# I2C problem showed up after reflashing the same firmware

**URL:** <https://community.particle.io/t/i2c-problem-showed-up-after-reflashing-the-same-firmware/7299>\
**Category:** Troubleshooting\
**Created:** [October 3, 2014, 3:37pm UTC](https://community.particle.io/t/i2c-problem-showed-up-after-reflashing-the-same-firmware/7299 "2014-10-03T15:37:31Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![bko](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/bko/32/20704_2.png) [@bko](https://community.particle.io/u/bko)\
**Post date:** [October 3, 2014, 4:27pm UTC](https://community.particle.io/t/i2c-problem-showed-up-after-reflashing-the-same-firmware/7299/2 "2014-10-03T16:27:38Z")

</div>

Hi @dorinelfilip

Please see this thread

> **[i2c changes from july? need code analysis help](https://community.particle.io/t/i2c-changes-from-july-need-code-analysis-help/7231)**
>
> I’ve decided to modify a code for an pretty old project, but after updating it with fresh spark.cli it now fails I’ve reverted code changes, compiled again and it still not working v60 - old binary compiled at 14.07.2014 - works v67 - same code,...

This is fixed but the fix has not made it to the web IDE yet. If you build your code locally you can use the fixed code.

---

_[View the full topic](https://community.particle.io/t/i2c-problem-showed-up-after-reflashing-the-same-firmware/7299)._