So the next day (this morning) I tried flashing it again, but this time using different files and a different program hoping it would overwrite everything. The program I used this time was XS+++ 3.1. The main was: "W580_R8BA024_MAIN_GENERIC_LA_RED52.mbn" and the FS was: "W580_R6BC002_FS_AMERICA_1_RED52.fbn" and the Custpack was: "Laura_i_CDA102774_20_R1A_Generic_Trade_USA.zi p"

I forgot which tutorial I followed but I just did it how it was supposed to. But nothing happened the fonts were still too big and when I put in the sim it said "Config. Error..." I tried flashing and putting the custpack again using the same method as from this morning but nothing happened. Can anyone help me? Thanks![/QUOTE]

You need to use matching MAIN & FS files - the same firmware version. R8BE001 is the latest for the W580. The ones listed below are what I am using, and they work fine. I have chosen not to upgrade to CID53 till XS++ supports it.
W580_R8BE001_MAIN_NAM_1_LA_RED52
W580_R8BE001_FS_AMERICA_2_RED52
The custom file you listed -Laura CDA 102774 is fine.

They are available in the download area.

Good luck!