hi guys.. i just bought a 7.8mm 7pin tubular lock pick, I'm pretty sure the tubular lock im picking is a 7 pin lock.... but.. I CAN'T DO IT!

.... There's a letter on the tubular lock.. it looks like a 'G'... or 'G1'.... whats that?
I watched alot of youtube videos about the steps of using a tubular lock pick... and i followed the steps.. it doesnt work..
Can anyone help me?

i need to fix the jammed coinslide.. im the one made the coin slider jammed.. i don wan my landlord to find it out. please....