Crazyflie-Firmware/Crazyflie-Bootloader.md

@@ -18,3 +18,8 @@ To fix this, the bootloader and firmware must be reflashed to the crazyflie. To
 5. Once finished downloading the bootloader to the crazyflie, disconnect USB.
 6. At this point, putting the Crazyflie into bootloader mode should show both M2 and M3 LEDs flashing.
 7. Flash the Crazyflie firmware as normal, see [Flashing](Crazyflie-Firmware/Flashing)
+
+--------------
+# References
+- [Deprecated DFU instructions](https://wiki.bitcraze.io/projects:crazyflie2:development:dfu?s%5B%5D=dfu)
+- [Corrupt Bootloader forum discussion](https://forum.bitcraze.io/viewtopic.php?p=14202&sid=2e50a9806971c1a465fde628f0f85fb1#p14202)
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