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I have a Blaupunkt Cambridge SQM 39 car stereo. I replaced my battery and when I turned to the unit back on, rather than saying 'code' across the screen, it just has 4 lines. I have read the manual and tried to hold keys 1 and 4 down simulaeneously then turning on, but nothing happens. I think it is because I have deactivated the code without the code being in first. Is there any way I can reverse this??

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SOURCE: I have a Blaupunkt Cambridge

Hi, think the solutions 1 and 2 didn't match your problems. You have to at first reset by, turn on the radio and wait for half an hour or more until the text "code" appear on the screen. Then you can enter your code. You have to press the "PS" button when you enter the keys 1 to 4. God luck. I had the same problem but this procedure helped me.

Posted on Sep 14, 2011

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2 Answers

Changed the battery. Type:Blaupunkt 520 No.92057951 U1E Bp8385#1712802


Good afternoon Nicole.

You don't have a specific question posted, but from the context, I'll guess that you changed your car battery and now your Blaupunkt stereo won't turn on and needs a code entered. You can look at a forum discussion here (
https://answers.yahoo.com/question/index?qid=20110726015503AAw8n1V ) that will step you through how to enter the code. This assumes you have the code card that should have come with the stereo (or the car if it's original to the car). Also note when the instructions talk about pressing the buttons, that it seems like it's pressing the button one more time than the number you want. That's because the first number to come up is Zero, so a 'One' will need two pushes on the button to toggle 'Zero' and then 'One' (I had the same setup in a stereo for my old Saab.)

If you don't have the card, don't just type in numbers at random. These stereos will lock you out after a certain number of failed attempts, and go into really long lockdowns if you wait out the first period. This will mean going to a dealer, where, likely as not, they'll hem and haw about how it's not working for them either, and you'll need to buy a replacement Blaupunkt.

Hope this helps, and good luck. If it does help, tagging the post as helpful would also be appreciated :-)

Nov 17, 2015 | Cars & Trucks

1 Answer

Hi - Blaupunkt Cambridge unit needs a code; BP1760N6882243 7641760512 Can you help?


Good Day!

Please try code 0967


don't forget to rate please..

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I have a Blaupunkt Cambridge SQM 39 car stereo. I replaced my battery and when I turned to the unit back on, rather than saying 'code' across the screen, it just has 4 lines. I have read the manual and...


Hi, think the solutions 1 and 2 didn't match your problems. You have to at first reset by, turn on the radio and wait for half an hour or more until the text "code" appear on the screen. Then you can enter your code. You have to press the "PS" button when you enter the keys 1 to 4. God luck. I had the same problem but this procedure helped me.

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