Database Users

Lenovo Z2 Plus Stock Indian Firmware Links

###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01017.1_M_ZUI_2.0.093_ST_160811_QPST:
http://www.mediafire.com/file/wiw89...SER_Q01017.1_M_ZUI_2.0.093_ST_160811_QPST.zip
###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01017.1_M_ZUI_2.0.111_ST_160920_QPST:
http://www.mediafire.com/file/vqf00...SER_Q01017.1_M_ZUI_2.0.111_ST_160920_QPST.zip
###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01017.1_M_ZUI_2.0.133_ST_161117_QPST:
http://www.mediafire.com/file/0jb6j...SER_Q01017.1_M_ZUI_2.0.133_ST_161117_QPST.zip
###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01080.2_N_ZUI_2.5.104_ST_170418_QPST:
http://www.mediafire.com/file/f86cs...SER_Q01080.2_N_ZUI_2.5.104_ST_170418_QPST.zip
Flash it via QPST/QFIL or MI Flash tool.
And please someone make a google drive mirror.

When will Indian stock ZUI 3.1 going to be released?

owim said:
When will Indian stock ZUI 3.1 going to be released?
Click to expand...
Click to collapse
Lenovo India has stopped all updates for Indian Z2 Plus.
So, Its only ZUK updating ZUI for Chinese models..
Indian ZUI was only Chinese ZUI with GApps and Theme Engine removed.
ZUI 3.1 is released. There are Stock Recovery flashable as well as, TWRP Flashable builds!
You
You can have a look at the INDEX POST.

kuberrocks96 said:
Lenovo India has stopped all updates for Indian Z2 Plus.
So, Its only ZUK updating ZUI for Chinese models..
Click to expand...
Click to collapse
Thanks a lot. Is this an official, confirmed info or a rumor? I'd really like to see global/Indian ZUI 3.1. I'm on CN ZUI 3.1 at the moment. Uninstalled all bloat but still getting notifications on Chinese sometimes. English only would be a blast!

After so many customs ROMs, now I'm on ZUI 2.5.104 ST (INDIAN VERSION). How should I install latest Chinese ZUI.

owim said:
When will Indian stock ZUI 3.1 going to be released?
Click to expand...
Click to collapse
Never:crying:

this should be fixing the partitions right?

Warranty related issues
Would flashing in Lenovo Z2 Plus Stock Rom (Updating or Downgrading) void warranty ?

Bhaumikm_ said:
Would flashing in Lenovo Z2 Plus Stock Rom (Updating or Downgrading) void warranty ?
Click to expand...
Click to collapse
if u flash a stock rom safely warranty will be void

shaan277 said:
After so many customs ROMs, now I'm on ZUI 2.5.104 ST (INDIAN VERSION). How should I install latest Chinese ZUI.
Click to expand...
Click to collapse
Same here. Now I'm using ZUI _2.0.133_ST

Help plz
arnab1992 said:
###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01017.1_M_ZUI_2.0.093_ST_160811_QPST:
http://www.mediafire.com/file/wiw89...SER_Q01017.1_M_ZUI_2.0.093_ST_160811_QPST.zip
###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01017.1_M_ZUI_2.0.111_ST_160920_QPST:
http://www.mediafire.com/file/vqf00...SER_Q01017.1_M_ZUI_2.0.111_ST_160920_QPST.zip
###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01017.1_M_ZUI_2.0.133_ST_161117_QPST:
http://www.mediafire.com/file/0jb6j...SER_Q01017.1_M_ZUI_2.0.133_ST_161117_QPST.zip
###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01080.2_N_ZUI_2.5.104_ST_170418_QPST:
http://www.mediafire.com/file/f86cs...SER_Q01080.2_N_ZUI_2.5.104_ST_170418_QPST.zip
Flash it via QPST/QFIL or MI Flash tool.
And please someone make a google drive mirror.
Click to expand...
Click to collapse
Which one is for Indian zuk z2 plus rom?

harshyi said:
Which one is for Indian zuk z2 plus rom?
Click to expand...
Click to collapse
Every one

harshyi said:
Which one is for Indian zuk z2 plus rom?
Click to expand...
Click to collapse
This one is the last Indian release
###Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01080.2_N_ZUI _2.5.104_ST_170418_QPST:

Hi,
Anyone having installed the last India QPST Build "Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01080.2_N_ZUI _2.5.104_ST_170418_QPST"
can you pls confirm your baseband version pls? Many Thanks

Jio to Jio (VoLTE) : Call Ending Abruptly [Solved]
mGforCe said:
Hi,
Anyone having installed the last India QPST Build "Lenovo_Zuk_Z2_Z2132_EN_OPEN_USER_Q01080.2_N_ZUI _2.5.104_ST_170418_QPST"
can you pls confirm your baseband version pls? Many Thanks
Click to expand...
Click to collapse
Ok, learnt from other threads that for India ZUI baseband is M8996FAAAANAZM-1.76387.1.92759.1
This is the one which is to be used in case one has issues of Jio to Jio calls ending abruptly.

Update.script package ...anyone having to flash zui 2.0.111 from TWRP Recovery.

Please someone tell me the flashing process

@Rit2005
I think this will help I haven't flashed it in 2 years so I'm not 100% sure. Keep everything backed up & handy just in case. All The Best !

Oreo update Download Links EMUI 8.0

EMUI 8.0 Oreo Download Links for the NOVA 2 Plus-
Download according your build Number
Download-
BAC-L03C212B140 [OTA] http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1596/g79/v101025/f1/full/update.zip
BAC-L21C185B150 [OTA] http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1596/g79/v100570/f1/full/update.zip
BAC-L22C636B140 [OTA] http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1596/g79/v100536/f1/full/update.zip
BAC-L23C469B140 [OTA] http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1596/g79/v98566/f1/full/update.zip
BAC-AL00C00B173 [FULL] http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1714/g88/v98115/f1/full/update.zip
Flashing Guide - https://romprovider.com/2017/11/update-emui-8-0-huawei-nova-2-plus/

can i install full firmware on every build number??
Hi my device is BAC-L21C185B150 .. can i install BAC AL00CB173 on my device beacuse its full rom. Also please tell how to install without root and with stock recovery.. sorry for my bad english.?? Alsohow to install updates..???
.

hallo für Huawei nova 2
PIC-LX9???

How to flash this rom?

rameezyp007 said:
Hi my device is BAC-L21C185B150 .. can i install BAC AL00CB173 on my device beacuse its full rom. Also please tell how to install without root and with stock recovery.. sorry for my bad english. Alsohow to install updates..??
.
Click to expand...
Click to collapse
Hi, its not posible and it can be harmful to install a different version, for installing without root you can do it with the FIrmware Finder for Huawei through your version and using a web proxy
---------- Post added at 06:55 PM ---------- Previous post was at 06:49 PM ----------
turkishboy07 said:
How to flash this rom?
Click to expand...
Click to collapse
There are 3 methods:
1.- Through Root with TWRP (you need Unlocked bootloader)
2.- Using HiSuite (you will need Huawei Updater Tool 2.0)
3.- Using your phones OTA update with Firmware Finder for Huawei (a playstore app)

mark332 said:
EMUI 8.0 Oreo Download Links for the NOVA 2 Plus-
Download according your build Number
Download-
BAC-L03C212B140 [OTA]
BAC-L21C185B150 [OTA]
BAC-L22C636B140 [OTA]
BAC-L23C469B140 [OTA]
BAC-AL00C00B173 [FULL]
Flashing Guide -
Click to expand...
Click to collapse
Hi mark332, im following the update guide u gave us but for some reason, even it detects the version BAC-L03C212B140CUSTC212D001 with its 628 Mbs (my phone is a BAC-L03) after update it stays the same it appears only gives patches but doesnt update to Android 8, is there anything i might not be doing?

Is it possible to use these update files for updating the Huawei Nova 2 (PIC-LX9)?

well full version for BAC-L21C185B150 is not included ..... i have the same build and this update in not oreo !
can you proof oreo from it with screenshot ?

@ahrion this is a guide to brick phone
reported!

How can I install this? Can I flash with 3button method?

Already received that one via official OTA in my Nova 2 Plus, but it still being Nougat. Are the links correct?

zeth385 said:
Already received that one via official OTA in my Nova 2 Plus, but it still being Nougat. Are the links correct?
Click to expand...
Click to collapse
Do you man February security patch ??

My device is BAC-L21 and the build number is BAC-L21C185B102.
Can I use the BAC-L21C185B150 update?

3et545 said:
My device is BAC-L21 and the build number is BAC-L21C185B102.
Can I use the BAC-L21C185B150 update?
Click to expand...
Click to collapse
Its not oreo update...its still android 7

crazylife said:
Its not oreo update...its still android 7
Click to expand...
Click to collapse
I do not understand. Does the build number matter? Or only the device model number (BAC-L21)?

3et545 said:
I do not understand. Does the build number matter? Or only the device model number (BAC-L21)?
Click to expand...
Click to collapse
Sure it do matter.
Only the last 3 numbers is the software number

New update guys

crazylife said:
Sure it do matter.
Only the last 3 numbers is the software number
Click to expand...
Click to collapse
I see, thanks.
Any chance you can provide a step-by-step guide for the third method? I don't want to unlock my bootloader and the second method didn't work for me. As for the third method I did try the mention app, but all it did was download the update file on the device and that's it. It doesn't install the update and the phone doesn't detect it either. I tried from the recovery through internal memory and an SD card but still it didn't detect it.
I would appreciate the help.

3et545 said:
I see, thanks.
Any chance you can provide a step-by-step guide for the third method? I don't want to unlock my bootloader and the second method didn't work for me. As for the third method I did try the mention app, but all it did was download the update file on the device and that's it. It doesn't install the update and the phone doesn't detect it either. I tried from the recovery through internal memory and an SD card but still it didn't detect it.
I would appreciate the help.
Click to expand...
Click to collapse
What software installed in ur device?

crazylife said:
What software installed in ur device?
Click to expand...
Click to collapse
Android 7.0
BAC-L21C185B102

Checking bootloader version on the phone

Hi, how do I check my current bootloader version that is on my phone? And how do i know what version of bootloader will be in any stock rom i want to flash?
I don't want to overwrite with older bootloader. Need to know the current and the next one i will flash.
My device is from Europe and I have NPN25.137-92 installed.. I think this is not the latest stock nougat for my region.
Cheers.

up

up

wiceqq said:
Hi, how do I check my current bootloader version that is on my phone? And how do i know what version of bootloader will be in any stock rom i want to flash?
I don't want to overwrite with older bootloader. Need to know the current and the next one i will flash.
My device is from Europe and I have NPN25.137-92 installed.. I think this is not the latest stock nougat for my region.
Cheers.
Click to expand...
Click to collapse
No need to push your question everyday. If someone is able/wants to answer he will do.
First of all: NPN25.137-92 is not the European firmware, it's the one for India and Brazil.
The latest one in Europe seems to be NPN25.137-93-14, since yesterday there is another update with version number NPN25.137-93-18 out incl. August security patch but until now only US users (software channel RETUS) have confirmed it. For India/Brazil (your firmware) the latest Nougat firmware is NPN25.137-92-14.
Have you fastboot flashed some firmware on your device so that you are on NPN25.137-92 now? That could be the reason you don´t receive any further OTA updates.
Your bootlader version should be visible when you boot into stock recovery.

Yes, I must have flashed pretty wrong firmware, and now I want to get back on the track. Though I dont remember and I dont have knowledge what was flashed before that. Now I wonder what should be my next step in order to have latest European nougat, or oreo.

wiceqq said:
Yes, I must have flashed pretty wrong firmware, and now I want to get back on the track. Though I dont remember and I dont have knowledge what was flashed before that. Now I wonder what should be my next step in order to have latest European nougat, or oreo.
Click to expand...
Click to collapse
Flash latest european firmware NPN25.137-93-14 via fastboot. It can be found somwhere here in the Moto G 5+ threads or you can download it with Lenovo Smart Assistant: https://support.lenovo.com/de/de/downloads/ds101291
That should keep you back on track.
If you can't wait you can update to Oreo with the available OTA found here:
https://forum.xda-developers.com/g5...fficial-moto-g5-g5-plus-t3848246/post77856408 ( Read OP of that thread to find out how). But as I posted above there's a newer nougat firmware out in the US so you may not receive future Oreo updates if you use this OTA.
Sent from my Moto G5 Plus using XDA Labs

Wolfcity said:
Flash latest european firmware NPN25.137-93-14 via fastboot. It can be found somwhere here in the Moto G 5+ threads or you can download it with Lenovo Smart Assistant: https://support.lenovo.com/de/de/downloads/ds101291
That should keep you back on track.
If you can't wait you can update to Oreo with the available OTA found here:
https://forum.xda-developers.com/g5...fficial-moto-g5-g5-plus-t3848246/post77856408 ( Read OP of that thread to find out how). But as I posted above there's a newer nougat firmware out in the US so you may not receive future Oreo updates if you use this OTA.
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
Need an advice: I'm currently on POTTER_NPNS25.137-93-10, OTA says i can update it to POTTER_NPNS25.137-93-14.. Then I could get Oreo OTA from the thread above. In case of any further trouble: will it be safe to return to nougat POTTER_NPNS25.137-93-10 via fastboot? If yes, if then I update again to POTTER_NPNS25.137-93-14, it is safe to take nougat OTA again? And then oreo OTA again? Hope you get my point.

wiceqq said:
Need an advice: I'm currently on POTTER_NPNS25.137-93-10, OTA says i can update it to POTTER_NPNS25.137-93-14.. Then I could get Oreo OTA from the thread above. In case of any further trouble: will it be safe to return to nougat POTTER_NPNS25.137-93-10 via fastboot? If yes, if then I update again to POTTER_NPNS25.137-93-14, it is safe to take nougat OTA again? And then oreo OTA again? Hope you get my point.
Click to expand...
Click to collapse
No, that's not safe. Downgrading is always a risky thing because of the bootloader and taking OTA after that could completely hardbrick your phone.
So if you're once on 93-14 you shouldn't flash an older firmware than this. Same applies to downgrading from Oreo to Nougat.
Sent from my Moto G5 Plus using XDA Labs

Wolfcity said:
No, that's not safe. Downgrading is always a risky thing because of the bootloader and taking OTA after that could completely hardbrick your phone.
So if you're once on 93-14 you shouldn't flash an older firmware than this. Same applies to downgrading from Oreo to Nougat.
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
Well, in case of firmware, I cannot find direct 93-14 fastboot rom for download. I have found 93-10 only, that's why I'm concerned about not having the most up to date rom version on my hard drive to flash in case of<>.

wiceqq said:
Well, in case of firmware, I cannot find direct 93-14 fastboot rom for download. I have found 93-10 only, that's why I'm concerned about not having the most up to date rom version on my hard drive to flash in case of<>.
Click to expand...
Click to collapse
You can download it with Lenovo Smart Assistant, worked for me. I can give you a mirror too, here it is:
https://drive.google.com/file/d/1e4VLFL0FzXsTycC78LPRxHaPqX8MJ3iy/view?usp=drivesdk
Sent from my Moto G5 Plus using XDA Labs

Wolfcity said:
You can download it with Lenovo Smart Assistant, worked for me. I can give you a mirror too, here it is:
https://drive.google.com/file/d/1e4VLFL0FzXsTycC78LPRxHaPqX8MJ3iy/view?usp=drivesdk
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
Thank you. What in case I'm unlocked and in order to use google pay I need custom recovery and flashing magisk. How do i get back to stock oreo recovery then? I know it's a bit of offtopic, but maybe you can help me.

Need help to go back stock

Hi,
i have unlocked my bootloader while i was on POTTER_RETAIL_8.1.0_OPSS28.85-17-6 . I installed twrp and a custom rom and that's fine. Now i want to go back to stock but i apparently can't because the latest firmware i can find on the internet is the OPSS28.85-17-4 and when i try to follow the guides it says i am downgrading the security patches. How can i solve this problem? Do i have to simply wait for the 17-6 firmware to be leaked? :crying:
Edit: I have a xt1687

You can just flash a twrp zip till the firmware is available

debdeep98 said:
You can just flash a twrp zip till the firmware is available
Click to expand...
Click to collapse
Yes i did it. I was just wondering if that's my only option for now , ty

Prowy333 said:
Hi,
i have unlocked my bootloader while i was on POTTER_RETAIL_8.1.0_OPSS28.85-17-6 . I installed twrp and a custom rom and that's fine. Now i want to go back to stock but i apparently can't because the latest firmware i can find on the internet is the OPSS28.85-17-4 and when i try to follow the guides it says i am downgrading the security patches. How can i solve this problem? Do i have to simply wait for the 17-6 firmware to be leaked? :crying:
Edit: I have a xt1687
Click to expand...
Click to collapse
You can try Lenovo Motorola Smart Assistant:
https://support.lenovo.com/de/de/downloads/ds101291
It should find the latest security patch for your device and save in on your PC.
You can fastboot flash it than.
Btw, it's not that bad to be on 17.4 because 17.6 is the last official security patch/update that Lenovo will release at all.
Sent from my Moto G5 Plus using XDA Labs

Wolfcity said:
You can try Lenovo Motorola Smart Assistant:
https://support.lenovo.com/de/de/downloads/ds101291
It should find the latest security patch for your device and save in on your PC.
You can fastboot flash it than.
Btw, it's not that bad to be on 17.4 because 17.6 is the last official security patch/update that Lenovo will release at all.
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
Thank you. I used the lenovo motorola smart assistant and i managed to download the latest stock rom for xt1687 which is POTTER_OPSS28.85_17_6_cid50_subsidy_DEFAULT_regulatory_DEFAULT_CFC.xml.
I don't know if i can post the image here but you can do it the same way i did. Plug the phone to your pc with the lenovo desktop app installed, enable usb debugging and go to flash. From there select manually from rescue the device and then go to fastboot. It will show the latest official image present in the phone ( even if you have a custom rom) and simply download it. When it finished don't press rescue and the image will be in
C:\ProgramData\LMSA\Download\RomFiles . If this is a repost of any kind i apologize.

Prowy333 said:
Thank you. I used the lenovo motorola smart assistant and i managed to download the latest stock rom for xt1687 which is POTTER_OPSS28.85_17_6_cid50_subsidy_DEFAULT_regulatory_DEFAULT_CFC.xml.
I don't know if i can post the image here but you can do it the same way i did. Plug the phone to your pc with the lenovo desktop app installed, enable usb debugging and go to flash. From there select manually from rescue the device and then go to fastboot. It will show the latest official image present in the phone ( even if you have a custom rom) and simply download it. When it finished don't press rescue and the image will be in
C:\ProgramData\LMSA\Download\RomFiles . If this is a repost of any kind i apologize.
Click to expand...
Click to collapse
You're welcome and thank you for sharing your experience. You are allowed to share that firmware, just zip it and load it up to one of the known hosters like Dropbox or similar. But you're also right, should be possible for everyone else to do the same that you did.
Sent from my Moto G5 Plus using XDA Labs

If anyone wants the stock firmware for xt1687 US version (4/64) OPSS28.85_17_6 this is it. I take no responsibility if this causes you any damage , hope it helps anyone. https://www.dropbox.com/s/pah5x5g1h...y_DEFAULT_regulatory_DEFAULT_CFC.xml.zip?dl=0
EDIT ( Just to let you know, i was on PixelExperience with android 9 before doing the procedure).

Wolfcity said:
You can try Lenovo Motorola Smart Assistant:
https://support.lenovo.com/de/de/downloads/ds101291
It should find the latest security patch for your device and save in on your PC.
You can fastboot flash it than.
Btw, it's not that bad to be on 17.4 because 17.6 is the last official security patch/update that Lenovo will release at all.
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
IMO it's a shame that Lenovo has stopped supporting this phone only after two years! IMO the phone is great for it's price/performance. These short planned obsolescence is ecologically harmful. I am certainly not planning on replacing this phone unless there is another in the price range that is quantum leap better, or until 5G is ubiquitous.

P9 lite - VNS-L21C432B160

Hello there,
I have just received an old P9 lite - VNS-L21C432B160. I has Android 6.0 an EMUI 4. I wanted to flash a custom ROM but I am not able to. I have bootloader unlocked. I am able to instal TWRP 3.0.2-0. But all custom ROMs I tried, gave me ERROR7 or Signal 11. (It is not possible to correct Error7 according to manuals here...)
There is TWRP 3.2.1 for this phone but it doesn't work at all. I found out, it wants EMUI5.x which I do not have. Is it correct that I need to update to Nougat7 and EMUI5 first? I am trying to do it maybe 4 days already. I have tried everything which is available on the internet but I failed. I have original Stock ROM file with Android 6 - it works.. I also have update file for Android 7 (B336), but the phone doesn't want it. According to official manual, I need some kind of transfer package, which is not available.
Can anybody help me with flashing a custom ROM to this phone? I would love to have LineageOS 14.1
Thank you very much
Karel

xykarelxy said:
Hello there,
I have just received an old P9 lite - VNS-L21C432B160. I has Android 6.0 an EMUI 4. I wanted to flash a custom ROM but I am not able to. I have bootloader unlocked. I am able to instal TWRP 3.0.2-0. But all custom ROMs I tried, gave me ERROR7 or Signal 11. (It is not possible to correct Error7 according to manuals here...)
There is TWRP 3.2.1 for this phone but it doesn't work at all. I found out, it wants EMUI5.x which I do not have. Is it correct that I need to update to Nougat7 and EMUI5 first? I am trying to do it maybe 4 days already. I have tried everything which is available on the internet but I failed. I have original Stock ROM file with Android 6 - it works.. I also have update file for Android 7 (B336), but the phone doesn't want it. According to official manual, I need some kind of transfer package, which is not available.
Can anybody help me with flashing a custom ROM to this phone? I would love to have LineageOS 14.1
Thank you very much
Karel
Click to expand...
Click to collapse
Hi Karel,
use Firmware Finder app to update to android 7.
I recommend vpn/dns method.
You should point to B370 FULLOTA-MF-PV one...
All info are inside the app and some videos are on You_tu_be...
You can update the same way to latest firmware.
Good luck... :fingers-crossed:
Dude if you will succeed do not use 3.2.1 twrp, use instead 3.1.1-1 one..
Cheers

Hello Hello, thank you very much !! I was successful. The phone runs with the latest firmware now. I tried to install lineageOS 14 but I am not able to do that. I am stucked at the boot logo .. I found info: "If you stuck on boot screen, change your file system"... filesystem of what? SD card? Phone?
Thanks in advance!
Karel

xykarelxy said:
Hello Hello, thank you very much !! I was successful. The phone runs with the latest firmware now. I tried to install lineageOS 14 but I am not able to do that. I am stucked at the boot logo .. I found info: "If you stuck on boot screen, change your file system"... filesystem of what? SD card? Phone?
Thanks in advance!
Karel
Click to expand...
Click to collapse
Dude, the instructions are so old,
also i never installed LineageOS 14 on my p9 lite. (I do not have it anymore)
I can tell you to use twrp version 3.1.1-1 and I recommend posting it
in the appropriate thread, maybe other users can answer in more detail ..
Regards

Hello, I have the same problem, I want to update my android to android 9 but I didn't really find any tutorials for it, no Roms or anything else,
did you get anything bro please help me?
thanks

MaKhaleD said:
Hello, I have the same problem, I want to update my android to android 9 but I didn't really find any tutorials for it, no Roms or anything else,
did you get anything bro please help me?
thanks
Click to expand...
Click to collapse
Hello dude,
i wish to help but i think it's not possible....
anyway the best you can wish for is having android 7 stock
or some custom version of android 8.
As you wrote you have the cinese variant (G9 Youth). It should have
a different processor and need a personalized rom, can you check it ?
Go in settings, phone info...
Please report your complete firmware version
(example: VNS-L21C432B160/VNS-AL00C00B230)
and chipset version (example: Kirin 650/Snapdragon SD 617)
P.S.: You don't need to post in multiple sections.
It is also considered to be a duplicate and it is
against the rules ...