Ciphering Not Provided by Operator. Insecure Transmission" After Upgrading to R8BE001

[kamaln]

Hello friends:

Yesterday I flashed my SE w580i to R8BE001 (MAIN, FS and Custom Pack). I used the following...

1. W580_R8BE001_MAIN_GENERIC_LA_RED52.rar
2. W580_R8BE001_FS_S_ASIA_LEVAN_RED52.rar
3. W580i_CDA102774_66_R4A_Customized_India.zip

Everything is fine but now I'm getting the following annoying error whenever I make or receive a call (once the call is in progress). My handset is a normal retail handset and bought from a Sony Ericsson shop and NOT an operator branded one.

Error message: Ciphering not provided by operator. Insecure transmission

but the call continues. I remember getting this error with my earlier firmware (R6BC002) but only once. That time I thought that particular BTS (base transciever station) did not provide the encryption. But after this upgrade, I'm getting this error regardless of the place (any BTS I'm connected to) I'm in.

What could be the problem.
1. Is the firmware I flashed is missing some encryption cetificates that it is not able to encrypt?
2. Does the new firmware has better encryption protocol not yet supported by my operator (but anyways it should be backward compatible)?
3. Is this error should be of concern?

Thanks in advance.