Yezz ANDY 4EI Manual Del Usuario página 20

If you have multiples APN Configurations for the same SIM
card, choose which one you want to use touching the radio
button [ ] at the right side of the name.
To add another connection, repeat from step 3.
Switch between carriers
(SIM cards)
If you use multiple SIM cards and want to switch to another
one, follow these steps:
1. In the applications list, touch [ ] Settings to access to
the device configuration.
2. Touch SIM management [ ]
3. Choose the option Data Connection [ ] and
select the SIM Card that you want to use.