# Raspberry Pi I2C notworking?

**URL:** https://discuss.blues.com/t/raspberry-pi-i2c-notworking/372
**Category:** Uncategorized
**Created:** [August 16, 2021, 1:16pm UTC](https://discuss.blues.com/t/raspberry-pi-i2c-notworking/372 "2021-08-16T13:16:18Z")
**Posts on this page:** 1
**Showing post:** 9

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### Author: ![gwolff](https://avatars.discourse-cdn.com/v4/letter/g/a88e57/32.png) [@gwolff](https://discuss.blues.com/u/gwolff)
#### Post date: [August 16, 2021, 8:52pm UTC](https://discuss.blues.com/t/raspberry-pi-i2c-notworking/372/9 "2021-08-16T20:52:17Z")

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I was able to reproduce the issue at last. Turns out this was a known issue in the firmware version.

I recommend updating the Notecard to the latest available firmware version on Notehub following the process here:

> **[Notehub Walkthrough - Blues Developers](https://dev.blues.io/notehub/notehub-walkthrough/#manage-notecard-firmware)**
>
> A guide to familiarize you with your project in Notehub.io

You can view an older version of this topic here:

> [@Python2 I2C commands fail](https://discuss.blues.com/t/python2-i2c-commands-fail/96):
>
> serial-example.py works fine when toggling the Notecarrier Hat switch for UART to ON The issue is when trying over I2C i2cdetect -y 1 shows that port 17 is available Using the GitHub unchanged notecard.py and i2c-example.py the response is “Transaction error: line 49: Exception: notecard request or response was lost” This appears right after the “Performing transactions”, so in the line rsp = card.Transaction(req) req is {“req”:“card.status”} but the same error occurs when switching to {“…

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