[CLOSED][badmania98] Huawei P40 (Lite, Pro, Plus) Guides, News, Discussion & Support

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landluber

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Jan 1, 2013
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Hello. I was given Huawei phone for Christmas and it had EMUI 12 preinstalled on it. Is it impossible to downgrade it at the moment?
 

herve1967

Member
May 26, 2009
8
1
Read here.
First no. 3. If it doesn't work see no. 0.
Hello after my research I found this version but none for my hw-eu region. Should I use this version for the downgrade? And if so should I also use PRELOAD and CUST even if they do not match or only ELS-LGRP4-OVS 10.1.0.128 file? Regards
els-n04-C792.JPG
 

tobi - g

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Nov 16, 2020
6
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Hi off subject but has any one got the Alexa app working properly on a p40 pro ? I can't receive notifications on mine ?
 

badmania98

Senior Member
Sep 23, 2007
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Huawei P40 Pro
Hello after my research I found this version but none for my hw-eu region. Should I use this version for the downgrade? And if so should I also use PRELOAD and CUST even if they do not match or only ELS-LGRP4-OVS 10.1.0.128 file? RegardsView attachment 5501291
Yes. You should use all 3 of them ( that you marked). It is also possible to get an error at the end, because your phone could be on an EMUI11 version (too new) that doesn't allow downgrade.
 
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landluber

Member
Jan 1, 2013
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What phone type, firmware, region, are you talking about?
It's the Nova 8 (ANG-LX2), Is the firmware the build number? If so, it's 12.0.0.138 (C69E9R1P3) GPU Turbo, and it was bought in Mexico. I hope something can be done. I'm a teacher, you see, and I rely on Google apps for absolutely everything I do, and I can't adjust with apps like Gspace, they just don't cut it with everything I need. I really appreciate any information or help you can provide me with (I think we might be going back to online teaching this semester :( so I'm panicking a bit).
 

badmania98

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Sep 23, 2007
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Huawei P40 Pro
It's the Nova 8 (ANG-LX2), Is the firmware the build number? If so, it's 12.0.0.138 (C69E9R1P3) GPU Turbo, and it was bought in Mexico. I hope something can be done. I'm a teacher, you see, and I rely on Google apps for absolutely everything I do, and I can't adjust with apps like Gspace, they just don't cut it with everything I need. I really appreciate any information or help you can provide me with (I think we might be going back to online teaching this semester :( so I'm panicking a bit).
It has been released with Android11 Emui12. You can try with this tutorial. I have no idea if it works.

 
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badmania98

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GOOGLEFIER ON 2022

Googlefier cannot work on ...2022. Pressing on (step) 01 will have no action.
You have to set the phone date to 2021 and googlefier will work.
After migroG has been installed, open it to sign in.
Before sign in with microG, set back automatically for Date.
After your signin , return to Googlefier, skip step 2 and go to step 3.

The source and more details: here.
 
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djpns

Member
Nov 20, 2016
14
2
guys one more question, i have made the modified usb with the 10k Ohm resistor for connecting the phone with the testpoint method, but it keeps saying "usb not recognized" on my pc. Is there a fix or drivers I should install?
 

Christian K

New member
Jan 9, 2022
3
3
You made a big confusion. That tutorial is for Higher version of EMUi (11.0.0.260 for C432) and not for 11.0.0.230 C432.
Was your Phone with 11.0.0.230 C432? In this case you should use HiSuite proxy.

Ok.
Post here a screenshot of About Phone. And let me know what (original) firmware was on it before you use my tutorials.
Same thing happened to me, I have a P40 Pro with 11.0.0.230 C432 and can't use HiSuite Proxy for downgrading, a get an error, what is the best way to downgrade to 10.1.0.121?
 

herve1967

Member
May 26, 2009
8
1
Hello after my research I found this version but none for my hw-eu region. Should I use this version for the downgrade? And if so should I also use PRELOAD and CUST even if they do not match or only ELS-LGRP4-OVS 10.1.0.128 file? RegardsView attachment 5501291
Thank's a lot, for me it's perfect.
Hello after my research I found this version but none for my hw-eu region. Should I use this version for the downgrade? And if so should I also use PRELOAD and CUST even if they do not match or only ELS-LGRP4-OVS 10.1.0.128 file? RegardsView attachment 5501291
For me everything is perfect. Thanks for your help.
In the order I made a backup with HiSuite 10.1.0.550_OVE.
Then I did the downgrade with the Canadian version because the europe version did not exist.
On the other hand, keep the same C792 version in my case. After I installed the GMS services.
Then I did the EMUI updates until I went back to my version 11.0.0.243 (C792E4R3P3) when saving and as if by magic my USB connection and fast charging came back.
I reconnected to HiSuite to re-import my data (contacts, sms, email, photos, videos, documents, some programs but not all and finally some settings but not all).
Now I have the same phone as before but with GMS services.
I just blocked the auto updates from EMUI.
Everything is perfect !
Thank you for everything.
 

luneo

Member
Feb 21, 2016
27
0
@ badmania98

thank you for the answer, no I did not use hisuite proxy, I will test and otherwise follow the tutorial.
thank you
 

Christian K

New member
Jan 9, 2022
3
3
Badmania98 is awesome!! He fixed my P40 Pro like a Pro!! It all took about 6 hours, he worked it with Teamviewer and Telegram and guided through all the processes, was very kind and patient. I TOTALLY recommend hiring him, he's the BEST!!
 

badmania98

Senior Member
Sep 23, 2007
2,062
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Huawei P40 Pro
Badmania98 is awesome!! He fixed my P40 Pro like a Pro!! It all took about 6 hours, he worked it with Teamviewer and Telegram and guided through all the processes, was very kind and patient. I TOTALLY recommend hiring him, he's the BEST!!
6 hours:
-downgrade
-install GMS
-upgrade to 11.0.0.202
-disabled EMUI upgrades
-fixed notifications and other incompatibilities
-suggestions
-Q&A

Thank you too!
 
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  • 26
    Hello!

    Because I answered to the same questions on different threads, I decided to create this thread, where I will provide my experience to you, in one place.

    The followings messages (2-7) contain all major info and tutorials links from this thread.

    All solutions/tutorials are related to the EMUI version that is installed on your phone. Before you start using this phone and upgrade/downgrade the firmware, I suggest you to read this message and after that you can continue reading the thread.


    I am waiting for your questions. I hope that I can help. I will not answer again if I already answered and you haven't read first 7 messages of this thread. I don't like people who are more lazy than I am. :devilish:

    My Phone: P40 Pro C432 EMUI12, push notification fix installed.

    Best regards,
    Daniel

    LE: My support on XDA is free of charge. I will provide/mention free solutions. If you find something interesting on my messages you can provide a Like.
    On PM/Telegram I could provide different solutions that could be not free of charge.
    10
    Downgrade


    IF YOU HAVE GMS ERRORS
    DO NOT RESET THE PHONE TO FACTORY SETTINGS AND DO NOT MAKE EMUI DOWNGRADE

    0. 20220315: Downgrade from EMUI12 is working with HiSuite 11.0.0.610.

    For P40 Pro C432, to downgrade:

    a. from stable EMUI12 12.0.0.218/228 to EMUI11 11.0.0.260 ( P40Pro C432), use the newest original version of HiSuite. At this moment is HiSuite_11.0.0.610_OVE. No proxy has been used.


    Captură de ecran 2022-01-30 163716.jpgphoto_2022-01-21_20-02-18.jpgphoto_2022-01-21_20-03-20.jpg

    b. from ELS-LGRP4-OVS 11.0.0.260 to EMUI11 11.0.0.230 ( P40Pro C432) you can downgrade using the solution described here.


    1. How to solve wrong downgrade+fix USB connection to computer (P40Pro+ firmware on P40 Pro / N39 on N29)
    Here is my guide: - here.


    2. EMUI downgrade procedure chart - here.

    3. from EMUI version
    <11.0.0.260 to EMUI10.1.121( P40Pro C432) EMUI downgrade tutorial - one step : here The procedure is the same for all Huawei phones and regions. You have to use the specific files for every region and phone type. Ask on thread if you dont know what files you need.

    4. Firmware Downgrade with HiSuite proxy and Offline Packages: here (AVOID IT).

    5. HOW TO flash DLOAD FW guide: here

    6. The transfer files between Computer and phone is available on the downgraded firmware (10.1.x.x) when you use a certain USB-c to USB-c cable. In this case a UGREEN, US355, USB-C To USB-C, 3.1, Gen.2, PD, 5A, 100W, 4K, 10 Gbps cable has been used. In the same time, using the original USB cable or other ordinary USB-c to USB-C cable have not activated the file transfer.
    Harmony TP cable works also, in case your computer/laptop doesn't have USB-C port. You can build/make one (search the procedure on YouTube).


    7.In case you get internet connection issue see here.

    8. HiSuite Proxy v3.xx Virus Alert : here.


    Note: 2022.01.01 Where is mentioned https://www.firmfinder.ml/ use https://professorjtj.github.io/
    7
    Hello everyone,

    I want to share my experience here.

    I posted earlier a problem on xda "Can't downgrade P40 Pro ELS-N29 C432 from 11.0.0.260 to 10.1.0.131"

    I tired many solution for several days and nothing worked!
    Then I contacted badmania98 and he gave me the right and only solution to downgrade my P40 Pro from 11.0.0.260 to EMUI 10.
    He provided me with the corresponding links and gave me a step by step procedure, shown in pictures that are highlighted by numbers..
    " 1. Press this 2. insert that 3. etc... " and then he doubled check my work before I proceeded in Hisuite Proxy to make sure that the filled info about base, Cust, Preload and the software are 100% accurate.
    I was able to downgrade my P40 Pro to EMUI 10 😁

    Now here's the best part: He gave a private service and installed GSM on my phone using TeamViewer. He used his own files to install GSM on my phone... This service allowed me to have Google Push notifications working on my phone without disabling the Google Play Store 😁
    Google service is working, maps, push notifications, everything related to Google is working now as if this phone originally had Google Pre-Installed in it 😁

    It was a great service!

    Thank you so much
    5
    Google Suite Install/Errors etc. ( Play store, Google Play Services, Google Account, etc.)

    IF YOU HAVE GMS ERRORS
    DO NOT RESET THE PHONE TO FACTORY SETTINGS AND DO NOT MAKE EMUI DOWNGRADE

    1. Play store error
    a. It can be opened but cannot be used

    If you receive just this message try Clear Cache of Google Play Store + Force stop, then start Store again. Do not clear data.

    Screenshot_20211013_113641_com.android.vending.jpg

    b. 20211113 Errors: If the previous doesn't work try this (read below first).
    1. V1 - EloYGomeZTv
    2. V2 - Renz Dagz TV ,
    3. V3 -System Hacks
    4. V4 - GSM Fix/ ictfix

    Many phones with GMS installed have now ( since 20211113) that error message when you open Google Apps. Many of you think that a downgrade of EMUI and a reinstall of GMS is needed. No EMUI downgrade is needed. In previous links (V1-V4) you will find 4 solutions to have a GMS working. Unfortunately they use old versions of Google Play Services. The newest version is used in V1. Some apps (Android Auto, etc.) will need a newer versions of Google Play Services than those presented in tutorials. I tried different solutions and files and I have to say that the last version of working Play Services is:
    - for MateXS: 21.15.13
    - other phones: 21.24.56
    Using a newer version will get the error.
    Also a simple clear data/force stop/update or other changes made on Google Play Services file could get future errors.

    c. The fix A.3 from here solves all this problems and solves also many incompatibilities.
    My phone has not been affected: Demo

    2. Change/add Google account/password after GMS install - files in description: Tutorial - EloYGomeZTv

    3. Googlefier on 2022 - solve step 1 error : here.

    4. I used this method to install GMS: here.
    You can use any other method. YouTube is full of them. One of them is Googlefier.

    5. A new alternative to install GMS here.. In video it is used on HarmonyOS 2.0 phone, but I think it might work on EMUI10 (that allows GMS install) too. It seems to be more simple than Googlefier and it has fixed also te year 2022 bug of Googlefier.
    4
    I have to mention that on the @MiszczOszczy44 I have installed the most advanced push notification fix (paid version). This procedure will fix push notifications and other/many incompatibilities.