Installing without Ubports-installer

Ub

Hello everyone,

I would like to know how to flash UT on a device without using Ubports. I already have the boot and recovery images (that I got with Ubports after porting to another device with the same model).

Is it enough if I just flash these images (with fastboot flash boot boot.img and fastboot flash recovery recovery.img) ? after unlocking the phone and installing TWRP of course.

Or do I need to do something else to have a working OS on the phone? Ubports-installer seems to do a lot of things when installing, I'm not sure if that's okay to simply flash the boot and recovery.

Moem

First of all, for the sake of clarity, let's get the terms straight.

Flashing means installing.
Porting means creating the files for installation. If a device has been ported, that means there is a version of UT for it. If it has not, it cannot be flashed; someone needs to make a port first. Otherwise, there is nothing to install/flash.

Your question as I understand it is about flashing, not porting.

Keneda

@ub Hi.

As said @moem you seems to want to install, not to port, so tell us what is your device name so that we can help you further, and move this topic in the right device subforum.

Also, why don't you want to use ubports installer ?

kugiigi

Each device has its own steps on flashing which the installer tries to do for you. You'll have to check for your device. But yeah, the question is why if the installer supports your device?

Lakotaubp

There is issome cases a manual way to flash UT (the OS) to a device if as @moem says a port (version of the OS for that device) already exists. I am not familier with it other than knowing it is not recommended and if the files are flashed in the wrong order you can get a brick!!. That is whyn there is the installer. Also as @Keneda more info is needed about the device first.

Ub

I want to flash indeed, for the nexus 5 hammerhead. I want to better understand UT and the process of installing, that's why I like doing things myself. And Ubports needs to download many files when installing, then it would save me time to manually flash UT since I already have the files (images), especially if I want to do the operation several times or on several devices (considering that Ubports is installed on another PC or the cache is cleaned for some reason).
I also like being able to do the stuff without internet connection.

But there is a risk of getting the device bricked, that's why I need to be sure first.