Step 4: After your Surface restarts, you’ll see a black screen with the Surface logo and the message that a system firmware update is being applied. IMPORTANT: Do not disconnect from AC power while the system firmware update is being applied.
Each new Spark firmware upgrade will be different than previous updates.
At the bottom of this post, you will find some of big Spark firmware fixes and new features added in the recent updates.
Some Surface Pro 3 owners have been suffering from battery issues for months now, whereby the tablet loses charge much quicker than it should.
Many were hoping the problem could be fixed with software, as a hardware problem would have likely led to a recall.
Firmware is software which is embedded into the hardware components of you DJI Spark quadcopter.