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Hi, recently unlock my new S4 but its not functionall with all networks, somebody told me that with a downgrade will work, but my S4 has 1337UCUFNC1 version of baseband, im not an expert with this things, i really come here for help, if anyone here help me with how to downgrade the phone i really appreciate.
PD. The phone is unlock and root.
rapidrayo said:
Hi, recently unlock my new S4 but its not functionall with all networks, somebody told me that with a downgrade will work, but my S4 has 1337UCUFNC1 version of baseband, im not an expert with this things, i really come here for help, if anyone here help me with how to downgrade the phone i really appreciate.
PD. The phone is unlock and root.
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Not sure what you are asking for. If your phone is unlocked, it should work on any network as long as the bands are compatible. (Ex. AT&T S4 wont work on Verizon or Sprint)
You can downgrade to NB1, but that wont help in terms of using on a different network. If you need to enable AWS, you may be out of luck. There is a method written in the general section, but people has posted that it does not work with 4.4. which is your version of android.
Hi, i have a d801 Unlocked working on Venezuela whit stock lollipop, but i want to try custom roms. My dude is, if i change the bootloader will i need unlock it again? Please, anybody tell me!
Is it possible to safely flash a us996 unlocked rom onto my ls997zvc? And will it allow me to continue to use my gsm att based sim card? I bought this phone used the other day. He said it was Verizon unlocked but turns out its this sprint model. No carrier branding anywhere. No splash screen on boot. I almost thought it was a non carrier based unlocked phone until i looked up the model number.
Bump
Buuuuuump. I bought my phone through sprint, paid it off, they keep telling me It's unlocked, but i have to factory reset every time i turn my phone off to get it to work with the other carrier sim. I've contacted them over and over and all they say is "we sent the unlock signal, that's all we can do on our end" but their signal is only working on factory reset. I really want to root this and install the unlocked firmware so i can have my phone without having to reinstall everything constantly. I mistakenly upgraded to ZVC update before having it unlocked and now I'm stuck. Any updates on an unlock eta?
Unfortunately I believe that ZVC is ARB 2 and it has the latest lafd with copy2 pulled, so that means that even once the lafsploit is finished, the LS997 will not be able to use it because you can't roll back to a firmware version that has copy2. If I am wrong, and ZVC is still ARB 1, then you can roll back to a version that has copy2.
If I can find a dump of the ZVC firmware, I can tell you for certain what ARB version it is. If no one has made a dump, you can do it yourself by grabbing the patched LG UP, and used the dump option. If you grab one of the full stock flashable zips from another model, you can see what partitions need to be included. I could just tell you, but I think people need to learn
-- Brian
I accidentally updated mine to zvd the other day. A brand new release. Would be very nice if you could tell me exactly how to flash the us996 firware safely. Ther3 has to be a way to unlock this damned phone. I paid 200 for it and now i am ****ed.
Please help me out. I could post a dump of the zvd firmware if i can figure it out
runningnak3d said:
Unfortunately I believe that ZVC is ARB 2 and it has the latest lafd with copy2 pulled, so that means that even once the lafsploit is finished, the LS997 will not be able to use it because you can't roll back to a firmware version that has copy2. If I am wrong, and ZVC is still ARB 1, then you can roll back to a version that has copy2.
If I can find a dump of the ZVC firmware, I can tell you for certain what ARB version it is. If no one has made a dump, you can do it yourself by grabbing the patched LG UP, and used the dump option. If you grab one of the full stock flashable zips from another model, you can see what partitions need to be included. I could just tell you, but I think people need to learn
-- Brian
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Click to collapse
Yo im back zvc is ARB01 btw. Im looking for a way to root it PM me if ya wanna talk.
Please let me know if find a way for zvd. Im stuck with a worthless phone because of some lying asshole on cl.
@me2151 Welcome back dude
If all goes as planned, we will soon be able to root any model on any ARB version. My info above about ARB 2 being an issue was incorrect (must have been on crack when I typed that post).
LG phones with unlockable bootloaders (or that have an engineering aboot / abl) will be rootable indefinitely -- a hole that can't be closed without changing their security significantly.
-- Brian
runningnak3d said:
@me2151 Welcome back dude
If all goes as planned, we will soon be able to root any model on any ARB version. My info above about ARB 2 being an issue was incorrect (must have been on crack when I typed that post).
LG phones with unlockable bootloaders (or that have an engineering aboot / abl) will be rootable indefinitely -- a hole that can't be closed without changing their security significantly.
-- Brian
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Click to collapse
Please keep me informed on your progress. I really just want to do this to gsm unlock my phone for my at&t sim card. Guy sold me it saying it was unlocked already.
Do i have to root to flash us996 rom onto my phone? And does that unlock it or the root method from dirty santa exploit what uicc unlocks the phone. I read tidbits of information on this forum that say the phone is uicc unlocked after rooting and/or flashing us996 firmware, but all are supposedly only possible on zv7 or older firmware of Sprint phones.
runningnak3d said:
Unfortunately I believe that ZVC is ARB 2 and it has the latest lafd with copy2 pulled, so that means that even once the lafsploit is finished, the LS997 will not be able to use it because you can't roll back to a firmware version that has copy2. If I am wrong, and ZVC is still ARB 1, then you can roll back to a version that has copy2.
If I can find a dump of the ZVC firmware, I can tell you for certain what ARB version it is. If no one has made a dump, you can do it yourself by grabbing the patched LG UP, and used the dump option. If you grab one of the full stock flashable zips from another model, you can see what partitions need to be included. I could just tell you, but I think people need to learn
-- Brian
Click to expand...
Click to collapse
me2151 said:
Yo im back zvc is ARB01 btw. Im looking for a way to root it PM me if ya wanna talk.
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Click to collapse
Hello, I'm here with Ls997 ZVA, ARB=1 and are waiting for any update from you guys.
Thank you ^^
Does anybody know If i can do the similar thing but towards using TMobile network?? Can I flash Tmo H918 stock rom to LS997 Sprint variant?? I just want to use my Tmo Sim, or maybe if my LS997-SVC still a problem?
Andy Chi said:
Does anybody know If i can do the similar thing but towards using TMobile network?? Can I flash Tmo H918 stock rom to LS997 Sprint variant?? I just want to use my Tmo Sim, or maybe if my LS997-SVC still a problem?
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Click to collapse
2 years late but better than never I suppose?
No idea what my LS997 is using. Performed the dirty santa a long time ago to root, and just this morning I flashed /e/OS over Lineage to test the waters with a de-googled experience. I'm now on T-mobile magenta max plan following the merge and daily driver is a Pixel 4A 5G. Popped the SIM into the V20 running /e/OS and data works but voice and text do not. Not sure if this is a hardware, firmware, or software incompatibility.
Honestly the V20 really pissed me off with how locked down it was. I am NEVER buying a phone that is not easy to root or repair. that is 100% deal breaking for me. Pixel phones have unlockable bootloaders so not too much bull**** necessary to break from the clutches of these damn phone companies and carriers.
So I followed directions here: https://forum.xda-developers.com/sprint-g6/help/unlock-lg-g6-ls993zva-sprint-version-t3779966
Went to: https://lg-firmwares.com/lg-us997-firmwares/#tab=firmwares and downloaded: US99721d_02_1211.kdz
Follow all instructions at first link.
I can confirmed it worked for me. Havent had any problems. THIS will NOT allow bootloader unlock (already tried it).
Software Version: US99721d (shows in phone settings).
Atleast ALL V* bloatware is gone.
I am not liable if your phone stops working however, it worked 100% for me and can now use Wifi Calling features.
US997 is unlocked firmware (not bootloader) meaning you can use with almost all carriers.
XDA admin, if this is wrong forum to post in please move for me thanks!
Worked for me. Also wanna try to flash European software, do the TWRP, root and other stuff. Ill give you the feedback if it runs properly.
EDIT: I can confirm that phone works on h870 20H software, but it doesnt recognize sim card. Trying to flash modem from us997. Also i can confirm that bootloader unlock menu is avialable
EDIT: I managed to combine h973 20h canadian rom with h970 20h europe open rom to have all the languages (I'm from Poland). Now I'm gonna try to root it somehow.
As for know I know that US997 and H973 roms works on our VS988 without any problem. H870 have problems with modem, but it has a workaround (do a hybrid rom)
Cool Thanks. I know there are still lots of people that have this phone and want to figure out a way to unlock OR root it. However I'm glad its bloatware free.
So you have EU version phone? Or firmware?
Im on original VS988 > US997. SIM works, wifi calling. OEM unlock toggle works. You did the wipes and stuff in his steps? Im sure you did. Hope you get it working 100% !
So since the bootloader will not unlock all this does is remove bloarware? Still can't root?
Correct. No root. Removes all bloat and gives additional options like wifi calling. Verizon had it but if you switched providers wifi calling wouldnt work. Plus LG theme store is on it for some sweet themes. Some are free but the good ones cost a few bucks.
meh.
think Im just going to break down and buy a US997.
Phone itself is perfectly adequate. Only problem I have is I cant use the navigation app I want instead of stupid Google Maps in Android Auto.
my work phone is an iPhone and I'm starting to think maybe its time to switch. I switched ages ago to Android because iPhones were so locked down. Now Android phones are even more locked down....and the data collection is getting ridiculous.
ooh, this is interesting. which region did you select? there's two (2) available for download with the same kdz name you provided (UCK and UCL, both appear to be for us cellular). not sure what the difference is between the two, if any.
is your phone able to get ota updates after flashing? if so, does it come from us cellular, or is it pushed from verizon still?
I chose UCL. I dont know about auto updates, selecting check for update says "up to date".
justqt said:
I chose UCL. I dont know about auto updates, selecting check for update says "up to date".
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Click to collapse
was thinking UCL too since the UCK seems to be specific to OK area based on the name. thanks for the confirmation; will try this out tonight.
You're Welcome.
The firmware overall does seem a little quicker. Battery seems to improved. My wife used my phone yesterday for about 3-4 hours. I charged it before she left, she didnt actually use it so I'm guessing it was in standy by. Anyways when she got back it was still at 100% charge. Ive been typing on it for about 15 minutes and its at 99% so seems to be alot better.
I'm on a us997 and I want volte do I just flash the Verizon radio? Also is there a way to do it from recovery? I don't want to do it by PC unless I need to
SantoSubito said:
Worked for me. Also wanna try to flash European software, do the TWRP, root and other stuff. Ill give you the feedback if it runs properly.
EDIT: I can confirm that phone works on h870 20H software, but it doesnt recognize sim card. Trying to flash modem from us997. Also i can confirm that bootloader unlock menu is avialable
EDIT: I managed to combine h973 20h canadian rom with h970 20h europe open rom to have all the languages (I'm from Poland). Now I'm gonna try to root it somehow.
As for know I know that US997 and H973 roms works on our VS988 without any problem. H870 have problems with modem, but it has a workaround (do a hybrid rom)
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Click to collapse
Hello, you managed to unlock the bootloader?
Nope, I actually dont have time to work with my G6 because it's my daily driver. I managed to install h873 software and everything is working. You can also install h870 software but i think it don't have same antena drivers because WIFI and BT isnt working. I'm gonna to try unlock my G6 on h870 software, but I don't know when it gonna be... I've also tried to root it but every method I tried failed :c Also I think that you can unlock it on h870 without any trouble but SIM, BT etc wont work. The problem is taht when you unlock it on h870 and go back to vs or h873 software to get SIM working, you get locked device instantly xdd
Install US997 over VS988
works as described. used exact OP instructions and 8.0 rom. had to hard reset afterwards but all went well. phone was vs 988 with page plus as carrier. hot spot works after rom replacement per OP instructions. had no need for factory reset. all in all A+.
Hi guys
So I was thinking. Will it be possible to flash a kdz that already has an unlocked bootloader or extract the bootloader and flash it. Any ideas?
How about my phone is easier to use? 997, with this method, but now what I want to do h870 to test the update of android 9 you think work and I saw that the bands should be able to work in theory. The version has no interest in the subject of the root, but if the phone is updated. Sorry for my English
SantoSubito said:
Worked for me. Also wanna try to flash European software, do the TWRP, root and other stuff. Ill give you the feedback if it runs properly.
EDIT: I can confirm that phone works on h870 20H software, but it doesnt recognize sim card. Trying to flash modem from us997. Also i can confirm that bootloader unlock menu is avialable
EDIT: I managed to combine h973 20h canadian rom with h970 20h europe open rom to have all the languages (I'm from Poland). Now I'm gonna try to root it somehow.
As for know I know that US997 and H973 roms works on our VS988 without any problem. H870 have problems with modem, but it has a workaround (do a hybrid rom)
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Click to collapse
how do i flash the modem from us997 unto the h870? Please help
H870s over vs988
is it a good idea ? My phone has that notification of humidity detected so I can't charge it and I can't deactivated also it's so laggy ? Is it ok ? Cuz I've never done this on a LG
anyone try using US998 or US998z?
US997 does not have Pie. I would say Yet but as old as this phone is getting i doubt there is any work being done on getting it for the us997.
SantoSubito said:
Nope, I actually dont have time to work with my G6 because it's my daily driver. I managed to install h873 software and everything is working. You can also install h870 software but i think it don't have same antena drivers because WIFI and BT isnt working. I'm gonna to try unlock my G6 on h870 software, but I don't know when it gonna be... I've also tried to root it but every method I tried failed :c Also I think that you can unlock it on h870 without any trouble but SIM, BT etc wont work. The problem is taht when you unlock it on h870 and go back to vs or h873 software to get SIM working, you get locked device instantly xdd
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You can root your device now very easily with su98 zip. I have rooted mine and am now looking to unlock the bootloader, no lick so far.
Hello all,
I'm really new to the phone modification scene. I tinker around with computers mostly. I have an unlocked sprint version of the LG v20, the only problem is I am not receiving data on my new carrier (even with the correct apn added). I'm pretty sure this is a firmware issue. I was wondering if there was a way to flash the us996 or verizon version of the phone to get data to work. I know the sprint version is super locked down. I just didn't know if using a modded version of LGUP and the us996 kdz would brick the phone or not, or if there was a way to flash different firmware on the version I am on.
Thanks and cheers,,
horneepapi said:
Hello all,
I'm really new to the phone modification scene. I tinker around with computers mostly. I have an unlocked sprint version of the LG v20, the only problem is I am not receiving data on my new carrier (even with the correct apn added). I'm pretty sure this is a firmware issue. I was wondering if there was a way to flash the us996 or verizon version of the phone to get data to work. I know the sprint version is super locked down. I just didn't know if using a modded version of LGUP and the us996 kdz would brick the phone or not, or if there was a way to flash different firmware on the version I am on.
Thanks and cheers,,
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Click to collapse
everything is possible, if you do it by yourself
horneepapi said:
Hello all,
I'm really new to the phone modification scene. I tinker around with computers mostly. I have an unlocked sprint version of the LG v20, the only problem is I am not receiving data on my new carrier (even with the correct apn added). I'm pretty sure this is a firmware issue. I was wondering if there was a way to flash the us996 or verizon version of the phone to get data to work. I know the sprint version is super locked down. I just didn't know if using a modded version of LGUP and the us996 kdz would brick the phone or not, or if there was a way to flash different firmware on the version I am on.
Thanks and cheers,,
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Click to collapse
Your firmware has anti-rollback enabled (ARB1), and the US996 and VS995 do not (ARB0), so flashing any KDZ (Sprint does not provide KDZ files at all) will surely brick your phone permanently. You're pretty much stuck with the Sprint firmware you currently have, and the only change possible is taking an official over-the-air update to Oreo, but that could re-lock the phone to Sprint only again.
If you're getting into phone modification, then you'll be much better off with any other LG V20 variant as they are all rootable, unlike the Sprint model with ARB1.
C D said:
. You're pretty much stuck with the Sprint firmware you currently have, and the only change possible is taking an official over-the-air update to Oreo, but that could re-lock the phone to Sprint only again.
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That really sucks, yeah I don't really want to try and hassle with sprint customer support, I got the phone second-hand from my step-brother. So, i'm not sure if they would even unlock it again for me. Thanks for the information. I wasn't sure if there was a way to flash certain parts of the software to possible fix the modem issues or not.