People v. Lloyd, ___ Cal.App.4th ___, ___ Cal.Rptr.3d ___, 2015 WL 1804472 (4th Dist. Apr. 21, 2015) (trial court failed to obtain knowing and intelligent waiver of rights of confrontation and silence prior to defendant's admission of prior convictions, where the last time the defendant had been advised trial rights was at arraignment almost 15 months earlier).