thanks for reply.
what If I install ICS OTA ROM ? Do I need to reinstall radio ?
next question theres is a ICS untoucked rom in revolution hd forum.Is this rom exactly htcs rom ?
or could you please send me a link of official htc ics rom ?
and could you please tell me cid of one of countries that they got ics already.
thanks
The Radio comes with a firmware package as opposed to a ROM, so just flashing a ROM won't fix that.
Android Revolution HD is a very nice ROM, if you like the Sense UI and don't want to go for AOSP like OpenSensation/CyanogenMod 9 then ARHD is your best choice. The main difference is it gives you the latest version of everything as well as many tweaks and enhancements for it to run smoother. I don't have any links for plain unmodified HTC update packages.
As for the CID, you want to flash a Radio/Firmware based on the CID you have. The only exception is if you are SuperCID, but you still want to flash the one that matches YOUR carrier. Radios are all different. If you used Orange UK for example and I gave you a Radio for T-Mobile US it wouldn't help at all.