Now, you must backup your GDFS, like in step1 from the tutorial above.
After that, search for :
W660_R8BB001_FS_S_ASIA_LEVAN_RED52
HB1-06_Gen_CDA102568_110_R8A_GENERIC_S_ASIA_LEVAN.
Add ONLY W660_R8BB001_FS_S_ASIA_LEVAN_RED52 to the right pannel of Setool
and put HB1-06_Gen_CDA102568_110_R8A_GENERIC_S_ASIA_LEVAN.zip to "MISC Files".
Press "Flash" and connect holding "C". After that, you have to unlock the phone, following this Tutorial(Section B. How to apply the generated patches to DB2020 CID52 phones)