[Huawei P20 Questions & Answers] :
Hello Guys,

i had bought an Huawei P20 about an year ago. Now you know with all of this "USA-Huawei" Trouble going on, the thought came to my mind that i better start unlocking bootloader and be prepared to flash custom rom if worst come to worst. so far, so good.

now i started looking around if there is an easy method of getting the bootloader unlocked. but oh my, the huawei company is very friendly to us users and say "no, you wont get any unlock code from us anymore". so screw that.

now i want to try some experimental stuff. it looks like this:

my Smartphone has currently the version EML-L29 8.1.0.168(C432). I bought some Credits (i think it is that thing for $4) from DC-Unlocker. Yeah yeah i know, there they say "no support for Huawei P20!!!". But i still want to try. Well i tried, but it doesnt work - what you should expect.

now i read from some other website that there is another way of unlocking it. i only read it diagonal but the one thing i read was the information "unlocking bootloader is only possible till firmware version june 2018". so i jumped to an maaybe interesting conclusion about unlocking the phone with DC-Unlocker or HCU (whatever, i guess maybe both use the same method anyway).

if i do an rollback to the old firmware version *before* June 2018 on the device, wouldnt it be possible to do the unlock? Because the security patches that preventing it unlocked arent on the device then.

So what i have done so far is loading the old firmware version 8.1.0.128(C432). But the source is saying that it is coming from "Asia" but in the next line it reads "Asia, Europe" etc. - do they mean that this version is universal or do i run in trouble if i install one that is having the wrong area?

the next thing that kinda baffles me... all guides are sayin "copy the extracted dload folder to your sd-card". even the p20 guides do that. but.. well you know, the p20 device doesnt even have sd-card support. so how are you intended to use it then? i wonder about that a bit.

i dont think that without unlocked bootloader, flashing an original OTA full update would be impossible. but im not really sure how. there is this shady menu you can reach if you call this strange numbercode. but im very unsure if that will really work out. the phone (it is still a phone without SD-Card-Support) even has the option "apply update from sd-card". so im wondering how this feature they implemented in the original software is intended to use at all. maybe i should push the dload folder on the internal storage? i dunno.

i read about another possibilty of flashing stock roms. they say you can do it per adb command. so no problems would be here, i have adb and the hisuite and all already set. but i have absolutely no idea if that is possible without unlocked bootloader. so the questions arose from my mind are those:

- does an stock rom image from possibly/maybe asia would do any harm to my device like it is getting unbootable or anything like that?

- is it possible to flash an image older android stock rom with methods like this special menu on the device or the adb load?

- do you all think that my plan of downgrading the phone in order to get the bootloader code would work?

i'm looking very forward to your answers :))