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====== Upgrading/flashing the Crazyflie Nano (1.0) ======
There are currently two ways to flash the Crazyflie Nano
==== Upgrade/flash using the Crazyradio or Crazyradio PA ====
The Crazyflie Nano contains a bootloader with which it can be updated over the air (OTA). Either using the cfclient or from command line.
  * [[doc:crazyflie:client:pycfclient:index#bootloader|Upgrading using the cfclient]]
  * [[projects:crazyflie:devenv:index#compiling_the_copter_code|Upgrading using the make environment]]. Convenient for developers. This is also available as a make target in Eclipse in the [[projects:virtualmachine:index|VM]].

==== Upgrade/flash using a JTAG degugger/flasher ====
This is mainly for development and requires a JTAG debugger with ARM Cortex 10-pin interface.
  * [[projects:virtualmachine:jtag_debug|Virtual Machine JTAG debug]]

==== Upgrade/flash using the Crazyflie Android client with the Crazyradio (PA) ====
  * [[https://www.youtube.com/watch?v=MFFhuvYxBxQ|Video tutorial for Crazyflie]] \\ {{youtube>MFFhuvYxBxQ?small}}