Eject and insert into the Vita, then try formatting via VitaDeploy. 4. Rebuild Database & YAMT Settings Sometimes the system's database is corrupted. Turn off the Vita completely. Hold to enter Safe Mode. Select Rebuild Database .
Sony silently patches formatting routines. An outdated firmware may not recognize the card’s geometry: format failed c1-2755-9
adapter. This error usually points to a hardware connection problem or an improperly prepared microSD card . Eject and insert into the Vita, then try