Questions about iphone4 and Nexus s

First of all, the contracted version of the iphone4 is locked. You must be unlocked to use it. The conditions for unlocking require cracking software restrictions, which is what we call jailbreaking.

At present, there is no perfect version of the jailbreak in the version system, and there will be more or less instability. Hongxue said that the perfect jailbreak needs to be released along with the version. Then, if you want to buy the US signed version to unlock it, it is too risky.

After all, there is no perfect jailbreak. Once the jailbreak fails, you have to flash back the firmware, then your phone can't play**.

The unlocked version of Nexus S can be used normally without upgrading or flashing the phone when you get it. You can play ** by inserting the card.

The so-called unlocked version means that --- does not limit the mobile operator, and you can use the card of the selected operator for your own use. The contracted machine is a locked machine, and only the card of the contracted operator can be used. For example, China Unicom IP4 is also the same, and you can only use China Unicom card and its ** service.

Jailbreak --- the sole purpose of jailbreaking was to bypass Apple's iTunes software restrictions and enable free installation and use of third-party software. We often hear about the powerful Cydia, the 91 assistant used by many people in China. Later, a locking movement was added in order to crack it.

So, I suggest that you buy an unlocked version of the iPhone 4, which is $599, and you can use it freely. Unrestricted!

The Nexus S can also be purchased with no bare metal. $529. Currently, Nexus is only contracted with Tmobile. I heard that I was also jailbroken. That is, the highest level of root privilege. But I don't know if I can unlock it!

I don't quite understand the issue of taxes when you talk about them, are you talking about tariffs from the United States to China? It's up to your luck. Luckily, you don't have to pay customs duties. However, I don't know if the U.S. needs to pay personal consumption tax.

The tax for NS customs clearance is about 300-400 yuan. You can drop ship from Bestbuy! :) can also be purchased at **.

The contracted ones can be unlocked, which is very convenient, but they can't be upgraded to the latest system in a timely manner.

529 can be used directly, as long as there is no contract, and the best buy will also be marked with whether there are network operator restrictions.

According to your method, the Nexus S should be taxed at 20%.

In fact, the customs are not necessarily strict, so there is no big problem with bringing 2 mobile phones, you use one, and the other one is basically waiting to be caught. If both units are dismantled, there is basically no problem. It also depends on where you go through customs.

Passed through the capital airport last month. There is nothing wrong with that. 2 mobile phones, just keep them with you.

1, iPhone4 US version of the system above can not be unlocked, can be unlocked.

2,Nexus S is an international version of the phone, so there is really no need to upgrade or flash the phone, and the OS of NS must be. , the latest.

3, nexuss tax should be about 200-400rmb, but you can go to customs or something, hehe.