Can't downgrade P40 Pro ELS-N29 C432 from 11.0.0.260 to 10.1.0.131

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bt10

Senior Member
Aug 17, 2013
77
21
Hello everyone,

I already used ProfessorJTJ method a few months ago and I downgraded my P40 Pro to 10.1.0.13 and it worked perfectly.

For some reasons, I did a reset and I'm trying to do the same steps but it's not working anymore!

Using HISuite.Proxy, I downloaded and installed the correct EMUI 10 rom for my phone in Hisuite, my phone rebooted and started to verify the update and it stopped at 4% and failed "Software install failed"

I tried different Hisuite versions (11.0.0.510 & 10.1.0.510) and different roms (10.1.0.131 & 10.1.0.176) but it still failing to downgrade...

Is there anyone facing the same problem recently? Is there any solution for this? Or is there a solution to get push notification on the phone?

This is my phone details:
Base Software: ELS-LGRP4-OVS 11.0.0.260
Cust Software: ELS-N29-CUST 11.0.0.3(C432)
Preload Software: ELS-N29-PRELOAD 11.0.0.3(C432R5)

Attached is the error message that I always receive.
 

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badmania98

Senior Member
Sep 23, 2007
1,977
666
52
ROMANIA
Huawei P40 Pro
You are the first one with P40 Pro in this situation. EMUI 11.0.0.260 is guilty. Huawei made all this new firmware versions for (as I know) P40 Pro, P40 Pro+ and Mate 30 Pro without downgrade possibilities.
Do you still have GMS installed? If you already made reset to factory settings...it is not good.
 
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bt10

Senior Member
Aug 17, 2013
77
21
You are the first one with P40 Pro in this situation. EMUI 11.0.0.260 is guilty. Huawei made all this new firmware versions for (as I know) P40 Pro, P40 Pro+ and Mate 30 Pro without downgrade possibilities.
Do you still have GMS installed? If you already made reset to factory settings...it is not good.
Yeah, sadly I did a hard reset and the GMS is gone...
 

thewall1976

Senior Member
Oct 4, 2011
70
1
ancona
hello guys I write from Italy I also the same problem I can not go back to the 131 gives me an error.
if we try to donwgrande to a minor version of 11 ..... 260 and then go to 10.131.
 

Likeandry68

Member
Jan 22, 2022
9
0
MOD EDIT: ENGLISH TRANSLATION ADDED

good morning everyone I bought this Beautiful Phone from a friend of mine and I have a problem with the Downgrade with Huawei p40 pro ELS-N29 C432R6 I have already done a downgrade installed GMS everything is working perfectly then I did A Factory Reset because it was a bit jerky also I had applied to be a developer for the Emui 12 beta
then I did the procedure as always and from here on I was no longer able to downgrade, currently remaining the version V.11.0.0.260 I tried Varie Gude with Hisuite Proxy both with HiSuite_11.0.0.510_OVE and with HiSuite_10.1.0.550 nothing is wrong after having done the whole procedure once finished when the phone restarts it comes out that it is installing the Firmware but at 4% it freezes and the message appears as in the figure
I tried to see on the FASTBOOT and "PHONE Locker" comes out can you help me understand what I have to do To say that the phone works perfectly even with the two SIMs
when I go to Erecovery it finds me and installs only the new version 12 .0.0.218 that I have already installed BUT THEN RETURNED ON THE PREVIOUS version V.11.0.0.260 STAYING HERE BLOCKED THROUGH Hisuit
--------------------------------------------
buongiorno a tutti ho comprato questo Bellissimo Telefono da un mio amico ed ho un problema con il Downgrade con Huawei p40 pro ELS-N29 C432R6 ho fatto gia un downgrade istallato GMS funzionando tutto perfettamente poi ho fatto Un Factory Reset perchè andava un po a scatti inoltre avevo fatto richiesta di essere sviluppatore per la Versione beta Emui 12
poi Ho Fatto la procedura come sempre e da qui in poi non sono riuscito più ad fare il downgrade rimanendo attualmente la versione V.11.0.0.260 Ho Provato Varie Gude con Hisuite Proxy sia con HiSuite_11.0.0.510_OVE che con HiSuite_10.1.0.550 niente non va dopo aver fatto tutta la procedura una volta finito quando il telefono si riavvia mi esce che sta istallando il Firmware ma al 4% si blocca ed esce il messaggio come in figura
ho provato a vedere sul FASTBOOT e mi Esce " PHONE Locker " potete aiutarmi a capire cosa devo fare Da Dire che il telefono funziona perfettamente anche con le due SIM
quando Vado Su Erecovery mi trova e fa istallare solo la nuova versione 12 .0.0.218 che ho gia istallato MA POI RITORNATO SULLA PRECEDENTE versione V.11.0.0.260 RIMANENDO QUI BLOVCCATA TRAMITE Hisuit

 

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badmania98

Senior Member
Sep 23, 2007
1,977
666
52
ROMANIA
Huawei P40 Pro
buongiorno a tutti ho comprato questo Bellissimo Telefono da un mio amico ed ho un problema con il Downgrade con Huawei p40 pro ELS-N29 C432R6 ho fatto gia un downgrade istallato GMS funzionando tutto perfettamente poi ho fatto Un Factory Reset perchè andava un po a scatti inoltre avevo fatto richiesta di essere sviluppatore per la Versione beta Emui 12
poi Ho Fatto la procedura come sempre e da qui in poi non sono riuscito più ad fare il downgrade rimanendo attualmente la versione V.11.0.0.260 Ho Provato Varie Gude con Hisuite Proxy sia con HiSuite_11.0.0.510_OVE che con HiSuite_10.1.0.550 niente non va dopo aver fatto tutta la procedura una volta finito quando il telefono si riavvia mi esce che sta istallando il Firmware ma al 4% si blocca ed esce il messaggio come in figura
ho provato a vedere sul FASTBOOT e mi Esce " PHONE Locker " potete aiutarmi a capire cosa devo fare Da Dire che il telefono funziona perfettamente anche con le due SIM
quando Vado Su Erecovery mi trova e fa istallare solo la nuova versione 12 .0.0.218 che ho gia istallato MA POI RITORNATO SULLA PRECEDENTE versione V.11.0.0.260 RIMANENDO QUI BLOVCCATA TRAMITE Hisuit

English language only.

Solution: Read no. 0 here.
 
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