My iPhone is not connecting to my laptop?

I have a problem with my iPhone not connecting to my laptop. Using the USB cable it will charge my phone but won't come up on iTunes or on 'My Computer'.

I would like to restore my phone completely so I start a fresh and to hopefully see if my flickering screen is a result of a faulty screen (replaced by a phone repair company) or if it is just a coincidence. But my fear is that if I restore it now, I may not be able to get it to work again as it won't come up on the laptop.

Do you know why it is doing this?
I don't think my iPad is connecting to the laptop either.

Many thanks,
Charlotte

Added (1). I have just checked again and found my iPad is connecting to my laptop. So I'm just having a problem with my phone.

Can you still get flappy birds like this?

My brother has got it on his android phone so if he puts the file on his comp can he transfer it to my iphone or would it not work because he has got an android phone?

Super capacitor bank, each 2.7v 2000farad. How many times can it charge my iphone?

I'm going to buy a super capacitor bank, each capacitor are 2.7v and 2000farad. Total there are 6 of this caps connected in series. I'm going to charge this capacitor using my 80watt solar panel. Of course I will use capacitor balancing circuit and a charge controller too which is made and sold by some ebay member. My question is when this caps are fully charged, how many times it can charge my iphone from 0% to 100%?
I have calculated, the total capacitance of this bank is 333farad.
Other question is each of them are 2000farad but when connected in series the total capacitance is only 333farad, so what happened to the rest of the 1667farad?

Why isn't my android receiving texts from iphone?

My husband got an iphone three months ago. Around that time I got an android galaxy III. A about 2-3 weeks ago I stopped receiving his texts. He sees mine but I don't get his. He is the only person whose texts I'm not receiving and I'm the only person who can't see his texts. We tried turning off the imessage but it didn't work.

IPhone 4 (iOS 7.1) stuck in recovery mode?

So I've had some trouble with my iPhone 4 recently, the screen suddenly going black and then restarting, it going blank but not restarting, etc.

When I turned on my phone today, it said that I needed to 'connect to iTunes' and restore it, so I did just that. But when it came down to the program actually installing on my phone I got the message:

'The iPhone could not be restored. An unknown error occurred (21)'

So I tried again and got the message again, but this time error 9.

I changed my cable and this time it was error 4014.

I'm helpless at the moment. How do I fix this?

IPhone 5s charging from dead?

I've had my iphone 5s since Christmas time and yesterday was the first time it had ever completely ran out l battery. This was due to broken charger so I had to wait to get new one. I'm currently using an adapter that changes an old iPhone cable to lighting. When I plug this in it shows the lighting plug and flashing battery. It stayed like this for an hour with no sign of turning on.It never any issues before the battery running out.