mijobooks Chapter 8 Cleverly Overcoming the Rights Protection Farce
Chapter 8 Cleverly Overcoming the Rights Protection Farce
"Who wants to go first?" Lin Feng asked.
Liu Wei, steeling himself, handed over his malfunctioning MP3 player. Zhang Qiang and Li Lei followed suit.
Three silver machines were placed side by side on the table.
At this moment, Zhou Yang frowned in the back row and stopped drinking the cola that was about to his lips.
"What the hell are they up to?" he muttered to himself.
The multi-functional hall fell completely silent, and everyone's eyes were fixed on Lin Feng, waiting to see how he would handle the situation.
Lin Feng picked up an MP3 player, plugged it into the charger Wang Peng handed him, and pressed the power button, but nothing happened.
He plugged it into the computer's USB port again, but there was still no response.
He picked up the screwdriver.
"Before we disassemble it, I have a few questions to ask." Lin Feng looked up at Liu Wei. "What do you usually use to charge it?"
Liu Wei was very flustered; he had never used it after buying it.
"Just... a phone charger."
"What brand is it?"
"Nokia, what's wrong?"
Lin Feng didn't answer. He took out a multimeter from his toolbox and borrowed a Nokia ACP-7 charger from his classmate. It was a black square with a thin round plug.
He plugged the multimeter into the charger and held it up for everyone to see.
The numbers on the dial jumped a few times before stabilizing at 5.8V.
Lin Feng picked up the standard charger again and tested it: 5.0V.
He placed the two chargers side by side on the table and pointed to the watch face:
"As you can see, this Nokia charger outputs 5.8 volts, while a standard charger outputs 5.0 volts. MP3 players are very sensitive to charging voltage. Using a charger with excessively high voltage can easily burn out the power module."
He looked sharply at Liu Wei: "So, the reason this machine can't be turned on is most likely due to improper charging."
Liu Wei hurriedly explained, "Impossible! I've always charged it like this, and nothing's happened before!"
"Just because it was fine before doesn't mean it will always be fine," Lin Feng said seriously. "Voltage fluctuations and instantaneous pulses can cause damage. It's like a light bulb; if you use a normal voltage, it might burn for a long time. But if there's a sudden high voltage, it'll burn out."
Zhou Yang, sitting in the audience, sensed something was wrong. This kid… actually knows something?
But he quickly adjusted his expression, forcing a disdainful sneer, and said to the classmate next to him, "Playing tricks, who would believe that?"
The classmates around him did not respond.
On the small stage, Lin Feng picked up a screwdriver and began to disassemble the machine.
The four screws on the back cover were unscrewed one by one, the metal back cover was peeled off, revealing the circuit board inside.
Then, he turned on the flashlight, pointed it at the circuit board, and gestured for the people in the front row to come closer to take a look.
"Look at this area, everyone!" He pointed with a probe to several solder joints near the power management chip.
"This is the power management module, which is responsible for converting the charger's voltage into a stable voltage that can be used by MP3 players."
He aimed the flashlight at the solder joint, illuminating the spot of light clearly.
The weld points were dull and pitted, with some small cracks in some places.
"A normal solder joint should be full, round, and glossy."
He took out a brand new, unopened machine, quickly disassembled it, and pointed out the solder joints for everyone to compare. They were indeed full and rounded, gleaming with a silvery sheen under the flashlight.
Lin Feng explained to the members in a calm and unhurried voice:
"There is only one explanation for this solder joint condition: it is a result of repeated and intense thermal expansion and contraction within a short period of time. In layman's terms, it has been subjected to repeated high-voltage instantaneous impacts, followed by cooling, then impacts again, and then cooling again. After several such cycles, the solder joint ends up like this."
If it were damage from normal use or a quality defect, the damage points should be random, and the marks wouldn't be so regular. But damage concentrated in the same area and exhibiting the same characteristics...
He placed the two machines side by side and invited the members to the stage to see and compare them carefully.
He added, "From an engineering perspective, I am more inclined to believe that this is the result of destructive testing with a specific purpose, beyond the scope of normal use."
These words sparked whispers in the hall.
Some people suddenly realized.
A bespectacled boy in the front row yelled, "This was burned on purpose, wasn't it!"
Everyone heard him clearly.
Lin Feng nodded: "This student is right."
When the club president praised him, the boy's face suddenly turned red, and he muttered under his breath, "I was just making things up... I just failed my circuits class last semester..."
Several people around burst out laughing.
"So it was intentional!"
"I was wondering why all three of them broke down at once..."
"That's so unethical!"
Discussions arose again, but this time, the winds had completely shifted.
Countless gazes were directed at Liu Wei, Zhang Qiang, and Li Lei, their eyes filled with disdain.
Lin Feng clapped his hands, signaling everyone to be quiet. Then, facing Liu Wei and the other two, he said seriously:
"Based on current technical testing, your situation does not meet the warranty conditions for 'non-human-caused damage.' Your request for a refund is unfounded."
"You're talking nonsense..." Liu Wei's lips trembled, but the solder joints were right there on the table, and it was obvious to everyone around who was talking nonsense.
Lin Feng didn't stand on ceremony with the other party: "I will keep these three machines and send them back to the manufacturer for final evaluation."
If it's a factory defect, I will replace it with a new one as per the warranty. But if it's damaged by human error, I will also inform everyone of the result. Three students, please go back now! Our music sharing session will continue." Lin Feng's tone remained restrained.
But Li Hao wouldn't stand for it; he wanted to stand up for his roommates. Pointing at Liu Wei and the other two, he angrily rebuked them, "President, why are you being polite to these troublemakers! I propose we remove them from the music club roster! Our club doesn't need people who deliberately cause trouble!"
That shout was like igniting a powder keg.
"Yes! Fire them!"
"Get out!"
"Don't interrupt our music listening!"
The crowd was outraged. A group of senior members immediately stepped forward, forming a circle and trapping Liu Wei and his two companions in the middle.
Liu Wei's face turned deathly pale. He tried to explain, but found that none of his prepared explanations worked.
Zhang Qiang and Li Lei behind him were even more at a loss, their eyes darting around.
"I...we..." Liu Wei suddenly remembered a few days ago in Zhou Yang's dormitory.
At the time, he imagined that after the attack, Lin Feng would be busy explaining, but the more he explained, the more confused things would become. When public sentiment is high, any explanation is futile.
How did it become something I can't explain...?
In despair, Liu Wei instinctively looked to Zhou Yang for help. This glance was caught by many classmates who were following his gaze, searching for the "mastermind"!
In a flash, many eyes focused on Zhou Yang.
Zhou Yang was about to quietly turn his face away when he realized that he was being stared at by dozens of eyes.
His classmate next to him looked at him curiously: "Hey, why are they looking at you?"
Zhou Yang's face froze, and he could only manage a couple of dry laughs: "I don't know either..."
"Get out! Get out!" This group of music enthusiasts even had such a rhythmic way of seeing off their guests.
Amidst the scornful gazes and condemnations from the crowd, Zhou Yang could no longer bear it and abruptly stood up, intending to slip away.
Because he stood up too suddenly, his knee slammed into the metal leg of the folding chair in front of him with a "bang," causing him to gasp in pain and almost fall over.
He endured the pain, lowered his head, and hurriedly squeezed his way out, only to be bumped on the shoulder by someone rushing in at the door.
Finally, with his left hand on his shoulder and his right hand covering his knee, he limped away and disappeared at the end of the corridor.
Liu Wei, Zhang Qiang, and Li Lei followed Zhou Yang, heads down, pushed through the crowd, and left the multi-functional hall in a disheveled state.
At that moment, someone started clapping. The sparse applause quickly grew into a continuous chorus, becoming louder and more enthusiastic.
Someone shouted, "The club president is awesome!"
Lin Feng stood on the stage and gently exhaled.
The applause lasted for quite a while before gradually subsiding.
"It was an unpleasant little incident, and I hope it didn't affect everyone's mood. What just happened serves as a reminder that understanding technology can help us distinguish between truth and falsehood and protect ourselves."
"The original intention of the Digital Music Club has always been to share good music, spread valuable digital knowledge, and create a clean and pure interest circle."
Shen Jingyi, holding her guitar, stepped forward and said, "President, I'd like to share another song with everyone, 'Childhood'."
"Great!" Applause rang out again.
The girl walked onto the stage with a guitar in her arms, a smile on her face, and gently plucked the strings with her fingers.
The clear sound of the guitar flowed back, this time more tranquil and warmer, like a gentle breeze that dispersed the previous clamor.
Some people hummed along softly, some closed their eyes, and some smiled.
The sound of the guitar is like a stream, flowing gently through everyone's heart.
At this moment, the Sichuan University of Technology Digital Music Club truly felt like a home.