Unlocked at&t lg v20 wont update - LG V20 Questions & Answers

I have an unlocked at&t lg v20 but it wont update. It has never been updated. When i try to update it says there are no available updates. Any solutions?

dregonk said:
I have an unlocked at&t lg v20 but it wont update. It has never been updated. When i try to update it says there are no available updates. Any solutions?
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I, too am in the same situation. I even bought an AT&T GoPhone SIM to try, put it in, thinking it would work (Just $5) but it didn't so, I am thinking that I need to actually activate the SIM now, but not sure if I want to add a min of $30 just to "See" if it will update.

That is exactly what you will have to do (or root your phone and then return to stock).
AT&T only does OTA updates, and only if you are an active AT&T customer. Sucks right? Don't bother complaining to the FTC, they will tell you to eff off.
-- Brian

I'm also using an AT&T H910. Can't receive any updates. I entered the developer options and saw that the phone was "OEM unlocked". Can I just flash a custom recovery and SuperSU to get root?

Related

LS997 wave lost

Has any find a way to fix the issue with the latest ota update on the sprint ls997. its saying invalid sim and cant get into the bootoader so no root or even into the hidden menu option
What do you mean by "wave lost"? In order for people to help you, you need to detail what exactly you are trying to do, what you previously did before issues arose, and what is currently wrong with the phone. The ls997 doesn't have an unlockable bootloader or fastboot commands, so there isn't anything you can do from the bootloader.
After updating my lg ls997 to ZVC firmware and resetting the phone its saying invalid sim so no network service cant load into boot-loader either or go into hidden menu. I cant make or received any calls or even flash a different rom
Ah. There's a thread somewhere by runningnak3d that details the issues people are having with unlocking the carrier variants. If you are using the ls997 (Sprint device) on another network, many people have been reporting issues with the unlocked state resetting upon updating or wiping the data partition. Many of the people have root though, so they can either downgrade their firmware, or try different modems. If you're not rooted currently, there is no way to do this at the moment for Sprint devices with zv8 or higher due to antirollback being enabled. Here's the thread https://forum.xda-developers.com/v20/how-to/hardware-modem-modem-firmware-ril-t3744860
@Zhanozuki Are you using your phone on a network besides Sprint? If so, was it working before you took the OTA update?
Also, were you rooted, or were you asking if there is a way to root?
-- Brian
invalid sim
runningnak3d said:
@Zhanozuki Are you using your phone on a network besides Sprint? If so, was it working before you took the OTA update?
Also, were you rooted, or were you asking if there is a way to root?
-- Brian
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Click to collapse
Yes i was using it on different network in my country which is "Digicel". i didn't have root because i just received the phone after purchasing it off eBay. I didn't get time to root it i just put in my sim using it for 3 hours saw the update went ahead and update then reset when i lost network:crying: now my phone is useless
Hmm. @runningnak3d this is almost the exact same situation that happened to those us996 users from England. They took the 10n ota and suddenly their phones could no longer connect to their network. One of them sent his phone to LG and it was found that there were non-LG parts in the phone that would cost 378 to replace. Some of these refurb phones being sold by not reputable vendors are replaced with knock-off Chinese mobos and parts that break very easily. May not be the case here but just a thought.
Here is a link to that thread https://forum.xda-developers.com/v20/help/lg-v20-us996-radio-off-security-update-t3718507
It think it much more likely that the Sprint modem had bands enabled that Sprint doesn't use, and they sent out a modem that disabled those bands.
OMG OH NOES someone can use our phone on another network -- hurry up and disable that!
Super Di**s
-- Brian

Oreo update on unlocked ATT S8 with T-Mobile sim

I have an unlocked S8 and I have not got the Oreo update Every time I go to check, it says your software is up to date. Is it because I am using a T-Mobile SIM? If yes, do I need to use ATT sim to get the update?
fordfulkerson said:
I have an unlocked S8 and I have not got the Oreo update Every time I go to check, it says your software is up to date. Is it because I am using a T-Mobile SIM? If yes, do I need to use ATT sim to get the update?
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Click to collapse
Yes you need an AT&T sim. Otherwise you will not receive ota updates.
Try it now
When I unlocked my AT&T S8, and stuck in a MetroPCS Sim, MetroPCS updated the phone to Oreo. This also results in the boot logo changing to MetroPCS which I think is unfortunate. And it installed a couple of Metro PCS apps including the voicemail app. This was all interesting since this means a carrier will update an OS on a phone that was originally sold for a different carrier. Seems that could run into problems but maybe not.
Did you figure it out?
fordfulkerson said:
I have an unlocked S8 and I have not got the Oreo update Every time I go to check, it says your software is up to date. Is it because I am using a T-Mobile SIM? If yes, do I need to use ATT sim to get the update?
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Click to collapse
I have an AT&T unlocked S8 Active with a t-mobile sim. I tried using an old AT&T sim with no plan, but it did not work. Do I need a sim with a plan to do the stupid update?
Take it to a Samsung Experience in a Large Best Buy and get them to Update it.
http://www.samsung.com/us/samsung-experience-shop/
Is there any way to manually update it to the latest version? Caz I am stuck on Android 7.0 as well, it won't update.
martyh1 said:
When I unlocked my AT&T S8, and stuck in a MetroPCS Sim, MetroPCS updated the phone to Oreo. This also results in the boot logo changing to MetroPCS which I think is unfortunate. And it installed a couple of Metro PCS apps including the voicemail app. This was all interesting since this means a carrier will update an OS on a phone that was originally sold for a different carrier. Seems that could run into problems but maybe not.
Click to expand...
Click to collapse
How long after putting in your metropcs sim did the phone update? I just unlocked an att s8 active today registered on my metropcs account but as of this moment it says it is up to date when it is clearly not.
Thank you

Unbranding h910 AT&T

Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.
AWT86 said:
Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.
Click to expand...
Click to collapse
First off, if its not sim unlocked phone, it will forever stay sim locked unless you get the network unlock for it. EVEN if you flash any of the other brand roms. Also, AT&T doesn't have the full stock kdz to revert to, there are work arounds to return to stock. This phone has trouble with the screen ghosting/retention, as well as bonkers HDR camera performance, also not to forget, GPS inaccuracy upto 50 meters. I'd suggest look away from LG unless you're going for LG v30 which doesn't carry any of these issues.
If you have already bought, paid and "expecting" shipment anytime soon, you should make sure that its network unlocked H910. (make backup of your partitions before flashing any other brand rom because you will need modem, modemst1, modemst2 and misc partitions in-case you lose the signals). Then you can easily flash it with H915 rom which is the best among debloated stock roms. Flash H910 v10m firmware over it, then flash the modem/modemst1/modemst2/misc files from fastboot to get network signal. From there on forward, you may keep H915 rom with H910 v10m base, or you can even move on to lineage roms. I'd suggest stay rooted with manual color calibration for no-ghosting measures.
AWT86 said:
Hi.
I am expecting delivery of an LG V20 h910 from eBay in the coming days, but don't have an AT&T SIM (EU user).
Is there a way to flash an unlocked, stock version of the software (eg US996) so I can update the phone to the latest version?
I heard non-AT&T SIM users don't get updates thru AT&T, so wondering how I can get the latest software for it.
I would prefer not to root the phone, but would do if necessary (and if I can then get a fully functional, up-to-date software version).
Thanks in advance.
Click to expand...
Click to collapse
You can't flash another variant rom until you unlock the bootloader and root. As far as functionality with the 996 will depend on the bands your carrier supports
Sent from my LG-H910 using XDA Labs
I received my used AT&T V20 yesterday also bought from eBay. I'm on O2 and it works fine. Just be sure your phone is network unlocked. Only thing is the bloatware.
So much misinformation in this thread, but I will just address the original question....
Yes, you can flash the US996 KDZ without rooting .. just flash like you would any other KDZ. You lose some AT&T specific features while running US996, but if you are overseas, I don't think that will bother you.
As far as I know, that will SIM unlock the phone if it is locked. If it doesn't, then the engineering bootloader that you use to root will SIM unlock the phone as well as bootloader unlock it.
So, first try the US996 KDZ, if that doesn't SIM unlock, you will have to root.
-- Brian
CaseyS said:
I received my used AT&T V20 yesterday also bought from eBay. I'm on O2 and it works fine. Just be sure your phone is network unlocked. Only thing is the bloatware.
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Click to collapse
Did you get any system updates?
runningnak3d said:
So much misinformation in this thread, but I will just address the original question....
Yes, you can flash the US996 KDZ without rooting .. just flash like you would any other KDZ. You lose some AT&T specific features while running US996, but if you are overseas, I don't think that will bother you.
As far as I know, that will SIM unlock the phone if it is locked. If it doesn't, then the engineering bootloader that you use to root will SIM unlock the phone as well as bootloader unlock it.
So, first try the US996 KDZ, if that doesn't SIM unlock, you will have to root.
-- Brian
Click to expand...
Click to collapse
The phone should come pre-unlocked for all networks. I'm mainly concerned about system updates. US996 sounds good, as I can't use AT&T here (AT&T doesn't exist in my country). Would I be able to update the firmware in any way once US996 KDZ is installed? Thanks in advance.
AWT86 said:
Did you get any system updates?
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Click to collapse
No system updates. Had the latest update with the latest security patch, but I downgraded because I want to root it. Still 7.0, but with a earlier patch level.

Doubts before buying it on the Software and its unlocking

Hello, I want to buy this phone since I have seen it in amazon for 360 dollars, my question is that it is AT & T software but unlocked for any operator, is this really the case?
I am reading reviews in Amazon that say it is not really Unlocked and can not be used with other operators.
I want to use it in Argentina with the Personal operator.
If it's carrier unlocked, you can use with any operator.
xela19115 said:
If it's carrier unlocked, you can use with any operator.
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Click to collapse
Thanks, for what I see I got confused with that of GSM or CDMA.
Check the only cheap and unlocked version that I see is the one with the AT & T software, is it easy to change the ROM to the Stock to receive updates?
Or is it better to leave it like this and update over time?
xela19115 said:
If it's carrier unlocked, you can use with any operator.
Click to expand...
Click to collapse
But you can't update firmware with any operator, even when carrier unlocked.
Think again... https://lg-firmwares.com/lg-lmv350ulm-firmwares/#tab=firmwares
MasterThiefGarrett said:
Think again... https://lg-firmwares.com/lg-lmv350ulm-firmwares/#tab=firmwares
Click to expand...
Click to collapse
Think again what? You still can't update with AT&T firmware. You're talking about flashing to non-AT&T firmware. But that's a workaround.
Carrier unlocking and using on non-ATT network lets you use the phone, but you won't get updates.
UNLESS YOU FLASH TO COMPLETELY DIFFERENT FIRMWARE, which is another topic.
I'm using the att version of the LGv35 using straight talk on att towers and I receive updates periodically on time no issues. So I would think any US carrier that uses att towers should receive updates.
Optimusman said:
I'm using the att version of the LGv35 using straight talk on att towers and I receive updates periodically on time no issues. So I would think any US carrier that uses att towers should receive updates.
Click to expand...
Click to collapse
But the op is asking about non-ATT. That's why he wants "carrier unlocked". Specifically he lives in Argentina, so he will NEVER use AT&T... But there's even people in U.S. who don't use AT&T nor AT&T MVNOs.
Carrier unlocked lets you use it in any carrier which has compatible bands, but you won't get updates. For that, you have to manually flash to other variant firmware KDZ
Just for the record, flashing to another firmware variant(at least on this phone) won't get you updates either. You'll need to manually download and flash each new update. I flashed my Amazon variant to the Google Fi kdz and never received another update, no matter how many came out. Had to start doing it manually, got annoyed, and flashed back to the Amazon kdz in anticipation of the Pie update coming out (eventually... Please LG, for the love of...)
As a side note, going from the Amazon software and using lgup to flash the gFi software as an upgrade worked fine, and I kept all of my data. Flashing back to the Amazon software as an upgrade soft-bricked my device and I had to do a full wipe and flash, and so lost all of my data. Reinstalling and reconfiguring all of your stuff is a pain in the ass when you don't have access to twrp for a proper backup.

NEW V35 [7/2020] Stuck on OREO?

Just bought this phone about a week ago, it is an Unlocked AT&T Model. It tells me basically that it does not need a OS Update - that it has the Latest 8.0. I am giving up on LG Support already!
Using their APK to update via USB told me that it cannot even check the Version of the OS, so definitely NO Update for this SUCKER!
Can anyone here PLEASE help me find a way to UPDATE this nice Smart Phone?
THANKS!
cyberized said:
Just bought this phone about a week ago, it is an Unlocked AT&T Model. It tells me basically that it does not need a OS Update - that it has the Latest 8.0. I am giving up on LG Support already!
Using their APK to update via USB told me that it cannot even check the Version of the OS, so definitely NO Update for this SUCKER!
Can anyone here PLEASE help me find a way to UPDATE this nice Smart Phone?
THANKS!
Click to expand...
Click to collapse
https://forum.xda-developers.com/lg-v35/help/change-att-rom-t4102067
ChazzMatt said:
https://forum.xda-developers.com/lg-v35/help/change-att-rom-t4102067
Click to expand...
Click to collapse
THANKS! Going to be to MUCH 4 dis ol' brain, I'm afraid, may have to hope/pray that LG just might dnld 9.0 for me or may ride 8.0 to me grave!
ChazzMatt said:
https://forum.xda-developers.com/lg-v35/help/change-att-rom-t4102067
Click to expand...
Click to collapse
This is what LG's response is to me about getting my AT&T Unlocked V35 Updated fm A. 8.0:
Hi Michael, we appreciate your time in getting back to us. I will be happy to assist you today.
In response to your inquiry, for carrier unlocked phones, the only way to get it updated is, you need to have a service again with the original service provider for them to send or push the Software update to your phone. While LG has no control with the software updates for carrier unlock phones, compared to manufacture unlock phones it automatically receives the software updates that was released OTA (Over the Air).
I hope I have provided all the information and wish it has been helpful in addressing your query. It has been a pleasure to help you out to the best of my knowledge and my skills.
Should you have any other questions, please feel free and don't hesitate to contact us again via Email, Live Chat, or Phone by calling 1-800-793-8896. As this email is used for outgoing mail only, you may send file attachments, replies, any information and further inquiries over to the email section of support https://www.lg.com/us/support/email-appointment and we will do our best to assist you without you having to repeat the details of your previous message.
Thank you for choosing LG Electronics!
Sincerely,
Johannes
I have to leave T-Mobile [cheaper/better] and go to AT&T - RATS!
ChazzMatt said:
https://forum.xda-developers.com/lg-v35/help/change-att-rom-t4102067
Click to expand...
Click to collapse
I heard from LG Support and they said that since it is an AT&T Unlocked Phone and not unlocked by them - I have to sign up with AT&T and noot my T-Mobile too get Updated....RATS....I just left
AT&T for better and cheaper service from T-Mobile and now I have to go back....guess I will and if/when they upgrade this NICE phone I will leave dem again!:laugh:
Or as I suggested, you simply cross flash to North American Open Market (NAO) firmware via Dev Patched LGUP.
You can also try temporarily putting in an AT&T SIM card (not even activated) and that can trigger AT&T update, if left for a few hours.
But people in other countries just cross flash to NAO as they don't need AT&T firmware whatsoever.
cyberized said:
This is what LG's response is to me about getting my AT&T Unlocked V35 Updated fm A. 8.0:
Hi Michael, we appreciate your time in getting back to us. I will be happy to assist you today.
In response to your inquiry, for carrier unlocked phones, the only way to get it updated is, you need to have a service again with the original service provider for them to send or push the Software update to your phone. While LG has no control with the software updates for carrier unlock phones, compared to manufacture unlock phones it automatically receives the software updates that was released OTA (Over the Air).
I hope I have provided all the information and wish it has been helpful in addressing your query. It has been a pleasure to help you out to the best of my knowledge and my skills.
Should you have any other questions, please feel free and don't hesitate to contact us again via Email, Live Chat, or Phone by calling 1-800-793-8896. As this email is used for outgoing mail only, you may send file attachments, replies, any information and further inquiries over to the email section of support https://www.lg.com/us/support/email-appointment and we will do our best to assist you without you having to repeat the details of your previous message.
Thank you for choosing LG Electronics!
Sincerely,
Johannes
I have to leave T-Mobile [cheaper/better] and go to AT&T - RATS!
Click to expand...
Click to collapse
ChazzMatt said:
Or as I suggested, you simply cross flash to North American Open Market (NAO) firmware via Dev Patched LGUP.
You can also try temporarily putting in an AT&T SIM card (not even activated) and that can trigger AT&T update, if left for a few hours.
But people in other countries just cross flash to NAO as they don't need AT&T firmware whatsoever.
Click to expand...
Click to collapse
Matt: TKS, I didn't think I'd ever need that AT&T SIM card, thru it away.........PLEASE tell this ol' man the easiest and safest way to "do da DEED" and FLASH it as you suggest above and thus be able to
stay w T-Mobile and eventually also get a better V. of 10.0.....Is it FOOL Proof? Hope so.......TKS:fingers-crossed:
cyberized said:
Matt: TKS, I didn't think I'd ever need that AT&T SIM card, thru it away.........PLEASE tell this ol' man the easiest and safest way to "do da DEED" and FLASH it as you suggest above and thus be able to
stay w T-Mobile and eventually also get a better V. of 10.0.....Is it FOOL Proof? Hope so.......TKS:fingers-crossed:
Click to expand...
Click to collapse
Yes, people report AT&T SIM card will do the trick. Either prepaid or postpaid, they are both the same. Supposedly they don't have to be activated -- as long as you have AT&T firmware on your phone.
Some say a Red Pocket (AT&T MVNO) SIM card will, also. While Cricket (owned by AT&T) SIM card will not.
ChazzMatt said:
Yes, people report AT&T SIM card will do the trick. Either prepaid or postpaid, they are both the same. Supposedly they don't have to be activated -- as long as you have AT&T firmware on your phone.
Some say a Red Pocket (AT&T MVNO) SIM card will, also. While Cricket (owned by AT&T) SIM card will not.
Click to expand...
Click to collapse
Called Best Buy to see IF I could pay someone there to Flash my V35, like you recommend, but they are not allowed to do things like that. Turning to Craig's List now.
Hey buddy, it's easy to do yourself. Just follow this comment and the linked guide. Process is the same. Super simple and straightforward. Let me know if you have any questions.
https://www.reddit.com/r/LgV35/comments/f2yag4/just_got_one_should_i_modify_it/fhg34cy
Latest firmware for the V35 now (AT&T does have an early version of the Android 10 update, but kdz not released. We have to wait for a ULM kdz to be released to flash the 10 and update. Until then we're on Android 9 still) is the 04/2020 update. Sort by date on lg-firmwares.com, for device choose LMV350ULM, you want the ULM as its the unlocked carrier free version of the V35, and crossflashing the AT&T version is completely safe (I'm using an AT&T V35 in Canada on Koodo with the ULM software). In the software list choose GFI or USA (I'd recommend the USA version, unless you're on google fi).
cyberized said:
Called Best Buy to see IF I could pay someone there to Flash my V35, like you recommend, but they are not allowed to do things like that. Turning to Craig's List now.
Click to expand...
Click to collapse
Buy one of these AT&T SIM cards. Less than $3 with free shipping.
Leave it in overnight, see if the OTA update shows up.
Keep your T-Mobile. This is just to trigger the update.
https://www.ebay.com/itm/174018618281
ChazzMatt said:
Buy one of these AT&T SIM cards. Less than $3 with free shipping.
Leave it in overnight, see if the OTA update shows up.
Keep your T-Mobile. This is just to trigger the update.
https://www.ebay.com/itm/174018618281
Click to expand...
Click to collapse
THANKS MUCHO Matt - I will definitely do that right away! Appreciate da TIP!
ugslick said:
Hey buddy, it's easy to do yourself. Just follow this comment and the linked guide. Process is the same. Super simple and straightforward. Let me know if you have any questions.
https://www.reddit.com/r/LgV35/comments/f2yag4/just_got_one_should_i_modify_it/fhg34cy
Latest firmware for the V35 now (AT&T does have an early version of the Android 10 update, but kdz not released. We have to wait for a ULM kdz to be released to flash the 10 and update. Until then we're on Android 9 still) is the 04/2020 update. Sort by date on lg-firmwares.com, for device choose LMV350ULM, you want the ULM as its the unlocked carrier free version of the V35, and crossflashing the AT&T version is completely safe (I'm using an AT&T V35 in Canada on Koodo with the ULM software). In the software list choose GFI or USA (I'd recommend the USA version, unless you're on google fi).
Click to expand...
Click to collapse
THANKS for Great Suggestion, I looked over the LINKS etc. and bookmarked but at my age etc., I am alot more TECH SAVY than probably most 81 yr olds BUT I just don't feel confident enough trying to follow all of those instructions, wish I did....know it appears SIMPLE, but I just paid for this NICE Phone and would HATE to BRICK it!
BTW...just abit ago I got notice you sent me a PM but when I tried to open it [SORRY] I guess my Blocker blocked it and sent it into
CyberSpace or something....can't seem to find it now. I just followed ChazzMatt's TIP - and ordered a $2.99 ATT Sim Card to put into my LG V35 to hopefully trigger aN UPDATE. Laters, Michael
Just follow this video for upgrading your V35 to latest firmware
so, (directed toward Chazzmatt) I'm just needing a recommendation on which one to do (or wait for). Ive got the ATT unlocked model on MetrobyTMobile. (LM-V350AWM) I first updated it via modified LGUP to V350ULM20d (V350ULM20d_00_NAO_US_OP_0612), then to V350ULM20f (V350ULM20f_00_NAO_US_OP_0218). ((it still shows as V350AWM in the sys info, but all bloatware is gone))
Now, a while back I went into an ATT store and got them to sell me an un-activated sim card, and tried to update that way and failed (not knowing you had to wait a couple hours or overnight). My question is, would the simcard ota update work for me, and if so, would it be the full blown bloated att version of 10.
Or, should I just keep patiently waiting for the NAO KDZ (V350ULM30?) like you've been screaming for us to do since the very beginning! lol
(apologies for the gratuitous use of parentheses)
*Update - They're now saying we will be getting LG's new Velvet UI, should I wait even longer for that to be released???
burt_mcgirt said:
so, (directed toward Chazzmatt) I'm just needing a recommendation on which one to do (or wait for). Ive got the ATT unlocked model on MetrobyTMobile. (LM-V350AWM) I first updated it via modified LGUP to V350ULM20d (V350ULM20d_00_NAO_US_OP_0612), then to V350ULM20f (V350ULM20f_00_NAO_US_OP_0218). ((it still shows as V350AWM in the sys info, but all bloatware is gone))
Now, a while back I went into an ATT store and got them to sell me an un-activated sim card, and tried to update that way and failed (not knowing you had to wait a couple hours or overnight). My question is, would the simcard ota update work for me, and if so, would it be the full blown bloated att version of 10.
Or, should I just keep patiently waiting for the NAO KDZ (V350ULM30?) like you've been screaming for us to do since the very beginning! lol
(apologies for the gratuitous use of parentheses)
*Update - They're now saying we will be getting LG's new Velvet UI, should I wait even longer for that to be released???
Click to expand...
Click to collapse
The AT&T SIM card trick only works if you still have AT&T firmware installed.
If you cross flashed to another V35 firmware you need to wait for that KDZ to be released. It's coming. LG is just slow. Same deal last year with Pie.
ChazzMatt said:
The AT&T SIM card trick only works if you still have AT&T firmware installed.
If you cross flashed to another V35 firmware you need to wait for that KDZ to be released. It's coming. LG is just slow. Same deal last year with Pie.
Click to expand...
Click to collapse
ah, thanks for clearing that up! I'm guessing we might have to wait even longer now that they've announced we'll be getting Velvet UI and need time to add that to the KDZ, or is the UI update something that will come later on?

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