( SOLVED ) Need to upgrade ML, but I have an old firmware. What´s the steps ?

[Dihelson]

My Canon T5i runs firmware 1.1.4 and I have ML installed. Everything is fine, unless by the fact that it shuts down live view
after 30 minutes. This is annoying. Reading some posts, I knew that there´s a new ML experiment ( Lua fixed ) which can fix that, but it needs firmware 1.1.5 ( so it seems ). I fear brick my camera. I don´t know the correct steps I need:

- Upgrade firmware first ?? ( If I do that, the current installed Magic Lantern will still work, since it is designed to an old firmware, and camera will boot ? )

- What are the correct steps on doing this upgrade, please ?

Thank you.

[Dihelson]

I Already solved - https://www.magiclantern.fm/forum/index.php?topic=23520.0