Bricked ESP8266-EVB-BAT, current firmware version?

[tohox]

Hi,

My client has bricked an ESP8266-EVB-BAT board I had previously programmed for him. I now have to guide him through the process of reflashing the firmware and would like to know if the v1.5.0 mentionned in the documentation is still current and, if not, which firmware version do these module currently use? I see the latest version on Espressif's Github appears to be 3.0.5.

Also, I noticed that the bin file names have changed since the documentation was written. Is there an updated list of the correct files to upload and in which order?

Much appreciated,