Restore original settings on my fuji hs 25 exr camera

This is 12 years old and if it has been left in a cupboard unused for some time, will require a good Fuji service centre to replace the leaking capacitors.

This is a specialist job requiring specialised equipment - your only hope is to take it to a repair centre and hope they still have spares for an outdated model. Be warned - it will be expensive. It may be better to get a replacement

Yes, almost certainly.

Go to http://www.dpreview.com/forums/post

The lens on the HS series cameras is fixed and is not meant to be removed. They are not SLR body cameras even thought they appear to be. You can buy non-Fuji filters and lens converters to fit on your camera but you can't replace the lens that is on it. It is a Bridge camera, meant to be between DSLR's and consumer point n shoot cameras.

Does it say Lens control error, or does it say Focus error, turn off the camera and turn it on again?
The last can happen when you touch the lens barrel. When the lens does not retract when you shut down the camera, perhaps the battery is exhausted or the barrel got stuck.
Try to recharge the battery and start all over again. If nothing goes, try carefully to pull out the lens a little Less then one millimetre. or gently press it back a little. Be aware the camera is a very delicate piece of equipment, so don't use force, because that could damage the camera definitive.
In the manual, it says you should contact FujiFilm, when the error comes back after you switched off and on. So if nothing helps, that is the last option. Visit a repair shop from Fuji, or bring a visit to your dealer.

Try these procedures.

Your best bet is going to be E-Bay, search your camera make and model under parts and you will find just what you are looking for.

You can download the manual from the manufacturer's web site at
http://www.fujifilm.com/support/digital_cameras/manuals/pdf/index/s/finepix_hs20exr_manual_01.pdf

because the focus is set to infinity it will try to search for something to focus on. try setting it to auto or Manuel focus on what you want to record.

To set the camera back to factory settings first go to Setup Menu Options> Reset
See diagram


Hope this was a help Happy New year