Bootloader Unlock, install TWRP, root and you can install developer TWRP-flashable zip (ROM) of AT&T firmware.I'm facing the same situation, so far, no joy.
It's unfortunate, but AT&T and I think Sprint also, make a point of NOT allowing someone to download the firmware. Spent most of yesterday searching for possible solutions... it's not looking good.
Maybe others might comment with more hope?
Cheers
I followed the Frankenstein method to convert from H931 to US998. But now I want to revert. Does anyone know where I could download the firmware for the V30 AT&T model h931? If not, is there a way to revert it back to H931 without downloading the firmware?
Bootloader Unlock, install TWRP, root and you can install developer TWRP-flashable zip (ROM) of AT&T firmware.
Found down in the Dev ROM section.
https://xdaforums.com/lg-v30/development/lg-v30-att-h931-20f-rom-t3872926
---------- Post added at 11:07 PM ---------- Previous post was at 11:05 PM ----------
Are you an AT&T customer?
The ONLY reason you would want AT&T firmware on a V30 is if you're an AT&T customer. Even then, if you want root, you have to temporarily convert to US998 to unlock bootloader, install TWRP and root.
Then ONLY ONLY ONLY if you're an AT&T customer, if you wish you can re-install AT&T firmware via the TWRP flashable zip above.
Otherwise, stay on US998 firmware.
(I'm on AT&T, and I'm still on US998 firmware. But I could flash that AT&T firmware zip above, if I wanted.)
For people who are NOT AT&T customers, you do NOT want the V30 AT&T firmware. US998 is better.
There's another reason one might want AT&T firmware. If they wanted to sell the device
Cheers
No. Carrier unlocked US998 will sell much faster than H931.
Same reason most LS998 are already converted to US998 by eBay dealers.
US998 is the golden child of the North American V30 phones. Even has CDMA and fastboot flash commands.
If it's US998 it's guaranteed carrier unlocked, whereas H931 you have to take the seller's word for it. I'm an AT&T customer and I would never buy an H931... Whereas I've bought several US998 or LS998 and converted them to US998.
On eBay it might be sellable as you describe. But not on swappa, I don't think they even have a listing for that. If you put it in the u.s. 998 category, they want it to be a us998.
I bought the V30 H931 off eBay and cross flashed it to US998. Within hours after flashing, I started to notice that my screen had bad LED uniformity issues (even though the seller listed it as near mint). So now I want to return it and I am worried the flashing voided the seller warranty.
Most, I know for me anyway, always set it back to 'stock' before selling. It's just too much hassle otherwise.
But, (most of) the v30 versions (I'm learning) that's not possible. Which is good and bad. Bad in that many (most I'd say) buyers just don't understand technical stuff well enough to deal with anything but stock.
No, those are carrier unlocked H931, not bootloader unlocked. Because normally AT&T H931 is SIM card locked to AT&T. Those "unlocked" H931 have had codes inputted so they are no longer carrier locked to AT&T.In my situation, I re checked swappa (have sold phones on ebay also, just more luck on swappa), and they do have some h931 listed and indicated 'unlocked' (which I think has to be 998).
This paragraph is a little confusing.So I've relocked and lgup to 20H - and will describe as they do on ebay: 'works with any carrier that requires a sim, but for sprint it has to already be provisioned'.
The only two V30 phones you can't return to stock, with locked bootloader are the two which don't have public KDZ -- LS998 and H931. Every other one to can relock bootloader and flash back to stock with LGUP.
For those two, you have to leave on US998. And it's not an issue to sell them them on eBay as most time that is what people want in the the first place.
Sent via open market LG US998 V30/V30+
---------- Post added at 01:46 PM ---------- Previous post was at 01:31 PM ----------
No, those are carrier unlocked H931. Because normally H931 is SIM card locked to AT&T.
What they don't tell you on Swappa is you STILL have to convert to US998 if you want updates for that "carrier unlocked" H931 phone unless you're an AT&T customer.
You relocked what and used what KDZ? What 20H? Are you saying you used your LGUP dump to go back to H931 20H?
Wait, Sprint? You have an LS998? I thought you had H931? Sprint users have to have native LS998.
This paragraph is very confusing. Also why are you selling your phone?
"Are you saying you used your LGUP dump to go back to H931 20H",
no, but is that possible? I have "factory" 931 in a zip, they are all img format, can lgup use those to go to h931? That would be good.
"Wait, Sprint? You have an LS998? I thought you had H931? Sprint users have to have native LS998. This paragraph is very confusing. Also why are you selling your phone?"
It's complicated... no! it's not! I'm kidding I have **3** V30 2 are ls998 (originally) and the other is the H931. I initially got the h931 but decided to go with an ls998 because of possible issues with aosp roms. And because I liked the ls998 ease with aosp roms (the 3 diff ones I tried all booted even when they'd last had 20g on them). Then I liked that ls998 so much I found one on ebay that was described as 'exactly what you'd get from the Sprint store'. Got it and was mfg'd 6 mo ago. Brand new. OEM box. Serial numbers matched
it's complicated - but fun Cheers
"Are you saying you used your LGUP dump to go back to H931 20H",
no, but is that possible? I have "factory" 931 in a zip, they are all img format, can lgup use those to go to h931? That would be good.
"Wait, Sprint? You have an LS998? I thought you had H931? Sprint users have to have native LS998. This paragraph is very confusing. Also why are you selling your phone?"
It's complicated... no! it's not! I'm kidding I have **3** V30 2 are ls998 (originally) and the other is the H931. I initially got the h931 but decided to go with an ls998 because of possible issues with aosp roms. And because I liked the ls998 ease with aosp roms (the 3 diff ones I tried all booted even when they'd last had 20g on them). Then I liked that ls998 so much I found one on ebay that was described as 'exactly what you'd get from the Sprint store'. Got it and was mfg'd 6 mo ago. Brand new. OEM box. Serial numbers matched
it's complicated - but fun Cheers