SFLB121S02-A2-ADV is covered by this 359 KB PDF datasheet, the ADV variant of the SFLB121S02 display set with A2 seemingly indicating a version.

PDF datasheet, 357 KB, for SFLB121S02-A2-VGA, a VGA-input variant of a display set built on the SFLB121S02 panel code, with A2 apparently marking a version or revision.