My toddler pressed something on the remote and the TV has locked us out. All that displays is a blue screen with a red padlock image in the top left hand corner. No buttons on the remote control or television set will work now except the on/off switch. We tried pressing every button on the remote and tried turning the power off at the main for a couple of hours to reset the TV but it still will only show the lock.
I have a Harmony (now logitech) 688 and 550 remotes and I successfully unlocked my friends Hisense TV when I added the Hisense TV to the remote's device list. Either buy a better remote or find a friend or local TV shop that has one so they can unloack it for you. Beats having to buy a remote from China and waiting 3-4+ weeks.
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The Red Lock indicates that it has been Child Locked, this could be done by
accidently pressing child lock. On your remote control there is a MUSIC button,
to turn off the red child lock PUSH & HOLD the button. The red lock does not
go off with a qucik push. You need to Push & Hold The music button for about
Somehow in handling the remote control I pushed a button or combination of buttons and now have a blue screen with a lock symbol in red in the top left hand corner. I've tried turning the tv off, and unplugging it, as well as a combination of buttons on the remote, but it still is there. What do I need to do to remove the lock?
Press MENU to show the on-screen
Press VOL+ or VOL- to highlight SET.
Press CH+ or CH- to highlight PARENTAL CONTROL. Press VOL+ or VOL- to display the
SECRET CODE screen.
Press VOL+ (on the remote) and the CH+ button on the front of the TV at the same time. Press the Number buttons to enter a four-digit code. The code will appear on the screen as you enter it. The code "0000" is the default of the TV. If you have not set up a code previously, then "0000" is the code.You cannot use "0000" after you set your own code (unless you reset the code to "0000").
Press MENU to save the code.
Hope this helps. :}
HERE IS A LINK TO THE USER MANUAL: http://www.p4c.philips.com/files/2/27ms343s/27ms343s_dfu_aen.pdf
It sounds to me like a child lock function, which is usually what the screen + padlock is on TVs. Usually your original remote would have a button / sequence to unlock the mode. If you still have your original remote, look for a child lock button or refer to your remote manual (and/or TV manual for the child lock feature) to unlock the mode.