Default [Q] The problem with range after unlocking the bootloader.

Hi there.
Please help and understanding administrator.My English is not so good. I'm using google translator.
I have a problem with my htc. One Unlock the bootloader by htc dev ... I wanted to do root and upload a different rom. and here began to have problems with coverage.will appear and only after uploading the radio There are two bars and disappear. Unable to write SMS or call. I do not know if this is normal.
Here is the info about the phone
hboot-2.02.0002 s-off
Android 4.0.4 with Sense 3.6
SW version. 4.10.405.1
3.016 kernel-gfa98030
baseband version 20.74.30.0833U_3831.18.00.11_M
I tried to upload the newer Radio (20.76.30.0835U_3831.19.00.19) by PG32IMG.zip it did not work. returned to the same method (20.74.30.0833U_3831.18.00.11) on the radio because it was good before.
What can I do with this problem. Trying to upload RUU (RUU_VIVO_ICS_35_S_TWM_TW_4.10.921.1_Radio_20.74.3 0.0833U_3831.18.00.11_M_release_266252_signed)
or (RUU_VIVO_ICS_35_S_hTC_Asia_WWE_4.10.707.1_Radio_2 0.74.30.0833U_3831.18.00.11_M_release_266513_signe d) ?

Yes, I am inexperienced but I have imagination heh ... the problem was solved. It was enough to replace the back door (unless there is a antenna amplifier) Noob. Leave the other not experienced people ...