Read here: http://www.topsony.com/forum/far-manager-f31/flash-k800-cid53-k810-software-cid53-begginers-t11605-mensaje89845.html#post89845 and these files to debrand:

W580_R8BE001_MAIN_GENERIC_LA_RED53
W580_R8BE001_FS_EUROPE_3_RED53
HB1-06_Gen_CDA102568_12_R8A_GENERIC_EUROPE_3

How to unlock CID53: write in google search this -> How To Patching Your CID53 Phone (db2020)