Becker BE754 code, unlock

[bruno504]

Anyone found solution fo this classic radios?

[josfiala]

Hi, I have the same radio. I replaced the battery and tried to load different dumps, but I don't have the right one. The radio still has only - - - -.
Can anyone help?
Thank you.

[richard2650]

Has anyone found a good bin file for the Becker 754 radio. In need of a working file.

[josfiala]

HI, try this : https://www.dropbox.com/s/3e6noelqll...01002.bin?dl=0
Please let me know if it helped.
Josef

[piotrbinda]

Hi, anyone successfully unlock this radio with eeprom ie. 24c02 ?

[bruno504]

Anyone found solution, that passes for getting original firmware in the ram of the radio, or decoder tool reverse engineering?

[aersnet19]

hello everyone,
i'd like to know how to unload the dumb file ? and all day i've been truing but i can't get it, but iy just throws me out every time i try

[lsabg]

Hello,
Anyone found a solution or working dump from RAM PCF8571? I will try to write it to 24C01.
May by this :
https://www.youtube.com/watch?v=J0fxASPGSw8Regards!
is the best solution for now..
From here : https://www.dropbox.com/s/3e6noelqll...01002.bin?dl=0 arhive have got errors.

[Steve Stargate]

PCF8571P is EPROM and not EPROM!
She must be energized all the time.
For this, there is a battery inside the radio.
When the battery is discharged, the dump in the PCF8571P is erased by itself.
Need a dump from the working radio
Read without disconnecting the battery .
In the non-working radio, replace the battery.
To contacts 4 and 8 PCF8571P be solder battery 3.3V.
To the 4, 5 and 6 buses, connect the GND, SDA. and SCL from programmer
Programing PCF8571P read with the working radio dump.
Do not solder the battery to disconnect the programmer wires from the PCF8571P.
Also, without soldering the batteries, the PCF8571P should be soldered in the radio and only then it can be repaired

I am sorry ( google translator )

Hi.
Which Part should be used in programmer? 24c01?
THX