# \#blink-pattern

**URL:** https://forums.digi.com/tag/blink-pattern/3298.md

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## [CC9P9215 - System failure LED blink pattern documentation](https://forums.digi.com/t/cc9p9215-system-failure-led-blink-pattern-documentation/18066)

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**Author:** [@floko](https://forums.digi.com/u/floko)\
**Replies:** 2\
**Last updated:** [February 27, 2017, 8:38am UTC](https://forums.digi.com/t/cc9p9215-system-failure-led-blink-pattern-documentation/18066 "2017-02-27T08:38:22Z")

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I have some CC9P9215 which are not booting. The orange and green LED are blinking alternately. In the manuals the only part where the LEDs are mentioned is in the Hardware reference: \[…\] During startup, LE1 will flash …