To delete a YouTube channel on an CITYCALL I8550, follow these steps:
Open the YouTube app on your phone.
Tap on your profile picture in the top right corner of the screen.
Tap on the gear icon to access your channel's settings.
Tap on "Manage your Google Account."
Tap on "Data & personalization" on the left side of the screen.
Scroll down and tap on "YouTube."
Tap on "Delete channel" under the "Channel" section.
Read the warning and tap on "Delete my content."
Enter your Google Account password and tap on "Next."
Tap on "Delete channel" to confirm.
Note: Deleting your YouTube channel will also delete all of the videos and comments associated with it. This action is irreversible, so make sure you really want to delete your channel before proceeding.