trying new sd card but can't get it to work. What am I doing wrong?

[OllieDodge86]

I bought a Saroo recently off AliExpress and it came with a micro SD card with preloaded games. It worked perfectly for about a week or two then the card randomly got corrupted and erased all the games. Word on the internet is the sd cards that come with the Saroo are poor quality and that I should by one from a reputable brand. So I did that, I bought a Samsung Evo Select 128gb, went to tpunix github and downloaded the latest firmware V6, created the root folder as SAROO, dragged all the files to where they are supposed to be, added a few games to test it out but when I insert the sd card into the Saroo and turn on the sega saturn, the right red light blinks and it boots to the sega saturn CD player screen. When I insert the old corrupted sd card the Saroo boots normally (minus being able to store games)

How do I get the Saroo to boot with the new SD card? do I need to update the firmware via the older sd card first for it recognise the card?