To directly patch source file, a temporary file is being made.
Upon successful patching, the target file will be replaced with this.
Applying patch file 'C:\Users\Sean\Desktop\Gaming\Pokemon Hacks\Emerald Omega\Emerald Omega\Emerald Omega.ups' ...
Reading file 'C:\Users\Sean\Desktop\Gaming\Pokemon Hacks\Emerald Omega\Emerald Omega\Pokemon Emerald.gba' ...
Target file is 'C:\Users\Sean\Desktop\Gaming\Pokemon Hacks\Emerald Omega\Emerald Omega\Pokemon Emerald.gba.utm' ...
Patch application will take approximately 0 minute(s), 16 second(s).
Please be patient ... UI will not be responsive during this time.
Failed! Input checksum is invalid.
.....this is the message I have been getting every single time with every single Emerad ROM I could find online(a bit of exaggerating there but still...).
So, if you could just tell us the exact type of ROM you used with this(exact name and all) since you(and the rest of us) can't post a link to ROMs, that'd be helpful as I tried different sites all over, and failed.
If that is not allowed, I apologize for asking.
Edit: I'm using tsukyomi as the patching program.