This question has been addressed in 1 Texas court opinion:
COA13 — February 23, 2026
Michael Anthony Mayes filed a pro se pleading seeking jail time credit and other relief, which the Thirteenth Court of Appeals construed as a petition for writ of mandamus. The relator failed to provide any supporting documentation, legal authority, or citations to a record. Applying Texas Rules of Appellate Procedure 52.3 and 52.7, the court emphasized that the relator bears the absolute burden of providing a record sufficient to establish a right to relief. Because the petition lacked the necessary certified documents and transcripts, the court held it could not reach the merits of the case and denied the petition.
Litigation Takeaway
“A mandamus petition is "dead on arrival" without a meticulously prepared record; even an egregious trial court error will not be reviewed if the relator fails to include the certified orders, material exhibits, and authenticated transcripts required by the appellate rules.”