# Upgrade to 328

**URL:** <https://community.sparkfun.com/t/upgrade-to-328/18116>\
**Category:** Arduino\
**Created:** [November 10, 2010, 3:46am UTC](https://community.sparkfun.com/t/upgrade-to-328/18116 "2010-11-10T03:46:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![brainwav](https://avatars.discourse-cdn.com/v4/letter/b/b782af/32.png) [@brainwav](https://community.sparkfun.com/u/brainwav)\
**Post date:** [November 10, 2010, 3:46am UTC](https://community.sparkfun.com/t/upgrade-to-328/18116/1 "2010-11-10T03:46:03Z")

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Hi, I have an old Freeduino SB 2.1. It came with a Mega168. Somehow that 168 doesn’t work anymore so I bought a 328 that doesn’t have the bootloader on it. I have an AVR ISP programmer, but don’t know what bootloader to put on it. I’ve tried a couple hex files from the arduino/bootloader folders, but it doesn’t seem to work.

Any hints??

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<div class="post-metadata">

**Author:** ![brainwav](https://avatars.discourse-cdn.com/v4/letter/b/b782af/32.png) [@brainwav](https://community.sparkfun.com/u/brainwav)\
**Post date:** [November 10, 2010, 4:55am UTC](https://community.sparkfun.com/t/upgrade-to-328/18116/2 "2010-11-10T04:55:24Z")

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Figured it out using this site: [http://wolfpaulus.com/journal/embedded/arduino4](http://wolfpaulus.com/journal/embedded/arduino4)

Thanks anyway,

Me.