. Sanshuang Electronics Co., Ltd., located in the technical branch of Seoul City, Nam Cho Kingdom, successfully found the reason why Sanshuang's mobile phone could not be turned on, and also successfully proposed a solution.

Song Wenhua, a twenty-two-year-old genius technical engineer, thought about it for a while and said, "Minister Zheng, I can't answer this question. You should ask a professional, an expert in the cybersecurity department can answer. ”

Song Wenhua is not telling the opposite, but telling the truth. Although Song Wenhua found the reason why Sanshuang's mobile phone could not be turned on, and also knew how to solve it. But Song Wenhua is only a hardware technology engineer after all, not a professional software development engineer.

How to write a piece of software specifically designed to restore and save Sanshuang's phone should be handled by the experts of the Ministry of Cybersecurity, not by Song Wenhua.

Zheng Xiuhai turned around and said to a middle-aged man with a smile: "Minister Che, how is it, do you know how to solve this problem?" How long does it take for a patch tool to be developed? ”

The head of the cyber security department, named Cha Eun-jun, who is a year older than Zheng Xiuhai, thought about it for a while, and did not respond to Zheng Xiuhai immediately, but discussed it in a whisper with a young man next to him.

"Koike, how long will it take?" Cha Eun-joon asked.

The person who was questioned by Cha Eun-jun was a young man who looked twenty-seven or eight-eight, his name was Ji Seung-hyuk, he was the chief technologist of the Cyber Security Department, and he even surpassed the minister Cha Eun-joon in terms of technology.

"Minister, it will take at least an hour of your time, and it will take an hour and a half to be conservative. It should be done by 8 o'clock in the evening at the latest. Ji Seunghyuk said.

Cha Eun-jun nodded, although he is not as good as Ji Seung-hyuk in terms of technology, but Cha Eun-jun is not a novice in technology. Even if the solution proposed by Song Wenhua is simple. It's really easy to do, but their repair environment is not the same as the user's repair environment.

With the help of Sanshuang's internal testing instruments, they can directly enter the bottom layer of the mobile phone operating system, or they can directly modify the source code. How is it possible for a user to do this?

Therefore, they need to develop a patch tool, which needs to determine the storage of the Sanshuang phone when it is connected to the computer with a guò USB cable. And then. It is also necessary to judge the connected Sanshuang mobile phone, which model it belongs to.

The work of these two steps is simple, but the third step is a little more difficult. You need a patch tool to scan the source code of the entire Sanshuang mobile phone system, and find the code that matches the 'shielding wall'.

Once you find the code for the 'wall', you need to delete it from the source code of the mobile system. If the 'shielded wall' code layer is unchanged, then this step is pretty straightforward. But what if the code for the 'shielded wall' changes?

Ji Seung-hyuk pondered the question. Then he asked, "Brother Song, what should we do if the code of the 'shielding wall' will change?" ”

Song Wenhua's face remained unchanged, as if this question had already been expected by him.

"Brother Chenghe, I said it before, temporary patch tool. It's just one of those schemes, and it's a simple one. The other scenario is more complex. But it can solve any problem. Song Wenhua spoke.

Ji Seung-hyuk asked, "What complicated plan?" ”

"We have developed a Sanshuang mobile phone management software, when the Sanshuang mobile phone is connected to the USB cable management software, the guò management software is passed, and the operating system is re-written for the mobile phone, and the original mobile phone system with problems is deleted. In this way, there will be no problems with the rebuilt system. And, no matter how the 'wall' code changes in the original system, it doesn't matter. Song Wenhua proposed a plan once and for all.

"Management software? Our Sanshuang company currently has a mobile phone management software, but there is no function to rewrite the system. Brother Song, in fact, this plan is the easier way. Rewriting the phone system, although it feels cumbersome and time-consuming, is all the user's time. We only need to provide the function of writing to the mobile phone system with one click, and then show the remaining time for the user, and the user will not find it troublesome at all. Ji Seunghyuk said with a smile.

Hardware engineers and software engineers have some differences.

In Song Wenhua's view, it is very time-consuming to write the mobile phone operating system for the mobile phone hardware again. Also, there is a possibility of burning the hardware of the phone. Because users use USB cables to write a number of jù, the current intensity cannot be accurately controlled, and it is not impossible to burn the hardware of the mobile phone in case of abnormal current fluctuations.

In addition, if the mobile phone operating system is rewritten, the user's original information will definitely not be saved. From Song Wenhua's point of view, this method is indeed more complicated and unscientific.

But Ji Seung-hyuk is a software engineer, and in Ji Seung-hyuk's view, the best way to solve the problem once and for all is to solve the problem. As for the risk of rewriting to the system, that's a user thing. As long as the interests of the vast majority of users are guaranteed, the interests of a small number of users can be ignored for the time being.

As for the user information problem that Song Wenhua is worried about, it is actually not a problem. Because the Sanshuang mobile phone is not that it can't be turned on, but is shielded by the 'shielding wall' code, if it is connected to the Sanshuang mobile phone management software through the guò USB cable, they add a data backup function to the management software.

After some discussion between the technical department and the network security department, the second treatment plan was chosen, which directly rewrote the operating system for the mobile phone and added the data backup function, which is the best of both worlds.

No!

There should be a third benefit, that is, to write the mobile phone management software to rewrite the system function and data backup function, it only takes half an hour, it does not take more than an hour at all, and it can be completed before seven o'clock at most.

For Sanshuang Electronics Company, the time is really very expensive, the sooner the problem of Sanshuang mobile phone can not be turned on, the stock dilemma of Sanshuang Electronics Company and Sanshuang Group Company, the easier it will be to be solved. The reputation of Sanshuang's mobile phone can also be saved.

Shi Lei has been paying attention to the situation of the Southern Dynasty Guosanshuang Company, and at the same time. Mu Shuang also told Shi Lei about the situation of the stock market in the Southern Dynasties at any time.

"Shi Lei, the stock of Sanshuang Electronics Company. The total decline has reached 31.7 percent! Mu Shuang's tone was filled with surprise.

Shi Lei smiled and said: "Frost, have those international tour funds joined us?" ”

"Not yet! However, it was some local investors in the Southern Dynasties who chose to take advantage of the fire to rob Sanshuang Electronics Company and joined us in shorting the shares of Sanshuang Electronics Company! Mu Shuang said with a little contempt, as if mocking the investors of the Southern Dynasty. It's the same if you don't unite and don't love your country.

In fact, such a situation would have happened in the Xia Kingdom. And it's not surprising at all. Compared with the disunity of the Southern Dynasties, the people of the Xia Kingdom should be better, right? Otherwise, how can there be a saying that the people of the Xia Kingdom are one dragon and the two Xia people are two worms?

This trait is found in any country. Especially in profit-oriented capital markets.

"Oh? How much capital has joined our ranks? Shi Lei asked curiously.

Mu Shuang has the support of the Cloth Pawn. She was quite clear about the situation in the stock market of the Southern Dynasties, and she directly gave a number, "It's not much, it's only a little more than 100 million US dollars at present, and it should be some private investors and private funds." If the stock of Sanshuang Electronics Company continues to fall, or Sanshuang Electronics Company cannot deal with the problem that the mobile phone cannot be started, there will definitely be more capital and choose to target Sanshuang Electronics Company and the entire Sanshuang Group Company. ”

"Hmmm! Frost. Don't worry, Sanshuang those sticks. How can it be my opponent? Shi Lei said with a smile.

However, as if it was like a slap in the face, Shi Lei had just bragged to Mu Shuang, and Yi Shuer issued a prompt.

"Sir, the homepage of Sanshuang's official website, issued a user announcement, indicating that Sanshuang has successfully solved the problem that Sanshuang's mobile phone cannot be turned on."

Because this matter is related to the work of Shi Lei and Mu Shuang, the notification information is a parallel processing thread, that is to say, Yi Zuer notified Shi Lei and Mu Shuang at the same time.

Sure enough, after Mu Shuang listened to the notification information, he immediately said to Shi Lei teasingly, "Shi Lei, Sanshuang Company is indeed not your opponent!" ”

Shi Lei said embarrassedly: "Shuangshuang, you wait a while, I'll deal with the problem of Sanshuang Company first!" After finishing speaking, Shi Lei immediately opened the homepage of the official website of Sanshuang Electronics Company and checked the user announcements they released.

……

"Fully restored, impeccable! 》

Dear Sanshuang users, hello!

For the problem that Sanshuang's mobile phone cannot be started, our company expresses our deep apologies. After our investigation, it was found that the large-scale failure to turn on the Sanshuang mobile phone was a malicious attack by hackers.

After our efforts, one hour and seven minutes after the incident, our company came up with a solution.

Please go to this page, or the official homepage of Sanshuang mobile phone, download the 'Sanshuang mobile phone management software' and install it on your personal computer.

After successfully installing the Sanshuang phone management software, as shown in the figure, connect the Sanshuang phone that cannot be turned on with a USB cable, then open the Sanshuang mobile phone management software, and select to back up personal information.

Users are requested to back up relevant information according to their personal needs. Warn! If you don't choose to back up, you will lose all your phone's data.

After the data backup is completed, please select the recovery phone system, and the Sanshuang mobile phone management software will automatically restore the operating system of the mobile phone for the user. In particular, do not disconnect the USB cable and do not turn off the computer during the recovery of the mobile phone system. Otherwise, Sanshuang Company will not be liable for the consequences of being severe.

This software supports Win system and MAC system, does not support Linux and Unix system temporarily, please forgive me.

……

Shi Lei looked at the announcement of Sanshuang Company, his expression was stunned, he thought that Sanshuang Company would make various reactions and solutions, but he did not expect that Sanshuang Company actually made a plan to rewrite the mobile phone system.

The mobile phone of the 2008 era is not the Android smart machine of the later generations, the system is written casually, and the mobile phone system of this era is not easy to rewrite.

Shi Lei originally thought that Sanshuang Company would find the code of the 'shielding wall', so he developed a patch tool specifically for cleaning the 'shielding wall' code, similar to a virus killing tool.

If Sanshuang Company really chooses such a solution, Shi Lei is ready to change the source code of the 'shielding wall' and replace it with dynamic code. Naturally, the dynamic 'shielding wall' code cannot be killed by the special killing tool, so that Sanshuang's patch tool will be invalid.

But Shi Lei miscalculated!

Sanshuang Company was indeed preparing to develop a patch tool, and even Song Wenhua had proposed this plan, but it was only blocked by the Ministry of Cybersecurity.

Cybersecurity departments are well aware of how bad compatibility similar killer tools can be. So it's not possible for them to adopt the patch tool.

So, in the end, I chose the most secure plan. Sanshuang's solution directly made the follow-up plan prepared by Shi Lei stillborn. However, how could Shi Lei give up?

Sanshuang company chose the most unexpected plan, then we must be prepared and bear the most unexpected ending!.

(To be continued......)