true AT+EPBSEH=?;+EPBSEH:"support_gsm_band","support_umts_band","support_lte_band","support_nr_band" AT+EPBSEH?;+EPBSEH:"gsm_band","umts_band","lte_band","nr_band","nsa_band" AT+ECBANDCFG?;+ECBANDCFG:support_cdma_band,cdma_band GSM Mode gsm_band=0 gsm_band=support_gsm_band inside support_gsm_band gsm_band gsm_band1,gsm_band3,gsm_band4,gsm_band7 UMTS Mode umts_band=0 umts_band=support_umts_band inside support_umts_band umts_band umts_band0~19 LTE Mode lte_band=0 lte_band=support_lte_band inside support_lte_band lte_band lte_band0~31 lte_band32~63 lte_band64~96 NR Mode nr_band=0 nr_band=support_nr_band inside support_nr_band nr_band nr_band0~319 CDMA Mode cdma_band=0 cdma_band=support_cdma_band inside support_cdma_band cdma_band cdma_band0~15 Warning: It is prohibited to deselect all bands for GSM/UMTS/LTE/NR settings. Please go to EngineerMode -> Network Selecting to disable the corresponding RAT. AT+EPBSEH="gsm_band","umts_band","lte_band","nr_band" AT+ECBANDCFG=cdma_band rebootModem()