(23.05.2024, 07:52)admin Wrote: Check that you have correct APN and dial number settings.
Post what you have in System config > Status > System log.

(23.05.2024, 07:58)admin Wrote: Default dial number is *99***1# but it might be different, check with your operator.

Also post what you have in System config > Status > System log.

(23.05.2024, 08:11)admin Wrote: Dial number is set in System config > Network. But you don't need to specify it if the default one is used.

Is SMS script working for you?

(23.05.2024, 08:31)admin Wrote: If SMS script is working then the hardware is ok. This means that your configuration is wrong. Maybe a username or password is needed. Your operator should provide all settings - APN, user/password (if applicable) and dial-up number.

(23.05.2024, 08:48)admin Wrote: Have you tried using this SIM on a different LM?

(23.05.2024, 08:51)Frank68 Wrote:

(23.05.2024, 08:48)admin Wrote: Have you tried using this SIM on a different LM?

Now I have put new SIM tested on other LM and the new SIM working on ther LM.

(24.05.2024, 07:31)admin Wrote: It's not a user script, it's an init sequence of the 3g/4g services. Usually this error means that the configuration is incorrect.

If you are sure that all settings are correct then the only option is to replace the SIM card.

(24.05.2024, 08:45)admin Wrote: Disable SMS script and 3g/4g connection then run this script once and post what you get in Logs. Don't forget to change apn variable value.

Code:

apn = 'PUT_YOUR_APN_HERE' dial = '*99***1#' io.writefile('/sys/class/gpio/export', 8) io.writefile('/sys/class/gpio/export', 71) io.writefile('/sys/class/gpio/gpio8/direction', 'high') os.sleep(1) io.writefile('/sys/class/gpio/gpio8/direction', 'low') io.writefile('/sys/class/gpio/gpio71/direction', 'high') tty1 = '/dev/ttyACM3' tty2 = '/dev/ttyUSB2' for i = 1, 20 do   os.sleep(1)   if io.exists(tty1) then     tty = tty1     break   elseif io.exists(tty2) then     tty = tty2     break   end end if not tty then   log('init failed')   return end buf = {} function send(cmd, timeout)   port:write(cmd .. '\r\n')   local res, err = port:read(1000, timeout or 1)   return res, err end function sendlog(cmd, timeout)   local res = send(cmd, timeout)   if res then     buf[ #buf + 1 ] = res   end end port = require('serial').open(tty) log('open port', tty) for i = 1, 20 do   res = send('AT')   if res then     break   end end if not res then   log('no response')   return end sendlog('AT&F', 10) -- reset settings sendlog('ATE1') -- echo enabled sendlog('AT+CGDCONT=1,"IP","' .. apn .. '"') -- set apn sendlog('ATD' .. dial) -- connect res = table.concat(buf) log(res)

(24.05.2024, 08:59)admin Wrote: Keep the dial number default (dial = '*99***1#') and try again. This number is never your SIM number.

(24.05.2024, 09:27)admin Wrote: Connect script fails because of "NO CARRIER" message meaning that there's no mobile connection.
Run this updated script and post what you get in Logs:

Code:

io.writefile('/sys/class/gpio/export', 8) io.writefile('/sys/class/gpio/export', 71) io.writefile('/sys/class/gpio/gpio8/direction', 'high') os.sleep(1) io.writefile('/sys/class/gpio/gpio8/direction', 'low') io.writefile('/sys/class/gpio/gpio71/direction', 'high') tty1 = '/dev/ttyACM3' tty2 = '/dev/ttyUSB2' for i = 1, 20 do   os.sleep(1)   if io.exists(tty1) then     tty = tty1     break   elseif io.exists(tty2) then     tty = tty2     break   end end if not tty then   log('init failed')   return end buf = {} function send(cmd, timeout)   port:flush()   port:write(cmd .. '\r\n')   local res, err = port:read(1000, timeout or 1)   return res, err end function sendlog(cmd, timeout)   local res = send(cmd, timeout)   if res then     buf[ #buf + 1 ] = res   end   return res end port = require('serial').open(tty) log('open port', tty) for i = 1, 20 do   res = send('AT')   if res then     break   end end if not res then   log('no response')   return end sendlog('AT&F', 10) -- reset settings sendlog('ATE1') -- echo enabled function readstatus()   local data, res, simok, network   data = sendlog('AT+CSQ')   if data then     res = data:match('+CSQ: (%d+)')     res = tonumber(res)     if res then       log('Signal: ' .. tostring(res))     else       log('Signal: no response')     end   else     log('Signal: no data from port')   end   data = sendlog('AT+CPIN?') or ''   if data:find('CME ERROR') then     log('SIM: not found')   elseif data:find('+CPIN: READY') then     log('SIM: OK')     simok = true   else     log('SIM: unknown')   end   data = sendlog('AT+COPS?')   if data then     res = data:match('+COPS: %d+,%d+,"(.*)",%d+')     if res then       log('Network: ' .. tostring(res))       network = res     else       log('Network: no info')     end   else     log('Network: no data from port')   end   return simok and network end for i = 1, 20 do   if readstatus() then     break   end end res = table.concat(buf) log(res)