Why can t my Apple 4S get on the 3G network after upgrading to iso7?

Try resetting your network settings

Reasons why iPhone phone won't go online:

1.Make sure airplane mode is turned off;

2.Check what is displayed in the upper left corner of the iPhone display, how many bars is there for the signal, 5 bars is full. If there is no problem with the signal, check what is displayed behind the operator, 3G is in a 3G network environment, E is, and the letter O stands for in a 2G network environment, please try to change your location or try outdoors;

3.Check whether the SIM card on the server is normal, and check whether the SIM card supports and has enabled the Internet access service of the NET access point.

4.Reset network settings;

5.Reseat the SIM card;

6.Restore your iPhone, make sure you are using the latest version of iTunes. Next, connect your iPhone. In the left column under "Devices," tap your iPhone, then tap "Restore" in the "Summary" tab.

Excluding the above methods, it is recommended that you change the phone to test, if the SIM card can not be connected to the Internet on other mobile phones, then it is judged to be a problem with the card, you can call 10010 manual or go to the business hall to check whether the card's Internet data is normal.

Is there any built-in software that has not been deleted?,For example, the kind that compresses traffic.。

This is because there is a fault caused by a locked machine, which can only be solved by flashing back to the original system, and the steps are as follows:

1. The mobile phone enters DFU mode, steps: when the phone is turned on, connect it with the computer with a data cable. Press the shutdown button for 2 seconds; Then, press and hold the power off button and the home button at the same time for 8 10 seconds; Finally, keep holding the home button for 15 seconds.

2. Check whether you have entered DFU mode correctly: In DFU mode, the phone is black. If it doesn't work, redo the first step.

3. After entering the DFU state, iTunes checks the iPhone in a recovery state, you can see that there is a recovery button, at this time, hold down the shift key of the keyboard, and then click the left mouse button"Recovery", a window appears, find the path of the firmware, and then double-click your ** good firmware, and then iTunes will automatically recover, don't pull the data cable during the process, don't move your iPhone, just wait quietly.

4. A window will pop up after iTunes recovery is completed"Your iPhone has been restored, and the window will automatically close after 10 seconds", close this window, and then unplug the data cable, do not use the computer to activate the iphone, activate the system on the end of the mobile phone pants will be purer.

You use the thing China Mobile put.

Parallel imports, parallel imports have to install plug-ins for the Internet!

Hello, it's a system issue, sit back and wait for a patch or downgrade! At present, ios7 has just come out of the unstable, and there are many vulnerabilities! Imperfect! Personally recommend downgrading! Wait for the stabilization to be upgraded.

I'm talking about UI because the visual aesthetic is different from person to person. There are many advantages after iOS 7 upgrade, but the disadvantages cannot be ignored.

2. The control center slides up from the bottom of the screen, adding switch functions such as wifi, **, flashlight, etc.

3. Third-party input methods can be used. (But it's not sure if there is an input method for the nine-grid palace).

4: You can block incoming calls and text messages. (No doubt is true).

5. Added the security and anti-theft function, bound to the Apple ID, others must enter the correct Apple ID to activate, even if the system is re-flashed, it is also required to enter the Apple ID.

Disadvantages: 1. Multi-task management has been replaced by real background running software, and the current market is a device with small memory except for iPhone 5 memory that has reached 1G, so the memory is obviously insufficient. (As a result, the operation is not smooth, and the keyboard sometimes does not pop up).

2. Power consumption, no doubt that this is certain. Really in the background, there is also a shake phone wallpaper exchange, which is enough to increase power consumption.

3. Other shortcomings will be discovered and supplemented later.

Recommendation: Personally, I recommend not to upgrade unless you like the new UI and need to use security features. In fact, ios7 has strict hardware requirements, especially memory, 4, 4s will seem a bit insufficient.

Hope it helps! Hope! Thank you!