I am trying to take file from FTP server. But I take this error in QFREAD . WHY?
AT
OK
AT+CFUN=1
OK
AT+COPS=0
OK
AT+CREG=1
OK
AT+CGATT=1
OK
AT+QICSGP=1,1,“internet”,“”,“”,0
OK
AT+QIACT=1
OK
AT+QMTOPEN=0,“104.248.21.33”,1883
OK
+QMTOPEN: 0,0
AT+QMTCONN=0,“Client8320”
OK
+QMTCONN: 0,0,0
AT+QMTSUB=0,1,“risex/1”,1
OK
+QMTSUB: 0,1,0,1
+QMTRECV: 0,1,“risex/1”,“gatewayv3 connected”
AT+QMTPUB=0,1,2,1,“risex/1”,“gatewayv3 connected”
OK
+QMTRECV: 0,2,“risex/1”,“gatewayv3 connected”
+QMTPUB: 0,1,0
AT+QFTPCFG=“contextid”
+QFTPCFG: “contextid”,1
OK
AT+QFTPCFG=“contextid”,1
OK
AT+QFTPCFG=“filetype”,1
OK
AT+QFTPCFG=“transmode”,0
OK
AT+QFTPCFG=“rsptimeout”,90
OK
AT+QFTPCFG=“account”,“risex”,“RiseX!”
OK
AT+QFTPOPEN=“185.153.228.246”,21
OK
+QFTPOPEN: 0,0
AT+QFTPLIST=“.”
CONNECT
-rw-r–r-- 1 1004 1004 35 Jul 04 09:47 test.txt
OK
+QFTPLIST: 0,66
AT+QFTPSIZE=“test.txt”
OK
+QFTPSIZE: 0,35
AT+QFTPGET=“test.txt:”,“UFS:test.txt”,0
OK
+QFTPGET: 627,550
AT+QFOPEN=“UFS:test.txt”,0
+QFOPEN: 1027
OK
AT+QFSEEK=1027,0,0
OK
AT+QFREAD=1027,35
+CME ERROR: 402