Turn off the Fly E185 completely. Connect it to the PC via USB while holding the "Boot" key (often the center button or volume keys, though many Fly models auto-detect when plugged in while off).
A green circle or "Download OK" message will appear when finished. Disconnect and reboot. proshivka dlia fly e185 skachat
The most reliable source for archived "Stock" firmware and original flashing utilities. Turn off the Fly E185 completely
Since Fly's official support for this model has ended, you can find the firmware files on the following community-driven archives: including custom versions and driver packs.
A popular Russian-language forum with detailed threads on the Fly E185, including custom versions and driver packs.