@nicolati Thank you very much, my switch is up to day now ! I think at first my switch was buged and did not boot on the correct firmware, then Omada made it crash maybe because of the to large jump...

@nicolati Ok I see what you mean now. I remember I saw those 2 images when I connected to the switch with putty (console). I tried to load both of them and I did not see any difference in the main...

@nicolati Thank you for your answer, but I think I am doing the correct process... Here is the screen you asked me - system reboot menu: And also just in case... to be sure here are 2 screens showing...

@nicolati Hello, I do not see what you are talking about, I see only 1 way to upgrade my firmware in standalone ; here are 2 screens showing the post loggin page and the firmware upgrade page. Let me...

@Clive_A I applied your firmware, it has beed loading (see picture). After reboot, the switch was reseted (admin/admin login and default settings) but when checking in info, I am still under the...

@Clive_A When I clik on your link, here is an error : {"statusText":"Bad Request","message":"登录认证失败","statusCode":400} (I reseted my switch already and I am able to upgrade it in standalone mode)