TCL L28D2710PSA Service Manual page 20

3，After updating , the set will reset automatically.
8, Project ID selecting
1) Press the Menu button of remote control, then select Contrast item
of Picture submenu; press 1,9,5,0 consecutively, there you go the
Design Menu.
2) Select the SERVICE MENU item, press OK and RIGHT button of the remote
to enter submenu,
3) Select the PROJECT ID item, press OK or RIGHT button of the remote
to enter the submenu;
4) Press the right or left button of the remote to select the ID you want;
5) After ID selection, press MENU button of the remote to exit DESIGN
MENU.
6) Finally, do AC power on/off.
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