yashsingh1/xdaforums huggingface dataset:
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
Okay so the steps below are for AFTER using the WTF thread to convert device and unlock bootloader; these steps are for canadian model users who would prefer to go back to stock canadian kdz with working root and twrp intact.

Step 1 - Attach converted US998 (bl unlocked and twrp installed) to LGUP.

Step 2 - PARTITION DL the canadian kdz but do not include recovery.

Step 3 - Let phone boot right from kdz flash and it will automatically boot TWRP.

Step 4 - While in TWRP; 1st factory reset AND AFTER format data then reboot recovery. (If not done TWRP has mount issues with cache and or system.)

Step 5 - After TWRP is rebooted flash no-verity-opt-encrypt-6.0.zip + lg-rctd-disabler-1.0.zip and afterwards flash magisk.

Step 6 - While still in TWRP use the option to power device down.

Step 7 - Attach device to PC while holding vol+ and it will automatically start download mode.

Step 8 - PARTITION DL the canadian kdz again EXCEPT uncheck everything BUT stock recovery; let it flash and reboot.

Step 9 - Should reboot 3 - 4 times.

Step 10 - Once booted to setup; get past then activate USB debugging, also open magisk and click yes as many times as it asks you. (Magisk remains because only RECOVERY is flashed at this point)

Step 11 - Download TWRP and rename to just twrp then place it in the root directory of your internal storage.

Step 11 - Connect device to android debug bridge, and start a shell with 'adb shell' command.

Step 12 - then type 'su' and hit enter in order to gain root privilege. (Will have to click accept on super user on device)

Step 13 - then type 'dd if=/sdcard/twrp.img of=/dev/block/bootdevice/by-name/recovery'

If done correctly you should see flashing (almost like fastboot) however you will not have anything happen to your device graphically SO open magisk and click modules then click reboot to recovery and profit! :)

You should be on H933 kdz with TWRP and root.

However for some weird reason, cloud is correct as the battery drain is abysmal. My phone used to go from 9am 100% to about 60% by the time I get home at 5pm. Today it's gone down to 22% from 100% at 9am and it's only 2pm.

[MENTION=4160343]cloud1250000[/MENTION]'s brain was mostly picked for this so he deserves any and all credit; I just confirmed and wrote this up for reference.

Enjoy! :)

PS; this can be reworded, cleaned up, copied and placed anywhere relevant just make sure to credit [MENTION=4160343]cloud1250000[/MENTION] :)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] seadersn:
i copy that into second post and change only the last sentence :D if it would be possible, you'd have just gained five thanks for one post :good: merci.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] seadersn:
k, doors are open! everything sorted out :)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] cloud1250000:
laf is download mode ;) (when using lgup, you're using the laf partition)

so thats not fastboot :s
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] seadersn:
jip, true :D some partition is it, if i only would know which one... i think [MENTION=1089164]running[/MENTION]naked could maybe know this? we should ask him :) he's a real crack, not only with firmwares :good:

btw, christophers and clouds guide is posted in second thread, so ppls could start converting back now :)

btw, chris, does your phone now work better? as you travel around more etc, is the network more reliant as with us998?
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
It has not disconnected once so far. I'm letting the battery cycle for a few days to see if it maybe settles etc.

It is an enormous battery hog compared to US998 but we shall see if there remains a difference. :) I believe on this firmware people on rogers can now use wifi calling and 4G(LTE) instead of only 3G on US998. (3g 4g issue may be determined by my UMTS network)

So all in all it seems to be working fairly well as I'm based in Ontario Canada. :)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] skittles-1999:
Hey,

My original H933 converted to US998 was converted back to H933 by using the steps in post#2 and flashing this ROM after. Everything is working fine and smooth, I cannot comment on the battery issues as I have not let the phone idle ye t. The only problem I have right now is my mobile data. It is not working even though I have reception (I am with Freedom Mobile). The mobile data did work in the US998 rom and it was working when the phone was stock (before bootloader unlock and conversion and root). Any ideas why this is happening? Thanks
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
Unfortunately I found this to be a problem as well! (We had assumed it was OP partition (but I haven't had a chance to sit at my PC and tinker with 2 sick kids :() I believe our radio is not the same as the one packaged. I reverted back to 20f kdz for data to remain intact for now. I just haven't had much time to report back too extensive.

Tip for you though; freeze stock contacts and flash the package matt linked. If you want to test battery yourself you'll see even in idle stock phone app just drains. ( may not be as so with seadersn rom; just is with stock.)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] skittles-1999:
Thanks for the quick reply even with so much on your plate already. Could you please tell me how you reverted back to 20f. Did you DL partition? or use a different method. Does reverting back still allow you to keep TWRP? I had to DL Partition to 20f before flashing seadersn's ROM, and during the initial setup, I noticed that my data was not working even though I had reception. I assumed that seadersn's ROM would have fixed that issue and proceeded to flash it but, to my surprise, data was still down.

Looking forward to your help and instructions but I am in no rush as your kids' health takes priority.

Thanks again.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
When I reverted I just used LGUP to load up US998 kdz full stock, reflashed twrp over with fastboot then as it finished I used twrp to power device down then stuck H933 back on without recovery; then followed the rest of my steps.

If you lost data on the stock kdz, something may be going on more frankenstein then we think heh

But yeah after my inital setup to 20f I then tried out seadersn rom and also lost data so I'm not sure hmm.

Edit - wow I'm so sorry you literally answered your own question in a way ??

You essentially dirty flashed it in a way; go back to US and reflash TWRP as we do not have to re unlock BL
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] seadersn:
hmm, maybe the latest us998 modem or even the 20f modem will help in connection with this 20g firmware? you could try flashing it, i can upload both modems in about 8 to 10 hours.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] cloud1250000:
i had this exact problem with my ls998.. on my h933 it was working fine tho..

tried a bunch of stuff but never figured why.. :'(
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
Sorry just in case you missed my reply because I edited my response.

Use full US998 kdz to convert back to US998 then reflash twrp and then use the canadian kdz without recovery in partition.

That's essentially my way of factory reset as it works fool proof 100% of the time for me and it's easier to convert fully then upgrade rather then downgrading.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] skittles-1999:
Okay, thank you. Will try this method sometime this week :)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] simondadiamond:
Been having the same problem with no data so decided to try this ... I`ve had a long day and flashed the zip instead and disobeyed the huge red words on the first page. Now I am stuck in a bootloop with LDUP not seeing the phone when i get into download mode....

Did i just ruin my phone? anyone know of anything I can do? Any help would be appreciated.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
Have you tried getting into fastboot?

Better yet; which kdz did you flash last? US or CAN?

If US we can save you with fastboot; if CAN I'll have to do some thinkibg.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] simondadiamond:
Thanks for the reply! I was on US998 Oreo then flashed the modified CAN zip file... My computer wouldn't even acknowledge the phone...I took a chance and payed someone on ebay to unbrick it in qualcomm mode. This was not very easy and I had to get inside and short a couple pins inside while plugging in the phone with the battery disconnected, but he was able by remote connection to reflash a working kdz :D.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] seadersn:
aye caramba! :eek: lucky guy, you :D

seriously: glad it was recoverable for you :good: would've been really sh¡tty if it was broken, didn't know that flashing this zip on a non can fw can have these consequences... but obviously though: these two models should for sure have different rsa keys... how much money did the guy want for fixing that?
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] simondadiamond:
costs 35$ which i gladly paid, considering the other option was a paperweight lol.

Yea, leaving all of this here so people know that the big red text is there for a reason haha and if someone is as dumb as me, well all is not COMPLETELY lost....

---------- Post added at 09:17 AM ---------- Previous post was at 09:15 AM ----------

Now onto figuring how to get data working lol, to eventually put a pie rom on my phone! maybe i don't even have to convert back to H933?!

---------- Post added at 09:52 AM ---------- Previous post was at 09:17 AM ----------

So as a Franken phone, data works... but as soon as i do steps in post 2, and revert to H933 Data is broken... same ting last night with 20g and same thing now with 20f...

edit: maybe ill try some of the steps without a SIM card... that seems to be the technique for instlaling PIE roms... not sure if it's for data though....
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
Sadly converted devices are having issues at the moment. ( at least with my own. )

However wow what a roller coaster I'm so sorry you went through all of that but am glad you recovered it.

Have you changed any kdz since? I'm curious if you're willing to snap a shot of your software info for me.

Also double thankful you posted and aren't enraged about it. We are all learning how to reverse engineer LGs stuff so your information is helpful to avoid future problems.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] simondadiamond:
Haha there is always a risk in this. Usually with download mode/twrp it is greatly minimized but im guessing the different partition table made flashing the canadian zip. Over the us998 firmware a big nono because the phone was completely unresponsive. I am however real glad my errors can help hopefully either you guys or others that have accidents like me...

Not sure what snapshot you need or how(a lgup dump?) . but i have flashed a few times since the brick, i am now on H933 20f( flashed all but recovery , the wiped, formatted, installed magisk and no verity and no root check, then flashed just the recovery) over a frankenphone that was working , i think, perfectly.

If a dump of my current system would be helpful i am glad to do so. Otherwise i will probably just got back to frankenphone for the time being... (Would really like a custom rom... Pie would be nice but not much info yet and the one prrson that managed to do so seems to have jumped through all the hoops... Im almost there except for data.........

I think this is what you meant lol! [IMG="software info"]https://i.imgur.com/3aeenBU.png[/IMG]
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
Yup that's exactly what I had meant thank you! I should have used the proper term sorry heh.

I've realized in my instructions I actually left out that we need to downgrade back down to nougat us998 like we did in the conversion process as I'm having errors also going from H933 straight to US998 Oreo.

I've been trying a few things we've mostly covered already but had to take the girlfriend out Christmas shopping. (Yay I'm the chair dad haha) so once I'm home I'll be able to sit down and redo my process completely.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] simondadiamond:
I hear ya! Managed to get my data back by frankensteining my phone, nougat then oreo 998. Now onto... Drumroll..... Christmas shopping with the girlfriend haha. Everyhting seems okay, ill try to directly flash one of the pie roma later and pray i dont brick my phone again lol
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] jeanluc1701@hotmail.com:
Sorry, can you explain this step Step 2 - PARTITION DL the canadian kdz but do not include recovery. (What is PARTITION DL )

Thanks
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] ChazzMatt:
It's the step after #1, where you're using dev patched LGUP.

PARTITION DL is an option in Dev Patched LGUP.

You're choosing all partitions except recovery. Have you not unlocked your bootloader yet? You should know about Dev Patched LGUP... It's used to either convert to US998 or downgrade to earlier firmware.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] bil20:
So safe to assume that we shouldn't be following your steps to go back to Canadian H993 (Nov. patch) as the phone tends to lose data connection. You had to go back to US998, which I am already on , thought about doing this but going through the whole thread it seems like it'd really not be a good idea. I am on the may security patch for US998 (originally H933) , so why not just use the latest 998 security patch to update the phone?

---------- Post added at 03:46 AM ---------- Previous post was at 03:45 AM ----------

So safe to assume that we shouldn't be following your steps to go back to Canadian H993 (Nov. patch) as the phone tends to lose data connection. You had to go back to US998, which I am already on , thought about doing this but going through the whole thread it seems like it'd really not be a good idea. I am on the may security patch for US998 (originally H933) , so why not just use the latest 998 security patch to update the phone?
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] Mad Medik:
Christopherrrg was able to get back to H933 while retaining root, TWRP and a functioning mobile data connection (although he noted battery drain problems). Others, such as myself, haven't been able to achieve the same result. We are hopeful to pin down what the difference was.

As to why, there may be a few factors but here are some: clients on Canadian networks need the Canadian firmware (H933) in order to use features such as VoWIFI and VoLTE. Some have also concluded that they get better signal strength.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] Cordtus:
I flashed this following all the steps after Frankenstein method to 998 and then doing the process in post #2 to flash back to 933 before doing this and it all worked fine but now I have no mobile data even after confirming APN settings.

Would flashing a previous modem or something work? I'm at a loss here... Why update if it breaks your data?
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] simondadiamond:
Here is the guide I followed as I was in the same position as you. Data was back and I took it one step further and flashed a pie rom with a H930 Kernel (that part was scary lol) but ALL is well ... just follow the guide :)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] Cordtus:
Yeah I tried that twice and it didn't work either time. And the second time when trying to revert back to stock kdz it hard bricked my phone and now it will not do absolutely anything except black screen and connect to my pc under Qualcomm 9008 mode.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] simondadiamond:
That happened to me too, a bootloop, in download mode, my phone was not recognized and hard reset just froze. This was caused by flashing THIS ROM over a frankenstein H998. This guy was able to fix my phone remotely..
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] Cordtus:
Ah yeah I came across your other post talking about this... Did you have to disassemble the phone or was it all done through USB?
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] simondadiamond:
Both lol, I had to heat the back with my heat gun, remove the backing, then remove 7 tiny screws and short 2 pins (easiest with a tiny flatheat screwdriver) and insert the USB while shorting the pins... This was to get the qualcomm driver to recognize the phone... but you seem to imply that the computer already recognizes the qualcomm hardware... maybe it will not be necessary for you. If you look on the ebay post he mentions a whatsapp phone number. He answered super quick and might be able to check that with you before paying:) . speaking of which ebay does not "ship" that item to Canada, he promptly sent me a paypal invoice and started helping me within 20 minutes :)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] Cordtus:
Hmm yeah it does recognize and it's installed and everything. Maybe I will give him a try thanks
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] cloud1250000:
Yes you cannot flash this rom over any us998 phone lol.. the partition scheme is quite different.. the h933 system is bigger too.

But! i did try to manually flash the h933 system over the us998 system using dd.. and a bunch of other partititons.. it wasnt a success :p

(Phone would successfully boot for about 15 seconds.. then it would reboot)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] seadersn:
about the non working mobile data: maybe a correctly resized (to the size given in the config file on this partition) can help and make things easier. i don't know which size the gpt dedicates to op partition, this would be interesting. i think it's a default size, in which the original bigger op image doesn't fit and eventually therefore can't be read.

i thought about including the gpt in this zip, or offering a repartitioning zip which needs to be flashed first and then this zip. the partition table is a precondition for flashing this zip succesfully..

i also thought about taking this zip down. it more causes headaches for potential users than it is of help, the process to get to a working rooted h933 is too complicated. what do you think? leave it or remove it? maybe first trying the correct op image sizing (which needs a flash of h933 kdz first because of partition table), if that's not succesful, remove it. not that more ppl own a brick after using this zip on their h933 converted to us988 phone.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
I got it fully working; unfortunately flashing this ROM is which removes data. My instructions are what worked 100% for me. I did NOT flash the H933 rom over stock H933.

However as you can see by other replies; that other user may have refined it better then myself; try here: https://xdaforums.com/lg-v30/development/rom-pixel-experience-t3874289/post78363058

---------- Post added at 12:58 PM ---------- Previous post was at 12:35 PM ----------

As a bit of a side note; how is pie? And battery life for you?
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
I'm starting to wonder this as well; you did state in the main post that you need to have stock H933 base, this partitioning sucks. Why LG changes their variants so differently blows my mind. Customer support would be a breeze if we were all on the same layouts grrr.

I'm thinking maybe we can get the few Canadian users we do have together in a telegram group and maybe get this sorted (would appreciate other carriers as ChatR data works with my method but not for the other Canadian carriers it seems.)
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] seadersn:
let's do this. write me on tgram again pls, i recently deleted plenty of chats there :D
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] Cordtus:
I didn't try to flash this over a 999 or even a converted 933 to 998 directly. I did the Frankenstein method to convert my 993 to 998 then I flashed back to the 933 kdz in 2 parts (first all but recovery via partition dl, then installed the no verity, the encryption one, and magisk, then flashed recovery from partition dl only, and reinstalled twrp through adb shell in a fully booted system.) after there I flashed this modified rom via twrp and realized mobile data was broken so I decided to just start over and go back to us998 but leave it there. However somewhere in this process I began getting twrp error of not being able to mount vendor partition so I couldn't do a full backup for safety.

How did I even get a vendor partition in here?

Anyway after that I tried to do what I had done before with no issues and just flash the stock 933 kdz with dl partition on lgup. This time it would time out during flashing of 'system' and so I tried just flashing back to the 998 the same way and no matter what I did it would time out during system flash. I even tried LG Bridge to repair it and it would eventually fail I'm assuming for the same reason.

Basically I followed that entire process someone else had success with except I left out the part of creating a vendor partition because someone else mentioned it wasn't necessary to do what he and I were trying to accomplish. I didn't even get so far as flashing the modem before deciding to just revert back and this whole mess began. This is why I'm so confused as to how the vendor partition even came into this whole thing.

Then I just got frustrated and hit chip erase after reading about someone else doing that to restore their original firmware through kdz but obviously that was terrible advice because my phone is now a brick in Qualcomm 9008 mode.

I'm trying tonight with the guy on ebay who can fix it so I'll let you know how that goes. In the meantime however I would really like to work out what actually happened here so if anyone wants to discuss this feel free to message me and maybe we can figure it out.

Forgive me if I've done something hideously and obviously wrong here but I'm new to this more complex fiddling around and want to learn more. I'm used to easy flashable devices like nexus phones and my g930w8.
[LG V30 ROMs, Kernels, Recoveries, & Other Developm] christopherrrg:
Haha hey I come from the 925W8s and also nexus devices so I know what you mean; chip erase definitely bricked you; I am glad and also very sorry at the same time that you post this - as during my frustration I literally almost tried that option as well but decided against it. I'm sorry your device is down for the moment. As for the vendor partition being inserted I'm imagining it was the Canadian kdz you had used. (I believe canadian carriers use this partition for their bloatware; [carrier apps]

You've also done absolutely nothing wrong; I believe we are all on the same page.

Us canadian guys can flash ROMs etc but we don't quite have the knowledge the devs like seadersn do. (At least speaking for myself) but we are all tinkerers trying to get our devices to truly be our devices. ;)

To be honest anything us H933 guys do for the time being is pure trial and error.

I've been trying to document all of our procedures and analyze what's going on.

[MENTION=3138121]seadersn[/MENTION] and I use telegram; maybe if you guys would like to join we can get an invite out to you?

I'd imagine the information all of us can put together can be documented and properly posted to avoid any more canadian issues.

---------- Post added at 08:15 PM ---------- Previous post was at 07:56 PM ----------

Message you tonight :) what is time zone? Eastern for me.