Two IPhone4 on the same computer, one can be recognized, and the other can only be charged, why?

One iTunes can only recognize one phone, and if two are plugged in at the same time, of course, only one phone can be recognized.

You have a problem with iTunes, you can delete one of the files on it, but I forgot which one.

Is iTunes installed, if the same phone is to be used on different computers, you need to authorize the computer, a total of 5 units.

Originally, at most, it could only be used to transmit data from one machine.

Is your problem solved? I also have the same problem, it only shows charging, nothing happens.

It can be synchronized,But it will delete the software on other accounts that were previously synchronized,Before syncing on iTunes,Check the option of syncing software in iTunes,There will be a prompt,Prompt whether you want to sync and erase data,Select Yes,Then check the software you want to sync,Then click on the synchronization below on it,If you don't understand, you can continue to ask,I'm curious,How do you say that the synchronization is not displayed?

Do you mean syncing two devices at the same time?

Check to see if any machine has turned on the firewall or turned off the ICMP echoback. Or if you have a problem with the network cable, remember to use a crossover cable.

At both ends of the network cable, one end is equipped with a 586a playing method for crystal heads, and the other end is equipped with a 586b playing method for crystal heads.

Generally, it is a system problem, you can make the system of two computers into one CD, so that it can generally be solved.

It has little to do with the A B line sequence, and now it's basically an adaptive network card, whether it's a cross cable or a straight cable, there is generally no problem.

I don't know what you're trying to achieve.

If you want to simply implement file sharing between two hosts, then you need to put both hosts in the same workgroup, if you don't make changes, it may be in the workgroup, or it may be in mshome, this change can be right-clicked "My Computer" - properties --- computer name where it should be, all unified in a workgroup is easy to say.

If you want to connect both computers to the public network, and this public network needs a dial-up connection, then you need a router, not a switch.

Ping that computer doesn't work, change the network cable.

It is estimated that your mobile phone is a two-sock cover to tell God, and the hardware driver of the Apple mobile phone can only be equipped with one computer. This is a bugOfficially, it is not known when the patch will be released.

You won't be using a touch with apple peel?

When you connect to the iPhone, you can cancel the account.、iPhone can only correspond to one computer.,But a computer can deal with countless iPhones.,As long as you don't want to make a home environment, it's OK.,And now iCloud is also backing up data.,Be careful that the account is not good to enter the string.。 Good luck.

Shift-click on the iTunes icon and select Create Library. You can take a name and separate it. For example, I'll divide the names iPad and iPhone into two names, just in case there is confusion.

If you want to switch, you can also hold down shift and click on the iTunes icon, then click on the folder, and click on the one you want.

This one works very well, I love it, completely independent.

Your friend's mobile phone software is different from yours, and it can't be synced if he doesn't have authorization for the computer!

Log in to the same ...... on your phoneAlso, the authorization is not?