Great thanks to Darek Z. from MeizuPolska.pl for preparing this tutorial, I am only translating it (with his agree).
Original thread (POLISH) can be found here - http://forum.meizupolska.pl/watek-meizu-pro-5-zmiana-id - it was created to make more easy than similar thread on 4pda (http://4pda.ru/forum/index.php?showt...#entry47352757).
So, first some theoretical basics. I found, that each Meizu Pro 5 phone has written information in it's proinfo file and discovered, that each Pro 5 region has own version:
In normal case, access to this partition in phones with locked bootloader is not available, but thanks to BusyBox v1.24.1-meefik, its cp aplet is some kind of exploit, that allows us to get there.
So, let's begin!
What we need at the begining:
0. Installed Flyme OS 5.1.3.0A (on this firmware it works 100%).
1. Working root (Logged to flyme account, settings -> security -> root).
2. Installed SuperSU by Chainfire (with root privillages) - https://play.google.com/store/apps/d...infire.supersu
3. Installed BusyBox by meefik (with root privillages) - https://play.google.com/store/apps/d...meefik.busybox
(steps 2 and 3 are very important, you must use exactly those 2 apps)
4. Installed Android Terminal Emulator (with root privillages) - https://play.google.com/store/apps/d...al.androidterm
5. Modified proinfo file (https://mega.nz/#!8ZJ01aZK!2WfKciJk1...EGua32_76hTBac). We unpack it and move .img file to our sdcard.
When all steps from 1-5 are ready, we run Android terminal and type those commands (all command we confirm with ENTER):
Everything should look similar to this: https://drive.google.com/file/d/0B9j...?usp=drive_web
After that we reboot our phone, and to make sure everything works, we open terminal again and type commands:
If we see there machine_type=M576_intl_official, than everything is fine, and we can use international firmware 
After that, we can unlock bootloader using this thread: http://forum.xda-developers.com/meiz...pro-5-t3303127
Original thread (POLISH) can be found here - http://forum.meizupolska.pl/watek-meizu-pro-5-zmiana-id - it was created to make more easy than similar thread on 4pda (http://4pda.ru/forum/index.php?showt...#entry47352757).
So, first some theoretical basics. I found, that each Meizu Pro 5 phone has written information in it's proinfo file and discovered, that each Pro 5 region has own version:
Code:
machine_type=M576_unicom_custom - U version = China Unicom (my phone) machine_type=M576_mobile_public - A version = Chinese machine_type=M576_intl_official - I/G version = International
So, let's begin!
What we need at the begining:
0. Installed Flyme OS 5.1.3.0A (on this firmware it works 100%).
1. Working root (Logged to flyme account, settings -> security -> root).
2. Installed SuperSU by Chainfire (with root privillages) - https://play.google.com/store/apps/d...infire.supersu
3. Installed BusyBox by meefik (with root privillages) - https://play.google.com/store/apps/d...meefik.busybox
(steps 2 and 3 are very important, you must use exactly those 2 apps)
4. Installed Android Terminal Emulator (with root privillages) - https://play.google.com/store/apps/d...al.androidterm
5. Modified proinfo file (https://mega.nz/#!8ZJ01aZK!2WfKciJk1...EGua32_76hTBac). We unpack it and move .img file to our sdcard.
When all steps from 1-5 are ready, we run Android terminal and type those commands (all command we confirm with ENTER):
Code:
su id dd if=/dev/block/platform/15570000.ufs/by-name/proinfo of=/sdcard/proinfo-MeizuPRO5-backup.img /system/xbin/busybox cp -f /sdcard/proinfo-MeizuPro5-M576_intl_official.img /dev/block/platform/15570000.ufs/by-name/proinfo cat /dev/block/platform/15570000.ufs/by-name/proinfo
After that we reboot our phone, and to make sure everything works, we open terminal again and type commands:
Code:
su id cat /dev/block/platform/15570000.ufs/by-name/proinfo
After that, we can unlock bootloader using this thread: http://forum.xda-developers.com/meiz...pro-5-t3303127
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