The weather is hot, and there is something wrong with my ipad4. Please help. 15 points.

You don't give 50 points for so many questions that few people can answer. .

First, you said there was something wrong with the volume button. I suspect that the voltage at both ends of the key is unbalanced or there is dust accumulation, which causes the electrical signal not to reach the processor completely. Press all the buttons after turning on the power.

As for the failure to adjust the volume of the right-click menu of the background program bar, it may be that you have too many background programs running at the same time and insufficient memory, which leads to the unstable working process of the system. Try to shut down all the backstage. Also: pay attention to the habit of closing the background after using the software. First of all, it can save electricity. Secondly, it can save the processor from working in a high current environment for a long time, thus prolonging its life.

Second, you said that the system will restart after you go back to the desktop to watch other software. It may also be that you open too many background programs or your hard disk is too full, causing the system to crash and then restart. If there is not too much backstage, you can go to Weifeng. Repair a white apple and it should be solved.

Third, you said that five fingers can't switch programs. And it will play and shake when you cut it. This is normal. If you encounter such a problem, try to pull it in the opposite direction. It'll work out. This vulnerability has been fixed in iOS7, so update it!

If you feel uncomfortable, go to the retail store and say "change it for me" to the clerk in a stern tone. This is the after-sales agreement that Mr. Qiao personally ordered for Apple. If he doesn't change, just dial 123 15 and he will change!

I hope pure-handed adoption!