Hey..I got same problem..But now,i know how to fix it..It's easy..This STEP ONLY FOR X8 Under 11W28!.
1.Connect your Phone using USB (Debugging Must activate) And Run > msm7227_setool2 >U must get like this:
"process requires standard 2.x android firmware. Press any key to continue . . .
Getting ROOT rights. 1743 KB/s (585731 bytes in 0.328s)
error: protocol fault (no status)
Removing NAND MPU restrictions via SEMC backdoor. Permanent.
Require ROOT rights.
192 KB/s (3087 bytes in 0.015s)
Getting ROOT rights. Waiting ...
Writing patched semcboot.
Two step process First, we need get access to semcboot area 504 KB/s (8064 bytes in 0.015s) Second, we need to write semcboot ;) 1130 KB/s (596916 bytes in 0.515s)
successfully wrote 0003ff00 Press any key to continue" *(Dont press any key..Just close it.If not,It will make your phone HardBRICK) . . .
2.After that..Dont unplug your usb yet just click again to >msm7227_semc>Same step at step 1>your phone will reboot automatically..Just wait..ENJOY WITH YOUR SIGNAL BACK!!.
I DONT RECOMMENED YOU TO DO THIS..DO WITH YOU OWN RISK!!.Thanks IF I HELPED!!..