Initially, Flipper Zero in the package is in transport mode. In this mode, only the internal clock of the microcontroller is powered. Read more in the Power section. To power on the device press the :back: button.

The Flipper Zero firmware is still in active development and some of its features may be unstable. The device might freeze during use. Just reboot it if freezes happen.

The microSD card stores all kinds of resources - keys, cards, remotes, databases. It is also utilized to update the firmware, so it is important to install the microSD card BEFORE updating. Flipper Zero supports microSD cards up to 128GB, however, we recommend using an microSD card with a maximum capacity of 16GB or 32GB.

After installing the microSD card, a mount error message may appear on the screen of the device:

This error can occur for the following reasons:

• The microSD card has a file system other than FAT32 or exFAT.
• There is no file system on the microSD card.
• The microSD card is damaged.

To fix the problem:

1. Format the memory card according to the instructions: Formatting the microSD card. All data on the memory card will be deleted.
2. On the home screen of the device, press :right: to close the message.
3. If the error message persists, replace the microSD card with a different card.

The Flipper Zero firmware is in beta and is under active development. We improve it daily. That's why we recommend you to update the firmware and internal databases to the latest version right away. Read more in the Firmware update section.