@Sunshine Hello, The provided beta firmware works well, I'm now able to upgrade to the latest official version, that's quite fine ! Thank you very much for your help :)

@Sunshine Hi, I'm facing the same issue as many others in this thread with my Archer MR600v2, I cant proceed to firmware upgrade :( Here are firmware info : Firmware Version: 1.4.0 0.9.1 v0001.0...