# Panic Code 070 0 What is it?

**URL:** <https://forum.makecode.com/t/panic-code-070-0-what-is-it/11575>\
**Category:** micro:bit\
**Created:** [January 3, 2022, 4:00am UTC](https://forum.makecode.com/t/panic-code-070-0-what-is-it/11575 "2022-01-03T04:00:25Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![dsssssssss9](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/dsssssssss9/32/861_2.png) [@dsssssssss9](https://forum.makecode.com/u/dsssssssss9)\
**Post date:** [January 3, 2022, 4:00am UTC](https://forum.makecode.com/t/panic-code-070-0-what-is-it/11575/1 "2022-01-03T04:00:25Z")

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Hi

I have some code on MicroBit V2 that gives me panic code 070

Anyone know what this error means as i can’t seem to find any info on it

Thanks

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**Author:** ![bsiever](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/bsiever/32/1032_2.png) [@bsiever](https://forum.makecode.com/u/bsiever)\
**Post date:** [January 3, 2022, 5:11pm UTC](https://forum.makecode.com/t/panic-code-070-0-what-is-it/11575/2 "2022-01-03T17:11:58Z")

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That’s a “CPU SDK Fault”(see [ErrorNo.h](https://github.com/lancaster-university/codal-core/blob/master/inc/core/ErrorNo.h#L80)). The “70s” are:

- `MICROBIT_PANIC_SD_ASSERT`: 70
- `MICROBIT_PANIC_APP_MEMACC`: 71
- `MICROBIT_PANIC_SDK_ASSERT`: 72
- `MICROBIT_PANIC_SDK_ERROR`: 73
- `MICROBIT_PANIC_SDK_UNKNOWN`: 74

Error 70 is the “Soft Device Assert” and indicates a problem in interactions with the Bluetooth [Soft Device](https://infocenter.nordicsemi.com/topic/ug_gsg_ses/UG/gsg/softdevices.html).

I’ve been doing a fair amount of Bluetooth stuff recently and have run into this too. I may be able to help if you can provide a bit more detail.

If you’re developing an extension or doing low level work, it may be better to get input from the Slack forum. You can join via: [https://support.microbit.org/support/solutions/articles/19000016193-microbit-community-slack](https://support.microbit.org/support/solutions/articles/19000016193-microbit-community-slack) (post to the #makecode-extensions channel).

Bill

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<div class="post-metadata">

**Author:** ![dsssssssss9](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/dsssssssss9/32/861_2.png) [@dsssssssss9](https://forum.makecode.com/u/dsssssssss9)\
**Post date:** [January 3, 2022, 10:00pm UTC](https://forum.makecode.com/t/panic-code-070-0-what-is-it/11575/3 "2022-01-03T22:00:35Z")

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Hi

Thanks for the info

Think it may be some sort of incompatibility with the extensions i am using?

I will revisit the problematic code sometime this week - rest assured if i need help i’ll come running!!

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<div class="post-metadata">

**Author:** ![bsiever](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/bsiever/32/1032_2.png) [@bsiever](https://forum.makecode.com/u/bsiever)\
**Post date:** [January 4, 2022, 5:10pm UTC](https://forum.makecode.com/t/panic-code-070-0-what-is-it/11575/4 "2022-01-04T17:10:11Z")

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It could be because of the combination of extensions. Some extensions do operations in a way that isn’t acceptable when bluetooth is running.

Bill