According to Microsoft, the Lumia Denim update will allow some Lumia handsets to download OS updates to microSD cards.
In its FAQ section, Microsoft announced:
Lumia software update OS version 8.10.14219.341 (formerly Denim), or above enables support for downloading phone software updates to a SD memory card. The supported devices list includes: Lumia 530/530 Dual SIM, 630/630 Dual SIM, 635, 636, 638, 730 Dual SIM, 735 and 830. The feature will be available for possible software updates coming after 8.10.14219.341.
- Other Lumia models with a SD memory card slot, such as Lumia 520, 525, 620, 625, 720, 820, 1320 and 1520, do not support downloading updates to memory card.
To see which Windows Phone operating system (OS) version is installed on your phone, do the following: In the App list, tap Settings > About > More info
- The Software section indicates the general product name we use to describe the release (for example, “Windows Phone 8.1” or “Windows Phone 8”). The OS version section indicates the specific build number of the release (for example, “8.10.12382.878” or “8.0.10517.150”)
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