Got Stucked after CYANOGENMOD...Logo only

i really want Cyanogenmod thats why i am already 3 days working on it, first try i install cm 10.2 because this is what i saw in IBM times, btw my S3 is stock 4.3 before i start flashing cm. after flashing cm10.2 got unknown IMEI and unknown baseband, wht i did is to flash again stock firmware via odin,I9300XXUGNB6_I9300OJVGNB3_I9300XXUGNA8_HOME.tar, after flashing, everything went fien, my imei and baseband restore to normal, again i root my s3, and flash again the CM10.2, success and the baseband and IMEI still ok, BUT THE problem is no service, no signal/network....flash again stock, and my friend told me to try from http://get.cm after that success, BUT still the problem is no service.......... i root again and try to patch with ariza, but cant, when i check odin mode, i see the binary counts: YES 3counts, and after that i use triangle away, to reset, success, reseted.

now i want to flash with stock firmware and stop using custom rom, (frustrated).........

first try, flashing complete! but after restart...samsung logo only...

try again flash by ODIN, it doesnt continue this time,


OSM> Leave CS..
<ID:0/007> Odin v.3 engine (ID:7)..
<ID:0/007> File analysis..
<ID:0/007> SetupConnection..
<ID:0/007> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)

i hope somebody will try to help me...back to stock!

thnks

flash again with stock 3 times, back to normal thanks for reply