Update README.md

atc/fib-fm350_gl/README.md

@@ -6,9 +6,12 @@ kmod-usb-serial-option
 kmod-usb-net-rndis
 comgt
 ```
+To be used with `luci-proto-atc`
 \
 USB hotplug script add Option driver. You can edit `/etc/hotplug.d/usb/50-fm350_driver` to use Generic driver.
 
+AT command base script. Handles network disconnections if your service provider use NITZ.
+The FM350-GL modem has a limitied support for AT command and the only trigger for reconnection is the indication of received NITZ information, `+CTZV`.
 Support dual stack and received SMS will be stored in `/tmp/sms/rx` folder and the full path is sent to `/usr/bin/atc_rx_sms.sh <full path>`. `atc_rx_sms.sh` is not included in the package.
 
 
@@ -17,4 +20,16 @@ Download and install with:
 ```
 wget https://github.com/mrhaav/openwrt/raw/master/atc/fib-fm350_gl/atc-fib-fm350_gl_2024-04-24-0.1_all.ipk
 opkg install atc-fib-fm350_gl_2024-04-24-0.1_all.ipk
+
+`60-fm350_crash`
+```
+If you have problems with modem crashes this hotplug script may help to re-start the interface.
+```
+if ([ "$PRODUCT" = 'e8d/7126/1' ] || [ "$PRODUCT" = 'e8d/7127/1' ]) && [ "${DEVICENAME: -3}" = '1.6' ] && [ "$ACTION" = 'bind' ] && [ -f /tmp/fm350.status ] && [ $(cat /tmp/fm350.status) != 'boot' ]
+then
+    logger -t fm350-gl 'Modem has crashed'
+    echo $((1+$(cat /tmp/fm350.status))) > /tmp/fm350.status
+    wanIface=$(uci show network | grep "proto='atc'" | awk -F '.' '{print $2}')
+    ifup $wanIface
+fi
 ```