Update wired-ethernet.md

Author: glynhudson

docs/wired-ethernet.md

@@ -40,6 +40,12 @@ Pre-compiled FW can be downloaded from the [repo releases page](https://github.c
 
 ESP32-gateway can be connected by micro USB and firmware can be uploaded using esptool:
 
+**For rev G**
+
+`esptool.py --before default_reset --after hard_reset write_flash  0x1000 bootloader.bin 0x8000 partitions.bin 0x10000 esp32-gateway-e.bin`
+
+**For rev E**
+
 `esptool esptool.py --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size detect 0x1000 bootloader.bin 0x8000  partitions.bin 0x10000  esp32-gateway-e.bin`