v20 custom rom installation help needed - LG V20 Questions & Answers

Hi, guys, i need some serious help. I have run into trouble.
I have LG v20 and lately, the battery was going very bad giving me SOT of around 3hrs. I searched online and found that a recent Google play services update is messing with phone batteries for a lot of phones and only possible solution at this moment is so to opt for beta Google play services, which i did and it became a disaster. I am now getting SOT of 1hr max and battery goes down quickly. I opted out of beta play services too.
I have never ever done custom rom installation, ever but this recent issue is making me think of doing it now. I have never unlocked bootloader and rest onward procedure. I have been reading the xda but i seem to find only one or two roms for my phone model.
Guys, can you please help me through this? I found some posts regarding the procedure, please let me know if they are the right ones.
1. Unlock Bootloader
2. Rest of steps
Please guide me with the step by step instructions. I am asking this because on many ROM description about the things which can go wrong and they are more than the things that will go right. This scares me.
I found only this rom for my model.
https://forum.xda-developers.com/v20/development/v20-v1-oct-20-16-t3482986
Additional info: I have a Korean LG V20 f800k with android nougat 7.0 and software version f800k10e. I installed oreo via LG UP + Uppercut 6months back and had very horrible battery life just as now, so i reverted back to nougat. I am suspecting that the flashing process didn't go well.

Related

Compass and Sensors - Hardware or Software problems?

A while back, just before the 2.2 OTA update came out for ATT locked streaks I received a replacement streak from dell. I didn't have it long enough before I applied the update to remember if the compass or sensors were working, but I seem to remember the screen would auto rotate just fine.
After the update the screen would not auto rotate at all. I spent a while looking into fixing it, trying things like srchild.com's calibrate-sensor-on-upside-down-dell-streak-after-froyo-22-android-upgrade
But I have a slightly different version of the menu's than that tutorial shows and nothing I did fixed the auto rotate so I eventually just learned to live with it in landscape mode for a while.
Now I realize that no compass or sensor based apps work. I've installed sensor monitor apps and they show no data. The "Calibration" application that shows bubble levels doesn't move at all. I'm starting to think it is a hardware problem but like I said, I am almost sure that screen rotation worked before the upgrade on this device.
Is there a way to verify for sure before calling dell. Their support was a nightmare to deal with the first time.
TIA
Why go through the trouble? Why not root your Streak and flash a custom ROM. They perform much better.
If you don't like them then you could always use the QDL tool to get back to stock but everyone here knows the OTA updates wreak havoc for almost all Android devices
cdzo72 said:
Why go through the trouble? Why not root your Streak and flash a custom ROM. They perform much better.
If you don't like them then you could always use the QDL tool to get back to stock but everyone here knows the OTA updates wreak havoc for almost all Android devices
Click to expand...
Click to collapse
A new ROM, stock or custom, won't fix the problem if there is a hardware issue. Installing a different ROM might help troubleshoot the problem. I would suggest a stock ROM so that if the problem persists there is no questions concerning the warranty. 353 is the latest AT&T ROM and can be downloaded here.
You don't have to root and then install StreakDroid, you can install SD without rooting first.
The updates I have gotten for the Streak have been excellent. I run Stock 351. My streak was purchased unlocked from Dell. In addition the OTA update I got for my Moto Backflip was a huge improvement and the update on my wife's Inspire that enabled the setting to install non-market apps works fine. I would have to say that not everyone here agrees with your assessment of the OTA updates.
To the opening poster I would suggest a reset or reinstall of 353 and then test with no apps installed.
I should've specified the OTAs from DELL are notorious for causing issues.
And you are correct, not everyone here would agree with them, but if you like to tweak and play, then a stock ROM doesn't offer much flexibility, not to mention performance wise.
When I first got my Streak I bricked it, then I revived it with the QDL tool and then went to StreakDroid. Then I even went back to stock to have a baseline to compare with the StreakDroid beta I'm currently using, and I have to say, stock is just that, stock, it's two worlds, performance and battery on stock just don't compare to any of the custom ROMs.
I know this isn't the place for this discussion but I couldn't help but make my point. If you like the stock ROM, I'm happy for you, but I for one have never been much to settle for less, I'm always looking for the latest thing.
Having not looked into updating android a great deal I'd appreciate any corrections if I'm mistaken on this, but I do believe the over the air update that was installed is the 353 version.
My Streak currently reads:
Baseband version: GAUSB1A135331-US
Build number 15697
marvin02 if you still think downloading and installing the the 353 ROM you linked to would help diagnose the issue I'd be more than happy to, please let me know.
cdzo72 I do plan on installing custom rom's and even getting into Android development in the near future but I do not have time for it yet. I would like to make sure I do not have a hardware problem before installing any custom rom's because it will be easier (less time consuming for me) to make a warranty claim if I need to. Unfortunately right now functional and limited is better than cutting edge and time consuming for me when it comes to my Streak.
data_loss said:
. . .
My Streak currently reads:
Baseband version: GAUSB1A135331-US
Build number 15697
marvin02 if you still think downloading and installing the the 353 ROM you linked to would help diagnose the issue I'd be more than happy to, please let me know.
. . .
Click to expand...
Click to collapse
A fresh install would eliminate (mostly) the possibility that your problem is caused by software, not hardware. If you still have the stock recovery on your phone you can just download the .pkg file, put it on your SD Card, rename it to update.pkg and boot into recovery to install.
I do still have the stock recovery.
I downloaded and installed the 353 ROM. It appears that the sensors are not working (no auto screen rotation). I also tried a factory reset after the update just for giggles, no change.
If I'm not mistaken the Streak_104_4399_21.pkg that can be downloaded from the streakdroid site is the official att&t 1.6 ROM. Would it be worth downloading and downgrading to that to test?
Or at this point do I just endure the call to dell support?
Is there any kind of documentation available for the fastboot menu on the streak? There seems to be options available for sensor stuff in there but I don't want to be just clicking through them without knowing what they do.
One hour on the phone ( which was not much fun ) and a couple days later and I have a replacement. It is a refurb, but in good condition and it works. Thanks all for the help.
Sent from my Dell Streak using XDA App

Confused Noob+H990DS - Unlock/Root+TWRP Official Custom ROM possible (W/ 2. Screen)?

hi folks!
I am pretty confused now. I am looking to get the V20 H990DS, but i am more confused now after reading here. My questions:
1. Is Bootloader unlock possible?
2. Can i install TWRP?
3. Can i root?
4. There is LOS official i know, but is the problem with 2. screen now fixed / going to be fixed?
Seems so good of a device, but i am insecure about it now after reading here. My old Mi4/Cancro is one of the best supported phones out there, so i dont expect it to be the same with V20, but i need working LOS with Root and working 2. screen (or the outlook on it working in the future) to be confident in buying it.
I hope you forgive me my nood questions,
Greetings
With sadly no replys, let me add what i know now:
1. + 2. + 3. Still no easy way in sight AFAIK. EDIT: To be clear: There IS a way, Dirty Santa, but the instructions are somewhat too complicated to be confident with trying. Have had rooted Phones with custom ROMs since over 5 years and never again a stock device, but i dont dare it. The 300€ i payed are much to much to have spend it on a bricked device. Will try to find more dirty Santa noob friendly explanations and post them here. EDIT2: For those who DO dare it, here the thread: https://forum.xda-developers.com/v20/development/dirtysanta-h990-t3624296
4. Second screen still a problem, nothing new heard for quite a long time.
Anyone with knowledge to add or correct, please help! Stock ROM is not as bad as i thought, but without Root, Android is not fully usable for me.
thank you pro for this thread
very useful for me.
Stele88 said:
With sadly no replys, let me add what i know now:
1. + 2. + 3. Still no easy way in sight AFAIK. EDIT: To be clear: There IS a way, Dirty Santa, but the instructions are somewhat too complicated to be confident with trying. Have had rooted Phones with custom ROMs since over 5 years and never again a stock device, but i dont dare it. The 300€ i payed are much to much to have spend it on a bricked device. Will try to find more dirty Santa noob friendly explanations and post them here. EDIT2: For those who DO dare it, here the thread: https://forum.xda-developers.com/v20/development/dirtysanta-h990-t3624296
4. Second screen still a problem, nothing new heard for quite a long time.
Anyone with knowledge to add or correct, please help! Stock ROM is not as bad as i thought, but without Root, Android is not fully usable for me.
Click to expand...
Click to collapse
i dont get about your complain. you said already using phone with root for 5 years so i guess you've been here on xda for a while. if you really want a phone which support custom rom go with phone which support unlock bootloader like HTC, Oneplus, or even xiaomy. its not that hard finding them on XDA. 300euro for briked devices? well, if you read v20 section carefully you knew most people here bought this devices for the camera, audio, and other things like removable battery, etc. i never found someone who bricked their devices while rooting here, even if they do we already had flasher tools like LG up which already tested fully working by some members. and whats the problem with second screen? its working for whatever it made for. are you expecting to watch movie on those 2.1 inch display? i had lg v20 h990ds rooted with magisk and had no problem so far. bought some apps like grenify and titanium backup for debloated and my phone rocking solid for abouth 2 month. if you cant wait for LOS just bought lenovo zuk2 or oneplus 3t on the same price range.
No problem doing 1+2+3 with DirtySanta exploit/procedure. It's not as complicated or dangerous as it might seem from the instructions. I thought I had soft-bricked my phone twice after rebooting normally with the old kernel instead of straight to TWRP to update the kernel first, but it was easy to re-flash the 10d factory firmware file I had and start over again without any issues both times.
Basic summary of procedure:
1. Flash factory firmware version earlier than 31 December 2016 (only needed if installed firmware version is after 1 January 2017).
2. Do DirtySanta exploit to unlock bootloader and install TWRP and root.
3. Use kdzwriter to update phone's system/modem/cust partitions to latest firmware version without overwriting unlocked bootloader/TWRP, reinstall root (SuperSU or Magisk) from TWRP.
4. Disable automatic OTA updates so that any future firmwares won't automatically install and overwrite bootloader/recovery and remove root and set ARB 1. If that ever happens then TWRP/root will probably be gone forever.
provided you follow the instructions carefully, it's safe to root with DirtySanta.
xoose said:
No problem doing 1+2+3 with DirtySanta exploit/procedure. It's not as complicated or dangerous as it might seem from the instructions. I thought I had soft-bricked my phone twice after rebooting normally with the old kernel instead of straight to TWRP to update the kernel first, but it was easy to re-flash the 10d factory firmware file I had and start over again without any issues both times.
Basic summary of procedure:
1. Flash factory firmware version earlier than 31 December 2016 (only needed if installed firmware version is after 1 January 2017).
2. Do DirtySanta exploit to unlock bootloader and install TWRP and root.
3. Use kdzwriter to update phone's system/modem/cust partitions to latest firmware version without overwriting unlocked bootloader/TWRP, reinstall root (SuperSU or Magisk) from TWRP.
4. Disable automatic OTA updates so that any future firmwares won't automatically install and overwrite bootloader/recovery and remove root and set ARB 1. If that ever happens then TWRP/root will probably be gone forever.
Click to expand...
Click to collapse
Using the steps on #3, would it be safe to say that we can update the device to oreo and still keep root?
nurse_chuck said:
Using the steps on #3, would it be safe to say that we can update the device to oreo and still keep root?
Click to expand...
Click to collapse
No, right now if you update you'll lose root as the engineering aboot isn't compatible with Oreo and you have possibly non working data, invalid sim issues etc
Sent from my LG-H910 using XDA Labs
cnjax said:
No, right now if you update you'll lose root as the engineering aboot isn't compatible with Oreo and you have possibly non working data, invalid sim issues etc
Sent from my LG-H910 using XDA Labs
Click to expand...
Click to collapse
Too bad. Your earlier post actually got me excited. Hehe. Anyway, hopefully someones starts working on rooting the oreo firmware.
The short answer? @Stele88
Yes. To all of it.
The long answer starts with the Dirty Santa root process. Believe me, I was daunted by it as well, but as long as you follow it (or the noob version of the guide you can find by searching around the same section the original guide is in) and take your time, you'll be okay. It's what I did and I'm now where I am today.
I'll address a couple things since I have the same device as you. If you want to get your device working properly on LineageOS/ResurrectionRemix (LOS with more customisation) then it's a long process.
1. Start by following the bootloader unlock process for Dirty Santa. Depending on what firmware your device gets shipped with, you may need to downgrade to (in the case of the H990DS) the v10c firmware. Once done, then you can Dirty Santa the bootloader and get it unlocked.
2. Once that's done and you're rooted with the initial TWRP from the thread installed, you'll want to look into KDZWriter. It's a program by the same emdroidle who did the Dirty Santa process for us that allows you to update your STOCK system software to newer versions and keep root. You can use it for example with the H990DS firmware KDZ files and go from rooted 10c -> rooted 10f -> rooted 10xx -> etc. until you're on the latest available 7.0 KDZ for the H990DS. This will be the longest part of your process, but it ensures that everything is up to date before going to AOSP/Lineage/Resurrection, specifically the modem partition. I recommend using the TWN region of firmwares if you're just going to convert to a custom ROM anyway, but any region will work fine (the only real difference is that, for example, the Australia region of firmwares comes with more bloat than the TWN region).
2b. You can also use KDZWriter from an updated TWRP you can get in the thread by Phoenix591, his latest TWRP versions have KDZWriter built-in so you don't have to run it off the computer, you can do it all with the kdz files in recovery.
3. Yes, you can root using the Dirty Santa method on v10c kdz firmware. I recommend Magisk for root over SuperSU.
4. There's no official LineageOS that is as up to date as the unofficial ones, and there's no official ones with second screen enabled full stop. That being said, the unoffcial LineageOS 15.1 by x86cpu has been my rock solid daily driver for about 2 months now and I've never had any issues that stop me from using it. The same can be said for ResurrectionRemix 6.2 by Blaises. To use either of these, you will need the updated TWRP from Phoenix591.
4. Second-screen enabled builds of LineageOS and ResurrectionRemix do exist, and in this case ResurrectionRemix is (as of this post) more up-to-date than the LineageOS 15.1 second screen version. If you find yourself needing additional features that aren't in the stock kernels for those ROMs (such as KCAL configuration to help with burn in, among other things), then I maintain the second-screen version of the Gamma Kernel by Omar-Avelar. People are successfully using this with second-screen ROMs and have full functionality. You can purchase the app BoredSigns from the play-store to add additional functions to the second-screen.
As I said at the start, it is a long process, but a very worthwhile one. The jump from stock to custom-ROMs is absolutely incredible. Again, in short, yes. You can get everything you want.
Just do your searching around the forums for the processes I outlined above, ask any questions you have, pre-download your kdz firmwares from HERE and any software you need, and just take your time. It's maybe a couple hours to get setup with a rooted stock system that's up-to-date, and maybe another hour or so to go from stock to Lineage/Resurrection.
P.S: If all goes well with the Dirty Santa process, but you get screen distortion after rebooting when flashing the TWRP from Dirty Santa, just pull the battery instead of rebooting.
Good luck, good searching, and remember to not be afraid to ask questions in the relevant threads.
---------- Post added at 04:50 AM ---------- Previous post was at 04:49 AM ----------
nurse_chuck said:
Too bad. Your earlier post actually got me excited. Hehe. Anyway, hopefully someones starts working on rooting the oreo firmware.
Click to expand...
Click to collapse
It's highly doubtful this will happen, but one can hope. Right now the best way to get Oreo is through a custom ROM, purely because of how security is implemented by LG in the stock Oreo ROMs.
iDefalt said:
It's highly doubtful this will happen, but one can hope. Right now the best way to get Oreo is through a custom ROM, purely because of how security is implemented by LG in the stock Oreo ROMs.
Click to expand...
Click to collapse
Actually it is possible runningnak3d has already said awhile ago he has a process to root stock oreo he's just not releasing it yet so LG can't patch it before the Oreo roll out is complete
Sent from my LG-H910 using XDA Labs

ZTE Axon Mini 7 Firmware

Hi All
can i flash the following firmware on my ZTE Axon Mini - It was purchased from Gearbest
https://www.ztemobile.de/support/downloads/?product_id=2344
current version is 6.0
many thanks
if yours Mini is G version and you live in europe - then yes.
Tommixoft said:
if yours Mini is G version and you live in europe - then yes.
Click to expand...
Click to collapse
done with the gearbest B2017G, update to 7,1,1 , but I can't go in bootloader mode to root
Diomorgan said:
done with the gearbest B2017G, update to 7,1,1 , but I can't go in bootloader mode to root
Click to expand...
Click to collapse
Next time read before doing With 7.1 there is no longer bootloader mode. Downgrade to 6. Also you dont need to unlock it, there is no better ROMs for this rom. Official one is best. I tried them, so you can save time and use official one.
ALso root not working well with it. I had root but somehow i couldn't delete system apps.
Tommixoft said:
if yours Mini is G version and you live in europe - then yes.
Click to expand...
Click to collapse
Sorry if I'm hijacking this thread, if so, I can start another.
I recently purchased this phone (B2017G) from Gearbest as well.
It is still on 6.0.1 Marshmallow.
I have been searching for the right update file, starting with the US version, since that is where I live, but no go. The bootloader says
"E footer is wrong
"E:signature verification failed
"E: open file /cache/fota/error_code error erno = 2
'Installation aborted'
Am I right in thinking I need to find the update with the right signature? I have tried US, Austrian and Russian official ZTE updates with no success so far.. Am I on the right track?
US ZTE Support was as helpful as they could be, but were not familiar with the GearBest global variant. They sent me to the global support site, which won't let me use it, since I'm from the US, lol
Any suggestions? I'm going to try the German update from earlier in this thread after I get home tonight, by the way...
I also purchased mine from Gearbest (B2017G). I believe the phone is for the European market as it comes with a EU plug in the sealed box, but not sure for which country. I tried the firmware for the Spanish model http://www.ztedevice.com/support/detail?id=D4454D33442F45E192A95718509F4586. The update failed.
I just flashed the Nougat 7.1.1 an hour ago from here:
https://forum.xda-developers.com/showpost.php?p=73257562&postcount=13.
It already looks promising - the phone is very cool after update. Previously the phone is always warm, even in standby. I hope the battery life is a big improvement.
If you intend to flash this zip file, make sure your phone is a European model B2017G. As posted before I got this phone from Gearbest as many others.
Hi,
Updated to 7.1.1 by OTA 3 weeks ago when i bought the phone from Amazon.
It seems that we'll get Oréo later...amazing ! thks ZTE !
It is not official that Axon 7 Mini (B2017G) will get Android 8 aka Oreo. ZTE should do the update to Oreo as this is one popular phone still.
reticuli said:
It is not official that Axon 7 Mini (B2017G) will get Android 8 aka Oreo. ZTE should do the update to Oreo as this is one popular phone still.
Click to expand...
Click to collapse
In a chat with ZTE USA assistance last week, the tech mentioned that Oreo will be rolling out for the Axon 7 Mini in the US.
afigienas said:
Next time read before doing With 7.1 there is no longer bootloader mode. Downgrade to 6. Also you dont need to unlock it, there is no better ROMs for this rom. Official one is best. I tried them, so you can save time and use official one.
ALso root not working well with it. I had root but somehow i couldn't delete system apps.
Click to expand...
Click to collapse
Once you downgraded and rooted can you upgrade back and keep the root?
Root is needed for this phone because it doesn't allow to move ANY app to SD.I sort of recovered the backup of my apps and data with Helium without root, but I need more internal space: with root you can even enable adoptable storage.
If only we can get access bootloader and flash modified boot.bin with magisk...
At the moment I can only use it as backup phone, my everyday phone LG G5 has 7gigs of whatsapp stuff that can only be internal, but most part of the 130+ apps I got are shared in the SD card.
I don't even need TWRP actually, just root to move apps to SD (or a firmware that allows it, since it's a firmware option...ZTE decision)
Flashing nougat 7.1.1 is the best thing I've done - it basically fixed the battery drain. I had to charge 3 times a day before the update. Last night the battery was only down 3%. This morning I recharged it to 93% before I left for work. At 5pm after a days normal use, it still had 55% left. It's just amazing. I think the update flashed out all the nastiest including the suspicious apps that come with the phone. I have no idea what they are - 99003, 99033, 99035 and more. I suspect they are malware although I cant be sure. They consume battery and keep the phone awake. The phone was warm even in standby.
priority1 said:
Flashing nougat 7.1.1 is the best thing I've done - it basically fixed the battery drain. I had to charge 3 times a day before the update. Last night the battery was only down 3%. This morning I recharged it to 93% before I left for work. At 5pm after a days normal use, it still had 55% left. It's just amazing. I think the update flashed out all the nastiest including the suspicious apps that come with the phone. I have no idea what they are - 99003, 99033, 99035 and more. I suspect they are malware although I cant be sure. They consume battery and keep the phone awake. The phone was warm even in standby.
Click to expand...
Click to collapse
you mean the stock one or a custom 7.1.1 ?
Diomorgan said:
you mean the stock one or a custom 7.1.1 ?
Click to expand...
Click to collapse
Stock one
Got the 7.1.1 update...
... in a round-about way. Went here http://www.ztedevice.com/support/detail?id=6CCC18CC9451416C8A01BED5174B5762#software and it downgraded my phone to a December 2016 security update.
Flashed the Russian 6.0.1, (had to use the bootloader method for both), then was able to run the Spanish update from ZTE, directly from the System updates menu after extracting the 'update.zip' file from the package and placing it in the root of the SD.
Now running 7.1.1 and happy. I can still access AT&T's US network perfectly, so I didn't destroy the usefulness of my new phone as a phone.
I may eventually put a second T-Mobile sim in it if I think I can live without the SD card's storage...
Edit: I am running a GearBest-purchased phone with 'global' firmware, meaning no official updates available. It is possible that I could have tried to use the Spanish 7.1.1 directly, but I didn't try that before taking the route I did. Just happy *something* worked!
Still no root? Even a firmware where I can patch boot.img with magisk and repack and flash?
I did it with Ulefone S8Pro, but because someone here posted the firmware and it was editable and flashable without getting errors! No TWRP, but who cares, I have adoptable storage and Is essential with those "low" internal memory phones....
A ZTE moderator on the official US site has disconfirmed my report of Oreo on Axon 7 Mini:
"sshasan Z-Community Moderator New YorkPosts: 3,409Z › admin
April 2, 2018 5:40PM
No announcements have been made at this time. If a representative has stated this, they have misspoken."
Click to expand...
Click to collapse
Please disregard my earlier reporting. Although my report was accurate as far as what I had heard, the rep I chatted with was likely mistaken.

Rooted H990DS. Can it be upgraded to oreo? Development is still going on?

I've been looking out in the forums for info about H990DS development. But I find much less info than other models that got their updates earlier.
Last year I rooted with DirtySanta and updated to the lastest kdz available for my region (twn) with help of KDZ Writer by @emdroidle. Who seems unactive since april.
There was also this H990DS info bank thread that has a bunch of information about H990DS development. Like kdz merging for updates & much more stuff.
But the OP got mad because someone implied that was other developer's work and not his. He made a tantrum and deleted all the information to never be seen again.
I know how to follow instructions, but sadly, I am not a developer myself. Also I don't own many smartphones so I could just change devices if I screw this one up.
But I want to know if there is someone still working on this or if it can be done already. Maybe set a bounty or donations if needed?
Is there a way to upgrade rooted stock rom devices to Oreo without making the device unusable in process?
Would it be possible to keep root when upgrading to Oreo? Maybe flashing certain partitions or files?
Or does it has to be a modified stock rom that is root enabled?
I hope at least get a clear answer about if it can or can't be done. Thanks.

Installing Lineage OS on stock LG G6

Hey
after 3 years with my G6, and having too many software problems lately, I decided to try to install LineageOS as a last resort before replacing it.
Lineage which seems to be the most updated custom ROM available currently.
LG G6, H870, Android 9, Kernel 3.18.120
as I didn't do anything related to root/unlocking for the last 3 years, I have a few questions -
1. I want to backup my current "stock" LG ROM - how and when can it be done in this process?
2. what steps do I need to take to make this work? (besides backing up my personal stuff of course..)
is TWRP still recommended?
3. "Update your bootloader (fingerprint reader doesn't work with old bootloaders)"
how exactly?
Thanks ahead for any help.
any help?
Here is a step by step guide: https://forum.xda-developers.com/lg-g6/how-to/guide-step-step-install-android-10-t4141901
I just followed it and it works great :good:
thx
do you know which bootloader I should download from here?
https://sourceforge.net/projects/lg-g6/files/Bootloaders/H870/
thx
do you know which bootloader I should download from here?
https://sourceforge.net/projects/lg-g6/files/Bootloaders/H870/
Anyway..
I got this error:
Unfortunately, your device( Israel, (ISRAEL), LGH870.ISR )does not support unlocking the bootloader.
it seems like there is no solution to this thing

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