1. First, open the setup menu of the device. In most Android devices, you can find the "Settings" icon in the application list.
2. In the setting menu, find the options related to "Accessibility" or "Accessibility". Different devices may have different names. You can use the search function to find this option in the settings menu.
3. After turning on the barrier-free option, a list of installed barrier-free services will be displayed. Locate and click the "Tu Tu Music" option.
4. On the accessibility page of Tu Tu Music, you may need to turn on the "Enable Accessibility" option first, and then turn on the accessibility permission to use Tu Tu Music.
Please note that the above steps are only general instructions, and the specific steps may be slightly different depending on the device and operating system version you use. If you encounter difficulties in operation, you can refer to the user manual of your equipment or contact the customer service department of the equipment manufacturer for help.