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Updated How to upgrade 4G extension firmware (markdown)

GNU 2023-07-22 20:31:40 +08:00
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How-to-upgrade-4G-extension-firmware.md

@ -117,7 +117,7 @@ finished. total time: 0.005s
Once the flashing is completed, the device will automatically reboot, and the LED on the back will light up again.
At this point, run "sudo dmesg |tail" to check for the following output:
At this point, run `sudo dmesg |tail` to check for the following output:
```
[ 1033.836166] option 1-1.3:1.2: GSM modem (1-port) converter detected
[ 1033.836636] usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB0
@ -137,9 +137,9 @@ Next, modify the USB ID of the module using AT commands:
`echo -en "AT+CUSBPIDSWITCH=9011,1,1\r\n" | sudo socat - /dev/ttyUSB2,crnl`
If you receive an "OK" response, the device will automatically reboot. Wait for the LED to flash again.
If you receive an `OK` response, the device will automatically reboot. Wait for the LED to flash again.
Finally, run "sudo dmesg | tail" to check for the following output:
Finally, run `sudo dmesg | tail` to check for the following output:
```
[ 1033.836166] option 1-1.3:1.2: GSM modem (1-port) converter detected
@ -185,6 +185,6 @@ The above-mentioned flashing operation requires your familiarity with Linux and
once you flashed the new firmware, there is no going back
even if you switch id from 9011 to 9001 ,mmcli may still not able to see the 4G modem any more
Therefore, there are risks involved in flashing the 4g ext, and it is necessary for you to have a certain understanding of these background information. During the testing process, it is also not possible for me to test whether all SIM cards worldwide can easily connect to the internet through USB0.
Therefore, there are risks involved in flashing the 4g ext, and it is necessary for you to have a certain understanding of these background information. During the testing process, it is also not possible for me to test whether all SIM cards worldwide can easily connect to the internet through **usb0**.