[GUIDE] LGUP for all (no root needed)

[neocyke]

Different definitely. V30 is A only device. Flashing overwrites almost everything. V40 is A/B which prolly means the model name is stored differently. Serial number based hash mebbe?

Either way not that big of a deal methinks. Not unless you're trying to use it on a network that doesn't support outside models or trying to sell it off as a different model to someone..

 

[phoneissue]

could anyone confirm after cross flashing the usa unlocked pie on sprint version, does it support tmobile band 71?
i have been searching everywhere without answer.

 

[Alibaba0101]

could anyone confirm after cross flashing the usa unlocked pie on sprint version, does it support tmobile band 71?
i have been searching everywhere without answer.

Hypothetically, yes. Best bet would be to get a tmobile prepaid sim and use cell info lite to see for yourself. I'm in the same situation with the at&t bands. I haven't switched to the v40 from my v30 yet. If in doubt, get the v405qa model and bootloader unlock and root that one.

 

[Ainz_Ooal_Gown]

Hypothetically, yes. Best bet would be to get a tmobile prepaid sim and use cell info lite to see for yourself. I'm in the same situation with the at&t bands. I haven't switched to the v40 from my v30 yet. If in doubt, get the v405qa model and bootloader unlock and root that one.

In theory it should support the bands but you must carrier/sim unlock with Sprint first before attempting this

 

[elcocolo50]

Hi.. I have a sprint factory unlocked that has been damage after hard recovery because lost the sprint logo and the APN settings I use this recommendations and croosflashed sprint with verizon android pie and on first reboot the wirelees doesn't work and make a hard reset and now work very good..thanks to the O.P.

Sent from my AT&T LM-V405 using Tapatalk

 

[lowridincrew,]

In theory it should support the bands but you must carrier/sim unlock with Sprint first before attempting this

Damn so no more Sim unlock with crossflashing huh

 

[DeyEatDaPooPoo]

Following This Procedure for Sprint/GSM Unlocked LM-V405UA

Good afternoon and thank you for all the hard work and time you put into figuring out these things for us that don't know or understand nearly as much of it. Myself I'm a computer hardware guy but don't know much about mobile software. To make sure I understand: can I follow this procedure to both update my completely stock Sprint/GSM SIM-unlocked LG V40 LM-V405UA that's stuck on Android 8.1 Oreo to Android 9 Pie and to change from the stock Sprint firmware that restricts its LTE band support to the US Factory Unlocked firmware that allows for using Band 12 and 71 on T-Mobile and T-Mobile MVNOs? If so, is it recommended to flash the Android update first or the phone firmware? I don't care about losing any data since that's all on my Huawei Mate 9 and I can just transfer it later. If it's not possible is there a good link/resource where I could find how to do it? Thank you all so much in advance.

 

[neocyke]

Good afternoon and thank you for all the hard work and time you put into figuring out these things for us that don't know or understand nearly as much of it. Myself I'm a computer hardware guy but don't know much about mobile software. To make sure I understand: can I follow this procedure to both update my completely stock Sprint/GSM SIM-unlocked LG V40 LM-V405UA that's stuck on Android 8.1 Oreo to Android 9 Pie and to change from the stock Sprint firmware that restricts its LTE band support to the US Factory Unlocked firmware that allows for using Band 12 and 71 on T-Mobile and T-Mobile MVNOs? If so, is it recommended to flash the Android update first or the phone firmware? I don't care about losing any data since that's all on my Huawei Mate 9 and I can just transfer it later. If it's not possible is there a good link/resource where I could find how to do it? Thank you all so much in advance.

For me this is a very hands-off topic since I'm 12hrs ahead of you folks. I have no clear idea which model works on which carrier.. so can't really say..

That said, it makes no sense for you to ota update first. KDZ flashing overwrites whatever you have and it's generally suggested that you remain on oreo prior to any sort of flashing.

Check the LGUP for all thread to get yer kdz groove on.

 

[Ainz_Ooal_Gown]

Good afternoon and thank you for all the hard work and time you put into figuring out these things for us that don't know or understand nearly as much of it. Myself I'm a computer hardware guy but don't know much about mobile software. To make sure I understand: can I follow this procedure to both update my completely stock Sprint/GSM SIM-unlocked LG V40 LM-V405UA that's stuck on Android 8.1 Oreo to Android 9 Pie and to change from the stock Sprint firmware that restricts its LTE band support to the US Factory Unlocked firmware that allows for using Band 12 and 71 on T-Mobile and T-Mobile MVNOs? If so, is it recommended to flash the Android update first or the phone firmware? I don't care about losing any data since that's all on my Huawei Mate 9 and I can just transfer it later. If it's not possible is there a good link/resource where I could find how to do it? Thank you all so much in advance.

So if your phone is Sim unlocked then flashing US Unlocked PIE should give you access to those bands but don't expect this to Sim unlock your locked device.

 

[DeyEatDaPooPoo]

This has been true of almost every manufacturer now. There are no truly unlocked world phones, at least not in the US. Each firmware is locked to the bands for that carrier with little to no ability to cross flash the radios or enable bands. I have at&t in the USA and they have some sort of deal with most carriers that don't allow their firmware to be posted and their phones are all bootloader locked. You can cross flash them and get the bootloader unlocked, but you will always lose a few bands.

The LG v40 US unlocked firmware appears to have more bands than most (v405qa) which is what i cross flashed to my lg v40. It supports:
LTE Bands: 1/2/3/4/5/7/8/12/13/14/17/20/25/26/28/29/30/38/39/40/41/46/66/71;
WCDMA Bands 1/2/4/5/8;
GSM 850/900/1800/1900 MHz; 800 MHz
CDMA; 1.9 GHz CDMA PCS; Secondary 800 MHz CDMA

Although after cross flashing this rom, my phone firmware still show v405ua model#. So I'm not sure that it fully has worked or if the v405qa is just a varation of the v405ua rom.

Reading your posts it seems I'm in the same boat as you are since you have a Sprint/GSM unlocked variant that you flashed to US Unlocked that you're using on AT&T. In my case I'll be using it AT&T as well (Cricket specifically), and later on probably Metro when I move so the most important newer bands I'd want to have access to that you don't on the Sprint firmware are 12, 30, and 71. From what I understand, unless you want the ability to put a custom or modified OS on the phone (which I don't), it's completely unnecessary to unlock the bootloader and then root... meaning, that if I just want to cross flash from the stock Sprint/V405UA firmware to US Unlocked/V405QA firmware I don't need to do either of those things and this guide should work fine and give me access to those bands I can't currently use right? After doing that would software updates also change over to be handled by LG directly or would they still be handled by (incredibly slow and crappy) Sprint?

TYVM in advance.

For me this is a very hands-off topic since I'm 12hrs ahead of you folks. I have no clear idea which model works on which carrier.. so can't really say..

That said, it makes no sense for you to ota update first. KDZ flashing overwrites whatever you have and it's generally suggested that you remain on oreo prior to any sort of flashing.

Check the LGUP for all thread to get yer kdz groove on.

Ah, I see. Honestly that's just one of the things that suck so bad regarding cell service in the US: you think you've bought a phone that is flexible and should work on each network it supports to its full potential, but they intentionally gimp/restrict them from using certain bands on the other networks as a way to deter you from going there, or if you go there the experience is subpar so you go back. Meanwhile, they still get away with calling it "unlocked" because it technically supports them. The whole reason I'm thinking of doing this is because of the absolute pile of dog crap the Sprint firmware is. Not only do they horribly gimp the device by artificially locking out very useful AT&T and T-Mobile bands but they drag their ass the most out of any carrier when it comes to pushing out software updates... can't believe I'm still stuck on 8.1 thanks to them. Gonna make sure to cross flash to the US Unlocked firmware first. Thank you for all your help.

So if your phone is Sim unlocked then flashing US Unlocked PIE should give you access to those bands but don't expect this to Sim unlock your locked device.

Thankfully mine is unlocked. I would never get a locked phone unless it was for free, regardless of how easy it would be to unlock it. Would be quite ironic and infuriating if cross flashing did the opposite of what you'd want and ended up locking the phone to a specific carrier lol.

 

[neocyke]

That's one thing that I like about asian carriers. Yeah we get tech updates years later than everywhere else (there's no plan for 5G right now) but you can grab just about any other phone, slot in a sim and it'll work - provided it's not running US fw apparently. About updates, on previous LG phones I've used that weren't bl unlocked and rooted, OTA updates worked. That changed from the G6 & V30 looks like as there's no longer OTA but there's possibly an option available using LG Bridge. Of course there's now plain old kdz flashing since we have LGUP running.

 

[leepc]

This has been true of almost every manufacturer now. There are no truly unlocked world phones, at least not in the US. Each firmware is locked to the bands for that carrier with little to no ability to cross flash the radios or enable bands. I have at&t in the USA and they have some sort of deal with most carriers that don't allow their firmware to be posted and their phones are all bootloader locked. You can cross flash them and get the bootloader unlocked, but you will always lose a few bands.

The LG v40 US unlocked firmware appears to have more bands than most (v405qa) which is what i cross flashed to my lg v40. It supports:
LTE Bands: 1/2/3/4/5/7/8/12/13/14/17/20/25/26/28/29/30/38/39/40/41/46/66/71;
WCDMA Bands 1/2/4/5/8;
GSM 850/900/1800/1900 MHz; 800 MHz
CDMA; 1.9 GHz CDMA PCS; Secondary 800 MHz CDMA
https://www.lg.com/us/cell-phones/lg-V405QA7-unlocked-v40

Although after cross flashing this rom, my phone firmware still show v405ua model#. So I'm not sure that it fully has worked or if the v405qa is just a varation of the v405ua rom.

I also have an unlocked ATT V405UA with Android Pie V405UA20e firmware.
I can use it on T-Mobile network but LTE reception is not as strong as my unlocked iPhone X.

Also, this unlocked ATT version misses most phone calls when inside my house.
So if I flash from ATT Android Pie to V405QA7 firmware, will it get better LTE reception?
Will V405QA7 firmware enable the Volte or Wifi calling on T-Mobile?

LG V405QA7
https://www.fullstockfirmwaredownload.com/lg/

 

[53JH]

While I was flashing the laf.img,it showed 'Cannot flash this partition in unlocked state'.
I deleted BOTH laf ab before,so I couldnt get into the download mode.
Thank you for your help.

 

[leepc]

This has been true of almost every manufacturer now. There are no truly unlocked world phones, at least not in the US. Each firmware is locked to the bands for that carrier with little to no ability to cross flash the radios or enable bands. I have at&t in the USA and they have some sort of deal with most carriers that don't allow their firmware to be posted and their phones are all bootloader locked. You can cross flash them and get the bootloader unlocked, but you will always lose a few bands.

The LG v40 US unlocked firmware appears to have more bands than most (v405qa) which is what i cross flashed to my lg v40. It supports:
LTE Bands: 1/2/3/4/5/7/8/12/13/14/17/20/25/26/28/29/30/38/39/40/41/46/66/71;
WCDMA Bands 1/2/4/5/8;
GSM 850/900/1800/1900 MHz; 800 MHz
CDMA; 1.9 GHz CDMA PCS; Secondary 800 MHz CDMA
https://www.lg.com/us/cell-phones/lg-V405QA7-unlocked-v40

Although after cross flashing this rom, my phone firmware still show v405ua model#. So I'm not sure that it fully has worked or if the v405qa is just a varation of the v405ua rom.

I want to flash an unlocked LV405UA ( ( Pie: V405UA20a ) to V405QA7 ( Pie : V405QA720a_03_NAO_US_OP_0529.kdz )
I followed the 4 steps of this tutorial but got error : 0x6004, CrossDL USC_US>OPEN_US

Then I replaced DLL with DLL V40 1.9.39.7 ( https://www.mylgphones.com/lgup-dll-for-lg-v40-thinq-version1-9-39-7.html )
And also replaced LGUP_UI_Config_m250n with UI_Config_V40_LGUP_1_16.
But still gave me the same error.

can you share your steps to flash from V405UA to V405QA7 successfully ?
Thanks !

 

[Alibaba0101]

Hypothetically, yes. Best bet would be to get a tmobile prepaid sim and use cell info lite to see for yourself. I'm in the same situation with the at&t bands. I haven't switched to the v40 from my v30 yet. If in doubt, get the v405qa model and bootloader unlock and root that one.

In case anyone else is looking to do this. I cross flashed the v405qa to my unlocked sprint v405ua and the at&t bands/radio are working. I switched to the phone today and at some point it used both band 66 and band 30 which the sprint lg v40 does not support natively. Look at my earlier post for which bands the v405qa firmware supports.

---------- Post added at 03:34 AM ---------- Previous post was at 03:33 AM ----------

I also have an unlocked ATT V405UA with Android Pie V405UA20e firmware.
I can use it on T-Mobile network but LTE reception is not as strong as my unlocked iPhone X.

Also, this unlocked ATT version misses most phone calls when inside my house.
So if I flash from ATT Android Pie to V405QA7 firmware, will it get better LTE reception?
Will V405QA7 firmware enable the Volte or Wifi calling on T-Mobile?

LG V405QA7
https://www.fullstockfirmwaredownload.com/lg/

From what i can tell teh v405qa7 supports more tmobile bands including B71. Worth a try.

---------- Post added at 03:36 AM ---------- Previous post was at 03:34 AM ----------

I want to flash an unlocked LV405UA ( ( Pie: V405UA20a ) to V405QA7 ( Pie : V405QA720a_03_NAO_US_OP_0529.kdz )
I followed the 4 steps of this tutorial but got error : 0x6004, CrossDL USC_US>OPEN_US

Then I replaced DLL with DLL V40 1.9.39.7 ( https://www.mylgphones.com/lgup-dll-for-lg-v40-thinq-version1-9-39-7.html )
And also replaced LGUP_UI_Config_m250n with UI_Config_V40_LGUP_1_16.
But still gave me the same error.

can you share your steps to flash from V405UA to V405QA7 successfully ?
Thanks !

I paid Vlad to bootloader unlock my device and he used octoplus to flash the v405qa7 firmware to it. It was definitely worth it. Assuming your boatloader is unlocked already, you may be able to use fastboot to flash the kdz. Or if you followed the OP, looks like you can replace your laf partition with his modified one and then use LGUP to cross flash your kdz bypassing the version check.

 

[leepc]

In case anyone else is looking to do this. I cross flashed the v405qa to my unlocked sprint v405ua and the at&t bands/radio are working. I switched to the phone today and at some point it used both band 66 and band 30 which the sprint lg v40 does not support natively. Look at my earlier post for which bands the v405qa firmware supports.

---------- Post added at 03:34 AM ---------- Previous post was at 03:33 AM ----------



From what i can tell teh v405qa7 supports more tmobile bands including B71. Worth a try.

---------- Post added at 03:36 AM ---------- Previous post was at 03:34 AM ----------



I paid Vlad to bootloader unlock my device and he used octoplus to flash the v405qa7 firmware to it. It was definitely worth it. Assuming your boatloader is unlocked already, you may be able to use fastboot to flash the kdz. Or if you followed the OP, looks like you can replace your laf partition with his modified one and then use LGUP to cross flash your kdz bypassing the version check.

I just flashed my unlocked V405UA Pie to V405QA7 Pie by using 1.15 LGUP_CMD.exe
For who are interested crossflashing unlocked V40, check out this great tutorial below. very detailed and easy steps.
https://www.mylgphones.com/how-to-flash-stock-pie-kdz-firmware-on-lg-v40-thinq-with-lgup.html?amp

Now my V405UA able to get Volte and WIFI calling on T-mobile network.
I hope band 66 and 71 already been turned on but I am not sure how to verify it without root.

 

[T3R4BYTE]

Good stuff coming for this device..

 

[Alibaba0101]

Now my V405UA able to get Volte and WIFI calling on T-mobile network.
I hope band 66 and 71 already been turned on but I am not sure how to verify it without root.

I know band 66 is enabled by switching to the v405qa firmeware for sure. Use cell info lite while you are driving. it will show every band your phone is using every time it switches cell sites or bands. Or you can go into the service menu and lock that band in and see if you still get signal in an area that has band 71 (but i wouldn't advise it using the service menu route).

---------- Post added at 06:41 PM ---------- Previous post was at 06:38 PM ----------

I just flashed my unlocked V405UA Pie to V405QA7 Pie by using 1.15 LGUP_CMD.exe
For who are interested crossflashing unlocked V40, check out this great tutorial below. very detailed and easy steps.
https://www.mylgphones.com/how-to-flash-stock-pie-kdz-firmware-on-lg-v40-thinq-with-lgup.html?amp

.

Does this method leave the bootloader locked?

 

[phoneissue]

please use this map to confirm if you have band 71 coverage :
https://maps.t-mobile.com/pcc.html?map=mvno-roamd-34l
just drop pin on your area and it will show all the available tmobile frequency,
if you do have b71 coverage, you can dial 277634#*# and go to "band selection" to lock your phone
to b71, and then go to "engineering mode" to check if it is connected to band 71.
wair for your update.

I just flashed my unlocked V405UA Pie to V405QA7 Pie by using 1.15 LGUP_CMD.exe
For who are interested crossflashing unlocked V40, check out this great tutorial below. very detailed and easy steps.
https://www.mylgphones.com/how-to-flash-stock-pie-kdz-firmware-on-lg-v40-thinq-with-lgup.html?amp

Now my V405UA able to get Volte and WIFI calling on T-mobile network.
I hope band 66 and 71 already been turned on but I am not sure how to verify it without root.

 

[phoneissue]

"From what i can tell teh v405qa7 supports more tmobile bands including B71. Worth a try.“：

v405qa7 is usa unlocked version which supports b71 as listed on both lg and tmobile.
what puzzles me is att and sprint version, both have the same model number: v405ua
sprint version lists b71 support on lg website (tmobile does not list it which makes sense because it is intended for sprint), but att version does not, so after cross flashing v405qa7 on att version, i am not sure if it will enable b71 support, because so far no one can confirm if their sprint version supports b71 or not after flashing v405qa7.

In case anyone else is looking to do this. I cross flashed the v405qa to my unlocked sprint v405ua and the at&t bands/radio are working. I switched to the phone today and at some point it used both band 66 and band 30 which the sprint lg v40 does not support natively. Look at my earlier post for which bands the v405qa firmware supports.

---------- Post added at 03:34 AM ---------- Previous post was at 03:33 AM ----------



From what i can tell teh v405qa7 supports more tmobile bands including B71. Worth a try.

---------- Post added at 03:36 AM ---------- Previous post was at 03:34 AM ----------



I paid Vlad to bootloader unlock my device and he used octoplus to flash the v405qa7 firmware to it. It was definitely worth it. Assuming your boatloader is unlocked already, you may be able to use fastboot to flash the kdz. Or if you followed the OP, looks like you can replace your laf partition with his modified one and then use LGUP to cross flash your kdz bypassing the version check.