ups patcher — free browser tool | fatcousin

apply ups patches to roms · crc32 verification · source and target checksum · xor block decoder · runs locally · files never leave device

1 — drop ups patch

drop a .ups patch file

UPS1 format · magic verified · CRC32 checked

Select file

2 — drop source rom

drop the source ROM

any binary ROM — size and CRC must match patch header

Select file

log

drop a UPS patch file, then drop the source ROM

3 — apply

ready