I have ONN Roku TV. My home screen is lockedked

Hi, factfinder7 

Greetings, and welcome to the Roku Community.

We noticed your post where you mentioned that your Onn Roku TV seems to be locked, and we're here to assist. For this issue, there is no feature to lock a Home screen on a Roku device or a Roku TV. Thus, we'll provide you with troubleshooting steps to resolve the issue. Kindly follow the steps below:

Remove the power cord from your Roku device for at least 10 seconds before plugging it back in. If reaching the power cord is inconvenient, you can also use the instructions below to perform a system restart from the Settings menu

1. Press Home on your Roku remote
2. Scroll and select Settings
3. Select System
4. Select Power. If you do not see a Power submenu, skip to the next step.
5. Select System restart

In either case, your Roku device will complete a system restart and hopefully return to normal operation after a moment. 

In addition to the system restart, please make sure that your Roku TV remote is functioning well by ensuring that the battery is well-conditioned.

Hope that you find this information useful, and let us know on what you find out.

Best wishes,
Kash