Help needed tried to debrand k850i phone gets error message when turned on

[ant16151189]

Hi guys i have tried to debrand my sony ericsson k850i using a2 uploader

i followed the guide from here

A2-DB3150-DB3210 Flashing - SE Users


i used K850_R1CA029_MAIN_GENERIC_SO_RED52 as my main

and used K850_R1CA029_FS_TELEF-GEN_RED52 for fs

and used K850i_1202-5694_R11A_Customized_United_Kingdom for my custom

i added the 2 files as it said in the guide

then added the custom in misc

then hit flash

holded c then plugged in usb cable while phone was off it started writing blocks or something like that. when it finished i clicked stopped and exit the program. gone to turn my phone on and it says this

configuration error. please contact your network operator or service centre.

i hope this can be fixed

as i cant use my phone

thanks in advance.

[ant16151189]

now sorted by following this

Sony Ericsson Stuff - Help - a2uploader won't recognize the phone

thanks