Updated How to upgrade flash 4G ext firmware (markdown)

GNU 2023-07-22 12:56:31 +08:00
parent 1b3fe970d5
commit 21a7c48c74

@ -52,7 +52,9 @@ cd LE20B04SIM7600G22_cpi_arm64
First, send the command `AT+BOOTLDR` to **/dev/ttyUSB3** to put the device into bootloader mode. At this point, the LED on the back will not light up.
`echo -en "AT+BOOTLDR\r\n" |sudo socat - /dev/ttyUSB3,crnl`
```
echo -en "AT+BOOTLDR\r\n" |sudo socat - /dev/ttyUSB3,crnl
```
Next, use `sudo ./fastboot/bin/fastboot devices` to ensure that the device is detected. It should display something like `MDM9607 fastboot`.
If there is no device information, the operation must be halted.