how to extract code for a copy protect scenix apple75k v14 compatible?

[d-signer]

I have apple75k it works fine with v14, it have a sx ubicom , I am trying to extrac the code with a fluffy programer but is copoy protect.

Have you any idea to extract the code??

[crans]

cut the top off and photgrap the silcone is one way but im no pro .. any one else know?

[Ex-Cyber]

I'm no pro myself, but I've read a few things written by pros... some bits of this are speculation so take with a grain of salt...

SX devices are flash-based, so visual inspection won't work. What you would need to do in a situation like this is depackage the chip and figure out a way to erase only the so-called "fuse" settings (of course on a reprogrammable device, these are only flash/EPROM cells and not actual fuses), where the protection setting is enabled.

Bunnie has an article somewhere on his blog where he talks about doing this to a PIC. The short version is that the PIC had metal shielding over just the "fuse" area but not the program area. The hole in this protection is that there's a silicon dioxide layer between them. Silicon dioxide is basically glass and at the appropriate angle light will primarily reflect inside the layer rather than just passing through it. So bunnie cut a tiny piece of electrical tape to protect the program area and stuck the thing in an ordinary EPROM eraser at the appropriate angle.

Your mileage may vary, of course; SX is not PIC, and bunnie is basically a genius so he might not have posted some little things that are obvious to him but that you would need to know to attempt doing this. I may also have remembered it wrong but the basic ideas should be correct.

[d-signer]

perhaps more much dificault to me these kind of work, i will try.

also, there is more people than summone with a v14 compatible code

http://www.cipcipstore.it/php/catalogo.php?art_code=181

[woba]

megasx2 (ubicom sx)v14 the code is protect.
pasqual cip cip is a furbbacchion friends.
exuse me for the giargianais linguage

[D@rio]

yes very very furbacchion

[E=ps2]

you can try to etch the package and solve it with hcl.

[li_gangyi]

you might wanna read more here
http://www.cl.cam.ac.uk/~sps32/mcu_lock.html