Lenovo G40-30 notebook water damage can't be turned on. After testing, it was found that the 5V chip corrode was damaged, and the fault was repaired after replacement.
The alien M17 laptop computer didn't respond when it was turned on, and the oscilloscope caught the waveform to find the fault point, which was perfectly repaired.
CLEVO system P775TMMB-0D notebook startup alarm Won't Turn On, fault repair after flying a line.
DELL PP39L laptop Won't Turn On, repair after replacing R167.
MacBook A1502 notebook Won't Turn On, repair after replacing ISL6259.
Asus VM510L uses the notebook without charging. Replace the small resistor, and the charging is normal.
DELL 3421 notebook computer Won't Turn On, after testing, found that PURE_HW_SHUTDOWN#unstable caused ECRST to reset constantly, and the fault was repaired after replacing D3601.
Lenovo ThinkPad T460 notebook does not charge, screen flashes, running line measurement leads to finding the culprit.
Lenovo V470 laptop Won't Turn On, after detection found that q2802 is bad, causing ecrst and 3V_5V_EN is abnormal, and the fault is repaired after replacement.
