Messed up Micro SD Card

[Nebor]

So I have a 16gb Micro SD card that I use with my phone, primarily for music. It's been fine for 6 months or so, but I was using a user made ROM on my phone, and I think that's what messed up the card. Here's the symptoms:
Shows up as 14.9gb in Windows Explorer (normal)
Can only put 7.49gb of data on it, anything after that, it goes really slowly, and often causes the disk to disappear out of Windows Explorer.
Can do a "quick format" of the disk, but trying to do a regular format ends in failure every time.
Asks to scan the disk for errors when it's plugged in, but never finds errors.

Now I think what's happened is that the partition or fat table or something is messed up. But I don't know how to fix that.

 

[Gillbot]

Might be a fake?

A program called H2testw 1.4 has been written (thanks to German writer Herald Bögeholz and c’t Magazin für Computertechnik) which correctly analyzes and reports a flash drive's true size capacity; letting you know it is a fake.

 

[Nebor]

Well it's been full in the past.

 

[Gillbot]

Have you tried a format via DOS? There are also a few utilities to format flash cards in case of errors.

 

[Elcs]

Have you tried using your phone to format the memory card? Sometimes that can help.

 

[Nebor]

Have you tried using your phone to format the memory card? Sometimes that can help.

It's a windows mobile phone, I'm not sure if it has a utility to format the card.

 

[Elcs]

It's a windows mobile phone, I'm not sure if it has a utility to format the card.

Every phone should be able to. I run Windows Mobile 6.5 so I cant help too much in that respect.

Fly over to http://www.xda-developers.com/ and have a word with the gurus. I am hooked on a custom ROM with Windows 6.5 🙂