Develop Bugs

How do I downgrade marshmallow 6.0 to lollipop 5.1 h815

How do I downgrade marshmallow 6.0 to lollipop 5.1> I have a G4 H815
marshmallow 6.0

go here and download the kdz file you need v10c/d or whatever. then go here and follow the instructions to downgrade to LP from MM. make sure you have LG USB drivers installed too, they can be found here
oh, and apprently there's no difference between europe OPEN and europe General
---------- Post added at 12:44 PM ---------- Previous post was at 12:42 PM ----------
ali442 said:
How do I downgrade marshmallow 6.0 to lollipop 5.1> I have a G4 H815
marshmallow 6.0
Click to expand...
Click to collapse
can i ask though, why do you want to downgrade?

will this work on boos mobile lg g stylo
reg66 said:
go here and download the kdz file you need v10c/d or whatever. then go here and follow the instructions to downgrade to LP from MM. make sure you have LG USB drivers installed too, they can be found here
oh, and apprently there's no difference between europe OPEN and europe General
---------- Post added at 12:44 PM ---------- Previous post was at 12:42 PM ----------
can i ask though, why do you want to downgrade?
Click to expand...
Click to collapse

reg66 said:
go here and download the kdz file you need v10c/d or whatever. then go here and follow the instructions to downgrade to LP from MM. make sure you have LG USB drivers installed too, they can be found here
oh, and apprently there's no difference between europe OPEN and europe General
---------- Post added at 12:44 PM ---------- Previous post was at 12:42 PM ----------
can i ask though, why do you want to downgrade?
Click to expand...
Click to collapse
What if you have an h812? My battery life sucks with marshmallow

Also what is the difference between all the country variants? Can I also use the Open/General variants? Or the Polish version? I'm using a Dutch phone.

PLEASE HELP...after going from mm back to lp everything went fine untill i get to set up wizard and have to put in my email. then it tells me i nead to{ put in the owners account that was previously sync to this phone} I AM THE OWNER...there is no geting around ir....the option to skip is there but not available....its not high lighted....why?...iv never had this happen...i flashed back to mm thinking that was the problem but same thing....any idea?

trinidy said:
PLEASE HELP...after going from mm back to lp everything went fine untill i get to set up wizard and have to put in my email. then it tells me i nead to{ put in the owners account that was previously sync to this phone} I AM THE OWNER...there is no geting around ir....the option to skip is there but not available....its not high lighted....why?...iv never had this happen...i flashed back to mm thinking that was the problem but same thing....any idea?
Click to expand...
Click to collapse
It a security thing, just enter your credentials. Also does that if you change sim cards when travelling.

mb_guy said:
It a security thing, just enter your credentials. Also does that if you change sim cards when travelling.
Click to expand...
Click to collapse
It took a lot more then puting in my info but it's fixed either way...
---------- Post added at 03:52 PM ---------- Previous post was at 03:34 PM ----------
Thank you

jessmalone25 said:
What if you have an h812? My battery life sucks with marshmallow
Click to expand...
Click to collapse
Yes it does. I hate Marshmallow!!

After downgrading to LP my battery life doubled
Sent from my VS986 using Tapatalk

Hello LG G4 users! I finally got my phone. I had a quick look at G4 forums to check what users are saying and I see that many of you don't like MM update but I see that some are still using it. Is battery life really worse? Also I saw some writing about network issues. Is it really that bad or it's usable? Can someone write full list of issues, thanks.

Games work better on 5.1 and for that reason i back form MM to LP. Downgrade is little tricky on LG UP and kdz when refub need tot file.
Wysłane z mojego LG-H815 przy użyciu Tapatalka

Flash Thunderer said:
Games work better on 5.1 and for that reason i back form MM to LP. Downgrade is little tricky on LG UP and kdz when refub need tot file.
Wysłane z mojego LG-H815 przy użyciu Tapatalka
Click to expand...
Click to collapse
Thank you, but that's probably because developers haven't optimized them for MM yet correct?

Hm i think it's not becouse my old Samsung Galaxy S3 on CM13 (android 6.0.1) work good for my games. MM have lags in for example Tapatalk, in LP I not have that. Strange problem is but LG must repair that.
Wysłane z mojego LG-H815 przy użyciu Tapatalka

I want to downgrade but worried i will brick my phone someine please help me marshmallow is using alot of battery yes looks nice but they have so many bug.
Thanks guys

First time is the worst, i feel the same but i downgrade once zm second 20 minut later i change again firmware from v10d to v10e and nothing happen wrong. Use toutrial and all be fine.
Wysłane z mojego LG-H815 przy użyciu Tapatalka

mj66767lg said:
will this work on boos mobile lg g stylo
Click to expand...
Click to collapse
I want to know this too.

What about battery life on Lollipop? can you provide me a screenshot of battery information?

zera89 said:
What about battery life on Lollipop? can you provide me a screenshot of battery information?
Click to expand...
Click to collapse
My battery life almost dubbled after I went from mm back to lp
Sent from my VS986 using Tapatalk

F-L-Y-E-R said:
Hello LG G4 users! I finally got my phone. I had a quick look at G4 forums to check what users are saying and I see that many of you don't like MM update but I see that some are still using it. Is battery life really worse? Also I saw some writing about network issues. Is it really that bad or it's usable? Can someone write full list of issues, thanks.
Click to expand...
Click to collapse
Well! Its quite strange that I found MM performing better than LL in terms of battery life (atleast for me).
On LL, I hardly get 3hrs SOT while on MM I have already crossed 3.5hrs with 40% battery left (Yeah, I updated today morning).
I cant say for sure that LL was bad at battery since I have used it for just 1 day but for MM I'm quite satisfied with the battery life.
Needs some more time to come to much concrete conclusion.:laugh:

New official OTA update B007!

Hi,
I am just receiving new update for my M2-A01L.
As they wrote:
Optimizes various features
Activate voice call
Finally!
UPDATE:
found new call icon, the call works, only on big speaker or headset. Messages works too.
Odoslané z HUAWEI M2-A01L pomocou Tapatalku

Thanks for the information. Just installing the OTA
Sent from my HTC 10 using XDA Labs

If you're Rooted with TWRP on M2 10 A01L LTE:
What i have done:
- reflash stock recovery via Fastboot command (extract original recovery with huaweÏ extractor from original ROM zip)
- remove SuperSU
-download and install OTA
- Reflash TWRP via Fastboot command
- Reflash SuperSU
-Success!
And HuaweÏ update extractor here:
http://forum.xda-developers.com/show....php?t=2433454
I've extracted original recovery from this:
http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=222
Phonecalls are now working with B007 OTA finally!

Links not working... help me please

matata86 said:
Links not working... help me please
Click to expand...
Click to collapse
http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=222
extract and flash only the recovery.img, it's a chinese ROM! (but i think it's the same recovery for all LTE)

zedoc said:
http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=222
extract and flash only the recovery.img, it's a chinese ROM! (but i think it's the same recovery for all LTE)
Click to expand...
Click to collapse
this link http://emuirom123.dbankcloud.com/M2-A01L_EMUI3.1_Android5.1_V100R001C233B025.zip?rid=2351 its broken.

reclick my link above, it's working for me now
extract and flash only the recovery.img, it's a chinese ROM! (but i think it's the same recovery for all LTE ROM)
Envoyé de mon Oneplus One en utilisant Tapatalk

Link not working for me. Can I upload recovery.img to cloud and write link here?

I received the ota, too. Any way to deactivate voice calling? I don't want my tablet showing all my calls.

How to disable SIM card to save battery without taking it out?
Odoslané z HUAWEI M2-A01L pomocou Tapatalku

I ve not received anything

unecc said:
I ve not received anything
Click to expand...
Click to collapse
Try through app called hicare.
Odoslané z HUAWEI M2-A01L pomocou Tapatalku

unecc said:
I ve not received anything
Click to expand...
Click to collapse
Same here, still B003.
Wysłane z mojego HUAWEI NXT-AL10 przy użyciu Tapatalka

I am on 006 and it tells me, there is no update.
Any way to force that update?

xsycox said:
I am on 006 and it tells me, there is no update.
Any way to force that update?
Click to expand...
Click to collapse
Posting the same question in two different ways and on two different threats won't help you. Asked you about the manual check on the other thread, just to read that you already did it on this thread.
Please keep such questions on one thread to keep things easy and make it easier for those who may know to assist you.
Sent from my HTC 10 using XDA Labs

Just updated from B006 to B007, the tablet seem to be a bit slower, isn't true ?

Can I use the stock recovery of the wifi version and use it in the LTE version?

I have a M2 A01w (10 zoll, wifi, not rooted). I have still b006 on the "premium" tablet (android 5.1.1). It's a shame for a new premium tablet.
I'm searching for a custom rom with android 6.0.1.
Is the updatepolicy every time so bad? I thinke it was my first and last try with huawei
I think there will never be a chance to get android 7 on the M2, nougat is out and I'm still on lollipop...

Full number
can you please write full number of build? With other letters and numbers (for A01L, LTE)

m2 a01wv100r001c100b007

What is the highest android version on the Singapore-H815 that can get root?

Im currently on Android 5.1 with root. I'd like to upgrade because i...i just want more emojis :crying:
Also, i need root for wifi tethering regardless of my data plan. The only Gapps i use are quick remote (maybe once a week) and the camera.

We doesn't have 7.x so there aren't any new emojis. Plus LG ones are ugliest I ever seen. Even stock are better(which are ugly as **** either). 6.0 is not worth it as you lose battery life and root as Singapore G4 can't be unlocked(correct me if I'm wrong)
Wysłane z mojego LG-H815 przy użyciu Tapatalka

psm510 said:
Im currently on Android 5.1 with root. I'd like to upgrade because i...i just want more emojis :crying:
Also, i need root for wifi tethering regardless of my data plan. The only Gapps i use are quick remote (maybe once a week) and the camera.
Click to expand...
Click to collapse
i use emoji switcher from playstore not sure if you need root though.
as far as upgrade. if your variant is the one it cant be bootloader unlocked. then theres no way for root. only way to root a bootloader variant is on LP 5.1
and in my case theres antirollback means if you upgrade you can not go back.. you need to know wich version. this is for tmobile G4 version 10n lollipop and 20i marshmallow are V2 i could chage from either one.. but once i flashed 20o thats V3 antirollback. i CANT go back to 20i cause it is V2 antiroll back.. i can switch if i stay in all V3 thats 20o-20p-20q-and 20R.
so you need to find out if you can go back as i think not sure that some can go back as they have always antirollback 0.. if am not mistaken. but better to read and find out for yourself.

raptorddd said:
i use emoji switcher from playstore not sure if you need root though.
as far as upgrade. if your variant is the one it cant be bootloader unlocked. then theres no way for root. only way to root a bootloader variant is on LP 5.1
and in my case theres antirollback means if you upgrade you can not go back.. you need to know wich version. this is for tmobile G4 version 10n lollipop and 20i marshmallow are V2 i could chage from either one.. but once i flashed 20o thats V3 antirollback. i CANT go back to 20i cause it is V2 antiroll back.. i can switch if i stay in all V3 thats 20o-20p-20q-and 20R.
so you need to find out if you can go back as i think not sure that some can go back as they have always antirollback 0.. if am not mistaken. but better to read and find out for yourself.
Click to expand...
Click to collapse
H815 doesn't have anti rollback(mine since 3 updates still has version 0)
Wysłane z mojego LG-H815 przy użyciu Tapatalka

Minto107 said:
H815 doesn't have anti rollback(mine since 3 updates still has version 0)
Wysłane z mojego LG-H815 przy użyciu Tapatalka
Click to expand...
Click to collapse
Which version you have now?

Minto107 said:
H815 doesn't have anti rollback(mine since 3 updates still has version 0)
Wysłane z mojego LG-H815 przy użyciu Tapatalka
Click to expand...
Click to collapse
good to know. but still theres alot of h815 variants and safe thing to do is have the person read and make sure what they have . as maybe some h815 variant do have it i dont want to be responsable for brick. i wish we had that am stuck at V3.

raptorddd said:
good to know. but still theres alot of h815 variants and safe thing to do is have the person read and make sure what they have . as maybe some h815 variant do have it i dont want to be responsable for brick. i wish we had that am stuck at V3.
Click to expand...
Click to collapse
You're on Tmobile right? If so if you flash system only it won't **** your anti rollback(I guess)
Wysłane z mojego LG-H815 przy użyciu Tapatalka

Minto107 said:
You're on Tmobile right? If so if you flash system only it won't **** your anti rollback(I guess)
Wysłane z mojego LG-H815 przy użyciu Tapatalka
Click to expand...
Click to collapse
yeah. am on h811 tmobile. stuck at marshmallow. not sure about that. i think i read somewhere that they have fixed a G4 that was bricked cause of downgrade. cant remeber exactly what it was.. but so far theres no tutorial in case you hard brick phone..

LG G4 Nougat Update

I dont understand that why we still waiting for Nougat? Any updated about that? Please tell me i dont know english so much
LG-H815 cihazımdan Tapatalk kullanılarak gönderildi

V29 installed. Working perfect.

Lonelylighttt said:
I dont understand that why we still waiting for Nougat? Any updated about that? Please tell me i dont know english so much
LG-H815 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
officially V30 NO.
and i dont understand why make a new thread if we have one already.

raptorddd said:
officially V30 NO.
and i dont understand why make a new thread if we have one already.
Click to expand...
Click to collapse
When we get
LG-H815 cihazımdan Tapatalk kullanılarak gönderildi

No one really knows. All the LG supports are saying this month or until the end of this year...
There is just one thing sure - my next phone won't be from LG but probably from Google.

Know if v29 can work on h812?

Lonelylighttt said:
When we get
LG-H815 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
i tought that by now h815 international would have v30. but theres none..
seems no body knows this

i use month or two this https://forum.xda-developers.com/g4/development/h815-nougat-stock-t3659860/amp/ and all working very well.

LG Support said in the third quarter of 2017 that nougat would emerge.
But the third quarter is over. And the G4 still did not get the android 7.
Interesting, android 8 came out. And I do not believe it will come out this month.
Likewise my previous phone lg p725 was supposed to get the android 4 like this, but it stayed in 2.3.6. LG is doing it all the time. There are update droughts in the software.

simuzer said:
LG Support said in the third quarter of 2017 that nougat would emerge.
But the third quarter is over. And the G4 still did not get the android 7.
Interesting, android 8 came out. And I do not believe it will come out this month.
Likewise my previous phone lg p725 was supposed to get the android 4 like this, but it stayed in 2.3.6. LG is doing it all the time. There are update droughts in the software.
Click to expand...
Click to collapse
Actually, LG support said "schedule is based on korea and overseas will be announced seperately" so they never gave a time frame for anything but korea

glirpi said:
i use month or two this https://forum.xda-developers.com/g4/development/h815-nougat-stock-t3659860/amp/ and all working very well.
Click to expand...
Click to collapse
I have h815tr and i cant find a method to root for my phone. Can u help me? I found a video but everyone in comments says Fail.
LG-H815 cihazımdan Tapatalk kullanılarak gönderildi

Lonelylighttt said:
I have h815tr and i cant find a method to root for my phone. Can u help me? I found a video but everyone in comments says Fail.
LG-H815 cihazımdan Tapatalk kullanılarak gönderildi
Click to expand...
Click to collapse
sorry, i do not have root on my phone. i do not need it.

glirpi said:
sorry, i do not have root on my phone. i do not need it.
Click to expand...
Click to collapse
How you use nougat stock rom than? You send a link.
LG-H815 cihazımdan Tapatalk kullanılarak gönderildi

i install and use rom which is on the link what i posted before. i had a marshmallow before also without root. i unlock bootloader via official lg site, install twrp and then nougat from that thread.

Hi Guys
I had a chat yesterday with LG Support they told me that it was google fault has they are the integrating the LG interface unfortunatly I don't know if wath i've been told it's true
Like most people here still waiting for this upgrade mine is LG H815EUR

Support LG
Themongoose said:
Hi Guys
I had a chat yesterday with LG Support they told me that it was google fault has they are the integrating the LG interface unfortunatly I don't know if wath i've been told it's true
Like most people here still waiting for this upgrade mine is LG H815EUR
Click to expand...
Click to collapse
J also had the support LG which confirms me that nougat will be spread on G4 but none dates!

zztop80 said:
J ai egalement eu le support LG qui me confirme que nougat sera deployer sur le G4 mais aucune date !
Click to expand...
Click to collapse
English please.

maydayind said:
English please.
Click to expand...
Click to collapse
We acknowledge receipt of your e-mail.
You contact us about information on the update of your telephone LG G4.
We confirm you that the exit(release) of ANDROID 7 is planned on the European telephones G4. However, the deployment is at present in progress only in Korea.
We thus invite you to wait and to verify regularly the presence of this update via the center of update of the telephone or by the software LG bridge.
( Sorry for my english i m french )

zztop80 said:
We acknowledge receipt of your e-mail.
You contact us about information on the update of your telephone LG G4.
We confirm you that the exit(release) of ANDROID 7 is planned on the European telephones G4. However, the deployment is at present in progress only in Korea.
We thus invite you to wait and to verify regularly the presence of this update via the center of update of the telephone or by the software LG bridge.
( Sorry for my english i m french )
Click to expand...
Click to collapse
What about the Canadian LG H812?

glirpi said:
i use month or two this https://forum.xda-developers.com/g4/development/h815-nougat-stock-t3659860/amp/ and all working very well.
Click to expand...
Click to collapse
But are there any easy to follow guides to install? I've got a h815 from UK, but could never find the right firmware to flash for my model.. My device bootloader is still locked and unrooted...
Sent from my LG-H815 using Tapatalk

Just got an OTA update to v22j

Hello, I just got an update version v22j h930. Did somebody here already install this? What are the changes? The changelog only mention security update.

univerzal said:
Hello, I just got an update version v22j. Did somebody here already install this? What are the changes? The changelog only mention security update.
Click to expand...
Click to collapse
What variant? H930DS? H930? LS998? H930G?
Sent via open market LG US998 V30/V30+

I also got it, h930. Installed it already. Security update is 1 April.

ChazzMatt said:
What variant? H930DS? H930? LS998? H930G?
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
I got it too on my H930. Software update V22j-EUR-XX. Security update level 1. april 2019. I installed it, nothing changed expect for the security patches...

Android 8?

univerzal said:
Android 8?
Click to expand...
Click to collapse
Yes, since it's still starts with a 2. (22j). Nougat on V30 was 1*, Oreo 2*, Pie will be 3*.
South Korea variants will get "30a" Pie (Android 9) for V30 FIRST. The rest of us will get it WEEKS later.
It won't be a surprise.
Sent via open market LG US998 V30/V30+

I also received a notification about the v22j firmware for the h930 today.

After last update my lg is soooo laggy. Even scrolling in "settings" is laggy
Wysłane z mojego LG-H930 przy użyciu Tapatalka

wojtasemaj said:
After last update my lg is soooo laggy. Even scrolling in "settings" is laggy
Wysłane z mojego LG-H930 przy użyciu Tapatalka
Click to expand...
Click to collapse
Try flashing the full image KDZ.
Try clearing cache.

wojtasemaj79505565 said:
After last update my lg is soooo laggy. Even scrolling in "settings" is laggy
Click to expand...
Click to collapse
It is the opposite for me. I feel that ui is smoother and aod and wifi is better. But it might be just the restarting and clearing the cache. Try what ChazzMatt advices you.

I will try. Right now I have changed something in developer options and I have freeze some blotware apps
Wysłane z mojego LG-H930 przy użyciu Tapatalka

attom93 said:
I also received a notification about the v22j firmware for the h930 today.
Click to expand...
Click to collapse
Please upload the .kdz for us us998 variant. Thanks
Sent from my LG-US998 using Tapatalk

GodLovesyou said:
Please upload the .kdz for us us998 variant. Thanks
Click to expand...
Click to collapse
???
US998 variant would be 20i for the next update, which is currently on 20H. This thread has nothing to do with any North American variants.
This is 22j for EU H930. DAYS AGO, it's already been uploaded and TWRP-flashable zip made for H930.

dzver1 said:
I also got it, h930. Installed it already. Security update is 1 April.
Click to expand...
Click to collapse
Can you share screenshot about software information spec?

Kasimpasali1921 said:
Can you share screenshot about software information spec?
Click to expand...
Click to collapse
??
It's Oreo H930 with April 2019 security patch. I'm curious what more do you need to know?
You can just install it via Upgrade mode in LGUP. We have H930 full KDZ posted here in the forum:
https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076