PokeGen generated pokemon causes freeze/hang?

[Apceroz]

I really wanted a Zorua for my Pokemon Black Version. So I tried to generated Celebi into my .sav file...with this "http://www.pokedit.com/download/event-pkm/Celebi+Gamestop_7016/"

I loaded both my sav file and this .pkm and set it into my party. Then saved, placed into my r4 cart, booted up my game. Somehow, when I encounter a wild pokemon or trainer, it will freeze at this white screen just before it's supposed to go into the battle screen.

Have I done something wrong somewhere? How come I've never seen anybody that seems to have any freezing errors? Or isit because of a faulty ROM? Any help appreciated!

[ReignOfComputer]

Upload your .sav for us to look at.

[evandixon]

I doubt that is a problem with the save file, unless it goes back to working if you undo your changes.
I recommend trying the following:
1. Ensure you are using Wood R4 as your kernal as opposed to the official one.
2. If you are using Wood R4, Reformat your MicroSD card (back up all the files on it, format it with either the Panasonic SD formatter or the one in Windows, the copy all the files back)
3. If that doesn't work, obtain a new ROM (preferably by backing up your own cartridge)

[Apceroz]

It happens that I've been using a faulty rom. So I replaced it with another one and it now works ^^ (for now)
Thanks for helping anyways!
@evandixon how does reformatting help?

[evandixon]

@evandixon how does reformatting help?

Sometimes after a while of use, micro SD cards can become slow (things like file fragmentation), and reformatting it helps speed it up 90% of the time.
Read for more info on how to do it: http://gbatemp.net/topic/308089-speed-up-slow-sd-card/

(Oh, and don't use the file defragmenter on an SD card.)

[Apceroz]

Thanks a bunch!