A strong technological nation starts with repairing mobile phones

Chapter 6 I have a friend

"Mr. Zhang, I notice a lot of your CDs are leaking and have screens recently!" Chen Jinghong asked Zhang Heng with an idea.

"Tsk! It's not that there are more recently, there have always been a lot, haven't they? Aren't about half of these CDs always had defective screens?" Zhang Heng smiled and said nonchalantly.

Indeed, the outer screen covers of these CD products have exploded, so it would be abnormal if the screen did not have defects.

Chen Jinghong thought about these screens, and said to Zhang Heng, "I have a friend who has a batch of perfect screens with replaced covers and brackets. Each one only costs about 1,800 yuan. Are you interested?"

"Only 1800?" Zhang Heng calculated in his mind and immediately shouted, "Shit, normally these defective screens can be sold for 600, and after removing the replacement cover bracket, the price will be more than 600-700. It only costs about 1100!"

Chen Jinghong: "Not bad, I thought about it and you can also replace the encryption chip, so hehe..."

"Don't be ridiculous. I've replaced the encryption chip. Who should I sell my old monitor to? Even though the original model can be sold for an extra four or five hundred, it's not cost-effective!" Zhang Heng shook his head and denied it.

What Zhang Heng said was also true. Normally, when the market buys defective screens, the encryption chip must not have been disassembled, otherwise few bosses will want it, and even if they do, they will only pay one or two hundred yuan.

Chen Jinghong thought for a moment, his eyes brightened, and he immediately took advantage of the situation and said to Zhang Heng, "I heard him say that he can replace the old screen and also help you replace the encryption chip. It only costs about 1,400 yuan per unit."

"One thousand four hundred, to replace the perfect screen and keep the original screen encryption chip?" Zhang Heng stared at Chen Jinghong and asked solemnly.

At this moment, his heart has begun to waver. After all, if he only needs to pay 1,400 yuan and the phone can also have no pop-up windows on the screen, then this deal can be done.

After all, the price difference between a perfect screen and a defective screen can be around 1,700 or 1,800 yuan. Not only is the price higher, but the goods are also shipped faster than those with defective screens.

Originally, even if he replaced a perfect screen without replacing the encryption chip, the replacement cost would be more than fifteen hundred yuan. Now, the whole thing only costs fourteen hundred yuan, and his profit increased by four hundred yuan. It is impossible for him not to be tempted.

"Yes, that's what he told me last time!" Chen Jinghong nodded in confirmation.

"Will the screen be damaged?" Zhang Heng asked cautiously, "And how many does he have? You know I need about 200 screens a month!"

Chen Jinghong immediately replied: "It's the same as the market, with a one-month guarantee. As for the quantity, I heard that there are still 500 to 600 yuan a month."

"Really? Are you kidding me?"

"You've known me for more than a year. Do you think I've ever joked with you?"

Zhang Heng thought about it carefully and realized that Chen Jinghong had never made a joke in the past year and had always been very reliable.

Thinking of this, he immediately opened his package and took out thirteen mobile phones from it.

"Well, you can help me find him to replace the screens of these thirteen mobile phones first. I'll see the results and then consider the next cooperation!"

Zhang Heng did not ask for the information of the friend mentioned by Chen Jinghong.

According to his idea, Chen Jinghong must have made a profit, after all, this is the default in Huaqiangbei.

If there is no profit, no one will work for you. Even if they are friends, they will only help you if there is profit.

After Zhang Heng left, Chen Jinghong did not replace the screen directly, but picked up a mobile phone to call the system.

[Item: Apple mobile phone 11pro max]

[Item status: The screen display effect is incomplete! ]

[Maintenance Difficulty: Easy] (Easy/Beginner/Proficient/Mastery/Excellent)

【Maintenance: 1】

[Maintenance technology; remove and replace the cover and bracket (10), repair the poor contact of the screen cable (100)]

Soon a translucent panel appeared in front of Chen Jinghong.

"Sure enough, I can use the system maintenance function directly!" Turning his head to look at the general points which were only 80, he could not afford the maintenance technology at all, so he had to use the system maintenance function.

After clicking the confirm repair button, Chen Jinghong immediately began a detailed inspection.

After carefully looking at the entire appearance of the phone, there is no difference in appearance from before. It seems that the system is indeed the same as the repair screen.

Even though the front and rear glass had been replaced with domestic covers by Chen Jinghong, the system felt that there was no damage at the moment, so it still retained these domestically made glass and had no concept of the original glass at all.

After confirming the appearance, Chen Jinghong immediately pressed the power button to turn on the computer.

After more than ten seconds, the phone turned on, and as expected, the red and green lines on the screen had disappeared. If we don't count the domestic glass cover without an oleophobic layer, then the screen of this phone can be said to be perfect.

After checking the power of the system, Chen Jinghong immediately had the remaining twelve mobile phones repaired by the system one by one.

1…2…5…12.

"Huh? It's been repaired!" After Chen Jinghong finished repairing one machine, he was about to take another one to continue repairing, only to find that all the thirteen machines left by Zhang Heng had been repaired.

Looking at the thirteen mobile phones neatly arranged on the table, Chen Jinghong was so excited that he could hardly calm down.

One machine costs 1,400 yuan, and thirteen machines cost more than 18,000 yuan. Except for the thirteen general points, there is no other consumption in the 18,000 yuan, so it can almost be said to be pure profit.

The screen has been repaired, but Chen Jinghong did not plan to hand it over to Zhang Heng today. Instead, he packed it up and put it in the safe, preparing to call Zhang Heng tomorrow night to ask him to come and pick it up.

In the following time, he once again received an old customer to repair the screen. Although this old customer also had a large flower phone, he was different from Lao Xia and his friends in not repairing defective screens, so Chen Jinghong had no intention of selling screens to him.

The other party put down his phone and left, and Chen Jinghong also began to replace the cover and bracket.

……

【General points: 102】

It was around 2:20 in the morning, and Chen Jinghong was changing the screen all night again. When he was video chatting with Xu Qing just now, she repeatedly advised him not to get too tired.

It's just that it's rare to have a system. After calculating that the general points can exceed 100 after the repairs, Chen Jinghong naturally won't give up just like that. He can only comfort Xu Qing and let her go to bed early.

Chen Jinghong didn't wait any longer and immediately clicked on the 'Repair poor screen cable contact' technique on the panel.

In an instant, the general points on the panel decreased by one hundred, and then Chen Jinghong felt it in a half-asleep state.

I was madly studying the principles of screen technology, and then began to learn what caused lines to appear on the screen.

I started to experiment and try to repair the wire screen. One day, two days, one month, two months, I don’t know how long it took but I finally succeeded in repairing a wire screen.

"So this is how it works!"

After waking up, Chen Jinghong has now mastered the entire wire screen repair process.

Through this study, I learned the principles of the appearance and repair of the line screen.

The wired screen is usually caused by the bottom cable of the screen being broken or damaged due to corrosion or damage, and then this line has no power signal so there is no display.

Currently, all you need is a high-magnification microscope and a laser welder, and you can use laser welding to re-weld the broken cables to complete the repair.

Although the technology is available, there is no equipment on site at the moment, so Chen Jinghong cannot judge whether it is effective.

I had to put aside my excitement, put away the dozen machines with replaced covers, leave the counter and go home.

(End of this chapter)