Terrell Gresham appeals the denial of his motion to withdraw his guilty plea to charges of burglary and possession of tools for the commission of a crime. He contends his court-appointed lawyer was ineffective and withdrawal is necessary to correct a manifest injustice. We affirm. The decision regarding whether a guilty plea may be withdrawn lies within the sound discretion of the trial court. Franklin v. State , 291 Ga. App. 267, 268 661 SE2d 870 2008. And when the request to withdraw a plea is based on ineffective assistance of counsel, “the defendant bears the burden of showing that, had it not been for his attorney’s deficient representation, a reasonable probability exists that he would have insisted on a trial.” Citations and punctuation omitted. Id. See also State v. Heath , 277 Ga. 337, 338 588 SE2d 738 2003 deficient performance and prejudice. The trial court is authorized to determine the credibility of witnesses at the hearing on the motion to withdraw, and the court’s factual findings will be upheld unless they are clearly erroneous. Johnson v. State , 260 Ga. App. 897, 900 2 581 SE2d 407 2003.
Here, the trial court found that the court “went to great lengths to assure that the defendant understood and admitted the factual basis of his plea, that he was satisfied with and had had adequate time to confer with his trial counsel, and that he was proceeding voluntarily.” The court expressly found that Gresham’s testimony to the contrary was not credible. Accordingly, the court concluded that Gresham “made a knowing, voluntary, and intelligent waiver of his rights and knowingly, voluntarily and intelligently entered his plea of guilty.” We find that although some aspects of trial counsel’s representation were problematic, the record and the transcript of the hearing on the motion to withdraw support the trial court’s findings.