[SOLVED] How to Remove the front panel of the Gigabyte 5115 sumo case?

[UNR34L]

Hi,
I decide to get a new build and dust out one of my old cases, Gigabyte 5115 sumo.
The intake fan makes a loud noise and I think it's about to die (am not surprised after it being abandoned for roughly 5 years).
I tried to replace it, however, I could not do that even after I did the six latches (3 at each side) as there is something that seems to keep it stuck in the middle. When I apply a little bit of force the front panel start bend so I decide to play it safe and look around for a guide, as this is a very old case and I doubt there is a fix if anything got broken, but no luck...
Anyone having an idea of how to remove the front panel?

 

[UNR34L]

after I take another look, I forget to remove the optical drive and that was the reason why I could not remove the front panel unless I remove it.
Silly me.
hopefully, this will help someone.