Often times when I reimage a SD card, I find that the capacity is wrong and generally way smaller.

I have found a helpful tool

Bootice

This is an easy way to get the original capacity back:

  1. Download and run the software
  2. On the “Physical Disk” section, select the SD card in the drop down menu and click the “Parts Mange” button
  3. Click “Re-Partitioning”
  4. Select
  • Disk Mod = “USB-HDD mode (Single Partition)”
  • File system = FAT32
  • Vol Label = whatever you want Start LBA = 1 Reserved Secs = 32
  1. Click okay
  2. Click through confirmation
  3. SD card should be reporting correct size