Support for Blaupunkt Bremen SQR49 Code reset - GSM-Forum

maryann2014 · 07-20-2018, 08:09

Dear all,

I bought a Blaupunkt Bremen SQR 49 for my old Porsche. Unfortunately it is code locked and the code didn‘t come with the radio. I calculated a code out of the serial, but it didn‘t work.

Is there something like a master code anyone could provide me or is there a way to access the MCU?

Would be great to get answers and bring the radio to work.

Blaupunkt Bremen SQR49

BP9898A3790143
7 649 898 013

Calculated Code 7xx5 or 1xx5, both didn‘t work.

Regards
Maryann

**shooting@orange** · 07-20-2018, 09:11

Quote:

Originally Posted by maryann2014

Dear all,

I bought a Blaupunkt Bremen SQR 49 for my old Porsche. Unfortunately it is code locked and the code didn‘t come with the radio. I calculated a code out of the serial, but it didn‘t work.

Is there something like a master code anyone could provide me or is there a way to access the MCU?

Would be great to get answers and bring the radio to work.

Blaupunkt Bremen SQR49

BP9898A3790143
7 649 898 013

Calculated Code 7xx5 or 1xx5, both didn‘t work.

Regards
Maryann

Post dump for code

wbr

maryann2014 · 07-20-2018, 11:58

Sorry, but was is a dump? How should I proceed?

Regards
mary

**shooting@orange** · 07-20-2018, 12:01

Quote:

Originally Posted by maryann2014

Sorry, but was is a dump? How should I proceed?

Regards
mary

Best you take it to your local decoder

wbr

maryann2014 · 07-20-2018, 12:13

There is non. The device is 28years old....
Do I have to solder out the MCU und read/write it with a programmer or is there a way to decode it via code. That‘s what I want to know.

BR
Mary

**shooting@orange** · 07-20-2018, 12:35

Quote:

Originally Posted by maryann2014

There is non. The device is 28years old....
Do I have to solder out the MCU und read/write it with a programmer or is there a way to decode it via code. That‘s what I want to know.

BR
Mary

By dump only, not from serial

wbr

maryann2014 · 07-20-2018, 12:38

By dump you mean access to eeprom register, right?
I‘m Austrian and not used to the word dump in that context ;-)

BR

**shooting@orange** · 07-20-2018, 12:49

Quote:

Originally Posted by maryann2014

By dump you mean access to eeprom register, right?
I‘m Austrian and not used to the word dump in that context ;-)

BR

"Dump" is a world term for the contents of an electronic device which can store media
Can be eeprom eprom SD MCU or Flash, stored in Hex

wbr

maryann2014 · 07-20-2018, 13:22

All right, thanks a lot.
Will have a look to read out EPROM.

BR
Mary

**shooting@orange** · 07-20-2018, 13:25

Quote:

Originally Posted by maryann2014

All right, thanks a lot.
Will have a look to read out EPROM.

BR
Mary

Not eprom or eeprom, it is in the MCU

wbr

maryann2014 · 07-23-2018, 15:17

With which tool can I make a core dump? I found some advice to contact the MC68HC
11 with serial interface and bring it to bootstrap mode. But how can I read out the content of the internal eeprom where the code might be stored?

Thanks, Mary

**shooting@orange** · 07-23-2018, 15:28

Quote:

Originally Posted by maryann2014

With which tool can I make a core dump? I found some advice to contact the MC68HC
11 with serial interface and bring it to bootstrap mode. But how can I read out the content of the internal eeprom where the code might be stored?

Thanks, Mary

Need to purchase the correct programmer

wbr

maryann2014 · 07-23-2018, 15:53

Which one is the most common? Is there a free one available?

BR

masterskay62 · 07-23-2018, 15:56

Quote:

Originally Posted by maryann2014

Which one is the most common? Is there a free one available?

BR

Hi.
Motorola Cracker 6.2

**shooting@orange** · 07-23-2018, 16:13

Quote:

Originally Posted by maryann2014

Which one is the most common? Is there a free one available?

BR

There is no free programmer, you need to purchase one

wbr

07-20-2018, 08:09	#1 (permalink)
maryann2014 Junior Member Join Date: Jul 2018 Posts: 8 Member: 2852215 Status: Offline Thanks Meter: 0	Support for Blaupunkt Bremen SQR49 Code reset Dear all, I bought a Blaupunkt Bremen SQR 49 for my old Porsche. Unfortunately it is code locked and the code didn‘t come with the radio. I calculated a code out of the serial, but it didn‘t work. Is there something like a master code anyone could provide me or is there a way to access the MCU? Would be great to get answers and bring the radio to work. Blaupunkt Bremen SQR49 BP9898A3790143 7 649 898 013 Calculated Code 7xx5 or 1xx5, both didn‘t work. Regards Maryann Last edited by shooting@orange; 07-20-2018 at 09:07. Reason: Posting FULL codes

07-20-2018, 11:58	#3 (permalink)
maryann2014 Junior Member Join Date: Jul 2018 Posts: 8 Member: 2852215 Status: Offline Thanks Meter: 0	Sorry, but was is a dump? How should I proceed? Regards mary

07-20-2018, 12:13	#5 (permalink)
maryann2014 Junior Member Join Date: Jul 2018 Posts: 8 Member: 2852215 Status: Offline Thanks Meter: 0	There is non. The device is 28years old.... Do I have to solder out the MCU und read/write it with a programmer or is there a way to decode it via code. That‘s what I want to know. BR Mary

07-20-2018, 12:38	#7 (permalink)
maryann2014 Junior Member Join Date: Jul 2018 Posts: 8 Member: 2852215 Status: Offline Thanks Meter: 0	By dump you mean access to eeprom register, right? I‘m Austrian and not used to the word dump in that context ;-) BR

07-20-2018, 13:22	#9 (permalink)
maryann2014 Junior Member Join Date: Jul 2018 Posts: 8 Member: 2852215 Status: Offline Thanks Meter: 0	All right, thanks a lot. Will have a look to read out EPROM. BR Mary

07-23-2018, 15:17	#11 (permalink)
maryann2014 Junior Member Join Date: Jul 2018 Posts: 8 Member: 2852215 Status: Offline Thanks Meter: 0	With which tool can I make a core dump? I found some advice to contact the MC68HC 11 with serial interface and bring it to bootstrap mode. But how can I read out the content of the internal eeprom where the code might be stored? Thanks, Mary

07-23-2018, 15:53	#13 (permalink)
maryann2014 Junior Member Join Date: Jul 2018 Posts: 8 Member: 2852215 Status: Offline Thanks Meter: 0	Which one is the most common? Is there a free one available? BR