Hello bauiss,
Thank you for reaching out to Apple Support Communities, and we'll be happy to help in any way we can. We understand you're having issues with the sound on your Beats Studio Buds. To start, try the steps listed here to see if they resolve the issue: Sound troubleshooting – Beats headphones and earphones
If those steps don't help, try resetting them as well: Reset your Beats Studio Buds
If the issue persists, it looks like your iPhone needs to be updated. Before you begin, make sure there is a backup for her data as described here: How to back up your iPhone, iPad, and iPod touch
This article has great steps for troubleshooting issues with updating over Wi-Fi: If your iPhone, iPad or iPod touch won’t update
If after taking those steps you're still having trouble updating, we recommend updating through your computer as described here:
For PC: Update software on iPhone, iPad, or iPod touch in iTunes on PC
For Mac: Update your iPhone, iPad, or iPod touch with the Finder
If you are unable to update or restore, please follow the steps listed here: If you can't update or restore your iPhone or iPod touch
If it occurs after updating, check for interference that could be causing it as described here: Resolve Wi-Fi and Bluetooth issues caused by wireless interference
We hope this helps.
Cheers!
