Wireless Joint

Hi, as Ive explore my modem, ive come to know its AT commands but does NOT understand some of it.
But i think one of the commands that could solve my CARRIER AGGREGATION problem is the command below but i dont know what to fill in,such as those LTE BAND ENABLE,GW BAND ENABLE, LTE BAND MASK, GW BAND MASK,
Hope you can help guys. Maybe we have different modem but maybe those words sounds familliar to you.
AT+ZNLOCKBAND=<lte_band_enable>, <gw_band_enable>, <lte_band_mask>, <gw_band_mask>

The LTE_BAND_MASK is the hard part, the rest is likely...

AT+ZNBANDLOCK=1,0,<lte_band_mask>

you can likely leave the last part blank or just add a ",0" at the end.

You can try the band mask for Quectel, Sierra, or Telit. The AT command manuals have them. We also have few spreadsheets on them. Look under the modem forums

Thank you bro. It really helps. The quectel band mask works.