- About SNAP
- Getting Started
- RF Modules
- IoT Gateways
- SNAPconnect E12 Gateway
- SNAPconnect E20 Gateway
- Full Example
- Scaling In Production
From time to time you may need to restore a SNAPconnect E12 to the factory default state.
Restoring from a microSD Card¶
Write new image to a microSD card¶
Using an application such as Win32DiskImager, program the microSD card with the downloaded image.
dd from the command line, where
if is the sdcard image file and
of is the device location of the
microSD card device. For example:
$ dd if=e20-VERSION-sdcard.img of=/dev/sdX bs=1M $ sync $ eject /dev/sdX
Ensure that the
of variable points to the correct microSD card device location before executing this command.
Remove the E12 from the Case¶
Remove power and remove the E12 board from its metal casing. Use proper ESD strategies while touching the bare E12 board.
Insert the microSD card into the microSD card slot.
Use microSD to restore E12¶
Hold the button on the back of the PCB (not the button near the slot)
Release the button
After a few moments, the LED should turn from amber to red, indicating the restore process is in progress. After about five minutes (your time may vary depending on factors such as the speed of your microSD card), the LED will turn green, indicating that the process is complete. Finally, disconnect power from the device, remove the microSD card, reassemble the E12.
Your SNAPconnect E12 is now restored and ready to use.