Justin Bieber’s BFF Lil Za smashed a jailhouse phone earning himself another charge, vandalism.

0115-lil-za-tmz-3 Lil Za was arrested for a SECOND TIME today … while STILL under arrest, and it’s all over a shattered phone … TMZ is reporting..


Sources told TMZ Za was minutes from posting bail and getting released from custody after getting busted for drug possession at Bieber’s house this morning — and then for some reason he flipped out and smashed a phone in the jailhouse.

Za is now in the process of being re-booked for vandalism.

Best of all, depending on the value of the phone … this could also be a felony — to go along with his felony drug bust.