My flipper died

During a firmware update via Bluetooth, the connection was interrupted, the flipper turned off and froze…
I tried all reboot options (official instructions)
The Flipper computer doesn’t see it. Please help me!
Since I communicate through a translator, there may be errors!

Did you try Firmware recovery - Flipper Zero - Documentation?

Try restoring it with a pc and qFlipper

DFU should work.

you could also try to extract the tgz to the SD directly in the root of the SD in create a update folder where the contents of the tgz must be placed, and it should pickup flash from there after reset.

And stop updating firmware over BT. It is too unstable for a delicate part as updating firmwares as it goes over wireless connection which can be interrupted easily.