problem with 4g modem

[admin]

Modify AT:run() function in the user library as follows and post what you get in LM Logs tab.

Code:

function AT:run()
  local res, err, cmd, pos, sms

  res, err = self:read()
  if err then
    if err ~= 'timeout' then
      log('run error', err)
    end

    return err == 'timeout'
  end

  -- check for incoming command
  if res:sub(1, 1) ~= '+' then
    return true
  end

  pos = res:find(':', 1, true)

  if not pos then
    return true
  end

  -- get command type
  cmd = res:sub(2, pos - 1)

  -- check only for incoming sms
  if cmd ~= 'CMTI' then
    log('run cmd', cmd)

    return
  end

  -- read from sim
  sms = self:incsms(res)

  -- sms seems to be valid, pass to handler if specified
  if sms and self.smshandler then
    self.smshandler(sms)
  end

  return true
end