Clean install for Global Stable Rom

[James Weinreich]

Hi guys,

I'm trying to get my head around everything, in order to get it onto a cleanly installed Global stable rom. It’s currently running an older version of Global stable rom, on a locked bootloader. I wish to make sure that the installation is totally clean, so I’ve figured that one of my best options would be to update it using the fastboot method.

As far as I can gather, this is that I should first unlock the bootloader using this guide here:
http://en.miui.com/thread-267361-1-1.html

After I’ve done that, I can update using “method 3”, the fastboot method, as described here:
http://en.miui.com/thread-307744-1-1.html

I have a few questions here, before I start the process. Any help would be appreciated:

• In order to unlock the bootloader, I gather I need to be on China Dev rom (not Global, and not China Stable). Do I simply use the updater app and run a downloaded ROM from the website to get it onto China Dev?
• Do I need to be on China Dev to even start the bootloader unlocking process? Can I leave it on what I currently have (Global stable) until I get the unlock codes?
• When I register for a Mi account and request for an unlock, does the phone number associated need to be in the Mi5 I'm unlocking? I.e., do I need to keep the sim card in the Mi5, while I wait for the unlock codes etc. Until the phone is cleanly installed, I'll be using a different phone, so the SMS codes will be received on a different handset.
• Do I need to install all the drivers, (Quallcomm etc.), noted in this guide here? http://en.miui.com/thread-299790-1-1.html The other guide above only specifically mentions to install the Mi Flash Tool.
• Lastly, am I going about this the right way, or is there perhaps an easier way of doing things to get a clean install? Note, I don't have access to a deep flash cable.

Thanks in advance.

 

[Nautilus174]

Hello,
Will try to answer some of your questions based on my experience.
I unlocked the bootloader from global stable rom. It is possible to do that from global and china rom. No need to change roms and definitely not needed to be on developer roms. I am not sure if it works on eu rom as it is unofficial.
You need to apply for phone unlock over xiaomi webpage while you are logged in to your xiaomi account. If you havent created a Xiaomi account it might be easier to make one over the phone as it uses your phone number and connects it all to your account.
Then log in on your pc and apply for the bootloader unlock. It takes about 10 days for them to process your request and i didn't even receive the sms that i can unlock my phone. After about 15 days have passed since i applied i just went along the instructions on the xiaomi unlock webpage and just unlocked it with some xiaomi pc application.
It was a fairly straightforward experience. I can't remember was it mi flash or it was something specifically for unlocking the bootloader, anyway it is on the xiaomi unlock webpage and on miui forum.

After you are through the process you can go to developer options in settings and look for mi unlock status it should say unlocked if you are successful. (if you haven't switched the developers options on already tap 6-7 times on the miui version in about phone and the developers options menu will appear in additional settings menu)