I have noticed troubles with my microSD card in my Android phone and when I tried to insert it into my Linux laptop, I get the following error in dmesg:
[ 247.588279] mmc0: error -123 whilst initialising SD card
[ 247.591314] sdhci-pci 0000:0d:00.1: Will use DMA mode even though HW doesn't fully claim to support it.
[ 247.648629] sdhci-pci 0000:0d:00.1: Will use DMA mode even though HW doesn't fully claim to support it.
[ 248.903044] mmc0: card never left busy state
[ 248.903051] mmc0: error -110 whilst initialising SD card
[ 248.907007] sdhci-pci 0000:0d:00.1: Will use DMA mode even though HW doesn't fully claim to support it.
Does this mean my microSD card is broken? How could it suddenly happen in my phone? Is there no way to recover eve partially the data on it?
Answer
Your SD card has died. This happens over time, anything like a drop or a lot of use can cause a SD card to die. I have had the same thing happen to me on a 16GB micro SD card used with my Raspberry Pi 2. It just stopped working one day.
The only way you could possibly get the data off the SD card at this point is to take it to a professional in the Data Recovery Field.
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