Hi to all. I'm new here but i follow this forum from many years and i always solve my problem with the various post of the other users. Now i really need your help.
I have a phantom 4 and Yesterday I tried to upgrade to the latest firmware but at 75% the computer went off. When I tried to turn it on the phantom did the usual movement with the cam but went into an infinite loop of beeps. I read that i need to format the sd card and put the firmware in root to complete the upgrade but even so nothing happens. If I connect the phantom to assistant me recognizes it and tells me I have the latest firmware but when I try to upgrade or restore to factory settings I fails or is stuck at 0%. What can i do?? Please help me.

I think the continuous beeping is the RC has lost connection to the drone and it needs rebinding, please consult manual as i aint got a clue as to how, although, i think maybe go to the controller section in the app settings and click relink RC or sommat and the click the tiny button on the AC

Have you tried the refresh FW from assistant 2 without a card in AC, it seem to sometimes do a difference on the 4P so worth a try.

The rc is binded. I try without the card in the ac and with assistance but nothing change

I had the same after an up date , i think you will find calibrating the rc will stop it . The rc will only beep repeatedly in 3 situations , 1 you leave it switched on and unconnected to the ac, 2 low battery power, 3 calibration required .

Hey there, just to verify, is it the aircraft beeps or the RC beeps? Could you read the version number in About page?

thanks to all for the reply. the rc is perfect and binded with green led. the problem is the phantom.