In the morning, I tried to start my Android 4.4.2 phone. There was no response from the phone for some time, which was unusual. Then it started suddenly, and I noticed that there was a notification- 'Preparing SD Card, Checking For error'. All my apps and data installed on the SD card were missing.

After some time, the notification vanished, with the problem persisting. I tried to shutdown my phone, but in the middle of the shutdown process, the phone hanged. I waited and after some minutes removed the battery and restarted. No progress. Now, whenever I shutdown the phone with the SD card on, it hangs in the middle of the process, and I have to remove the battery. Without the SD card, the phone runs fine.

I then tried backing up the data and formatting the SD card on PC. It would not get formatted, and show the message- 'Windows was unable to complete the format'. I tried formatting with quick format on and off. Also, if I manually delete the files from my SD card, they come back after a while. Though the backup version of the data that I have saved in my PC behaves normally and gets permanently deleted if I delete it.

I scanned my SD card with two antiviruses with no result. I also tried easeUS Partition Master to format the SD Card on PC, with no result. I also tried formatting via Disk management on PC.

I would like to know the cause of this random error. The card could not have been damaged because it was securely installed in my phone when this happened. Also, I downloaded some songs from a known website the last evening, and virus could have infected my phone then, although I have previously used the website with no problem.

Please explain any possible reason why this could have happened, and a solution if possible.

I also notice that when SD card is in the phone, the battery gets consumed very fast.

Also, i tried formatting it using command prompt, and got an error message-'invalid media or track 0 bad - disk unusable'.

  • It's just a call for a "new SD card". Remember to buy a original product if you don't want this to happen. (Talking From My Experiences) Nov 16 '16 at 16:05

It sounds like the SD card went bad, things like that happen. I would recommend getting a replacement SD card.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.