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Redmi Note 5/Pro

[Q&A] Micro SD card issues after Pie upgrade (bug?)

2019-06-11 06:38:23

3,372 72

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Zaqm | from Mi Note 3


Try to format the sd card while it's inserted in phone. Backup all data before that.
2019-06-11 20:59:50
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Advanced Bunny

Zaqm | from Mi Note 3


The card is fine, I extensively checked it on a Linux PC. I started by running fsck for exFAT (it can't fix, but it can detect errors) and I carried out other read/write tests. I'll try to grab a Win10 PC to run chkdsk and see if there's any problem in the exFAT file system, but initially there isn't any. It started right after the upgrade, in the first reboot I already saw the "checking card" message. It was also working perfectly fine right before, just minutes before I downloaded the upgrade, several GB backed up on the card in a normal amount of time and I rebooted afterwards to upgrade on a clean system, seeing no message and observing no delay. Bear in mind that while mobiles aren't any speciality, I'm a sysadmin mainly specialised in enterprise backup&recovery, consumer storage devices aren't unfamiliar to me despite its differences and I take precautions beyond normal users, I also can troubleshoot in more extensive ways. This isn't hardware. This is a problem at the OS level, but I can't say where, because I'm clueless about Android innards.

Te card is probably not faulty since it worked on Oreo.  Maybe the filesystem is not right. That's why I suggested to format it while it's still in phone.
2019-06-11 22:21:19
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