Can a defendant bring a motion to challenge the validity of his guilty plea?

Appointed appellate counsel filed an appellate brief requesting this court review the record for any error as required by People v. Wende (1979) 25 Cal.3d 436. This court permitted defendant the opportunity to file a supplemental brief. We have received no response.

Absent a certificate of probable cause, defendant may not challenge the validity of a guilty plea. (People v. Stubbs (1998) 61 Cal.App.4th 243, 244-245; 1237.5, subd. (b).) We have reviewed the record and find no arguable issue concerning a matter that does not affect the validity of the plea. Appointed counsel has fully complied with his responsibilities and no

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