Ah yes. That happened to me last weekend. Here is a portion of a
message I sent to 

[log in to unmask] Read it and be careful as you work. You
can fix it.


After the upgrade, my
bluetooth keyboard stopped working except for a few functions. I
found the following fix for that on AppleVis:
Quoting:

   AppleVis
   If your Bluetooth keyboard doesn't work with VoiceOver except just a
   few functions in iOS 8.0, try the following steps to resolve the issue.
   Once the problem disappears, it doesn't appear again unless you change
   the iPhone language in Settings, General, Language & Region. To make
   the problem disappear from your iPhone, follow these steps:

   1. If you use just one software keyboard, temporarily add an arbitrary
   one in Settings, General, Keyboard, Keyboards, Add New Keyboard.
   2. Open the Notes app.
   3. Create a new note.
   4. Press the left arrow key and the right arrow key simultaneously to
   turn off the quick navigation option.
   5. Hold down the command key and press the space key several times to
   cycle through the list of software keyboards.
   6. Press the left arrow key and the right arrow key simultaneously to
   turn on the quick navigation option.
   7. Now your Bluetooth keyboard should work fine except other iOS bugs.
   8. You may delete the software keyboard temporarily added at Settings,
   General, Keyboard, Keyboards.

   This is a copy of the email sent to RiVO customers to resolve the issue
   (http://goo.gl/GiBvWy) since it should also resolve the problem for
   other Bluetooth keyboards as well.

End of quote

	This is Martin speaking now. After activating notes from
the touch screen, I selected compose and did as the instructions
said. I had selected a Spanish keyboard as the software keyboard so I typed
Command+Space and heard Espaniole then English and then
Espaniole again as there were now two software keyboards.
	I left it on English. You then just get out of notes and
the BT KB now works as well as it did in IOS6.
	
Blake Hailey writes:
> HI all, I may have made a big mistake.  I downloaded IOS 8.02 on my iPhone
> 4S.  Now my blue tooth key board won't type in edit fields.  Some keys do
> work though.  For example: when I press caps lock, Voice over says caps
> lock.   The key board worked fine in IOS 7.02.  I have no idea what to do
> now.  Any thought, or questions.  Thanks for your help.
> 
> 73 KA5POW
> 
> 
> 
> -Blake
> 
> 
> 
>