Aldon Smith: NO Charges Filed In Bomb Incident -- 49ers Star Will Get Stern Talking-To

Aldon Smith will NOT be hit with criminal charges for making a false bomb threat at LAX back in April ... officials tell TMZ Sports.

We broke the story ... the SF 49ers superstar was arrested for allegedly making the threat while "belligerent and uncooperative" right after a TSA screening at a security gate.

Now, the L.A. City Attorney's Office tells us they have reviewed the matter and "will not be filing criminal charges in the incident."

Instead, the City Attorney's Office says it will set a "City Attorney Office Hearing" later this month to address the matter.

FYI -- a City Attorney Office hearing "is administered by members of the City Attorney's office in lieu of a criminal filing. Involved parties are scheduled to attend and give their account of the incident. The individuals are then admonished about the applicable laws and given suggestions on how to avoid similar incidents in the future."

Translation -- Smith will get scolded by officials ... and will then be sent on his way.

If Smith does anything stupid in the future, the City Attorney's Office says it reserves the right to file charges up to one year following the incident.