# Attempted upgrade to 1.0 blew up my box **URL:** \ **Category:** Support and Troubleshooting\ **Created:** [March 19, 2024, 1:26pm UTC](https://community.umbrel.com/t/attempted-upgrade-to-1-0-blew-up-my-box/15623 "2024-03-19T13:26:32Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![smolgrrr](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.umbrel.com/smolgrrr/32/2825_2.png) [@smolgrrr](https://community.umbrel.com/u/smolgrrr)\ **Post date:** [March 19, 2024, 1:58pm UTC](https://community.umbrel.com/t/attempted-upgrade-to-1-0-blew-up-my-box/15623/7 "2024-03-19T13:58:31Z")
Thanks for the extra context, in that case, you will need to reflash your SD card. Please see the steps below: > [@How to update to umbrelOS 1.0](https://community.umbrel.com/t/how-to-update-to-umbrelos-1-0/15575/1): > > ### For current Raspberry Pi 4 users on umbrelOS 0.5 > > To make use of umbrelOS 1.0’s new architecture, a re-install of the OS on your microSD is required due to significant under-the-hood changes. Specifically, there’s a new partitioning system designed for increased reliability of the OS. **Don’t worry; your apps and data stored on the external drive will remain intact.** > > How to update to umbrelOS 1.0 on a Raspberry Pi 4: > > 1. **Shut down your Umbrel** : Navigate to umbrel.local \> Settings, and shutdown your Umbrel. > 2. **Remove the microSD card** : After shutting down, unplug the power adapter attached to your Raspberry Pi, and remove the microSD card. > 3. **Download the new umbrelOS 1.0** : Download [umbrelos-pi4.img.zip](https://download.umbrel.com/release/1.0.0/umbrelos-pi4.img.zip) on your computer. > 4. **Prepare the microSD card** : Use an app like [Balena Etcher](https://etcher.balena.io/) on your computer to flash the downloaded umbrelos-pi4.img.zip file onto your microSD card. > 5. **Insert the microSD card** : Insert the newly flashed microSD card back into your Raspberry Pi. > 6. **Power up** : Connect the power adapter to your Raspberry Pi. Wait for 3-4 minutes, and visit [http://umbrel.local](http://umbrel.local) in your web browser. > 7. **That’s it!** --- _[View the full topic](https://community.umbrel.com/t/attempted-upgrade-to-1-0-blew-up-my-box/15623)._