RT-AX88U 386.1 beta 5 wrong firmware........help me!

[NoobuserAdvanced]

i have today RT-AX88U 386.1 beta 4 i will ugrade! to RT-AX88U 386.1 beta 5 now my problem come.......

Invalid Firmware Upload
Firmware upgrade unsuccessful. This might result from incorrect image or error transmission, please check the model name RT-AX88U and version of firmware from support site and try again.

Whats wrong?

 

[Deleted member 22229]

You may have to use the firmware recovery tool. Known issue for some. Read the Merlin beta thread.

 

[Slawek P]

i have today RT-AX88U 386.1 beta 4 i will ugrade! to RT-AX88U 386.1 beta 5 now my problem come.......

Invalid Firmware Upload
Firmware upgrade unsuccessful. This might result from incorrect image or error transmission, please check the model name RT-AX88U and version of firmware from support site and try again.

Whats wrong?

Is router still usable after the failure and showing previous version? If yes, I would try again - have you removed USB disk in Web UI? For me it worked the second time.
If not responding already then recovery tool.