Kenwood kdc bt6544u code

[Giorgiocasanova]

Hello
I changed my car battery and now the radio is asking for a code I don't know. It says enter code and asks a 4 digit number. I guess I confirm the number pressing favorite on the display.
How can I read the eeprom so you guys can help calculating the correct code? How can I calculate the code myself?

There are some numbers on the tag at the top of the unit
Y21-7102-75
KE1557X0203392

[koshavova]

Hello
I changed my car battery and now the radio is asking for a code I don't know. It says enter code and asks a 4 digit number. I guess I confirm the number pressing favorite on the display.
How can I read the eeprom so you guys can help calculating the correct code? How can I calculate the code myself?

There are some numbers on the tag at the top of the unit
Y21-7102-75
KE1557X0203392

it looks like this
https://www.youtube.com/watch?v=PXwvGdLHLiU

[Giorgiocasanova]

20200318_160007.jpg

I'd like to contribute here how to connect the EEPROM to an arduino nano for the read.
Then just follow https://www.instructables.com/id/Rea...EEPROM-Using-/

[Giorgiocasanova]

Hey, just read the eeprom!
How can I find the code myself?

[Zann]

Hey, just read the eeprom!
How can I find the code myself?

9999 ?
..........

[masterskay62]

Hey, just read the eeprom!
How can I find the code myself?

Hi.
Try...........9999

[Giorgiocasanova]

The code worked!

I tried all 10.000 combinations during the last months, none worked.
Including 9999.
Tonight I tried holding the knob (instead of pressing the memory button) for 5 seconds, and cha-ching!

Thanks guys

[Giorgiocasanova]

9999 ?
..........

So how did you find the code 9999?

[Zann]

So how did you find the code 9999?

It's complicated.

[Giorgiocasanova]

It's complicated.

Ahhh c'mon... I'm no newbie, CS graduate here

[shooting]

Ahhh c'mon... I'm no newbie, CS graduate here

So work it out then like we did by ourselves

wbr

[Zann]

Ahhh c'mon... I'm no newbie, CS graduate here

Just for you