PLS62 disable LTE | Telit Cinterion IoT Developer Community

On a pls62-w I'm trying to disable lte.

In order to do so I try to disable all lte bands, but this is not allowed and described in the AT command reference guide.

AT^SCFG="Radio/Band/4G","0x00000000"

+CME ERROR: invalid index

In what way can I fully disable 4G/3G of 2G? 

Thanks,

Rudger.