Help flashing a Z550a please!!!

Here is my problem, which I haven't been able to work out despite hours spent reading everything I could on the Internet.

When I try to flash the main and FS, it either gives me the following message or XS++ just shuts down abruptly. Does it come from the fact my EROM CID is 52? I couldn't find a Z550 file with CID 52, only 49 or 51.

Thanks for your help!:a007

11:37:01| Platform: DB2010
11:37:01| OTP CID: 51
11:37:01| EROM CID: 52
11:37:01| EROM Color: Red
11:37:01| IMEI: 35350501xxxxxx
11:37:01| Phone ID: Z550
11:37:01| Region: ROGERS
11:37:01| CDA: CDA102731/35 R2A
11:37:01| Firmware Version: R6GA004
11:37:01| EROM: n/a
11:37:01| Ready for operation!
11:37:15|
11:37:15| Sending db2010_db2012_cid52red_flash_r2b012.bin...
11:37:15| Applet ID: 061205 1354 HAN_DB2012_FLASHLOADER_R2B012_CXC1326738
11:37:15| This is a FLASH loader
11:37:15| Now flashing firmware main...
11:37:15| Flashing c:\documents and settings\gîte\bureau\z550_r6ca009_main_generic_red 49.mbn
11:37:15| Header type: BABE
11:37:15| 338 flashblocks
11:37:17| Binary acknowledge failed with: 15
11:37:17| Command: Error 0x15
11:37:17| Failed sending flashblock 1. Returnvalue 0xF7FE2000
11:37:17| Finishing flash