# Is +KPATTERN saved in non volatile memory? (HL780x)

**URL:** <https://forum.sierrawireless.com/t/is-kpattern-saved-in-non-volatile-memory-hl780x/23765>\
**Category:** HL78\
**Created:** [May 18, 2021, 7:15am UTC](https://forum.sierrawireless.com/t/is-kpattern-saved-in-non-volatile-memory-hl780x/23765 "2021-05-18T07:15:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hkiol](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/hkiol/32/5998_2.png) [@hkiol](https://forum.sierrawireless.com/u/hkiol)\
**Post date:** [May 18, 2021, 7:15am UTC](https://forum.sierrawireless.com/t/is-kpattern-saved-in-non-volatile-memory-hl780x/23765/1 "2021-05-18T07:15:40Z")

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Hey,

I have realized the kpattern is stored after hardware reboot, something that is not stated in the datasheet.  
That means i shouldn’t keep saving it in my application in fear of potentially damaging the memory.

Is this a mistake in the documentation?

thanks

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<div class="post-metadata">

**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [May 18, 2021, 11:37am UTC](https://forum.sierrawireless.com/t/is-kpattern-saved-in-non-volatile-memory-hl780x/23765/2 "2021-05-18T11:37:05Z")

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Hi hkiol,

Is +KPATTERN saved in non volatile memory? (HL780x)  
 → Yes, it is.

It is a known issue. The HL78xx document will be updated and published.

Please help to tick “Solutions” if your question is answered.