Lens doesn't open fully

Stuck automatic lens covers are fairly. But usually it's very easy to fix, without even opening the camera. See this link for troubleshooting steps for this problem.

Short answer. No.
If it's like other Sony cameras I've seen there is a worm gear internally which extends the lens. A single grain of sand or dust caught in that gear will prevent the smooth motion of the lens assembly. When you manually pull it with a razor blade you are providing enough force to "jump" the dust or sand and allowing the lens to fully extend. If you're lucky you may dislodge the dust after doing this several times in which case it will last a lot longer. This has actually happened to me with a Sony camera (Just not this model). You can also use compressed air (Dustoff or Dust-Away) to blow on the lens assembly while it is extending or retracting.

If it absolutely won't work anymore and you have nothing to lose, just open it up with a screwdriver and try to clean it. You can likely buy an entire lens assembly and replace it if necessary however this is not for the feint of heart and I would say you might as well just buy a new one.

One camera I had I pried the lens open three times (Just like you did) and it never happened again. Like I said, you may get lucky but the actual repair is expensive and/or time consuming.

Not sure if you mean the automatic lens cover, or the actual lens shutter, so here's fixes for both:
Stuck automatic lens cover
Stuck shutter

Here's some tips on fixing stuck automatic lens covers. Good luck!

easy fix. yo turn it on and then very lightly tap the lens cover or push it out. then you should clean the lens because the dirt or dust on the lens is stopping the lens cover.

If the lens barrel isn't fully extending on power up, that will prevent the lens cover shutters from springing open. There is a stationary prong that pushes the cover closed when the barrel is retracted.

Does the camera work otherwise? Take pictures thru the half open lens?

tuen on camera then press display a few times. it sounds like the display is just turned off. the lens system should be open.

Try blowing lots of compressed air around the open lens shutter to clean the mechanism. Or use a hair dryer for a few seconds (don't want to heat up the camera). Also with the lens barrel extended and pointed downward, tap the lens barrel with a pencil while you extend and retract the lens by powering the camera on and off. A grain of sand in the mechanism is usually the culprit, and you want to try to dislodge it.

You can open it up, but only as a very last resort. The above procedures usually work if you try them enough. But for those particularly nasty stuck mechanisms, here's an example repair on a Canon Powershot A400 (do this at your own risk, and it will void your warranty):

http://camerarepair.blogspot.com/2007/11/repair-of-stuck-lens-covers.html

well the problem it´s on the switch that turns on the camera that is located under the lens cover.... this swith is glued to the front cover and lots of times gets unglued, u need to remove the lens cover by removing 2 screws on the bottom part of the lens cover, after that just pull the switch slowly and glue it. don´t use 3 seconds glue use a more viscose one. good luck

Try blowing lots of compressed air around the open lens shutter to clean the mechanism. Or use a hair dryer for a few seconds (don't want to heat up the camera). Also with the lens barrel extended and pointed downward, tap the lens barrel with a pencil while you extend and retract the lens by powering the camera on and off. A grain of sand in the mechanism is usually the culprit, and you want to try to dislodge it.

You can open it up, but only as a very last resort. The above procedures usually work if you try them enough. But for those particularly nasty stuck mechanisms, here's an example repair on a Canon Powershot A400 (do this at your own risk, and it will void your warranty):

http://camerarepair.blogspot.com/2007/11/repair-of-stuck-lens-covers.html