[ALE-L21] Software install failed when I want to install EMUI 3.1 as dload

Hello everyone!
I am newbie there so If I did something wrong then I am sorry.
I have a big problem so I so need your help (in sos?).
I am trying install back EMUI 3.1 cause 3.1 was faster and power saver than 4.0.3 so I would to install back 3.1.
I found a zip file which is contain update.app. It has been downloaded from huawei's site (c1.huawei.com). So maybe it is an offical package

I am trying install EMUI 3.1 since yesterday.. But I always got an error (Software install failed). If I install an rollback android 6 to 5 then my recovery is dies. I did everything I saw on xda and other forums.. My phone is unrooted, bootloader is unlocked everything.. I so need EMUI 3.1. Please a helpful person.


Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by tyler.ledner
4 hours ago
Last post by hayden47
24 minutes ago
Last post by deckow.albertha
2 hours ago
Last post by neha.price
2 hours ago
Last post by elsa91
2 hours ago
Last post by lori94
1 hour ago
Last post by mccullough.sheridan
3 hours ago
Last post by emily37
1 hour ago
Last post by shanelle89
4 hours ago