[Problem] fonts.xml deletes itself

Hello,


Yesterday, I uploaded sylfaen.ttf and fonts.xml to my phone (W880i CID53)

Well, I didn't like it and decided to upload a new ones (arial_geo.ttf and modified fonts.xml)

But when I turned my phone on, it was all messed up. Then I looked in my fonts folder and I saw only default fonts (Sans-Serif_Europe_Bd.ttf and Sans-Serif_Europe_Reg.ttf) without fonts.xml. I tried to upload default fonts.xml, but it deleted itself again.

Can anyone help me?

thx a lot in advance