[zhw118511]

I have both 6154 clones - the red VNCI and grey 6154 and both of them seem to work properly for me. The red VNCI needs his own driver, the gray 6154 works out of the box as an original 6154A.
For flashing I use it hooked to USB cables, for coding and simple diag jobs I use it by wifi - the connection is stable, no issues even after 30 or more minutes being connected.

I was only unable to get it working in infrastructure WLAN mode - I can't get both of them connecting to my own wifi, they work only in adhoc/direct access point mode. I tried to press the button on both of the devices, it just beeps and the leds are blinking different way, but no connection to wifi.

Red vnci use original driver. He only has a device manager for upgrading firmware. The grey one doesn't have, maybe it's out not a long time and firmware doesn't need to be upgraded(the last upgrade for red one is in Oct). it is said grey one will have in future.

Does the grey future also require firmware upgrades