Datsun

When I got my card from PacParts it copied just fine, no issues at all. Expensive but I got my unit running again. I thought that I had posted somewhere on here the steps I used to copy, and it was using the dd command.

I am no computer guru just an old man trying to keep my stereo working. My “guess” is that the card you got has already been in a unit and now it is locked by the stereo unit. It sounds like you have nothing to lose by putting it in your unit to see if it works. So far you have done better than I did, I ordered a card off eBay and never got it, even though it said it was delivered, maybe it was just not to me at least you got something I got nothing for my money but screwed.

I have seen some people here that say they know the password code to unlock the sd card, but I do not know it and I don’t even know how to unlock it even if I did. There are far smarter people than me that show up from time to time that could maybe help, but unfortunately that person is not me. Sorry I cannot help any further, that is all I know.

If you pulled this card from a working 4200 then the card is password protected. Once you place the stock sd card in a unit and turn it on the unit it will protect the card.

There is nothing that I know of that can be done once the sd card is locked. Someone else can chime in if they have an answer.

Once the sd card is placed in a unit and turned on the card becomes password protected. There are people here who say they know that password but I do not. Even if I did, I do not know how to unlock the card. Maybe others can help.

I believe that both my usb and sd card are formatted in FAT32. My usb is only 128gb, can’t remember the size of the sd card. Both work fine.

Good Luck brother. Hope it works for you since it did for me.

Once you put it in your unit it will lock the card and you won’t be able to do any other thing with it like create an image.

When I received my new sd card, I used Linux Mint with an external card reader that plugged into a usb port to create an image file that I then put that image on a Sandisk 16gb card. Windows will not read that card because it is an android program. Now I suppose you could get some program for Windows to read that card but I am no computer guru so I don’t know Linux Mint work great for me.

I did not have this issue when I did mine. Is it possible to try another touch screen from a friend to see if it reacts the same ?

May or may not be related. When I got my 4500, I purchased the parking brake bypass and installed it on my unit. Worked great then on down the road eventually I started getting notices on the unit that the parking brake was not engaged, even if it was a function that didn’t need it engaged. Nothing had changed, I hadn’t moved the unit or the wiring. Then other things started happening untill the unit didn’t work any more. Turns out it was the firmware issue. I replaced the firmware and now all is well. Hope that is not the problem but something to think about.

Try this.

Ah ha. I guess I missed that posting.

It is my understanding that the unit password protects the cards and nobody here that I am aware of knows the password. I’m pretty sure I seen a posting here of someone who used, I believe it was Disc Manager, to re-format the cards.