Stock rom for Defy plus

I installed CM9 on my Defy plus and now upgraded to CM10. When I started using GoTalk prepaid, I was not able to use the mobile data because the phone was not able to receive the configuration SMS from GoTalk. I haven't had this problem with the stock rom on Huawei Y201. Now I wonder if I can install the original stock rom for my Defy Plus. Does anyone have any experience reverting to stock rom for a Defy Plus?