Are you trying to or CTCSS tone?

The Weierwei Vev-3288s manual provides guidelines on how to maintain and repair your device, including:

The Weierwei VEV-3288S is a very capable and surprisingly versatile radio, suitable for a wide range of users from amateur radio enthusiasts to professionals needing a simple, reliable communication tool. While the original manual can be challenging to locate or may be somewhat basic, this comprehensive guide should equip you with the knowledge needed to program, operate, and maintain your device. The VEV-3288S remains a popular choice because it strikes an excellent balance between robust construction, powerful performance, and accessible operation, proving that you don't need to break the bank to own a high-quality two-way radio.

Used to step through frequencies, memory channels, or menu settings. 3. Core Operational Modes

Power on and observe LEDs; ensure green steady within 10 s.

Weierwei Vev-3288s Manual