Display not open [I X U S 70]

Replace the battery it has probably shorted internally. You are lucky it worked at all. It is unlikely to work properly in the future, as faults will develop. I didn't know they still made flip phones.

Try this trick. Pull battery and put camera in a zip lock bag and into freezer overnight. Take out and install charged battery and see if there is any change. This worked with a Go-pro I had, unbelievable! Capacitors get old and dry out and these sometimes affect the charge circuit as well as batteries getting old too. Li-po batteries (yours) get old if you use them or not so it may just be an expired battery.

I have put a new cassette in my VL-Z5 camcorder and the display says "eject the cassette". My problem is that the cassette will not eject when the cover is opened. Battery is fully charged and I've also tried it with power supply connected?

Not a lot to go on.

If the display shows up when you hold the shutter release down halfway, then the internal battery has drained. This battery-different from the EN-EL3 that serves as the main battery-runs the clock and keeps your settings while the main battery is removed. You may be able to recharge it by putting a fully-charged main battery into the camera and leaving it alone for three days. (This is in your manual.) After three days have passed, turn the camera on. Both displays should work like normal, and it should prompt you to set the clock.

may be batteries you brought are old try with normal ( not rechargeble ) batteries. it would not last long but you can take atleast 30 to 50 photos. if it works it means new batteries are faulty.this type of problem i never saw in camera.use SANYO harmolattice HR-3UQ batteries.

we have to keep some time to charge this LG Vu CU920 as there is no option like fully charged display....... switch off your phone after 10 pm and charge it for 3 hrs or wake up in the mornig make the phone off and charge it for 2 and half to 3 hrs.... then the battery will work long

This sounds like your release switch is faulty. I have repaired several of these 5D cameras with similar strange symptoms. Basically what happens is the first switch on you release assembly cracks and breaks thus making continuous contact. When this happens it basically locks up your camera. The solution is to replace the release switch assembly. The repair should not cost you more than $150.
Hope this helps.
Wes Kauffman

take out the battery wait for a few sec and then put the battery back on, then switch the camera on.
for the lens try to gently force open or close the lens.
this works on my camera. i have the same problems. hope this helps.

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