I’ve had varied issues using SD cards as storage extension for my FP2. The system is usually updated as soon as updates become available, write-load is low and so far, I’ve chosen cards quite large in size to avoid deleting data and overwriting the empty space.
First, I was dumb enough to format an SD as “internal” and then put another SD card in for a few minutes - data lost, lesson learned. External only hence.
Then, when I updated to Android 6, I lost the ability to write on my SD. It continued operating read-only for a short while until it became non-readable, this time even to my PC (linux dmesg/fdisk don’t detect it any more). At the time, it was not even 5 months in use and had about 80GB of data on it; It was removed from the phone only twice during its short lifetime. Data lost, again.
This was the SD in question: SanDisk Ultra 200GB microSDXC up to 90 MB/Sec, Class 10. So no more SanDisk for me.
It might be the manufacturers fault. It might also be the firmware not being optimized for use with this USH speed class. Or something else. All I know: I don’t want to loose data on this Phone yet again. Please don’t get me started on backups. I’d like a reliable SD card, price is no criterion.
So, I’m asking you: Which SD card have you been using in your Fairphone for over a year without issues? Thanks for suggestions!
Stats so far…
SDXC Class 10, UHS I:
- SanDisk Ultra 64GB 80/?mbs… satisfied 1 > 2 years, 1 < 1 year
- SanDisk Ultra 200GB 90/~15mbs… datagrave 1 < 6 months
Accusing the card is only fair if…
- no rough handling (physical, sun, moist, static)
- no janking out while mounted (SDXC) or writing (all SD)
- reasonable number of write cycles (amount of data written)
- death occured within few weeks to less than 24 months of FP2 use