.
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.
Hi, i hope this is the right forum, i am a noobie at LG flashing, been reading some, but it is a little confusing (coming from Oneplus One), so i bought an LG V20 - US996, and i thought i could unlock the bootloader via LG Developers website, so i started the process, install drivers, follow the instructions, etc. then when i submitted IMEI and device id i got an error, message, stating :your device (TEST_GPIN) does not support unlocking bootloader", i emailed LG with the question but still no answer, so i did a little research and found out that my phone is a demo unit or something like it. on the inside sticker it says "not for sale" the model on the sticker is US996. i have attached some screens that show software versions etc.
so basically i would like to know if anyone knows if i am out of luck and cant unlock the bootloader to flash twrp and root, or if it can be done, and point me in the right direction, any help will be greatly appreciated.
i obviously would not want to brick my device, but am willing to try to unlock if possible.
thanks.
That's very interesting. Wondering if that's the model the debug bootloader was pulled from to root the US carrier v20's. I'm not an expert in this but have you tried to flash the us99610f (Dec 1 2016 sec patch) kdz using LG UP. That should put you on official LG firmware that is still rootable. The kdz will flash every piece of firmware getting you off of that demo firmware. From there you could try to unlock the bootloader again using LGs website, or worst case use dirtysanta to root the phone if you wish. There's a hacked lgup thread somewhere in the guide section that should do the trick.
thanks toastyp, i will download 10f, and look for the hacked lgup.
rluque35 said:
thanks toastyp, i will download 10f, and look for the hacked lgup.
Click to expand...
Click to collapse
Here's the link just in case
https://www.google.com/amp/s/forum....e-patch-lgup-to-unlock-features-t3652222/amp/
thanks guys, i used LGUP from Prowler_gr thread https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222/page8 Thanks by the way.
downloaded 10f, and flashed with LGUP, no i have a fully working US996 (not demo version) at US99610f, i will keep reading so i can do the bootloader unlock and root.
thanks again for your help
rluque35 said:
thanks guys, i used LGUP from Prowler_gr thread https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222/page8 Thanks by the way.
downloaded 10f, and flashed with LGUP, no i have a fully working US996 (not demo version) at US99610f, i will keep reading so i can do the bootloader unlock and root.
thanks again for your help
Click to expand...
Click to collapse
Glad everything worked for you. I would try to root using LGs official unlock.bin method as it will be the easiest way to root the phone. Plus you get to keep your stock bootloader which is potentially helpful in the event LG implements ARB on the us996. If it still doesn't work you can try the dirty elf thread. I believe it's the dirtysanta method for the us996. This process will flash a debug bootloader with full fastboot commands that is unlocked. From there you can flash twrp normally.
https://www.google.com/amp/s/forum....0-h915us996-dirtyelf-bootloader-t3568013/amp/
thanks toastyp, LG official unlock still not working, as i guess the IMEI is still recognized as from a demo unit, i will try dirty elf method, might take a while since my home pc just died (mobo or cpu) anyway , as soon as i can i will try it.
thanks.
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