If there’s one thing I’ve learned as a phone reviewer (and surprised by) it’s how incredibly popular how to guides on removing the back cover of the phone are, (My Lumia 520 back removal guide has over 110K views, and the Lumia 625 one has over 95K). Regardless the Lumia 950 XL has a removable back cvoer that you need to get beneath to pop in your SIM, SD card and battery, so here’s a quick video showing the how to.
*You’ve been warned your nails will curse you for this, it really is pretty difficult. *
After popping off the back the battery actually slides out from beneath the raised camera hump/platform, meaning the camera looks like it’s in a very vulnerable position; beyond that however it’s smooth sailing popping in the SIM & SD card as standard. Hope someone found this useful!