Camera failed Every time I want to talk pictures on the front sreen of my camera says warning the camera failed and even when I go into applicantion on my samsung and go to camera it says camera is disable

First try restarting the tablet.

Then try logging out of your Samsung account and logging in again.

If that doesn't work, try installing a different camera app from the Play Store (Open Camera is pretty good).

If you are talking about speaker volume, not earphone volume, chances are you have a defective speaker assembly unit which must be replaced.

For everything you want to view on a computer, tablet or phone, you need a viewer. For pictures in .jpg go .png, you need a Photo viewer. Dow a .PDF, you need a PDF reader and for text you need a text reader. Formatted text, need a word or other reader.
So downloading is not the biggest problem. Having the correct programs (apps) installed is more of an issue.
Check for your device what you need to view the picture. Realise most RAW pictures can't be viewed on phones or tablets, because every camera model has its own RAW format and needs its own translation. For RAW you need even special program's on a computer.
First make sure you can view the file on your tablet, before you start downloading it.

Have you rebooted or done a hard reset since the update?

"Cold Boot (aka Hard Reset)
Unplug the power cord and shut the unit off. Press and hold the VOL DOWN and then POWER button at the same time for at least 10-12 seconds until after the start-up screen appears and is joined by some small print at the top of the screen then let them both go. If the TF booted the way it always does, you have not accomplished the task,try again until you have seen the 2 icons in the screen.

After a few seconds you should see a couple of shapes in the middle of the screen called "Wipe Data" and "Android". The right "Android" will have a green highlight fading in and out. Wait a few more seconds until the term "Cold Booting Linux" appears in the list near the top of the screens and let it reboot. If you own a keyboard dock be sure you do this with the dock connected.

download the camera time and date stamp app from android market if it is compatible with your device

OK, here is the issue with the "camera failed" - the PHYSICAL part of the camera is fine, it is the SOFTWARE that is flawed. Until Samsung to fix this issue downloading a 3rd part camera software program will allow you to at least use the camera. As of 4.0.4 the issue STILL exists. Samsung support is of NO HELP. How do I know this I have a 7.0 Tab myself and spend lots of time in the forums AND I have the exact same problem.

All these do gooders telling you to take this thing back for a new one are wasting your time, you WILL have the same issue with another new unit. Either return it and get your money back or wait a bit for the fix to come in an update. No cleaning the lens will not fix the gray pictures either.

Good luck

do one thing Turn Off Your Tablet
-> Hold Volume Button and Power button for 3 to 5 Secs -> You will see a screen with android and triangle with exclamation mark -> you will also see 4 lines of writing in blue. -> use volume buttons to navigate to 3rd option, use home to select it ( warning this will erase your system data if need please take backup) (memory card is not affected) -> now navigate to 1st option saying " reboot to system" use home key to select it.
I hope this will fix things

Are you sure the Kindle powers up? It may show something on the sreen, even if it is not turned on (e-ink screen does not need a powersupply to show an image). Try to power up your Kindle with a different battery. If that fails, you can get the part at Kindle Repair and there is a guide that shows you how to open a kindle and install parts at Kindle Repair Guide.