Find a setup guide on YouTube and start from scratch. There's no telling what happened to that SD card when you formatted it. In the future never use a phone to do that kind of thing; use a PC so you can actually have control over what format the SD card ends up in.
Current compatibility issues as of OPL BDM 4.7 (hotfix):
SLPM_620.07 Gradius 3 & 4 - crashes on boot
SLPM_624.62 Gradius 5 - crashes on boot
SLPM_650.80 Tokimeki Memorial 3 - activating the synthetic speech system causes a crash
SLPM_661.68 Ryu ga Gotoku - major stutters in FMVs
SLPM_743.01 Ryu...
Using OPL BDM 4.7:
SanDisk 256GB EXFAT: works, no change from 4.5
Samsung 4GB FAT32: works, no change from 4.5
Sony 16GB FAT32: doesn't work, no change from 4.5
Kingston 128GB microSD EXFAT: works, no change from 4.5
SanDisk 200GB microSD EXFAT: works, no change from 4.5
the SD card log from...
They were present in older builds, but these are things which notably have not been improved or fixed with newer BDM releases. Whereas other games like Sakura Warw 5 were fixed over the various releases.
Oh yeah, I contributed to this earlier. It could really use a purge though; almost all the info is quite old at this point and a lot is pulled from non-BDM builds.
I've tested every game I have and only found obvious problems with 5 of them. Gradius 3&4 and Gradius 5 fail to boot entirely, Vampire Chronicles fails to boot, and Ryu Ga Gotoku 2 has extreme stuttering during FMVs.
I tested different "modes" as well with each of these and couldnt make any of...
I've been keeping a log of things that cause crashes on BDM4.5. So far the list is very slim, as in one thing - the synthetic speech system in Tokimeki Memorial 3 hangs every time. But I will continue checking it out as I play more games extensively though.
RD4 results:
Kingston 128GB microSD EXFAT - works (change!)
SanDisk 200gb microSD EXFAT - works (no change)
Sony 16GB SD FAT32 - doesn't work (no change)
SanDisk 16GB SD FAT32 - works (no change)
Samsung 4GB SD FAT32 - works (change!)
Thanks.