Recently, isafari, a digital store in Guangzhou, launched a mobile 3G network card sticker dedicated to the iPhone 5S and sold it to the public at 148 yuan. Many people yelled that they were being punished. In fact, many iPhone players are familiar with online cracking. The most common way is to crack locked iPhones (Japanese version, American version, etc.) through stickers. Many mobile TD cracking stickers for the Hong Kong iPhone 5S have been launched in the market, and we have also verified them through actual measurement.

The following test is only for the Hong Kong iPhone 5S/5C. The test machine is the Hong Kong iPhone 5S (code A1530), and the system version is iOS 7.0.3.

What we tested is a card sticker named "GPP" brand, which has been marked on the package as a mobile 3G card sticker dedicated to iPhone 5S and 5C port versions, and there is a special card slot, card cracking sticker and card pin ▼ in the package

According to the merchant, the card slot is "modified from the original factory". In fact, it can be seen that the simulation degree is relatively high ▼

Before installation, make sure that the special nano SIM is used. If the card is cut, the card must be thinned with sandpaper. If the SIM card is too thick and the card sticker is added, it will not be installed in the card slot. Mobile users can change the dedicated nano SIM ▼ for free as long as they go to the business hall to handle relevant procedures

Put the card into the special card slot and pay attention to the installation method ▼

Re load the SIM card and it will work normally ▼

After the cracking card is loaded, the mobile 3G signal may not be searched. At this time, you can try to set → general → restore → restore network settings and try to search for 3G signal (if necessary, you can select "erase all contents and settings", and end up with the same...) ▼

After restarting, go to Settings → Cellular Mobile Network to open data roaming, and then click Cellular Data Network Settings APN ▼

Here, you only need to join the APN of CMNET to connect to the network, and the user name and password do not need to fill ▼

After the connection, we can see the moving "China Mobile 3G" signal. Go to System Settings → General → About the network visible on this machine, such as the fake China Mobile network ▼

Of course, you need to run a minute when you are on 3G. You should routinely use Speedtest to measure the network speed. Xiaobian made a test near Shenzhen Nanshan District Science Park (the mobile 3G signal here is poor), and the result was not very good, especially the upload was only poor 3.4kB/s ▼

Another test at the high-rise building in Futian Central District, Shenzhen, achieved a lot of good results, and the downward direction has been close to 180kB/s ▼

In the process of use, although the signal strength is not strong, it can still be connected to the place where there should be a TD network. Once the signal is too poor and becomes EDGE network, it can also be switched back to TD normally. Generally speaking, this attack is successful. We have successfully implemented the TD-SCDMA network on the Hong Kong version iPhone 5S, which is also "the first iPhone that can access the TD network so far". Mobile users finally do not have to endure the low speed of EDGE. The next problem is the mobile 4G TD-LTE network. If it can also be used normally, the Hong Kong version iPhone 5S is really a network cracking artifact.

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