Sounds like something happened during either the download or the firmware install process.
You are going to have to use an SD card to complete the update.
- Power the AEROS down.
- Go to Aeros firmware 3.1.x
- Scroll to the top of the page (press your keyboard home key)
- Read the instructions and click on Download this file to download the latest version of the firmware
- Follow the guidance for “If you have trouble downloading over WiFi…”
Note: a new SD card is already properly formatted to MS-DOS (FAT32) so no need to format the card
If you still have problems, contact Support, support@singularsound.com via e-mail