Tex. R. App. P. 38.8

As amended through February 20, 2024
Rule 38.8 - Failure of Appellant to File Brief
(a)Civil Cases. If an appellant fails to timely file a brief, the appellate court may:
(1) dismiss the appeal for want of prosecution, unless the appellant reasonably explains the failure and the appellee is not significantly injured by the appellant's failure to timely file a brief;
(2) decline to dismiss the appeal and give further direction to the case as it considers proper; or
(3) if an appellee's brief is filed, the court may regard that brief as correctly presenting the case and may affirm the trial court's judgment upon that brief without examining the record.
(b)Criminal Cases.
(1) Effect. An appellant's failure to timely file a brief does not authorize either dismissal of the appeal or, except as provided in (4), consideration of the appeal without briefs.
(2) Notice. If the appellant's brief is not timely filed, the appellate clerk must notify counsel for the parties and the trial court of that fact. If the appellate court does not receive a satisfactory response within ten days, the court must order the trial court to immediately conduct a hearing to determine whether the appellant desires to prosecute his appeal, whether the appellant is indigent, or, if not indigent, whether retained counsel has abandoned the appeal, and to make appropriate findings and recommendations.
(3) Hearing. In accordance with (2), the trial court must conduct any necessary hearings, make appropriate findings and recommendations, and have a record of the proceedings prepared, which record - including any order and findings - must be sent to the appellate court.
(4) Appellate Court Action. Based on the trial court's record, the appellate court may act appropriately to ensure that the appellant's rights are protected, including initiating contempt proceedings against appellant's counsel. If the trial court has found that the appellant no longer desires to prosecute the appeal, or that the appellant is not indigent but has not made the necessary arrangements for filing a brief, the appellate court may consider the appeal without briefs, as justice may require.

Tex. R. App. P. 38.8