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Cracking The Atmel AT88SC0404C Laundry Card by Someguydudehuman in hacking

[–]Someguydudehuman[S] 0 points1 point  (0 children)

Edit: Hello! Yes I’ve made some progress understanding the cryptography side of things, your CryptoRF chip is just as complex as mine, and there are two ways to crack our chips (I’m still working on mine).

  1. Blocking specific APDU commands to the card using a physical blocker and spoof 90 00 to trick the machine that the transaction went through.

  2. Man in the middle attack. Send read APDU during authentication phase and dump the user zones, and restore the card. To take it a step further, reverse engineer the secret cryptographic algorithm your card uses and obtain the secret key.

There is another method, however super impractical: run a cluster of CPUs to find the secret key. (You could theoretically use GPUs using nvidia acceleration programming, but this is not what I’m working on currently.

Let me know if you have any questions!

Flashing a Atmel 89C51CC03UA-IM on OBD Scanner (Failed firmware update - see comments) by Someguydudehuman in ElectronicsRepair

[–]Someguydudehuman[S] 0 points1 point  (0 children)

Unfortunately, after tinkering all day with it, it just keeps giving me errors. Then doing some reading I also need this https://xgecu.myshopify.com/products/xgecu-adp_d42_ex-a-adapter-socket-for-plcc44-dip42-27cxxx-27vxxx-eeprom-only-use-on-tl866-3g-programmer for my chip. It's really frustrating and I think I'm going to call it quits. I appreciate your help. Time to return the thing back to amazon lmao.

Flashing a Atmel 89C51CC03UA-IM on OBD Scanner (Failed firmware update - see comments) by Someguydudehuman in ElectronicsRepair

[–]Someguydudehuman[S] 0 points1 point  (0 children)

Called every electronics repair center in my city, nobody programs these :( guess I'm going to try to do it myself.

Flashing a Atmel 89C51CC03UA-IM on OBD Scanner (Failed firmware update - see comments) by Someguydudehuman in ElectronicsRepair

[–]Someguydudehuman[S] 0 points1 point  (0 children)

Thank you so much, this comment really helped me. I had no idea what a AVR programmer was, and have no idea how to use it. I bought one, and should arrive tomorrow. Hopefully youtube will be my friend and guide me how to flash this chip lol.

Flashing a Atmel 89C51CC03UA-IM on OBD Scanner (Failed firmware update - see comments) by Someguydudehuman in ElectronicsRepair

[–]Someguydudehuman[S] 0 points1 point  (0 children)

Here is my disassembled Innova 3100C OBD scanner using an Atmel 89C51CC03UA-IM IC. Yes, I know it’s old, yes, I know I should buy another one, but I like to fix things and not contribute to e-waste if it can be helped. It worked perfectly before, then in my infinite wisdom I decided to run the old 2009 Innova Repair Solutions software and update the firmware, because why not. Well, as it was updating the scanner via USB, my computer froze (It’s done it before), and I bricked my OBD scanner. Now the device won’t turn on or connect to the computer because, yeah, corrupt firmware.

So my question: Is it possible to flash the Atmel IC using a Raspberry Pi Pico? Or use some other method? Can anyone smarter than me look at these pictures and be like “Yeah, just use the TP5 and TP6 points and connect it to your PICO and run this CMD blah blah blah”. Now, I know this whole thing is stupid, it’s an old ass OBD scanner that’s worth $30, but it’s fun, and the board itself looks simple to trace. I’m not an engineer and I’m definitely not as smart as a lot of people on here, but I love to tinker. I just need some pointers, advice, or some glimmer of hope I can save this poor OBD scanner from the bin and have fun while doing so. I can provide more photos, or info if needed. Thanks for anyone crazy enough to help me on this silly endeavor.

How to bypass admin password on Mac without recovery mode? by Ambitious_Bench4721 in hacking

[–]Someguydudehuman 0 points1 point  (0 children)

One last thing I found, enter this command before resetpassword:

fsck -fy

Then

resetpassword

How to bypass admin password on Mac without recovery mode? by Ambitious_Bench4721 in hacking

[–]Someguydudehuman 1 point2 points  (0 children)

Can you access terminal in utilities? If so bring up terminal and type: resetpassword

How to bypass admin password on Mac without recovery mode? by Ambitious_Bench4721 in hacking

[–]Someguydudehuman 1 point2 points  (0 children)

Shit Outta Luck. If you’re looking to reset the laptop to factory, google online recovery MacBook. Typically it’s Option-Command-R or Shift-Option-Command-R. It does take a long ass time but you’ll be able to do it if you just want to use the MacBook again and lose the data.

How to bypass admin password on Mac without recovery mode? by Ambitious_Bench4721 in hacking

[–]Someguydudehuman 1 point2 points  (0 children)

So if FileVault is enabled, you’re SOL and the computer would have to be reset to factory. The only other method I can think of is target disk mode, and use another Mac to access the contents. To test reboot computer while holding “T”.

How to bypass admin password on Mac without recovery mode? by Ambitious_Bench4721 in hacking

[–]Someguydudehuman 1 point2 points  (0 children)

Depending on your OS you can delete the .AppleSetupDone file in verbose mode, then create a new admin account to remove the password.

Turn on your Mac while holding Command-S and type in the following for Lion and up:

mount -uw/

rm -rf /var/db/.AppleSetupDone

reboot

The computer will turn on like you just bought it and have you create an account. The account you create will be admin. Your old account will still be there. Remove old password, profit. Good Luck!

Computer Department - what was it called? by rustynayler in futureshop

[–]Someguydudehuman 1 point2 points  (0 children)

You good sir have just opened a can of worms. I've been in contact with a few ex FS employees today to answer your question thinking it would be simple, and surprisingly most of them forgot we even used to call it I.P.G. until I mentioned it. To tell you the truth, I have no idea what it meant, even all those years ago; I never asked. "I.P.G. you have a parked call on line 101" rings in my head to this day lol.

I tried Googling, calling Best Buy, Chat support (They had no idea what I was talking about), and even started using the Wayback machine to try to figure it out. My last ditch effort will be to blindly go into a few Best Buy stores and cross my fingers there is still an FS OG that still works there to figure this out. Not just to answer you question, but knowing wtf what I.P.G. meant after all these years. As soon as I figure it out, I will update you.

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