- Modificato
Here is full instruction how to check band controling on original firmware
We need your support to check b2,b5 and b32 controlling by AT commands on original firmware. We cannot test those bands in Poland and we do not have those bands even in our original gui.
Please avoid USB/uart adapter made on CH340 because one generates "bushes" on startup.
Properly working adapted is made on CP2102 oe PL2303.
Please connect PC with eg. teratem app via USB/uart cable and try to control modem module by means of AT commands as below:
Examples of AT command sending:
echo -e -n 'AT+ZNLOCKBAND=1,0,80005,0\r' > /dev/ttyUSB1
echo -e -n 'AT+ZCAINFO?\r' > /dev/ttyUSB1 && grep -m1 "ZCAINFO:" /dev/ttyUSB1
echo -e -n 'AT+ZNLOCKBAND?\r' > /dev/ttyUSB1 && grep -m1 "ZNLOCKBAND:" /dev/ttyUSB1
Band locking examples:
AT+ZNLOCKBAND=1,0,1,0 - Band 1
AT+ZNLOCKBAND=1,0,4,0 - Band 3
AT+ZNLOCKBAND=1,0,40,0 - Band 7
AT+ZNLOCKBAND=1,0,80000,0 - Band 20
AT+ZNLOCKBAND=1,0,41,0 - Band B1 +B7
AT+ZNLOCKBAND=1,0,45,0 - Band B1 + B3 + B7
AT+ZNLOCKBAND=1,0,80040,0 Band 7 + 20
AT+ZNLOCKBAND=1,0,80005,0 Band 20 + 1 +3
AT+ZNLOCKBAND=1,0,2,0 - Band 2
AT+ZNLOCKBAND=1,0,10,0 - Band 5
AT+ZNLOCKBAND=1,0,80000000,0 - Band 32
AT+ZNLOCKBAND=1,0,20080800C5,0 - All bands, this value is valid for polish bands, for italian bands can be different
you can calculate proper value for eg. b1+b3+b32 by simple sum.
Probably "real" all bands will have:
AT+ZNLOCKBAND=1,0,20880800D7,0
Other commands for your information
AT commands for APN setting:
AT+CGDCONT=1,"IP","internet","",0,0
AT+CGACT=1,1
aggregation information:
AT+ZCAINFO? returns state
primary cell information:
AT+ZCELLINFO? returns state
+ZCELLINFO: 70938895, 307, LTE B20, 6350
Permanent pci/earfcn locking, to remove locking see below:
AT+ZLOCKCELL=? command syntax help
AT+ZLOCKCELL:earfcn_tag,pci_tag
AT+ZLOCKCELL? returns state
AT+ZLOCKCELL=6350,307 here sets locking to earfcn=6350 and pci=307
and then AT+CFUN=1,1
Permanent pci/earfcn locking removal:
AT+ZLOCKCELL=0
and then modem restart by AT+CFUN=1,1 or router power reboot
locked bands information:
AT+ZNLOCKBAND? returns state
+ZNLOCKBAND: 80005,2000000680380
uplink aggregation information:
AT+ZULCA? returns state
AT+ZULCA=1 enables uplink aggregation
AT+ZULCA=0 disables upling aggregation
Modem rebooting:
AT+CFUN=1,1
Modem state:
AT+CFUN?