Thats right FIXED. I am so happy
you see, back about a month ago i tried to restore my otb 1.1.2 jailbroke unlocked(yes i had it unlocked too) iphone, with itunes. er urg I got a semi brick.
Fortuantely(i guess) i read 1.1.3 can fix bricks, so i restored and updated with 1.1.3. YES it works BUT i have the dreaded 04.03.13_G baseband.
I can't downgrade because it's otb1.1.2 so it means i have 4.6 bootloader

so i downgrade the firmware back to 1.0.2(won't jailbreak damit)
so i restore to 1.1.1 using ibrickr to throw it in DFU mode
jailbreak and oktoprep to 1.1.2 jailbreak.

BUT now what i have is a jailbreaked(?) 1.1.2 exspensive itouch
OH well i'll wait

few weeks pass by and nothing, i could hardware mod so its 3.9 bottloader but uking it up more didn't sound like fun.

then along came so sort of an answer an unlock for 1.1.2 and 3 otbs
I jumped straight on to my pc DFU my itouch downgraded to 1.1.1 installed the unlock and oktoprep and upgraded back to 1.1.2
jailbreak and to my amazement and relief a have signal from o2
so i do a quick phone call and text to confirm and yes it works.
So i went to general>about and looked a the settings and...
my baseband is back down to 04.02.13_G
YAY. so thank you Who ever made this unlocker you shall be rewarded in heaven if not on earth.