[Lenovo Z6 Pro Guides, News, & Discussion] benjieb:
Hi all,

I thought it might be useful have a thread dedicated to talking ONLY about official Chinese Stock ROM.

I received my Z6 Pro with a very poor Global ROM, so quickly decided to try the true official ROM, hoping despite its weaknesses it would get far more frequent updates.

Just for reference, here is how I flashed:

Used as a guide the "UNBRICKING / FLASH FIRMWARE LENOVO Z6 PRO L78051" tutorial from boycracked

Official stock roms can be downloaded here: https://www.androidfilehost.com/?w=files&flid=303091 (CN 11.1.105 'android P' or CN 11.5.229 'Android Q' or even RoW 11.0.405 'Android P')

Required tools and drivers here : https://www.androidfilehost.com/?w=files&flid=303090

Some key steps:

Get phone ready (important) :

Gain access to developer options

Enable USB debugging

Enable unlocking Bootloader (it won't actually unlock it!)

Get computer ready (also important)

Install QDLoader HS-USB Driver 9008

Install latest version of QPST (2.7.474)

Flash with step in boycracked "unbricking Z6 pro" webpage or using this guide here https://xdaforums.com/android/help/rom-lenovo-z6-pro-l78051-qpst-edl-t3947149

This are additional tips to avoid errors :

Copy/move flash rom file to bin subfolder of Qfil in 'program file' might help resolve errors

Get Qfil ready with recommended settings. Make sure “Erase all date before download” is NOT selected in configuration / firehose.

Connect USB cable

Reboot phone in EDL mode (adb command or press power + both volume buttons), COM port should appear in Qfil as "QDLoader 9008"

As soon as phone reached EDL mode and phone shows in Qfil

quickly press Download

. If for any reason it did not work, switch off phone again and reboot to EDL.

Ok so that will take you to official CN rom 11.1.105 which is a very stable android 9 rom released sometime in September.

Or CN 11.5.229, which is currently best choice and will keep being updated.

Now get rid of Chinese apps and install play store from the Chinese App Centre and that's it.

WARNING : DO NOT USE GOOGLEINSTALLER APK AND DON'T INSTALL GOOGLE ACCOUNT MANAGER

Googleinstaller.apk is not needed on CN roms, it will install apps that are not longer required. AND it will brick 11.5.x CN rom based phones!

Some users successfully moved to 11.5.x . Everything worked well until he used googleinstaller.apk

All is needed in CN Roms is playstore that is available in Zui App Center. Just in case make sure you don't have google account manager installed before applying OTA to Zui 11.5!

BE AWARE: There are several limitations or bugs in CN roms:

- (IF U-Touch is turned on) Can't use custom Launchers (Nova, Action...). Unfortunately they don't work and will freeze phone, make U-touch crash / no acces to recent apps. [fixed from CN 11.5.269]

- Backup to Google Drive does not work.

- Whatsapp notifications sometime don't appear until you run the app manually. (fix is simply to : (1) white list app in auto run, (2) lock it in app recent drawer, (3) exclude it from battery optimisation and (4) when reboot phone manually launch app so that it sits in ram).

- Some messaging apps' including Whatsapp's notifications won't generate ring or vibration :

FIX: WhatsApp no sound notification fix for CN roms:

- Get Notificon app from PlayStore (here: https://play.google.com/store/apps/details?id=notificon.gsy.com.notificon) to trigger sound each time selected apps generate a notification in the bar.

- Works for whatsapp, but make sure you disable the unnecessary notifications there like "Media Playback" otherwise Notificon will ring for no reason and you won't be able to listen to voice memos.

- (IF U-Touch is turned on) Morelocale app (which allows to use languages not included in the ROM) also totally crash ZUI... So rom has to be used in English. CONFIRMED WORKING FROM 11.5 CN ROMS !

How to use MoreLocale to get all your apps to use the language of your choice :

.Get the app from play store here: https://play.google.com/store/apps/details?id=jp.co.c_lis.ccl.morelocale

.Enable USB debugging from Developer Options and from a command prompt on PC, type this : adb shell pm grant jp.co.c_lis.ccl.morelocale android.permission.CHANGE_CONFIGURATION

.Everytime you reboot phone, you will need to go to morelocale app and pick the language of your choice!

So really as long as you are ok to fiddle around to tweak stock app and to use English language (or turn off U-touch). ZUI CN is the best official Rom option, if you need to keep bootloader locked.

Since it is untouched stock you will get OTAs to next upgrades:

11.5.269 (Android 10) released mid-January ; it is now a very stable beta release, I used it daily and it works great.

What I noticed:

- fix issues with morelocale and U-Touch.

- Improved photo quality and camera app layout

- Android Q!

- Dark Theme

- Custom launchers now work

- Still no google drive backup / Notificon required for whatsapp sound notifications.

There NOW is a full rom flashable Qfil file available to get directly to CN rom 11.5.229. As BL remains locked and system stock, OTAs will come as and when they are released.

Please report other issues / tips for improvements.

This will no longer be updated as I have now moved to RevengeOS : this is THE Custom rom alternative we were all waiting for. Works 100% great and Lucchetto who created it also managed to port the stock Camera app which means we don't loose the ability to access all cam lenses !

Thanks