Wireless Keyboard issues after battery change

I've search the forums for an answer and can't seem to come up with anything.
I have an older white wireless keyboard. It's been running great on my Mac Pro since day one, no battery changes since new, about 9 months now, maybe a bit more. The batteries just died on me and I went and changed them with 4 new batteries. Upon turning the keyboard back on, the green power LED comes on steady for about 5 seconds, then goes into a quick double blink, then a pause, then double blink again, repeating this over and over again.
I've replaced the batteries again with a different brand, same results. I've attempted to clean the positive terminals with a pencil eraser as found in an Apple knowledge base article. Nothing seems to change. The unit won't connect and doesn't appeared to be powered on as the Caps Lock key indicator will not light up.
Is it dead? Any ideas on the double blink indicating a fault? The manual does not have a key on blink codes.
Message was edited by: VioletM3

Contacted Apple phone support. They had me reset my PRAM and after the reboot, the keyboard connected back up just fine and is working properly again.

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This question was solved.
View Solution.

Hello @Thor66,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that your wireless keyboard is not working and you are looking for assistance. I am providing you with an HP Support document: Wireless Keyboard and Mouse Troubleshooting, which will walk you through the troubleshooting process for your wireless keyboard.
Now if this does not work and you have to replace the keyboard do not fear you can replace the keyboard and the dongle without using another USB port as the one that is in can be replaced. I would be happy to assist you further and/or walk you through changing out the dongle from a new wireless keyboard, but first I would encourage you to post your product number for your computer. I am linking an HP Support document below that will show you how to find your product number. As well, if you could indicate which operating system you are using. And whether your operating system is 32-bit or 64-bit as with this and the product number I can provide you with accurate information.
How Do I Find My Model Number or Product Number?
Which Windows operating system am I running?
Is the Windows Version on My Computer 32-bit or 64-bit?
Please re-post with the requested information and I would be happy to provide you with assistance. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

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Is this how they all work?
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