Blackberry Memory Cards Info

[kingakuma]

Overview

A microSD media card is a removable flash memory data storage device. When inserted into a BlackBerry smartphone, a microSD media card can expand the memory available for storing files such as videos, ring tones, pictures, and songs. The media card is sold separately from the BlackBerry smartphone.

The following table lists the BlackBerry Device Software versions and the media card sizes they support.

BlackBerry Device Software version Media card size limit

BlackBerry Device Software 4.2.0 Up to 2 GB
BlackBerry Device Software 4.2.1 Up to 4 GB
BlackBerry Device Software 4.2.2 Up to 4 GB
BlackBerry Device Software 4.3.0 Up to 8 GB
BlackBerry Device Software 4.5.0 Up to 8 GB
BlackBerry Device Software 4.5.0.81 and later Up to 16 GB
BlackBerry Device Software 4.6.0 and later Up to 32 GB

also when looking at the memory cards check which class they are the higher the class the faster the card is

SD Speed Class
More Speed Creates More Options

The SD Association is constantly innovating to ensure SD technology stays current with the needs of consumers and product manufacturers everywhere. All SD memory cards, in any size or memory capacity, come with different speed varieties designed to suit a myriad of uses. This flexibility allows developers to select just the right speed for the right device.

These new speeds are available in a new specification defining the minimum data transfer speeds for both SD/SDHC memory cards and SD/SDHC host products. This enhancement is easily recognized by three levels of Speed Class, class 2, 4 and 6. Speed Class 2 guarantees a minimum transfer speed of 2 mega bytes per second (MB/s), Speed Class 4 guarantees a minimum transfer speed of 4 MB/s and Speed Class 6 guarantees a minimum transfer speed of 6 MB/s.



With the new Speed Classes, the host product has the option to check the fragmented state of the card and immediately calculate the write speed in each part of the card. The host can then determine where best to write the data according to its speed requirement.

Fragmentation and Speed

The memory of a card is divided into minimum memory units. The host writes data onto memory units where no data is already stored. As available memory becomes divided into smaller units through normal use, this leads to an increase in non-linear, or fragmented storage. The amount of fragmentation can reduce write speeds so higher SD card speeds help compensate for fragmentation.

The SD Association has specified operating conditions for SDHC memory cards to guarantee the minimum speed according to the card's speed class. Class logos are provided to help identify cards that comply with these specifications.

[dieseldude]

Good info. Thanks.

[raji.t]

Great info, I have a class4 8gb microsd card, works great for me!

[bacon.jay]

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[giancarlo93]

Great info.
Thanks

[ya.dude]

do you know how much music a 32gig would hold!!!!!???

[Devlyn16]

One thing that needs to be clear in regards to the transfer speed is that it isn't only dependant on the card but on the adapter the card is interfacing with.

There is the old saying that you can't fit 20lbs of crap in a 10lb bag. If the card reader is a class 2 then a class 6 SD card isn't going to beable to transfer data at the class 6 speed.

I'm too lazy to research what speed the various BlackBerry Smartphones read the SD cards at to determine if (within the phone) a class 6 is really better than a class 2.

[deRusett]

Originally Posted by Devlyn16

One thing that needs to be clear in regards to the transfer speed is that it isn't only dependant on the card but on the adapter the card is interfacing with.

There is the old saying that you can't fit 20lbs of crap in a 10lb bag. If the card reader is a class 2 then a class 6 SD card isn't going to beable to transfer data at the class 6 speed.

I'm too lazy to research what speed the various BlackBerry Smartphones read the SD cards at to determine if (within the phone) a class 6 is really better than a class 2.

It isn't a matter of you being too lazy

I actually could not find the details across multiple BlackBerrys to find what the R/W speeds of the device are.
This Thread contains good information, but is not overly special

what it very much lacks is a chart that includes what each Device R/W at, so that one can asses if a Class 2,4,6 is better for them

From what I read, Class 4 seems to be the optimal for the Blackberry's but I can't substantiate that with anything more then hearsay and comments across various boards, I have not seen testing..

[tnsfan]

Thanks for the info. It is helpful because I am considering which memory card to get for my new bold along with what size and class.

[ticktekk]

If memory serves SD cards can be defragged just like any hard drive when connected to your computer. Preferably in a card reader not you BB

[blackhorse]

Thanks for sharing :-D!!

[BergerKing]

Originally Posted by ya.dude

do you know how much music a 32gig would hold!!!!!???

An 8gig supposedly holds approximately 6400-8000 songs.

How Many Songs Can A 32GB Memory Card Hold | Memory Cards

Posted from my CrackBerry at wapforums.crackberry.com

[raji.t]

Originally Posted by BergerKing

An 8gig supposedly holds approximately 6400-8000 songs.

How Many Songs Can A 32GB Memory Card Hold | Memory Cards

Posted from my CrackBerry at wapforums.crackberry.com

Only if encoded at AAC+ Enhanced at 48kbs bitrate... Which in fact is rather hard to find a converter that converts to eAAC+ !!

Posted from my CrackBerry at wapforums.crackberry.com

[sasan]

great info...i have a 16 gig microsd...still have 9 gigs left...

[makuwel]

I have a 4gb card and want to upgrade to a larger card. How do i transfer the data from my one card to the new card?