Talking about SD cards, the satnav on my Volkswagen used a full size SD Card. I bought an up to date SD card - which is not read by the system in the car. It turns out there is something called CID Locking - the manufacturer is encoded as a CID number on the SD card. Any other type of SD Card even though it has a valid filesystem does not have the manufacturer CID and is rejected.
I read that you cannot use a USB card reader to set or reset the CID. Does anyone have ideas? Desktop PCs with 'real' SD Card readers must be rare as hens teeth these days. ps. I have used a USB SD Card reader under Fedora Linux On Tue, 24 May 2022 at 12:24, James Dutton via GLLUG < [email protected]> wrote: > Flash devices go read only when they detect themselves that they have a > fault. > > SD cards are not particulary reliable. > So my best guess is that this has happened to your sd card. > -- > GLLUG mailing list > [email protected] > https://mailman.lug.org.uk/mailman/listinfo/gllug >
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