6-3-1. No Power

• 1. Symptom
• Description : No display & vibration after press power key.
• 2. Defect Decision Conditions
• Description : The phone no any display & vibration after booting.
• 3. Repair Guide
• Caution : Disconnect battery connector first when it shows.

6-3-1. No Power

6-3-1. No Power

Image

Description

1. Check 'Power Key signal' on the PBA as below.
2. → check R4007 voltage when the charged battery is connected.

R4007 voltage : High(1.8V level)

• → power signal is OK. Change the power key FPCB.
• → power signal is abnormal. Check the step2.

2. Check the VXO22 level(C6113) when power key is pressed during 2~3 seconds.

• -Check if ' VXO22 level(C6113)' is changed from 0v to 2.24v.
• -If its signal is changed, PMIC is OK.

3. If ' VXO22 level(C6113 )' is 0v after press power key, exchange the PBA.

R4007 voltage : Low

6-3. Power, Charging

6-3-2. Reboot during Power on(L3)

• 1. Symptom
• Description : reboot during power on
• 2. Defect Decision Conditions
• Description : The phone is rebooting during power on.
• 3. Repair Guide
• Caution : Disconnect battery connector first when it shows.

Table Caption: This table outlines a troubleshooting process for a device, likely a Galaxy A13 5G, starting with disassembly and checking the battery connector, and proceeding to replacing the PBA if the connection is faulty.