How can I hard reset my Olympus sp-610uz - Olympus Cameras

Sounds like a hardware problem... You may have to take the camera to a dealer and have them check it out. However, try this first:
Leave the card out for a while, and recharge it. Then reset the camera to factory defaults is you can (check manual).
You may also want to check with the Olympus web site to see if you have the latest firmware update to your camera model. You could try and download latest version and install it.
Hope any of this is to some help... :)

This can happen when you battery does not have enough power. It protects the camera against damage and the pictures on the memory card. If the camera has not enough power while accessing the memory, it could damage all pictures you already shot.
Even when you just charged the battery, it can be it does not have enough power to work. Just try charging it again and if possible try another battery.

You may order a copy of the manual from here. It's not free because somebody has to cover the cost of printing.

• Here is the manual for a Olympus SP-810UZ Camera as you requested http://www.olympusamerica.com/files/oima_cckb/SP-810UZ_Instruction_Manual_EN.pdf

• Hope this helps.
  

No display on screen can be due to failure of the LCD or the CCD which is the optical sensor of the camera. So to confirm check the older picture to be seen on the display. Confirm this by checking the card on your PC. If the display is not seen, then the LCD can be faulty, fault on the linking cable or the control board.

However if the older images are seen well then the LCD is working correctly and the fault can be failure of the CCD- charge coupled device in the camera. If you have accidently exposed the camera directly to high intensity light / sunlight, then it is possible that it is damaged. Remove the battery and keep the camera aside to reset and try as a last resort. Get estimate before you decide. It will be good to have it checked at the authorised service as you do not have to run around for spares.
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1. See Olympus SP-800uz user manual page 42 for RESET.

2. A Factory Reset can only be done by removing the battery for about 3 days.
See user manual page 53.

In order to reset the Camera, please us the Reset option under the Settings 1 Menu..
http://www.olympusamerica.com/files/oima_cckb/SP-600UZ_Instruction_Manual_EN.pdf

please refer page # 40 of the manual to view the reset option.
Thanks for understanding..
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Zooming when recording video on the Olympus SP-800uz is only possible when the sound is set to off. Set the zoom to the setting you want before recording, after that start recording.

Hello.
Try to reset the camea, and check if that can get rid of the Blue busy thing on your screen.

The SP-570UZ does not have a filter thread; therefore, lens filters cannot be attached directly to the camera.

Filters with 55mm diameter can be attached to the SP-570UZ via the CLA-10 Lens Tube Adapter, sold separately. However, it is not recommended because vignetting may occur in the corners of the image when the camera is set to wide angle positions.

The CLA-10 Lens Tube Adapter (Item #202104) is available from authorized Olympus dealers and also online from The Olympus Store: http://emporium.olympus.com