Database Develop

when do i need an unlocked bootloader & flashing methodes

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i'm little bit confused about unlocking the bootloader on an mi5 device. I read somewhere that it's not needed if you use the updater app on the phone. i think this is only true for official rom's which came from en.miui.com it self?
can i use the updater app if i want to install the official en.miui.com 8 global rom without unlocking the bootloader?
if i want to install an xiaomi.eu rom, i will have to unlock the bootloader first?
does root on an official rom need an unlocked bootloader too?
there are more then one way to flash an rom on an mi5 device, updater app, fastboot and miflash tool, twrp(which is not preinstalled i mean?). but i read something about an edl mode, but cant find out what this does mean? is this maybe the fastboot and miflash tool mode?
many thanks!
best regards
adnan

Hello there,
what ROM are you running currently? Broadly speaking, you have 2 tools to change the ROM on Your device: the updater app and Fastboot (miflash uses fastboot too, and twrp requires fastboot to be installed). The updater app allows you only to upgrade your current ROM to the newest version. Fastboot (and the related tools) allow you to change ROM completely (e.g. switching from China Stable to China Dev or from China Stable to Global Stable or from China Stable to miui.eu Stable), and will also allow you to root your device through TWRP. To use fastboot, however, you will need to unlock Your bootloader.
Regarding EDL mode, it is the Miui stock recovery mode, which can be used together with the Xiaomi desktop application to flash new ROMs. It is not a widely used method, because the desktop app is quite buggy.

hello
many thanks for your replay.. i'm currently on miui 8, the global alpha version, so i already do an flash.. your answer is toop, again thanks for that!! but there are some new questions, edl is the miui stock recovery mode, does this mean the recovery as i know it already in a form from recovery.img? if i also want root i will have to flash twrp, this would then mean that the miui stock recovery (edl) wouldn't work anymore? so if i want to go back to an official global rom, do i need to flash the stock miui recovery first? the way to do that would be through fastboot? where can i get the stock miui recovery?
have an nice day!

Problem installing MIUI9 from JDCTeam ROM

Hello.
This morning I tried to install the development ROM of miui9 from JDCTeam's and it don't start. I did a wipe and installed the MIUI dev rom directly after wiping. Now it displays the MI rom and doesn't not pass from that.
What should I do in order to install the ROM correctly?

are you installing MIUI rom from fastboot?
i think (i read it somewhere here or xiaomi.eu forum) if you want to comeback to MIUI you must flash it via fastboot

Can I just flash official stable .zip on aosp rom?

Hello!
I want to go back to MIUI on my Santoni (Redmi 4X). Currently I have AospExtended ROM and TWRP recovery. Can I just flash official stable .zip from Xiaomi website through TWRP? (miui_HM4XGlobal_V9.2.5.0.NAMMIEK_c6f74c37a1_7.1.zip)
Also AFAIR my phone was originally on Chinese/English software, so this Chinese/Global ROMs are universal or not?
Many thanks in advance!

Yes You can flash MIUI ROM via Recovery method.
Wipe data+dalvik+cache+system
Flash Your ROM Zip
Flash Lazy flasher(needed if flashing MIUI ROM)
Clear dalvik & cache again
Reboot to system
Wait for 5min Atleast at MiLOGO

how to flash this ROM

https://sourceforge.net/projects/xiaomisirius/files/test-rom/
how to flash this, I tried several method, such as flash latest eu stable rom first then clean flash, none of those works, I really want PE Q

I think you must have miui developer rom not stable installed

I also tried, didn't work either @olinen
Tried 9.3.28 and latest developer version 9.11.14, both would boot to fastboot or bootloop

How flash TWRP on Merlin 11.0.5 locked BL

I try flash engineer ROM then flash 12.0.5 but always get "system has been destroyed", try on 11.0.5 and same problem
no, I flashed 11.0.5 and worked but how flash TWRP?

Just flash the FULL stock miui.

I flashed and booted ok i need to flash a custom ROM but after flash recovery get again system has been destroyed

If you want to use any other rom than official stock miui, you need to unlock bootloader first.