Hello,I work with tech repairs as a hobby, and I plan for it to become a more serious endeavor in the future , like a real work. However, for that to happen, I need more people to reach out to me to solve their issues.
Today, I discovered that I gave a wrong diagnosis to a colleague of mine at work. I concluded that the laptop's motherboard was damaged. At the time, he reported that the laptop wouldn't turn on, but it actually did, albeit with various problems and in a rather peculiar way.
The PC turned on with the battery only if I took out the battery and put it back in after a shutdown.
The PC turned on but got stuck on the brand logo, requiring a key press to proceed.
The keyboard has a key that sometimes types randomly. Deleting what it typed randomly seems to temporarily solve the issue. (Yes, I've checked for dust or dirt under the key, and I didn't saw anything that could interfere with its operation.)
The left mouse button sometimes won't work correctly, but turning the PC off and on again resolves the problem.
The PC was not turning on if the charger was still connected after shutting down, requiring disconnecting and reconnecting the charger unless any key is pressed before powering it on.
Things I've tried to solve the problems:
Tried a different charger.
Checked for dirt on the keyboard (on the stuck key).
Reinstalled the OS (Windows 10).
Reset the BIOS settings.
Tested the RAM with memtest86 free twice (total of 8 passes) and found no errors.
At the time, I suggested that he seek a technician to repair the motherboard because I lack electronic knowledge for that and wouldn't be able to replace it due to it being obsolete. Apparently, the other technician stated that the issue was with the keyboard and another insignificant part that needed replacement.
What can I do to improve my diagnostics, and how can I handle this? It really brings me down to realize that I considered a computer practically finished when, in reality, the problem wasn't that difficult to solve.
Today, I discovered that I gave a wrong diagnosis to a colleague of mine at work. I concluded that the laptop's motherboard was damaged. At the time, he reported that the laptop wouldn't turn on, but it actually did, albeit with various problems and in a rather peculiar way.
The PC turned on with the battery only if I took out the battery and put it back in after a shutdown.
The PC turned on but got stuck on the brand logo, requiring a key press to proceed.
The keyboard has a key that sometimes types randomly. Deleting what it typed randomly seems to temporarily solve the issue. (Yes, I've checked for dust or dirt under the key, and I didn't saw anything that could interfere with its operation.)
The left mouse button sometimes won't work correctly, but turning the PC off and on again resolves the problem.
The PC was not turning on if the charger was still connected after shutting down, requiring disconnecting and reconnecting the charger unless any key is pressed before powering it on.
Things I've tried to solve the problems:
Tried a different charger.
Checked for dirt on the keyboard (on the stuck key).
Reinstalled the OS (Windows 10).
Reset the BIOS settings.
Tested the RAM with memtest86 free twice (total of 8 passes) and found no errors.
At the time, I suggested that he seek a technician to repair the motherboard because I lack electronic knowledge for that and wouldn't be able to replace it due to it being obsolete. Apparently, the other technician stated that the issue was with the keyboard and another insignificant part that needed replacement.
What can I do to improve my diagnostics, and how can I handle this? It really brings me down to realize that I considered a computer practically finished when, in reality, the problem wasn't that difficult to solve.
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