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How to unlock Grundig T55-1020 pincode

Grundig T55-1020 -have forgotten pincode,any ideas? when you turn the tv on it comes up with a blue screen asking for a 4 digit code which i have forgot.

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  • martinplaic Mar 15, 2009

    Hi, i have the same problem, but i know the code. I was given the tv (with code). The problem i have is, when i have entered the code, how/ what do i press to get the tv to accept?
    Your help is appreciated,
    Martin

  • Anonymous Apr 10, 2009

    I CAN'T UNLOCK MY TV SET

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  • 372 Answers

Hi.

Unfortunately there is no magic code that you can enter to undo the pin code lock.
This is how its done but you will need A repair shop to do it.

Place set in to protect by entering any sequence of numbers 3 times,
Connect a 390ohm resistor between w129 (ground) and pin 56 of the micro,
Press button 7 on the remote for a minimum of 6 secs.
And thats it unlocked.
Sorry its not a simple fix.

Chris..

Posted on Nov 26, 2007

  • grfart Oct 26, 2010

    thanks

  • alinhiemesch
    alinhiemesch Sep 01, 2012

    where is the w129 ground located? please help me cuz i dont know where it is and i have a tv locked

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