[ilovejedd]

Originally Posted by TheBard

Thanks again for the information. Lets see if I can summarize so far, in case others are interested in expanding the Clara's memory:

• The OEM internal microsd card is 4GB, but the Kobo Clara can "see" 64GB or more.
  As mentioned by DNSB, it's 8GB. It can definitely see more than 8GB. The Glo HD has been tested working with up to 128GB so at the very least, I expect that to work with the Clara HD, too. The 256GB might work but those kinda cost as much as the Clara.
• To increase the Clara's storage, the 4GB card must be cloned [copied to] to the larger card (thus transferring the firmware).
  Do note, it's not a simple file copy operation. The reason the term "cloning" is used is because the entire card structure needs to be duplicated.
• Although Kobo recommends FAT32 formatting of the SDHC card, cards in the range of 64GB and above can use exFAT.
  Nope. I don't think Kobo firmware even supports exFAT (Microsoft patent/license?). However, FAT32 definitely supports higher than 32GB. You just need to install different software to either format or expand the FAT32 data partition. Not like you can use the built-in Windows formatter to format in the first place. That would kill the partition which stores the the Kobo firmware. Heck, Windows reports the card as corrupt or missing a file system when you plug it in with a card reader.
• The larger card should have a single partition.
  Nope. I believe there's like 3-4 partitions post-clone. The 3 I know for sure are: OS/firmware, recovery and data.

If I have made any errors in my summary, please correct them!


Additional information:

• The Clara can be opened by carefully "splitting" the top and bottom portions, as shown in earlier photos. When done, the halves can be snapped together.
• Class 10 cards have been used, because they have much higher speed capabilities than lower classes. However, the maximum transfer rate is determined by the device.
  The reason Class 10 cards are often used is because all consumer 64GB+ cards are at least Class 10. Even 32GB, I don't think they make in Class 4/6 anymore. Doesn't mean all Class 10 cards are good for running Kobo firmware. That just means minimum sequential write is 10MB/s (good for taking videos or large images). The 4K random write can still be crap. SanDisk and Samsung have good 4K random write and are the recommended brands for Kobo SD card upgrades.
• When purchasing the larger card, be careful - counterfeit cards are quite numerous. Purchase from a reputable dealer.

Corrections in red.