Hi @MarcoP
Teams tag is mainly focused on the general issue of Microsoft Teams troubleshooting. According to your description, your question is not in our support scope. Thanks for your understanding and patience.
The following suggestion is for your reference:
Yealink EXP50 and MP58 devices may have issues with the order of the contact list and font size changing by themselves in certain circumstances. According to the product manual and user feedback, this situation may be related to the device's firmware version or settings.
It is recommended that you try the following steps:
- Check firmware version: Make sure your device is running the latest firmware version. You can visit Yealink's official website to download the latest firmware update.
- Restore factory settings: If the problem persists, you can try restoring the device to factory settings and then reconfigure the contact list and font settings.
- Contact technical support: If the above method does not work, it is recommended to contact Yealink's technical support team for further assistance.
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