Transfer saves between CFW Miyoo 1.3.3 to 2.0 beta 2

i made a backup of my old cfw (1.3.3) but now that i updated my v90 to the 2.0 the gba emulators aren't able to read my saves? i tried converting one save from .sav to .srm but it didn't work, can someone please help me? the saves and the roms are in: Miyoo Handheld\main\roms\GBA