Blaupunkt SQR46 Bremen Code 7646898010

[ikaruga]

Hi,
is there a way to calculate Code from Serial? Got a quite uncommon one.
Modell: 7646898010
SN: W4 468 374

Like to get the Code not only deactivate the request on the hybrid ceramic.

[audio]

Hi!

If you choose the no code option, add 5 volts to the "5V" point on the image via a 100 Ohm ...

wbr

[ikaruga]

Thanks mate but this one i know and it works only it shifts the frequency about 0,1 MHz.
I like to get or change the code! ;)

[audio]

Hi!

Put a good image of the hybrid here...

[ikaruga]

hey,
here we go.

[audiopoint]

maybe help

[audio]

look at the picture and no code

[ikaruga]

Yes friends i know. No Code is no Problem. You can get 5V from Pin 33 also it's nicer...
My question is, if it's possible to read or change the code.

597132

[ikaruga]

So the only way is to deaktivate the Code? :boring:

Didn't find a thing about reading this hybrid?!

[sub3hrs]

Hi,
there is a way to erase the code. After doing it the stereo is uncoded. You can code it again with a code of your choice (4 digit). There is a slight risk of damaging the cpu/eeprom. And what happens is that the stereo loose all programmed data, including the if programming. This programming has to be done new, than the stereo work like before. If the if programming is not done the displayed frequency will be wrong, possibly the automated search won't stop on the stations.

[MatzeN]

Hello.
this process does not work for me. I have a Bremen Sqr 46.
There is no reaction on the display. just ----
where could the error be?

[treran21]

I hope is help you

[MatzeN]

Hello thanks, but i have found the "5V Pin" but its no Reaction.

I´ve get from stabi 5V to this and get on and of the stereo but no reaction.

I found another post that deals with the "6SaFe" problem with audi Gamma 3 and similar models.
There the 5V without 100R are connected to the processor. Maybe I should try that ...?


@@ I solved it .... 5V with 100 ohm resistance from stabi did not work.but 5V without 100R from pin 33 runs


no idea why, the resistance was ok.
now everything is running.


Thank you all

[fork]

Hey Guys,

I signed up to this forum for this thread.

I've a SQR46 with Code Protection too. And of course don't know the code.

@treran21 Your dump: I've looked it up in a hex editor. It it real that it starts with 0x12 0x00 is this also the position of the code?

Is there a posibillity to dump the eeprom of mine too? I've access to chip programmers and µc's.

I've also SQR 46s without Code Protection. Maybe I can read one and write it back to the other?

Am I right that with the 5V "hack" there is a chance of destroying something?

Greetings!

[C110]

Hello thanks, but i have found the "5V Pin" but its no Reaction.

I´ve get from stabi 5V to this and get on and of the stereo but no reaction.

I found another post that deals with the "6SaFe" problem with audi Gamma 3 and similar models.
There the 5V without 100R are connected to the processor. Maybe I should try that ...?


@@ I solved it .... 5V with 100 ohm resistance from stabi did not work.but 5V without 100R from pin 33 runs


no idea why, the resistance was ok.
now everything is running.


Thank you all

Hi!

After doing this trick, did you have any issue? Like wrong frequency or other problems?

Thanks.

[qs1]

Hi!

After doing this trick, did you have any issue? Like wrong frequency or other problems?

Thanks.


Hi MatzeN and C110

I would also be very very interested in that. Just don't want to destroy anything on my Blaupunkt SQR 46 Bremen. :)

[qs1]

Finally it worked for me like that (I just took a 57R from my stock instead of 47R). Attention: If I permanently connect +12V to the input pin for battery plus AND ignition, "----" is still displayed and no sound.But if I leave the +12V permanent input pin empty and only connect +12V battery voltage to the +12V ignition input pin, then it works fine, no pin code needed and radio memory is fine.
cheers
857245