I too noticed a second firmware update today of some kind but just as you said, I got no flashing-the-bios on reboot.
I too have been keeping an eye, via battery-report on my device. I did a full drain and recharge of my device in hopes the battery would be properly calibrated but alas, it is still messing up.
It will be discharging and then show 100%. When I run battery report, my "Full Charge Capacity" dropped from the ~40,000 it was to ~34000. It will likely keep doing this through out the day. i do not get any sense that the device isn't lasting me a long time,
it just keep changing its mind on what the full charge capacity is.
I still have a device in my device manager that claims it is "unknown" but when I update it tells me its the cover telemetry.
The only fix I seem to have gotten from the firmware update in January was that my device stopped waking up on its own, which would cause significant drain and warmth when in my bag.
This whole December firmware update and mess is really disappointing. I have now been for over a month with a rather expensive device that is not functioning properly at all. A useless battery gauge that doesn't do me any good in knowing how much battery lasts.
The device was working perfectly fine before they released there "improvements".
Microsoft was already lagging behind in the tablet space and this fug up is not helping their cause at all. They better get their act together and quick. An 82 page thread on Surface Pro 2 devices not working right?
**Shakes head**
New Surface Pro 2 Core i5-4200.
I too had reluctantly installed 2 x additional Jan-18-2014 updates since the first. Wishing and hoping these updates would fix the
Cold-boot with MicroSD card vs High CPU Saga. "Not a chance!" said Micro-Soft. Plus I should have waited and studied the release notes.
- 2nd Jan-18 update rolled out on 22nd Jan 2014
- a 3rd installment of the same name was on 23rd Jan 2014
Results:
1. Immediately after the 2nd installment, I found myself asking "Why why why why why whyyyyyy!" the battery life seemed to suffer greatly I could only get about 3hr of use.
2. Next day, the 3rd installment Jan-18 update rolled out and fixed that.
These updates were one doze of speed followed by another doze of sleeping pills.