There is good information on this forum on how to root your k428 (https://forum.xda-developers.com/lg-k10/development/root-twrp-rom-t-mobile-k428-k10-t3582493)
This however, is not possible on anything later than the 10f(?) firmware, due to there being a December 15, 2016 security update.
Firmwares I am pulling from: https://lg-firmwares.com/lg-k428sg-firmwares/
My K10 is on the most recent update 20h(?), the only thing I've done is unlock the bootloader. I'm trying to get it down to an earlier firmware version to be able to root. I have tried:
Uppercut with LGUP:
There are two separate errors I get with this. One is when I select refurbish and it gets to about 4% (On LGUP, not the phone) and it says my ".kdz does not allow refurbishing" or something along those lines.
I have tried update as well, and I get an error at 14%(on LGUP, 10% on device) and I get "invalid command response code" (image attached)
I have tried both of these options with 3 different .kdz files, so the problems aren't just unique to one file.
LG Flash Tool 2014:
When I start there is an error saying no connection to the server and no progress indicated on the phone or computer, even after maybe 1/2 hour.
After LGUP, I do have to bring my phone back with LG Bridge Update Error Recovery, but interestingly no data is lost at all so clearly my phone is not being wiped at all.
How have people successfully downgraded their k428 and how do I?
Also, is the k428 the same as the k428sg? I can't seem to figure this out and the firmwares website has slightly different specs.
I have another phone, just really hoping to switch to this one is it seems quicker, isn't running Touchwiz, has a decent camera, more storage... I won't be switching if I can't get this rooted because I have been spoiled by rooted devices.
der_cobester said:
There are two separate errors I get with this. One is when I select refurbish and it gets to about 4% (On LGUP, not the phone) and it says my ".kdz does not allow refurbishing" or something along those lines.
I have tried update as well, and I get an error at 14%(on LGUP, 10% on device) and I get "invalid command response code" (image attached)
I have tried both of these options with 3 different .kdz files, so the problems aren't just unique to one file.
[...]
After LGUP, I do have to bring my phone back with LG Bridge Update Error Recovery, but interestingly no data is lost at all so clearly my phone is not being wiped at all.
[...]
Also, is the k428 the same as the k428sg? I can't seem to figure this out and the firmwares website has slightly different specs.
I have another phone, just really hoping to switch to this one is it seems quicker, isn't running Touchwiz, has a decent camera, more storage... I won't be switching if I can't get this rooted because I have been spoiled by rooted devices.
Click to expand...
Click to collapse
Having very similar issues, at the moment stuck in a "Firmware update" loop with a T-Mobile K10 K428, after trying to downgrade from 7.0 to 6.0.1.
How are you reverting it to useable form with the LG Bridge app?
It only tells me I have the latest update then goes away.
[nevermind, this part worked]
Managed to bring the device back to functional 7.0 state, but have found no way to downgrade back to 6.0.1.. the regret I feel for allowing the update to happen before rooting the device is indescribable in frikkin words.
Hopefully someone somewhere is working on the root of this computer in Android 7.0, I have 3 of these and I need to do the root to unlock them
last Friday I could downgrade a version 10R to 10G and rooted .
but since yesterday I'm with another to downgrade but am getting error while modem part flashing .
version was 20H , I noticed once upon 20 no possible to back In 10 .
psytr0nic said:
last Friday I could downgrade a version 10R to 10G and rooted .
but since yesterday I'm with another to downgrade but am getting error while modem part flashing .
version was 20H , I noticed once upon 20 no possible to back In 10 .
Click to expand...
Click to collapse
i have been trying to make nougat downgrade to marshmallow for months. still no results. most i get is phone simply not booting OS.
SO,there is no way to downgrade from 20g?
what about about using special tools like Octoplus Box andZ3X Box?
anyone tried?
---------- Post added at 07:54 PM ---------- Previous post was at 07:53 PM ----------
SO,there is no way to downgrade from 20g?
what about about using special tools like Octoplus Box andZ3X Box?
anyone tried?
Worked Fine, min was a K428 with build number MMB29M, sec patch 2016-08-01
I did it as its posted step by step.
Nice Job!
Related
Hello XDA,
I got an LG G4 gifted, and as one of the first things I want to do is to root it. However I seem to have quite some difficulties with it.
My previous phone was a Nexus 4, and I simply rooted with 'Nexus Root Toolkit'.
For this phone there appears to be many, different ways to do that.
First thing I need to be sure is what exact model my G4 is.
In 'Phone Info > Hardware' it simply says H815. In the LG Mobile Support Tool it says H815B (Which gives no result on Google). The phone is from Germany if it helps.
Second thing is that it says I can update to SW version v10c. But when I download the update, it simply throws a 'Invalid Software Package' error at the end of it. The LG Mobile Support Tool says I have no update avalaible instead.
Third thing is that I don't remember if I have to unlock the bootloader to root my phone (did that only once on my N4, forgot if it's needed). If yes, can somebody link me to the appropriate page? (I've read around LG itself released a tool to unlock that?) (Also, I will loose all my data IIRC?)
Last thing, obviously, the most appropriate Root guide for my model. I've read many of them, one requires you to have linux on your PC (Which is a nope), others mentions '10c' (which I suppose is the update I'm unable to get). So far I got myself only very confused. (Root voids warranty? IIRC LG still covers phone with root?)
Thanks in advanced for your help
EDIT: Currently trying with LG Bridge software, seems to work and says my phone is H81520A (So I suppose the part after the device code is the 'SW Version' ?).
EDIT2: Apparently updating with that software worked. Now on v10c (Marshmallow 6.0 - Unless there are other updates waiting)
You can indentify your model by adding your IMEI to the following link: csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=
(look for the field buyer)
The unlock process is described in this thread.
But don't fash SuperSu If you are on Android 6.0, because it will fail to boot. First flash an custom kernel (like this) and then SuperSu.
If you're unable to unlock the bootloader, then there is no possibilty to get root on Android 6.0.
Thanks. It says DEU at the buyer line.
D(eutschland)EU(Europe) I suppose.
And thanks for the link. In the kernel page it says 'download 20a or 20b? What's that number? So I need a Kernel that inclused SuperSU as flashing it on its own will cause that problem in few words?
What about this? http://forum.xda-developers.com/g4/development/repack-kernel-root-android-6-0-t3232387
From what it seems, it's a custom kernel + root. Would I still need to unlock the bootloader? Perhaps using the 'LG Site' section from the thread you linked (http://forum.xda-developers.com/g4/general/unlock-bootloader-install-twrp-root-t3128241)?
The software versions are quite strange on lg phones. 20A was the first test version that was released in poland. The official version now is 20B but phones with a branding have different versions. For example my phone has a vodafone branding and has the version 20A, but it is the same as unbranded 20B. (so it's really strange some times)
Look what is written in the settings under software information.
You need to unlock your bootloader to root your phone on Android 6.0 (this will void your warranty). You're right, it seems that SuperSu is already integrated in the kernel so you don't have flash SuperSu separately. But i am not complete sure because i didn't unlock my bootloader.
Thanks a lot for your help.
I managed to unlock the bootloader, but then I fuffed up..
Accidentally installed SuperSU (Was following that guide, and forgot about what you said).
Now the phone is kinda stuck at the very start, with the LG Logo (Not the animated one, the very first one)...
I'm hopeless now? D:
EDIT
I'm trying to recover with this video (LG G4 KDZ Firmware Restore Unbrick and unroot tutorial -- can't post links yet..)
But the LGFlashTool throws an error at 9% (imgur link -- can't post them fully yet) imgurDOTcom/pR1NYHD
EDIT2
Apparently I'm trying to flash a KDZ with Android 5.x while I'm on 6.0, which is a no. Will try with a 6.0 KDZ if I find one...
Else I hope for LG assistance (Or Amazon support, since the phone is less than 1 week old)
EDIT3
No luck with KDZ, but now the phone is going past to the animated logo, but being stuck there..
EDIT4
This saved me: http://forum.xda-developers.com/showpost.php?p=63843511&postcount=146
Worked perfectly, my phone is back and fully working
Sorry, i wasn't online the last couple of hours, but i'm glad that all worked out for you
X0rzist said:
Sorry, i wasn't online the last couple of hours, but i'm glad that all worked out for you
Click to expand...
Click to collapse
No problem, you were of great help.
I'm currently not trying to root until there is a safe procedure to do so for 6.0
I don't think that there will be an easier option in the near future. You can make a backup with twrp and try to flash the kernel again.
Mmm, currently I have only the bootloader unlocked. No root, no custom recovery.
I don't feel like to play more with these stuff in the near future, after I nearly bricked the G4
Perhaps later on.
Hi I bought a refurbished LG G4 and I set it up and used it for one day and it was great. But I went into the about section and noticed that it wasn't running Android 6.0 yet so I connected it to LG bridge and updated it through the program. Next thing I know after it finished updating it booted into encryption mode asking for a password. I try enter something and it goes to 29 attempts out of 30 if I try it again it just stays there and doesn't change or or go below 29 it has now randomly changed into Chinese too.
I contacted the company I bought it off and explained it to them and said there should have been an explanation in my package. But there wasn't.
It's not allowing me to boot into recovery and I have no idea what to do.
I used this phone for one day and spent a lot of money on this phone and I have no idea what I can do to fix this situation.
thomas.wesley said:
Hi I bought a refurbished LG G4 and I set it up and used it for one day and it was great. But I went into the about section and noticed that it wasn't running Android 6.0 yet so I connected it to LG bridge and updated it through the program. Next thing I know after it finished updating it booted into encryption mode asking for a password. I try enter something and it goes to 29 attempts out of 30 if I try it again it just stays there and doesn't change or or go below 29 it has now randomly changed into Chinese too.
I contacted the company I bought it off and explained it to them and said there should have been an explanation in my package. But there wasn't.
It's not allowing me to boot into recovery and I have no idea what to do.
I used this phone for one day and spent a lot of money on this phone and I have no idea what I can do to fix this situation.
Click to expand...
Click to collapse
not sure if flashing stock firmware will help... now the question is what version of android has right now.?
you can try the back to stock guide... not sure if it will erase everything .. but if you going to downgrade lets say you took the last update antiroll back 3 you can only downgrade to a firmware that its the same antiroll back version.. the last update from my variant its v3.. so ask first... then download firmware flash an d hope its wipes all and start from scrath..
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
It says on the website that it's running Android 5.1.
I tried the KDZ method last night and I would get and error when the upgrage was at 9%.
It's a refurbished phone, if that makes all the difference?
thomas.wesley said:
It says on the website that it's running Android 5.1.
I tried the KDZ method last night and I would get and error when the upgrage was at 9%.
It's a refurbished phone, if that makes all the difference?
Click to expand...
Click to collapse
not sure, you best bet is to post that problem in that thread and provide all info and pic of error..
Use LGUP or LG FLASH TOOL 2014 for going back to the same kdz u were on? Also try to remember when u bought the phone did it had update center when u go into "about" u didnt try OTA via wifi?
Hi all.
I bought a used LG G3, where the guy said this phone had been used to pass around reviewers, so I don't know if this has any factor as to why I'm having issues.
So, issue is, I'm on 4.4.2 atm, and want to upgrade to at least 5, and possibly 6 if this is possible (which it seems to be from what I've seen around the web.) I tried to do it via the phone first, through the built-in update center (current version is V10g-EUR-XX) It sees there is an update for the phone, which I then select to download and install. It then tells me it will download it, and shows the object under my notifications. But then it simply says Cannot download, and just stalls at this point. I've tried both options with wifi only, and over 2g/3g as well.
(At this point I added some screenshots I took, but can't add them, as external links are not allowed for the first 10 posts)
I then tried to go through the LG PC suite, installed the USB drivers etc. When checking for updates, it simply says "Cannot Proceed Upgrade. LG PC Suite upgrades unavailable on this phone."
Where do I go from here? Can I manually update it through the flashtool 2014, or am I looking at rooting this phone, to get be able to upgrade it?
In advance, thank you for your help.
Best Regards,
Dozer.
LG G3
DozerKitty said:
Hi all.
I bought a used LG G3, where the guy said this phone had been used to pass around reviewers, so I don't know if this has any factor as to why I'm having issues.
So, issue is, I'm on 4.4.2 atm, and want to upgrade to at least 5, and possibly 6 if this is possible (which it seems to be from what I've seen around the web.) I tried to do it via the phone first, through the built-in update center (current version is V10g-EUR-XX) It sees there is an update for the phone, which I then select to download and install. It then tells me it will download it, and shows the object under my notifications. But then it simply says Cannot download, and just stalls at this point. I've tried both options with wifi only, and over 2g/3g as well.
(At this point I added some screenshots I took, but can't add them, as external links are not allowed for the first 10 posts)
I then tried to go through the LG PC suite, installed the USB drivers etc. When checking for updates, it simply says "Cannot Proceed Upgrade. LG PC Suite upgrades unavailable on this phone."
Where do I go from here? Can I manually update it through the flashtool 2014, or am I looking at rooting this phone, to get be able to upgrade it?
In advance, thank you for your help.
Best Regards,
Dozer.
Click to expand...
Click to collapse
U CAN UPDATE BY FLASHING LOLIPOP OR MARSHMELLOW KDZ
u can find kdz here: http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/D855/Android+6.0/
flash guide: http://forum.xda-developers.com/showthread.php?t=2785089
heat thanks if im helpfull to u
kp263 said:
U CAN UPDATE BY FLASHING LOLIPOP OR MARSHMELLOW KDZ
u can find kdz here: http://storagecow.eu/index.php?dir=Xda/LG+G3/Stock/D855/Android+6.0/
flash guide: http://forum.xda-developers.com/showthread.php?t=2785089
heat thanks if im helpfull to u
Click to expand...
Click to collapse
Can I upgrade directly from 4.4.2 to 6.0? When I was searching the net, I found a website that said I needed to have updated to latest lollipop, before going to marshmellow.
lg g3
DozerKitty said:
Can I upgrade directly from 4.4.2 to 6.0? When I was searching the net, I found a website that said I needed to have updated to latest lollipop, before going to marshmellow.
Click to expand...
Click to collapse
first update to lolipop then marshmellow
while flashing select csc flash.
kp263 said:
first update to lolipop then marshmellow
while flashing select csc flash.
Click to expand...
Click to collapse
Okay thank you. Can you link me to the correct kdz for lollipop? I'm in northern europe. Didn't seem to be able to find it on your first link to the Marshmellow kdz's.
Good day guys,
So after my phone went dead from a phone carrier update went bad i set up to find a way to fix it, and i did manage to Unbrick it back to android 5.
That was fine and all but on the process of fixing it i found out that the android 6 update is still not available at my country (living in 3ยบ world suck) so after some research i found that my phone (h522f) is the same as h525n and since them i ve been trying to find a way to flash a v20a image with android 6 from the h525 whit no luck.
Tried LGUP, it shows "unknown"
Tried a lot of different version of LG Flash tool (the 2014 version was the one capable of fixing my phone but it does not flash the h525 kdz and the other versions give me a failed previous load error)
Tried KDZ_FW_UPD (does not open)
Tried changing the build.prop
So what i want to ask is if there is any way to flash a firmware from the h525 to my phone or if i have to w8 for lg to release an official update?
So I've just recovered my phone from my 1st attempt at updating to Pie on my unlocked AT&T v35.
But I'm left wondering if the process for updating from Oreo to Pie is somehow different than when I successfully updated from Marshmallow to Oreo.
The process I thought was:
1. Put phone in download mode
2. Connect phone to pc
3. Run the Modified version of LGUP
4. Select your ULM KDZ choice (any of the three will do)
5. Select Upgrade
6. Flash phone
Are any of these steps incorrect and should step 5 be Refurbish instead of Upgrade?
X-Nemesis said:
So I've just recovered my phone from my 1st attempt at updating to Pie on my unlocked AT&T v35.
But I'm left wondering if the process for updating from Oreo to Pie is somehow different than when I successfully updated from Marshmallow to Oreo.
The process I thought was:
1. Put phone in download mode
2. Connect phone to pc
3. Run the Modified version of LGUP
4. Select your ULM KDZ choice (any of the three will do)
5. Select Upgrade
6. Flash phone
Are any of these steps incorrect and should step 5 be Refurbish instead of Upgrade?
Click to expand...
Click to collapse
I used upgrade, when going from ULM 8.0 to ULM 9.0. I would assume you would use refurbish if going from stock to another firmware. Of course assumptions aren't really reliable.
I've been trying to figure out if I should do UPGRADE or REFURBISH as well.
I found this: https://forum.xda-developers.com/lg-v30/how-to/guide-how-to-upgrade-downgrade-restore-t3738917
Says REFURBISH wipes user data, UPGRADE does not. If moving from one image say from AT&T, to the Unlocked firmware I'd assume you want REFURBISH.
So since I used refurbish to go to the ulm software from 7 to 8, do I still need to refurbish going to any of the ulm pie variants?
Shawnashley said:
I used upgrade, when going from ULM 8.0 to ULM 9.0. I would assume you would use refurbish if going from stock to another firmware. Of course assumptions aren't really reliable.
Click to expand...
Click to collapse
That's what threw me for a loop on my first attempt. Since I'd successfully upgrade from the AT&T 7.0 firmware to I believe the Amazon 8.0 ULM firmware without issues, I thought the process would be the same going to 9.0. But I ran the upgrade through LGUP which was the modified version, and it crashed at 74% and sent me down a wonderful rabbits hole of brickage.
X-Nemesis said:
So I've just recovered my phone from my 1st attempt at updating to Pie on my unlocked AT&T v35.
But I'm left wondering if the process for updating from Oreo to Pie is somehow different than when I successfully updated from Marshmallow to Oreo.
The process I thought was:
1. Put phone in download mode
2. Connect phone to pc
3. Run the Modified version of LGUP
4. Select your ULM KDZ choice (any of the three will do)
5. Select Upgrade
6. Flash phone
Are any of these steps incorrect and should step 5 be Refurbish instead of Upgrade?
Click to expand...
Click to collapse
I don't understand how were you on Marshmallow before flashing to Oreo. I'm pretty sure the the V35 launched on Oreo 8.0. But I'm also looking for a way to get from Oreo to Pie on ULM kdz.
I went from AWM12k to ULM10i choosing REFURB and all went well (I followed xatokk's post on the lgV35 subreddit).
When I try to get from ULM10i to ULM20d (Pie .kdz) I guess I only have to drag ULM20d kdz in LGUP window?
I just want to make sure that's not how you bricked your phone before I try REFURB from ULM10i to ULM20d
Any advice would help, I'm a noob at this.
FWIW, partition DL worked fine going first from AT&T firmware to Oreo ULM and then again to Pie. Sadly I had to set up the phone again.
Neophy said:
I don't understand how were you on Marshmallow before flashing to Oreo. I'm pretty sure the the V35 launched on Oreo 8.0. But I'm also looking for a way to get from Oreo to Pie on ULM kdz
Click to expand...
Click to collapse
Sorry, Brainfart, I was completely out to lunch on that. I wanted to flash the latest available security update, but since I'm in Canada I could never get that from AT&T so I had to find a way to flash it and that led me to XDA and the whole LGUP process. So you were correct on that, and I did flash the Amazon 8.0 KDZ I believe without issue.
My brick happened when using the Amazon pie KDZ and using the same Upgrade process in LGUP. The update got to 74% and then crashed. I then tried to run the refurbish option but that crashed as well so by that time, my phone was beyond my knowledge of how to fix it
cmrntnnr said:
FWIW, partition DL worked fine going first from AT&T firmware to Oreo ULM and then again to Pie. Sadly I had to set up the phone again.
Click to expand...
Click to collapse
Partition DL was not available in the process list of the modded version of LGUP I used. Which one did you use? I think I found the right one.
Now, selecting PARTITION DL, do I need to select all like mentioned in the Frankenstein Phone thread for the V30?
Neophy said:
I don't understand how were you on Marshmallow before flashing to Oreo.
Click to expand...
Click to collapse
This phone launched with Oreo and had nothing prior. He's mistaken, confusing some other model.
That's what I did.
The error you experience may be due to a usb cable. a particular usb port on your computer, other software on your computer, and maybe bios settings. The v30 WTF and Frankenphone forums would be good places for background and solutions.
Fingers crossed for a successful flash.
Neophy said:
Partition DL was not available in the process list of the modded version of LGUP I used. Which one did you use? I think I found the right one.
Now, selecting PARTITION DL, do I need to select all like mentioned in the Frankenstein Phone thread for the V30?
Click to expand...
Click to collapse
Here's what I did if you don't already found a way. I also faced an error trying to flash to Pie ULM.kdz.
I don't know why but LGUP for developer patched from 9to5lg.com didn't work for me. I tried PARTITION DL it crashed at 91% and I also had to reboot my PC. I kept the phone plugged and reinstalled LGUP.
My V35 was on AWM12k when I got it. I followed xatokk's post on the lgV35 subreddit to get it to to ULM10i choosing REFURB.
I kept the same .dll I extracted from to ULM10i and I did a REFURB to ULM20d .kdz just dragging it to LGUP.
I hope this can help you.
To update my earlier reply on this topic. Somehow flashing REFURBISH from AT&T stock Oreo to ULM(Unlocked) Pie it failed and bricked my phone. As mentioned in another thread regarding unlocking the bootloader and root, I had to call on @motogvasyag to not only unbrick my phone remotely but he also unlocked the bootloader and rooted it. If anyone has any issues with bricking you might want to contact him. He's fast and does amazing work. I only mention this because I am very appreciative of him and his work. I'm not sure why my flashing failed at around 70 something percent but I'm glad to have my phone working again along with the update to pie and root.
Truth
MorningStarGG said:
To update my earlier reply on this topic. Somehow flashing REFURBISH from AT&T stock Oreo to ULM(Unlocked) Pie it failed and bricked my phone. As mentioned in another thread regarding unlocking the bootloader and root, I had to call on @motogvasyag to not only unbrick my phone remotely but he also unlocked the bootloader and rooted it. If anyone has any issues with bricking you might want to contact him. He's fast and does amazing work. I only mention this because I am very appreciative of him and his work. I'm not sure why my flashing failed at around 70 something percent but I'm glad to have my phone working again along with the update to pie and root.
Click to expand...
Click to collapse
@motogvasyag unbricked my AT&T V35 that was stuck in fastboot from a failed flash. Took care of it right away. Phone is now factory LG on Google Fi, Pie, wifi calling and all three carriers. Highly recommended!