Mangoh yellow usim problem!

Hello, I have a one problem!!

I know there’s a USIM inside mango Yellow.
By the way, I want to use another USIM. So there is a problem trying.
Even if I put usim in the slot, mangoh yellow couldn’t recognize my usim. It only recognizes internal usim.

How can I use my usim for mangoh yellow?

Maybe you have to select the SIM slot accordingly, please try:

cm sim info
cm sim select EXTERNAL_SLOT_1

For info, I don’t have MangOH Yellow to check, but hope that may help…

thanks!! i’ll try you advice!