Samsung Galaxy A13 Charging Port Board Replacement Guide

Hi everyone, welcome back to DIYGeardo.

Today, we’ll show you how to replace the charging port board on the Samsung Galaxy A13 4G mobile phone.

If your device is not charging properly, disconnects when the cable is moved, or if the bottom microphone is not working during calls, voice recordings, or video recording, replacing the charging port board is often the correct solution. The charging port board on the Galaxy A13 4G includes the USB charging port, bottom microphone, and antenna connections.

Before starting the repair, make sure the phone is powered off and you have the right tools, which you can find linked in the description.

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Estimated Repair Time

⏱ 25–35 minutes

Repair Difficulty

🛠 Moderate

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Compatibility and Model Numbers

This repair guide based on Samsung Galaxy A13 4G device, but it also compatible with Galaxy M13 4g and Galaxy F13 models.

Compatible Mode Numbers l SM-A135F, SM-A135F/DS, SM-A135M, SM-A135U, SM-A135U1, SM-A135N, SM-A137F, SM-A137F/DSN, SM-A137F/DS, SM-M135F, SM-M135F/DSN, SM-E135F, SM-E135F/DS

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Before You Begin

Required Tools

• Heating pad / heat gun / hairdryer
• Suction cup
• Plastic card pry tools / opening picks
• Phillips screwdriver
• Adhesive (B7000 or double-sided back cover adhesive)
• Bonding clips or rubber bands (optional but recommended)

Make sure the phone is turned off and the SIM tray is removed before starting.

How to Find Tools and Parts

• Heating pad – https://amzn.to/3H0tHzJ
• Portable Heat Gun – https://amzn.to/4mszih1
• Clamps https://amzn.to/3GYJT4w
• STREBITO 142 Piece Repair Tool Kit https://amzn.to/3UO1jUx
• Glue | Adhesive https://amzn.to/46exVxe
• Compatible Parts –
  • Battery – https://amzn.to/4mwa41Z
  • Screen – https://amzn.to/4n0XV4X
  • Other Parts – https://amzn.to/41lzman
• Silicone Work Repair Mat https://amzn.to/45Emz5l

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Step-by-Step Repair Instructions

Step 1: Power Off & SIM Tray

First, turn off the phone completely.
Remove the SIM tray and prepare the device for back cover removal.

Step 2: Remove the Back Cover

Create a gap near the SIM slot or charging port using a picker or plastic card pry tool.
Insert the pry tool and gently move around the phone to release the plastic clips on the frame.

⚠️ Be gentle when lifting the back cover, as the fingerprint sensor flex is attached.

Step 3: Remove Board Cover & Disconnect Battery

Undo eight screws securing the board cover and remove it.
Disconnect the battery connector, then disconnect the fingerprint button flex to fully release the back cover.

Step 4: Remove the Speaker Cover

Undo eight screws securing the speaker cover at the bottom of the phone and remove it.

Step 5: Disconnect the Charging Port Board

Disconnect:

• Two antenna heads
• Secondary LCD connector

Next, undo the screw securing the charging port board.

Step 6: Remove the Charging Port Board

Carefully lift and remove the charging port board from the frame.

Step 7: Install the New Charging Port Board

Place the new Galaxy A13 4G charging port board into position.
Secure it using the screw removed earlier.

Reconnect:

• Secondary LCD connector
• Both antenna heads

Step 8: Reinstall the Speaker Cover

Reinstall the speaker cover and secure it with eight screws.

Step 9: Reconnect Battery & Board Cover

Reconnect the fingerprint button flex.
Reconnect the battery connector.
Reinstall the board cover and secure it using eight screws.

Final Step: Close the Phone

Snap the back cover into place and press around the edges to secure all clips.
Insert the SIM tray, power on the phone, and test charging and microphone functions.

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FAQs

1. Does the Galaxy A13 4G charging port board include the microphone?
Yes. The bottom microphone is built into the charging port board and cannot be replaced separately.

2. Will replacing the charging port fix microphone issues during calls?
Yes, if the bottom microphone is faulty, replacing the charging port board usually resolves call and voice recording issues.

3. What symptoms indicate a faulty charging port board?
Slow charging, no charging, loose cable connection, microphone not working, or no audio during voice recording.

4. Is the Galaxy A13 4G charging port board the same as A13 5G?
No. They use different connectors and layouts and are not interchangeable.

5. Does replacing the charging port affect data on the phone?
No. Charging port replacement does not erase data.

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Troubleshooting FAQs – After The Repair

1. Phone charges but microphone still doesn’t work
Make sure the secondary LCD connector and antenna cables are properly reconnected.

2. Microphone works on speaker mode but not on calls
This usually indicates a faulty bottom microphone, which is part of the charging port board.

3. Phone not charging after replacement
Recheck the charging port board screw, flex connectors, and battery connection.

4. Network signal weak after repair
Ensure both antenna heads are securely snapped onto the charging port board.

Related Guides

• Check Other Samsung Galaxy A13 Repair guides
• View Repair Guide on Samsung Galaxy A13 5G