We've known for some time that Microsoft will be axing the Nokia branding from its future lineup of Windows smartphones, but until now we had no idea what the next Microsoft Lumia smartphone might look like.

However, it turns out that Microsoft may not be changing much at all, as images allegedly showing the very first Microsoft Lumia phone have appeared on Chinese social network Weibo. The link has since gone offline, but PhoneArena managed to grab the pictures before they disappeared.

With a codename of RM-1090, the phone has the same bright orange casing as Nokia's current crop of Lumia phones and looks very similar to the Lumia 635 (with the exception of an LED flash next to the rear camera). It also looks like the phone will have onscreen control buttons rather than physical ones below the screen. The only real difference is that there are now two Microsoft logos where the Nokia logos used to be. This is good news as far as we're concerned, as we're already big fans of the Lumia design and its bright, vibrant colours.

The phone's specifications have also been leaked on Chinese website TENAA . The RM-1090 will have a 5in 1,280x720 display, a 5-megapixel rear camera, a quad-core 1.2GHz processor paired with 1GB of RAM and 8GB of storage with support for microSD cards up to 64GB. The phone will weigh 145.7g and measure 140.2 x 72.5 x 9.32mm. It will be also be available in black, white, grey, blue, orange and green.

With this in mind, it looks as though the Lumia RM-1090 will likely be a budget Windows phone or a lower-end mid-range model, slotting in somewhere between the Lumia 630 and the Lumia 735 .

Last month, Microsoft stated that its first non-Nokia smartphone would be unveiled "soon", so we hope to hear more information shortly. We'll be sure to bring you all the latest information as it's confirmed.