Address
304 North Cardinal
St. Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
Heavy Samsung W2020 folding screen mobile phone without charging maintenance
Exclude tail plug and tail plug flat cable. Measure the resistance of 5VUSB channel, and fly the wire to the input of charging IC.
Machine model: Samsung W2020
Malfunction: the phone is not charging, and there is no charging icon.
Maintenance process:
Received a Samsung W2020 folding screen mobile phone, fault description. After a heavy fall, the mobile phone doesn’t charge.
First, exclude the tail plug and tail plug flat cable. Measuring the resistance value of 5VUSB channel can be solved by flying the wire to the input of charging IC.
Heavy fall Samsung W2020 folding screen mobile phone does not charge maintenance Figure 1
Heavy fall Samsung W2020 folding screen mobile phone does not charge maintenance Figure 2
Remove the shield, find the charging IC flying wire to the 5V capacitor, start the test, the charging is normal, troubleshoot, and the maintenance is over.
Heavy fall Samsung W2020 folding screen mobile phone maintenance without charging Figure 3
Heavy fall Samsung W2020 folding screen mobile phone maintenance without charging Figure 4
