Mears, 31, was a Manchester City youth product, also spent time with Olympique de Marseille in France and made a single appearance with the Jamaican national team.
"There's quite a few positions where I can play, but I am a fullback,"
Mears told the club.
"That's the position I hope to be nailing down for the season."
The Chadderton born fullback has become a figure of fun among Wanderers fans following his general ineptitude and subsequent inability to find a new club despite being a free agent for nearly two years.
He joined Wanderers in a £3m joint deal with then-Burnley teammate Chris Eagles under the watchful eye of ex-Bolton and current Houston Dynamo boss Owen Coyle. He went on to break his leg in his first training session at the club, and his career has stalled ever since.