yashsingh1/xdaforums huggingface dataset:
[Huawei P40 Pro Guides, News, & Discussion] rob199418:
Hello

I have a problem with Mate 30 Pro downgrade. I used the latest hi suite to 1st downgrade to Emui 11...230. Now every time when I want downgrade to emui 10.1 I have an error on my phone - Install failed. In hi suite proces has been executed successfully. I don't know where is the problem. Few months ago I downgraded my P40 Pro and process worked well.

Does anyone have a similar problem? Anyone know how to fix this?

I used hi suite 10.550 and hiproxy 2.4
[Huawei P40 Pro Guides, News, & Discussion] silentscreamer:
Problem is :
[Huawei P40 Pro Guides, News, & Discussion] espilya:
Use ELS-N29
[Huawei P40 Pro Guides, News, & Discussion] espilya:
Btw, what method or tutorial are you using to install all gms services, apps, etc in .131 / .121?
[Huawei P40 Pro Guides, News, & Discussion] brownboy1289:
@badmania98 what is the latest security patch level that you're on?
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
My P40 Pro is not in the spot.
[Huawei P40 Pro Guides, News, & Discussion] brownboy1289:
Sorry I did not understand? My mate 30 pro was last updated to november 2023 but my p40 pro is only till 2022 november is it simply not updated anymore?
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
I don’t daily use P40 Pro . Right now it is somewhere in a box from dozen boxes
[Huawei P40 Pro Guides, News, & Discussion] Zodiac87:
Help please, after downgrade 10.1.0.176

p40 pro won't connect to pc or otg

only charge

P.S. usb debugging - on
[Huawei P40 Pro Guides, News, & Discussion] huggenknubbel:
maybe someone can help me out there.

have a P40 Lite and want to downgrade with hisuite10

actual firmware installed is:

base Software Version	JNY-LGRP2-OVS 10.1.0.1
Cust Software Version	JNY-L21-CUST 10.1.0.1(C432)
PRELOAD-SOFTWARE VERSION	JNY-L21-PRELOAD 10.0.1.1 (C432R2)

what i tried to install:

base Software Version	JNY-LGRP2-OVS 10.0.1.136	374646
Cust Software Version	JNY-L21-CUST 10.0.1.2(C432)	374648
PRELOAD-SOFTWARE VERSION	JNY-L21-PRELOAD 10.0.1.1(C432R2)	375038

i use HiSuite 10.0.1.100_OVE

HISuite Proxy looks like:

View attachment 6079813

and didn't set the time back to 2023, the downloads works fine.

But while "veryfy" the update i got: Software install failed"

Is someone knowing what i'm doing wrong here?
[Huawei P40 Pro Guides, News, & Discussion] maxi.musterfrau:
Hi everyone,

I faced the similar issue as others when I tryed to downgrade my Huawei P40 Pro to 10.1.0.131. It appears that the phone itself is blocking any firmware below 10.1.0.154 with the message during flashing: "Software install failed!"

1. I downgraded with the newest HiSuite 14.0.0.310_OVE to 11.0.0.260

2. I used HiSuite 10.1.0.550 + HiSuite Proxy 2.4.0.0 to achieve 10.1.0.176 and also 10.1.0.154 (with matching firmware via FirmFinder v2)

Anything below is already labeled “Not Approved” via HiSuite Proxy Check Rom Status and end up with a “waste of time” info via HiSuite Proxy and “Software install fail!” via phone itself.

Additionally, dload is no option, because my phone does not get any USB drive connected. Docking stations and display connectors are still working at the USB port.

My current assumption is that the firmware loader inside the phone is somehow restricting everything below 10.1.0.154, which correlates very well with the required firmware below 10.1.0.150 of googlefier.

--> Any potential fix for us?

One side note: I was not able to use dload with the firmware packages provided by FirmFinder. It appears that there is at least a difference for the name:

Dload uses "update_sd_base.zip". HiSuite/FirmFinder provides "update_full_base.zip".

--> What is the difference and how can I convert FirmFinder files into usable dload files?

Thanks everyone,

Maxi
[Huawei P40 Pro Guides, News, & Discussion] Albert'-':
@badmania98 bro i downgraded to emui 10 167 firmware installed latest gms [My own fix for latest play services] and i hit update on phone and i get to 243 and im stuck there can t upgrade it say is up to date no usb and when i tried your hisuite it say failed to update after download on 1%firmware update phone don t even restart any help ?
[Huawei P40 Pro Guides, News, & Discussion] Albert'-':
i don t want to use dload because it will erase everything
[Huawei P40 Pro Guides, News, & Discussion] Peedrinker22:
@badmania98

huawei nova 7i (p40 lite) downgrade to EMUI 10 for gms support. i cannot seem to find the correct ROMS

JNY-L21

c185R6

Kirin 810

im on EMUI 12.0.0.220

if rebranding cpu for gms works im open to that option

im open to any option i just want gms on my phone.

help much appreciated brother 🙏
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
I am out of order this month
[Huawei P40 Pro Guides, News, & Discussion] Albert'-':
great guys anyone who want fix for their gms i can help for free it permanent fix all apps works dm me don t pay for someting you can get for free
[Huawei P40 Pro Guides, News, & Discussion] Albert'-':
nu device is not play protect error or other ****
[Huawei P40 Pro Guides, News, & Discussion] Peedrinker22:
please man only this time
[Huawei P40 Pro Guides, News, & Discussion] TCD28:
Just search in Google you're model number and dload (like this ART-L29 dload) and make sure the country matches yours, go to update and then when you see ther version number there should be something like this (C185E2R3P1) make sure it matches with the dload. (Note some dload files just mention R1-3 only make sure it matches and if the dload files include a Cust and preload remove them you only need the base.)
[Huawei P40 Pro Guides, News, & Discussion] TCD28:
Also, I just found a new way of getting rid of GM's errors and updating it's similar to the GSF freeze method but instead we keep it's data and install a modified version, currently I am feeling lazy so I won't be posting anything on it.
[Huawei P40 Pro Guides, News, & Discussion] TCD28:
Here are some pictures
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Stolen file and slightly modified ( the icon only).Please don’t post that here ( delete them). It is against the forum rule. Thanks.

The original is presented on the first page as a method, and it is not for free.
[Huawei P40 Pro Guides, News, & Discussion] TuXEKRO:
1. Has anyone tested this firmware? For pro40 europe.

ELS-NX9 (C432) [ELS-N29_hw_eu_R4] [LZPlay, GMS, GoogleFier Possible] Huawei Official Firmware [Stock, dload] [DownloadGSM.com] [DG]

404 Error - Page Not Found! | Download GSM

downloadgsm.com

It says it is compatible or comes already with google services.

2. What is Cust and Preload? I have searched for information but I have not found it or I am very saturated of reading so much xd.

Does it have to match the base version? The three files must be in some specific versions, or are they free?

Thanks! And I'm currently on version 10.1.0.121 (C432E8R5P2) thanks to dLoad but without usb working.

PS. Have a good vacation @badmania98 thanks for all the time you have invested in helping and grouping most of the information in this thread <3.
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
I am working to my new apartment .

See update message in first page of the thread. First point (with chart) and there is a link. After you follow the link see in that new message the last point and attached apps.
[Huawei P40 Pro Guides, News, & Discussion] It'sJust Me:
Hello

I followed this guide and it worked perfectly got to 10.1.0.121.

Now I would like to ask if anyone used harmony tp cable successfully? Created one using three resistors(150, 270 and 1.5k Ohm). Connected first to phone tyhe pc after a while it asked what do I want to do. Selected file transfer, but it didn't ask for usb debugging, adb devices detected nothing, free chimera version detected nothing and windows devices shows error.

I made tripple sure that the cable is wired correctly.
[Huawei P40 Pro Guides, News, & Discussion] Albert'-':
hello guys does anybody have this dload?

JNY-LX1 10.1.0.226(C432) [JNY-L21_hw_eu_R6] Huawei Official Firmware [Stock, dload] [DG] i only found it in download GSM but i need premium membership ..​
[Huawei P40 Pro Guides, News, & Discussion] rob199418:
Hi

I have exacly the same problem with Mate 30 Pro c432. I bought Harmony TP cable on Aliexpress and USB connection is not problem. I tried few combinations and nothing worked. Every try there is an "firmware not approved" error. Did you found something interesting?
[Huawei P40 Pro Guides, News, & Discussion] cj_clonik:
Hello,

I wanted to ask if the manual from the second post should still work?

When trying to move from EMUI 12 to EMUI11.0.0.2xx, an update error appears.
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
I have just reinstalled GMS after downgrade, using

Solutions before Before May 2023.

It works on my phone (P40 Pro C432)

But read carefully .
[Huawei P40 Pro Guides, News, & Discussion] 911-Future_Maker:
After some trial and error and few tries I successfully installed gms on P40 Lite and even my play services is 24.x without error messages for now. I downgrade as follows :

EMUI 12 to EMUI 10.1.0.399 via HiSuite official

EMUI 10.1.0.399 to 10.1.0.353 via dload

EMUI 10.1.0.353 to EMUI 10.0.1.136 via HiSuite Proxy 2.4.0 and HiSuite 11.0.0.530
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
For Ilham solution contact me on PM.
[Huawei P40 Pro Guides, News, & Discussion] laruku43420:
Hello everyone! Need some help here... I have a P40 pro (ELS-NX9) in Europe (C432) and I cannot find the firmware that I can downgrade to 10.1.0.131 to complete Googlefier. I am on 11.0.0.151 right now.

I have read and watched a number of videos and posts, but on Firmfinder there is no firmware for ELS-NX9, only ELS-N29 . I followed ICTFIX procedures and use the pack they provided for N29 to update from OTG but the phone did not allow me to install.

Is there any other way I can install Google? Very lost right now. Thanks
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Really confused. You need to downgrade but you tried to update? 11.0.0.151 was the higher version on your phone? Post a screenshot of About Phone.
[Huawei P40 Pro Guides, News, & Discussion] laruku43420:
Sorry it was confusing, I meant downgrade over usb-c OTG file.

Current version is 11.0.0.151 and I want to downgrade to 10.1.0.131 in order to use Googlefier.

The lowest version I can downgrade from hisuite was 10.1.0.176 which failed to install GMS using Googlefier

Therefore I tried to downgrade via OTG as described by ICTfix (and I used their firmware file on their website) but it says the pack was not correct maybe because their version was for ELS-N29. The other downloadable firmwares I can find in internet are also all for ELS-N29 but not ELS-NX9.

What is now the best way I can install GMS? Thanks

Attached screenshot.
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Downgrade first to 10.1.0.176 using HiSuite. After that:

You can/I suggest you to use this version with dload method (OTG).

I have the same phone.

Google Drive - Virus scan warning

drive.google.com

More than that, after you install the GMS stay on that 10.1.0.121. I am on this version too.
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Disable the software update app (EMUI update)

One solution to disable the software update is to disable the update program.

For this I use the ADB AppControl application, which is currently up to version 1.7.1.

The application should be downloaded and installed on the PC from this address:

ADB AppControl

Official website of the ADB AppControl application. Free Download. Latest release. The ultimate applications manager and debloat tool for Android devices.

adbappcontrol.com

In the bellow pictures: Actualizare software = Software update (search for Software Update or how it is written in your system language)

View attachment 5472315View attachment 5472317View attachment 5472319View attachment 5472321View attachment 5472323View attachment 5472325View attachment 5472327

Re-enable the software update app

View attachment 5472329View attachment 5472331

Thanks for ADB AppControl application to: @Cyber.Cat

https://xdaforums.com/t/tool-adb-appcontrol-1-7-1-ultimate-app-manager-debloat-tool-tweaks.4147837/
[Huawei P40 Pro Guides, News, & Discussion] jeanbk:
(question)

after successful to install the GMS and work all the apps, I can update to the last rom via OTA?
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Yes, you can. It is possible to have play protect errors after Emui upgrade. You can try to fix them using tutorials from first page of this thread.
[Huawei P40 Pro Guides, News, & Discussion] genseric:
Hello,

i am stuck with

Base : ELS-LGRP6-OVS 11.0.0.198

Cust : ELS-N39-CUST 11.0.0.2(C185)

Preload : ELS-N39-PRELOAD 11.0.0.3 (C185R1)

can't downgrade to earlier 11 or 10 versions.
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Bad news. I think Huawei made some changes in last firmware of P40 series and Mate30 Series, that will block downgrade to EMUI10.(1).
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Firmware Downgrade with HiSuite proxy and Offline Packages

Thanks to: @ProfessorJTJ

In this tutorial I used firmware files for my P40 Pro C432. You have to use your firmware files according to the model and region of your phone. You have to know already how HiSuite-proxy is working.

We need to have the files on computer. Files will be downloaded during a downgrade simulation.

1. Downgrade simulation :

==================================================================

20211216 LE: now you can download the files directly from the page:

View attachment 5484521

=================================================================

Use HiSuite proxy, choose the files from https://professorjtj.github.io/ ( www.firmfinder.ml ) and start a downgrade procedure (b). Remember your files ID . You will need them later.

View attachment 5482173View attachment 5482175

In my case IDs are:

BASE: 392311

CUST: 382942

PRELOAD: 384706

Files will be downloaded by default here:

C:\user\your user name\documents\HiSuite\ROM

When the download starts, go to that location and wait to it to be done.

C:\ partition should be NTFS formatted.

When download is done and it copy the files on the phone, copy all folders on your desired location and after that stop the downgrade process.

The partition where files will be copied should be NTFS formatted.

View attachment 5482177View attachment 5482179

Now you have all the files on the computer for further downgrade.

2.Downgrade with HiSuite proxy and Offline Packages - Internet connection should be available.

In HiSuite Proxy, Offline Packages area, choose your files for BASE, CUST and PRELOAD, selecting the correspondent files from computer for each of them.

Loading of BASE and PRELOAD files will take some times. Be patient.

You have to insert the link for BASE, CUST and PRELOAD using your files ID, where XXXX will be replaced by the ID. The link is common to all firmware’s of any phone except the ID:

In my case:

BASE: http://update.dbankcdn.com/TDS/data/files/p3/s15//G5398/g1755/v392311/1/

CUST: http://update.dbankcdn.com/TDS/data/files/p3/s15/G5398/g1755/v382942/1/

PRELOAD: http://update.dbankcdn.com/TDS/data/files/p3/s15//G5398/g1755/v384706/1/

Set other settings as in following image.

Start the downgrade.

View attachment 5482181

Done.
[Huawei P40 Pro Guides, News, & Discussion] zorro4:
Thanks
[Huawei P40 Pro Guides, News, & Discussion] perdos1:
I have P40 Pro with software 11.0.0.230 C432R6. I want to downgrade to EMIUI 10.1 to install GMS. After that i want to update to current software version. I have a question about push notifications. Without any fix notifications won't work at all or only notifications from google apps like gmail or youtube will be broken?
[Huawei P40 Pro Guides, News, & Discussion] keat007:
Hello.. I'm a die hard Huawei fanboy here that's currently using Mate 20 Pro. Just got a set of Huawei P40 Pro and I'm kinda confused if doing the downgrade from my current build 11.0.0.243 (CR636) will result in loss of fast charge and data transfer. Can anybody advise?

Also, I can't seem to find the right firmware for NX9 (CR636). Anybody can advise if I should go with N29?

Thanks a lot for the help there buddies. Actually tried to use the phone without GMS but it's really not possible. Most of my company apps do not work on HMS and it's making the phone unusable and would be sad to sell a phone that I've just gotten for less than 24hrs due to this. =(
[Huawei P40 Pro Guides, News, & Discussion] perdos1:
@keat007 You should go with N29. You will lost fast charge and data transfer, but after you install GMS you can upgrade your software to get fast charging and data transfer back.
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
CR636? Are you sure? Better post here a screenshot of About Phone menu.
[Huawei P40 Pro Guides, News, & Discussion] keat007:
Ahhh!! My bad. It was C636. After reading thoroughly, I confirmed that it is N29 (as per my phone version menu). Currently doing the downgrade. Fingers crossed!
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
HOW TO flash dload FW guide (downgrade or upgrade EMUI)

Sources for dload fw:

- https://androidhost.ru/

- https://downloadgsm.com/

„USING OTG ADAPTER or OTG CABLE + USB MEMORY STICK

1. Extract dload folder from downloaded archive and copy it to the root of your memory stick / drive >=8gb (formatted as NTFS) that will be used to upgrade.

DLOAD folder contains:

- a zip file ( Example:

update_sd_base.zip

)

- a folder (example

ELS-N29_hw_eu

) with 2 zip files inside (example:

update_sd_cust_ELS-N29_hw_eu.zip

and

update_sd_preload_ELS-N29_hw_eu_R5.zip

)

I made a video here.

2. BACKUP your stuffs if you haven't done yet

3. Factory Reset your phone (optional) and POWER it OFF

4. Insert your OTG + memory stick / drive with the correct firmware on it (dload folder with all 3 zips inside)

5. Press Power button AND VOLUME + and as it vibrates and shows Huawei + Android logo WAIT FOR 5-6 seconds and release buttons, and the phone will enter in eRecovery mode. When in menu, select Update mode, then select Memory card/OTG update mode and it should start the update.

USING Huawei NM Card

1. Extract dload folder from downloaded archive above and copy it to your Huawei NM Card

2. BACKUP your stuffs if you haven't done yet

3. Factory Reset your phone (optional) and POWER it OFF

4. Press Power button AND vOLUME + and as it vibrates and shows Huawei + Android logo WAIT FOR 5-6 seconds and release buttons, and the phone will enter in eRecovery mode. When in menu, select Update mode, then select Memory card/OTG update mode and it should start the update.

OR

If you want to do it from sistem after you've made your backup and had an factory reset (optional), insert OTG + memory stick / drive OR copy dload folder with all 3 zips inside to your Huawei NM Card and dial this on dialer *#*#2846579#*#* and select 4.Software Update then 1.Memory card Upgrade . If your inserted card / memory stick or USB drive or Huawei NM Card it's recognised and contains the right files, phone will restart and start flashing the firmware. At the end when it's restarting after succesfully flashed firmware, you can remove the OTG (if you used one).

How to check for update using eRecovery:

In order to acces eRecovery (using this method in order to update WON'T wipe your phone data, it's acting like an normal OTA), follow these steps:

1. Power OFF your device

2. Press Power button AND vOLUME + and as it vibrates and shows Huawei + Android logo WAIT FOR 5-6 seconds and release buttons, and the phone will enter in eRecovery mode. When in menu, select Update mode, then select Memory card/OTG update mode and it should start the update.

3. When in menu, select Update mode, then select eRecovery mode then Update and recover system then Download update and recover. Connect it to Wi-Fi and it should start the update. If it's still the version you're atm, you can hit Cancel and then Restart. If it's a newer version than the one installed, let it download and update. At the end, it will restart to system.„

Thanks to @SilviuO
[Huawei P40 Pro Guides, News, & Discussion] Ross_L:
Thanks Daniel for your help today. I don't think I realised the potential of the phone until you installed the Ilham method on it.

I was originally using a method off of YouTube and a frozen GSF to get notifications, but this came with its own issues and a lot of functions/apps did not work. Since you fixed GMS today, everything works as it should and I am able to use apps I'd given up on - being able to use Play Store again rather than Aurora is great!

If anyone's considering whether you should go the Ilham route, then just do it. The phone feels completely different and seeing how little you pay for it, Daniel installs it for you and makes sure it's working + gives you advice on how to get the best out of it.

Thanks ever so much for your help today.
[Huawei P40 Pro Guides, News, & Discussion] mirinarx:
Is there absolutely no way to downgrade with version 11.0.0.260?

If so I need to get a different phone...
[Huawei P40 Pro Guides, News, & Discussion] rob199418:
My case Mate 30 Pro, C432 region

Lowest firmware LIO-L29 11.0.0.151(C432E6R7P4) install with hiproxy.

What if CUST and PRELOAD from EMUI 10 is not approved to install?

View attachment 6086094View attachment 6086095View attachment 6086096

Can I use CUST and PRELOAD from EMUI 11 and main firmware from EMUI 10?

View attachment 6086098View attachment 6086097View attachment 6086103

Is there anybody who try install firmware with HARMONY OS in description?

View attachment 6086091

View attachment 6086092

View attachment 6086093

Thanks in advance for all answers.
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Don’t mix emui10 and emui11 elements!!!

That 102 Harmony for C432 is EMUi. You will not find any 102 marked as EMUI on that website, but that are EMUI.
[Huawei P40 Pro Guides, News, & Discussion] rob199418:
Thanks for your answer.

Can I try update from Emui 11... 151 to eg Emui 11...230 using hi proxy?

It is possible after that there will a possibility to downgrade to Emui10?
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
1. Yes, but if you intend to downgrade you can try from 151 (HiSUite proxy + HiSuite wifi (China version)

2. You have to search and try but it is possible to cannot downgrade in this way

You can try this:

1. HiSuite Proxy 3.3.00 + HiSuite_11.0.0.650_OVE + https://professorjtj.github.io/v2/ downgrade to 11.0.0.151

2. HiSuite_11.0.0.610 wifi ( No proxy) downgrade to 10.1.0.268

3. HiSuite_11.0.0.610 wifi ( No proxy) downgrade to 10.0.0.217

That was working few months ago. I dont have the device so I dont have updated info.
[Huawei P40 Pro Guides, News, & Discussion] Radioturnu:
Salut, @badmania98! Ma poti ajuta cu o idee? Am huawei p40 pro și nu reușesc sub nicio forma sa folosesc android auto...
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Hi

1. This is an english forum. You have to write in english.

2. Yes, I can. You can try yourself reading on first page. If you cannot do it, send me a PM.
[Huawei P40 Pro Guides, News, & Discussion] Radioturnu:
Thanks! I will try all variants carefully again, then leave you a message!
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
If you already have GSM installed just let me know
[Huawei P40 Pro Guides, News, & Discussion] cj_clonik:
Hi,

I am on EMUI 11.0.0.260.

Please advise how to downgrade to a lower version?

I tried according to:

Solutions before Before May 2023:

So I downloaded what was in the manual:

LINK

In the proxy I chose to download version 10.1.0.131

Unfortunately, the dowgrade process fails.

Please help.
[Huawei P40 Pro Guides, News, & Discussion] badmania98:
Use Solution after February 2024. I modified it.

I think you have selected wrong files ( not approved for install).
[Huawei P40 Pro Guides, News, & Discussion] cj_clonik:
I used Solution after February 2024.

Unfortunately I have the same error.

Can you suggest what versions should be selected?

The country code is C432, the phone model is ELS-N29.

Below are my settings:

View attachment 6086529