Surface Pro 4 type cover suddenly not working.

We must not accept having to spend more money and use a BlueTooth workaround as an official solution. I want my first-party product to work as advertised and Microsoft needs to resolve the issue which is clearly not a hardware defect.

Your speculation about battery seems very sound. Some pretty aggressive battery management is going on in these new mobile devices, and the behaviour of the SP (as well as the behaviour of MS) is consistent with an unexpected condition being encountered by firmware.

I was about to shell out $3000 to buy a top-of-the-range SB2, and my partner was going to upgrade her SP4 (which she runs with 2 big external monitors) to a 6, but I'm ordering a Lenovo X1 Yoga instead. I'd far rather have an SP/SB, but the Yoga has a 4-year warrantly for $100, and that matters with these technologies, it seems.

Hi - just a heads-up for folks experiencing these issues. I've spent countless hours troubleshooting (including doing a complete reset) - finally got it to work, but a few hours later, it stopped again.

So, I looked at Bluetooth keyboards and am now typing on a BRYDGE 12.3 - picked it up at Best Buy for $99. It has some advantages and some disadvantages over the Surface type cover. With that said, the pluses outweigh the minuses (and that's NOT including the fact that I no longer have a driver issue).

Your speculation about battery seems very sound. Some pretty aggressive battery management is going on in these new mobile devices, and the behaviour of the SP (as well as the behaviour of MS) is consistent with an unexpected condition being encountered by firmware.

I was about to shell out $3000 to buy a top-of-the-range SB2, and my partner was going to upgrade her SP4 (which she runs with 2 big external monitors) to a 6, but I'm ordering a Lenovo X1 Yoga instead. I'd far rather have an SP/SB, but the Yoga has a 4-year warrantly for $100, and that matters with these technologies, it seems.

A computer tech had my Surface for two weeks trying to figure out the issue, with no luck .. he said a lot of people are having the same problem. 

I'm impressed that you got to deal with a tech who has actually heard "a lot" of people are dealing with the same thing.  It's a damned shame Microsoft can't just admit to their generally otherwise happy Surface users that this is an issue and even say that it's being looked into if not at least specify the cause.  Nobody should have to suffer with something like this and be made to pay out of pocket if it happens out of warranty.  It's their own hardware, firmware, and drivers.  They broke it, they should fix it.  For free.  I can't imagine any consumer who's aware of this issue that would be willing to pay full price for a Surface and hope this problem doesn't affect them.  And I don't want Microsoft to pull an Apple where they try to quietly fix any issues without generally acknowledging an issue even existed, including to those affected.  "Hey, I haven't seen any posts about this problem in a year now" should not be the way to determine whether something was resolved.

I am in the same boat. I even took the keyboard to a shop to see if I could try it out on a new Surface....it worked perfectly!

My problem is slightly different in that my Surface actually recognises the keyboard in Settings but it won't work at all in Windows.

A computer tech had my Surface for two weeks trying to figure out the issue, with no luck .. he said a lot of people are having the same problem.

The Surface itself is working okay and the only answer he has is that it is a software issue and Microsoft seems disinterested in fixing the problem. Its laughable that they pump out uncontrollable updates - which we have no idea what they are doing or for

• and obviously some/one of these updates is not compatible with MS's own products.

I should add that my computer guy upgraded all my windows software and unless anything new has been issued within the last two days please please don't bother giving me links, as we have already have installed them. I have Window v.1903 installed.

The only conclusion I can come to is that MS is more interested in getting us to upgrade to a new Surface 6 - where, at least, you will find your old keyboard will happily work for you! I won't be bothering to upgrade to a 6; what is the point when you will have to pay another couple of thousand dollars again in two years time when the 6 will be obsolete and impracticable?