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Recently, I purchased a 32Gb Kingston MicroSD card for my Alcatel Onetouch Pixi running Android 5.1 with all the latest available updates.

When I first inserted the card, everything worked as expected and the phone detected the card. The only odd thing was that, on starup, the phone would display "Optimizing apps" and spend a long time going through 100 or so apps, and this occured at every reboot. Nevertheless, I had access to the storage, so I tried moving a couple apps to the MicroSD. This seemed to work but I eventually got some errors while trying to move apps, even when trying to move them back to internal storage. I had to reinstall a couple of apps, but everything else seemed to work fine.

A bit later, I noticed that the "optimizing apps" screen didn't appear anymore, so I checked and the SD card was not detected anymore. There was no difference between having the SD card in the phone or not. However, my computer could detect the card just fine. Other android devices also detect it normally. I have tried another MicroSD card and got the same result.

I tried cleaning the card gently, reformating it, and resetting my phone, but nothing worked. The MicroSD card should be compatible with the phone according to the infos I found online, which would be logical since it worked at first.

Is it possible to make the card functional again?

migrated from superuser.com Jan 13 '18 at 16:07

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  • When this happened to me, it was the card. It was an old card. – Max A. Jun 11 at 17:13
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I had an issue like this with the S4 (LTE), and in the end it was the actual tray.

But when it comes to external media in android there isn't much I can think of what could be a software issue.

Have you installed anything lately? - If so remove it

If you have updated, try resetting the phone (do not update it) and then try and put the card in, if you want a step-by-step guide of backing up apps (photos backup automatically if you attached your google account).

Sorry if I couldn't be of assistance!

Hope you resolve the issue and have a great day

  • While the first sentence sounds logical, I doubt anything else from your post applies. How should an user-installed app be responsible if the card isn't found even at boot? How should a reset cure that? – Izzy Jan 13 '18 at 21:12
  • He doesn't say anything about it not being detected at boot =P – Brendan Jennings Jan 14 '18 at 9:36
  • Oh, he does – you just need to "read between the lines". Guess when that "optimizing apps" happens? So I'd interpret the 3rd paragraph the way that the card was no longer mounted at boot, and hence no "optimization" fired. To be 100% sure one needed to check the logs right after boot. That being said, an app could only come into play if it had the permission to MOUNT_UNMOUNT_FILESYSTEMS (or root powers at that). My bet would rather be "imperfect compatibilities": some devices have issues with some brands of cards. I'd simply check with a different brand of card before deleting stuff. – Izzy Jan 14 '18 at 10:59
  • Wow you're such a nice guy... I'm so sorry that I didn't see that he answered his own question =P, so I didn't see what he said before. Thanks for the down-vote by the way, you should really consider your attitude on here. – Brendan Jennings Jan 14 '18 at 11:56
  • Thanks for your accusation, Brendan – but I don't deserve the honor: the downvote wasn't mine :) So before blaming people, maybe follow your own advice? ;) – Izzy Jan 14 '18 at 12:02
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I have completely changed my original answer, in part because someone helped me to see that what I had mostly done was ramble about a similar experience, but I never really provided very much in the way of help, answers, or advice. The fellow user Izzy, who very helpfully and graciously explains that much of my response was '80%, was a sort of "me too" kind of thing', [paraphrase, not verbatim] and 20% was a kind of read-between-the-lines type of help. You are absolutely right, Izzy. Thank you for your help and patience. I very much appreciate it. This problem (mine, not Izzy's) is in a few of the answers I have given. I want to make a formal apology for that one, one on Mudras apps, and even this one: I am truly sorry. I have very severe ADD, and these responses take over an hour, occasionally even two to complete. I am not trying to make excuses, but I need to say that because it helps explain that, though I still have a lot to work on, I am improving, constantly trying to keep things simple and short. It is funny, in a way, because I try to keep it light, short-ish, yet it seems like I am only ever successful at conveying the enthusiasm... and levity, if lucky. But anyway, I AM sorry. I will keep trying to keep my rambling (I don't want anyone to think I was saying someone had said I was rambling. To be clear, it is only I who used this word) to a minimum, and to be as clear, concise and to the point as possible. I welcome any constructive criticism and would appreciate it. Thank you, everyone, for your patience and help...especially Izzy: thank you. Michael C

  • Michael, to make that a real answer (currently it's 80% a "me, too" report, and 20% a "suggestion between the lines"): could it be the newer card you've bought was from a different brand? E.g. the first one was a SanDisk, the other one Transcend? I've heard more than once that some phones have issues with some brands of SD cards, so this could be the case here. – Izzy Jan 14 '18 at 11:04

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