HTC rhyme: wifi not working after flashing new rom


hi, I flashed an old HTC rhyme Verizon cdma phone with a HTC rhyme GSM rom found on internet. some features don't work after the flash, such as wifi, camera. everything else work fine, it actually lasts longer after the flashing (1 day vs 5 days before and after the flash).

since HTC offers this phone in two flavors: CDMA and GSM. is it possible to extract the wifi driver from cdma rom and put on the GSM rom I flashed to? it's too much trouble to flash back to the Verizon rom and all I really need is just wifi.