What does it mean when Aisi Assistant requires a password to download weather forecast?

1. Preparation

1. Original connection data cable (this is very important! It will be discussed below);

2. Choose the best computer USB interface (such as the back end of a desktop computer, and it is not loose);

3. Turn off the screen saver of the computer (this is not necessary, but because some passwords take a long time to obtain, in order to facilitate Observation, I personally still recommend this);

4. The last is the most important: be patient (generally the time is much longer than flashing and jailbreaking), and have confidence (confidence in Aisi Assistant) )

2. Start-up operation to obtain the power-on password

1. Connect the mobile phone to the computer (make sure the connection cable is tight and the USB interface is not loose), and open the AISI Assistant;

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2. Click "Advanced Player" in the "Toolbox" of AISI Assistant;

3. Click "Read Device Power-on Password" in the menu on the right. AISI Assistant displays as follows:< /p>

4. Manual operation to enter DFU mode: If AISI wants to obtain the power-on password, it must enter the kernel of the device's IOS system. Therefore, it is necessary to ensure that the device enters and is always in DFU mode ( Entering DFU mode is the most basic skill that forum friends must master. The method is clearly marked by Aisi Assistant, so I won’t go into details again)!

3. The process of obtaining the power-on password

Once the device enters DFU mode, AISI Assistant immediately begins to "obtain the power-on password"! The display is as follows:

At the same time, the screen of the mobile phone will immediately display white data scrolling upward:

Through the display in the above picture, I believe friends in the forum should understand why I say it must be Have you ensured the "original connection data cable" and "good USB interface"? !

Friends only need to think about one question: What is the function of "power-on password"? It is to prevent others from operating your phone! This is equivalent to IOS setting up a "firewall" for all applications! Aisi Assistant must enter the kernel of IOS to obtain it! In this process, Aisi Assistant needs to "exchange" a "huge amount of data" with the device through the USB interface and connecting data cable! Friends who know a little bit about "data transmission" all know that during the transmission process, not a single error code can occur! As long as an error occurs, it will cause the "entire data packet" transmission to fail! Naturally, it is impossible to obtain the power-on password!

Some friends will ask: My device can be connected to Aisi and can enter DFU mode. There should be no problem with my connection data cable and USB interface, right? ! This view seems reasonable, but in fact it is completely wrong:

1. The connecting data cable is multi-core, and the connection between the core wires is actually a capacitor, and the multi-core cable is Synthesis of multiple capacitance distributions! Only the original connecting data cable has the "best matching interface impedance" (the counterfeit ones are impossible to match)!

2. The same is true for the USB interface! The USB interface on the front of the computer will become loose and have poor contact due to frequent use! This will lead to "interface impedance mismatch"!

Therefore, the mismatch of interface impedance will not affect simple connections and the transmission of small amounts of data! But for the transmission of large amounts of data, it is fatal!

Although I am young, my major is digital transmission. So, I have this basic expertise!

4. Obtaining the power-on password is completed successfully

During the entire acquisition process, friends only need to wait patiently without any operation (although the computer can be multi-tasked, I personally do not recommend it. Friends, please do other things during this period! Computers are a mysterious thing. After playing with them for many years, who can say that I can master them all?) Aisi Assistant will automatically do the work for you! Finally, the password was obtained successfully! Aisi displays as follows:

Because I was doing an experiment, I set a very simple password: 1234.

Despite this, the acquisition time was 4 minutes and 41 seconds! It took me longer to root and jailbreak my phone!

In order to verify the reliability of Aisi Assistant again, I set a complex password, and Aisi Assistant was successful again! The display is as follows:

This time it lasted 26 minutes and 53 seconds! Now friends in the forum should know why I want to say: you need to have enough patience and have enough confidence in Aisi Assistant, right? !

5. Inspiration for us

1. Aisi Assistant obtains the power-on password, currently only supports iPhone 3GS and iPhone 4! Not supported for iPhone 4S and iPhone 5! Because they use A5 processors, the CPU architecture is completely different! Therefore, friends who use iPhone 4S and iPhone 5 should carefully save their power-on password! Once forgotten or lost, Aisi Assistant is currently helpless!

2. Aisi Assistant obtains the power-on password, which currently only supports "4-digit password"! Forum friends only need to think about it: taking the 10-digit numbers from 0 to 9 as an example, there are thousands of non-repeating 4-digit permutations and combinations (3000 according to the Internet); and if there are repetitions, the 4-digit numbers will be There are nearly 10,000 permutations and combinations (9999 according to the Internet)! Forum friends, be sure to set a password no longer than 4 digits! Otherwise, Aisi Assistant is currently helpless!

3. Aisi Assistant is a computer software that runs automatically without any human factors involved, so it will not make mistakes! The devices of friends in the forum are very different, and there will be various human intervention and operations before reading the password! For example, a forum friend mistakenly believed what was said on the Internet and deleted the file related to passwords in the IOS system (although the IOS system automatically added this file, the content of the file was completely different)! In this way, can I still get Aisi Assistant? !

Therefore:

(1) Once the password is forgotten, forum friends should not do any other operations, but should use Aisi Assistant to read it immediately!

(2) If the acquisition fails, first check (cable, USB interface, including computer) and reflect (whether there are other misoperations)