The attorney appointed to represent Dang Hai Nguyen has moved for leave to withdraw and has filed a brief in accordance with Anders v. California, 386 U.S. 738, 87 S.Ct. 1396, 18 L.Ed.2d 493 (1967), and United States v. Flores, 632 F.3d 229 (5th Cir. 2011). Nguyen has filed a response. The record is not sufficiently developed to allow us to make a fair evaluation of Nguyen’s claim of ineffective assistance of counsel; we therefore decline to consider the claim without prejudice to collateral review. See United States v. Isgar, 739 F.3d 829, 841 (5th Cir. 2014). The motion for appointment of substitute counsel is DENIED as untimely. See United States v. Wagner, 158 F.3d 901, 902-03 (5th Cir. 1998).

We have reviewed counsel’s brief and the relevant portions of the record reflected therein, as well as Nguyen’s response. We concur with counsel’s assessment that the appeal presents no nonfrivolous issue for appellate review. Accordingly, the motion for leave to withdraw is GRANTED, counsel is excused from further responsibilities herein, and the APPEAL IS DISMISSED. See 5th Cir. R. 42.2.