Log into your Roku account at https://my.roku.com.
Scroll down to the "My Linked Devices" section.
You can edit the data under the Name and Location columns. Click on the "pencil" icon at the left end of each field to edit the entry.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X