SanDisk microSD memory card is write protected or locked

I got this issue with a brand new 32GB SanDisk Ultra microSD Class 10 when trying to copy data with my laptop:

"The disk is write-protected"

It took me about 20 minutes to find out why.

I could save images to the the microSD when inserting it directly to my smartphone (without the microSD adapter.

The root cause: The lock switch on the adapter is loose, it may slide to Lock position when I insert it to my laptop's SD slot.

Hope this sharing can save you time!

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Linux command: lspci - list pci devices tuyendq@ubuntu001:~$ man lspci NAME lspci - list all PCI devices SYNOPSIS lspci [options] DESCRIPTION lspci is a utility for displaying information about PCI buses in the system and devices connected to them. By default, it shows a brief list of devices. Use the options described below to request either a more verbose output or output intended for parsing by other programs. If you are going to report bugs in PCI device drivers or in lspci itself, please include output of "lspci -vvx" or even better "lspci -vvxxx" (however, see below for possible caveats). Some parts of the output, especially in the highly verbose modes, are probably intelligible only to experienced PCI hac...

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