Electronics > RF, Microwave, Ham Radio

"Hack" an Commercial Airline Groundstation Radio?

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uncle_bob:

--- Quote from: Lord of nothing on June 05, 2016, 10:33:05 pm --- :-//

--- End quote ---

Hi

You use a custom program that uploads the code to the MCU after doing some custom validation against the firmware already in the MCU.

Again, fairly basic firmware stuff. Not something that most people do every day.

Bob

Lord of nothing:
So let me try it.  ;D
What kind of Hardware does I need to read the Data out?
I ordered today an Tool to get the Chip out.  :-+
When I learn something from the Videos never use an Screwdriver for.  :scared:

uncle_bob:

--- Quote from: Lord of nothing on June 05, 2016, 10:37:31 pm ---So let me try it.  ;D
What kind of Hardware does I need to read the Data out?
I ordered today an Tool to get the Chip out.  :-+
When I learn something from the Videos never use an Screwdriver for.  :scared:

--- End quote ---

Hi

Ok, so first step:

Identify the chips on the board and take a look at how they are interconnected. That will give you a basic idea how the code may be accessed and where the information you are looking for may be stored. Possible locations:

1) EEPROM
2) Outboard FLASH
3) Outboard mask ROM
4) Re-loaded into RAM after pull from external memory
5) On the MCU

It's a pretty good bet that what you are after (license keys)  is not in the MCU it's self. Of course without ever seeing the board or the radio, this is all 99% guesswork.

Bob

Lord of nothing:
How can i see this?

uncle_bob:

--- Quote from: Lord of nothing on June 05, 2016, 10:52:08 pm ---How can i see this?

--- End quote ---

Hi

Open up the radio and make a list of all the major chips.

Look up each chip and see what sort of chip it is.

Bob

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