Kbox mini 50 watt Can't get to the circuitry Can you help ?

[nor]

Trying to dismantle a kbox mini to refinish the exterior but can't see it.
Removed the only screw visible holding the plastic panel in place but its still being held by something.
If you have ever dismantled a Kbox mini or know of any videos on how to please help me out.
Thanks, Nor.

 

[RJ-Kloudburg]

Trying to dismantle a kbox mini to refinish the exterior but can't see it.
Removed the only screw visible holding the plastic panel in place but its still being held by something.
If you have ever dismantled a Kbox mini or know of any videos on how to please help me out.
Thanks, Nor.

You will see a little sticker caddy-corner from the screw you have removed, poke your Phillip's screw driver through that sticker and remove the second screw, be careful when removing the inside case there's a spring on the negative side,top, with a cover, you don't want to lose that spring...Goodluck