If you use a Samsung Focus WP7 device, then you have a “Consumer Accessible” MicroSD card slot into which you can plug a card of your chosing.
Unfortunately, your favorite brand may not be compatible with WP7 devices, but you wouldn’t know that because Microsoft has decided not to publish a list of Compatible cards at this time.Â Â Since most of the WP7 devices do not have a Consumer Accessible slot, it was not deemed a high priority for apparently good reason.
Unfortunately, a lot of users were also trying to increase the amount of base memory of their units by replacing the built-in memory cards that the OEM installed in the (supposedly Consumer Inaccessible) cardslot.Â Â When this strategy began to fail on a large scale for users,Â they began publishing their findings, which has created a new sense of urgency for Microsoft.Â Â
Now aÂ lot of consumers (myself included) are getting upset over this lack ofÂ standardization by Microsoft.Â I have burned thru two cards and found them to be incompatible.Â Luckily they were newly purchased, so it was just a matter of returning them for a refund.Â Â
My third try, a card from a no-name company called TopRam, turned out to be stable so far (knock on wood).
Another frustrating aspect of this testing is that it can take a while for the incompatibility of the MicroSD card to show-up.Â Â From personal experience, I can say that I have found that the best test for compatibility is to simply restart your device (aka a â€œsoft-resetâ€), either by pressing and holding your power button (the device should then say â€œGoodbye!â€), or by pulling the battery out.Â Â If all of your customizations disappear after the restart, then the microSD is not compatible.Â I performed the soft-reset about 40+ times on the TopRam card, and it never struck-out, so Iâ€™m feeling fairly comfortable with it.Â
I have also found that Class-4, as a speed classification,Â seems to beÂ a requirement for compatibility more than anything else.Â Â Oddly, a Class-10 card (a much higher access speed) failed to work, and theÂ cards natively used by the OEMs are SanDisk Class-2Â 8GB cards,Â so obviously higher speed is not theÂ most importantÂ consideration here.
If youâ€™re going to try testing cards yourself, I recommend the following steps:
1.) Confirm that the retailer will acceptÂ any incompatible card back prior to purhcase.Â Â
2.) You can thenÂ reformat the new card:Â
– From an “off” state, press and hold the VOL-DWN button, the PHOTO button, and the POWER button.Â
– Continue to hold even after the SAMSUNG logo appears on the screen to get to the Format Utility.Â
– Press the Windows Logo button twice to confirm the requested action.
3.),Â Follow the Registration process on the device to the point where it tells you â€œyouâ€™re done!â€.
4.) Then simple customize the Tiles a little bit, just so you can definitively tell whether things have changed. Â If itâ€™s going to fail, best not invest a ton of time customizing the device.Â
5.) Then just do the soft-reset a few times and see if the customizations stick aroundâ€¦
Below is a list of cards from SanDisk of cards that were supposed to be compatible with WP7, but this list has since been withdrawn from their website: