Hi,i had to factory restore my kindle hdx 8.9 2th gen.i can not locate any bookmarks.tryed it twice no luck,any help

Yes, Kindle is a name used for all the Amazon tablets and e-readers.

Kindle 2, 4, 5, 7, 8
Kindle DX
Kindle Touch
Kindle paperwhite (1,2,3 generation)
Kindle Voyage
Kindle Oasis
Kindle FIre 7
Kindle Fire HD 6, 7, 8, 8.9, 10
Kindle Fire HDX 7, 8.9

And I probably missed some in here.

James, You have to make sure the Kindle is charged, try holding the button longer, maybe even up to a minute, hopefully that will do it. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info." You can also do a search on google for this issue, seems there is a lot of info. on this problem.
Kindle Fire HD how to reset when locked up EpicReviewsTech CC
12 major Kindle Fire problems and how to fix them
My kindle won turn on Is it the battery Kindle Fire HD
HDX will not boot

restore to factory Patricia, Easy to follow instruction, Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Kindle Touch How to Reset to Default Settings H2TechVideos
How to factory reset Kindle Paperwhite or Kindle Touch for sale
http://glyde.com/glydecast/how-to/wipe-kindle
How to Reset Kindle

Did you update the recent patch? almost all generations of kindle
needed a patch update.

The latest software update for Kindle Paperwhite (6th Generation) is 5.7.3. This update automatically downloads and installs on your Kindle Paperwhite when connected wirelessly; however, you can also manually download the software and transfer the update to your device via USB cable.
https://www.amazon.ca/gp/help/customer/display.html?nodeId=201307450

Try cold reboot at a last resort.

If you want to unfreeze your Kindle or restore the factory defaults, do the following:

1. Hold the power switch to the right for 20 seconds.
2. Press the HOME button for 1 minute. Eventually you will see the screen to your right.
3. Nine times out of ten just hitting the DEL button at this point will unfreeze your machine without having to lose all your files (please note, you can replace them later but it takes time and you will lose your notes, bookmarks, and settings).
4. If that doesn't work you will have to restore the factory default settings by typing in R E S E T. As soon as you hit the T it will reset.
That's it. Please note that this is for the Kindle 3G + wifi 6 inch version.

Hi try another charger could B an intermittent fault with charger.if it's not the charger it could B a fault in the tablets charging circuit or a faulty.,,,, battery good luck

hI try going lnto tools or settings click it on it should take u to a page with all the info.find display click it on next page should have font size if u find it pick the size u want ,,,,,good luck

sounds like you did everything right
could call amazon see if they can help
or do a factory reset to eliminate software problems you will lose all your data
then there is hardware problems dead battery that won't recharge bad cable connection inside kindle

Reset Kindle Fire When it Won Turn on or Charge

Try this:

Swipe from the top with two fingers separated
Tap on More twice
Tap on Accessibility twice
Explore by Touch - turn Off
Voice Guide - turn Off

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On the Fire HD2 and Fire HDX (2013 models):

Swipe from the top with two fingers separated
Tap on Settings twice
Tap on Accessibility twice
Explore by Touch - Off
Screen Reader - Off

The user guide for the HDX is available on the device. This link may help you. http://www.amazon.com/gp/help/customer/display.html/ref=help_search_1-1?ie=UTF8&nodeId=200317150&qid=1276571335&sr=1-1

You can use the help buttons on your kindle to contact Amazon directly for help registering your kindle. Amazon will contact you quickly and will have your account information available so they can assist you with your registration.