TCL L32E4200 Service Manual page 18

第 11 页共 11 页
Upgrading method 1
2）
1，using the remote, enter the "Picture" submenu of the OSD; choosing
the "contrast" item and press 9,7,3 and 5 in series, Factory Menu will
appear in the left top of screen.
2,Select the "USB UPDATE" item , press left or right key to enter the
update box;
3,Select "YES" of the dialog box and press OK button to start the update,