now this tool, are generating the patch to my k550 cid 52 :D
this is the patch who was generated
;K550 SW-R6BC002
;Remove SIM-Lock
;(c) IronMaster
;(p) simox SIM_lock_remover patch generator v2.1
+44140000
4EDE70: 30B5041C00231A1C111C1C2094F4 F0B505213A229BF459FD0020F0BD
put i'm afraid to send it to my phone and kill it! Is there any way to copy the main firmware directly from my phone? to creat something like a backup!! :(
Tanks to everyone on this post!!!