Raspberry Pi Model B Revision 2 0 Usb Port Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          50 minutes - 2 hours

Sections

USB Port
12 steps

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Introduction

If you decide to work outside, position yourself away from the wind; the fumes will remain out of your way. Also if you wear contact lenses you must remove them before soldering. If any fumes or debris were to intermingle with the lenses, they might get lodged and be difficult to remove.

Lastly, be patient. The estimated time is only a reference. If you have little or no experience with soldering, it might take some time to develop a rhythm. Also, if you find a technique that works for you, carry on. This is a learning experience, and a perfect port to practice on!

Caution: Soldering/desoldering presents a potential for device damage and burns. Always work in a well-ventilated area.

What you need

Step 1

              USB Port

Ensure that your workspace has adequate ventilation.
Clean your work area with a lint-resistant wipe.
A microfiber cloth is recommended, but not one you love! It will be used to clean flux later.

Ensure that your workspace has adequate ventilation.

Clean your work area with a lint-resistant wipe.

A microfiber cloth is recommended, but not one you love! It will be used to clean flux later.

1024

Step 2

Preheat your soldering iron.
Preheating will take 2-4 minutes, depending on your model.
Wet a heat-resistant cleaning sponge and have it nearby.

Preheat your soldering iron.

Preheating will take 2-4 minutes, depending on your model.

Wet a heat-resistant cleaning sponge and have it nearby.

Step 3

Orient the Raspberry Pi so that the port-covered side faces downwards, and the opening of the USB port is visible.
Identify the 12 silver USB pins on the lower-middle section of the board.

Orient the Raspberry Pi so that the port-covered side faces downwards, and the opening of the USB port is visible.

Identify the 12 silver USB pins on the lower-middle section of the board.

Step 4

Use an inexpensive paint brush, or the applicator that came with the flux, to apply flux around the 12 pins on the printed circuit board (PCB).
Be sure to coat flux on what you don’t want to be covered in solder.

Use an inexpensive paint brush, or the applicator that came with the flux, to apply flux around the 12 pins on the printed circuit board (PCB).

Be sure to coat flux on what you don’t want to be covered in solder.

Step 5

Soldering/desoldering presents potential for device damage and burns.
Starting with the largest pins first, but individually, use the soldering iron to carefully melt the solder on each of the pins, with care not to damage the PCB.
You will need to keep the solder liquid throughout the next two steps. It’s alright if it solidifies, but solder will not wick if it is not liquid.

Soldering/desoldering presents potential for device damage and burns.

Starting with the largest pins first, but individually, use the soldering iron to carefully melt the solder on each of the pins, with care not to damage the PCB.

You will need to keep the solder liquid throughout the next two steps. It’s alright if it solidifies, but solder will not wick if it is not liquid.

Step 6

Make a wire loop out of the desoldering braid to “soak up” the solder on the smaller pins. Hook the pin and place the soldering iron tip on the loop and pin simultaneously.
Use the desoldering braid to “soak up" the melted solder. If the braid will not catch more solder, cut off the end and continue to the smaller pins.
This will be the most time-consuming step and may take some practice to refine a technique that works for you. Keep pushing!

Make a wire loop out of the desoldering braid to “soak up” the solder on the smaller pins. Hook the pin and place the soldering iron tip on the loop and pin simultaneously.

Use the desoldering braid to “soak up" the melted solder. If the braid will not catch more solder, cut off the end and continue to the smaller pins.

This will be the most time-consuming step and may take some practice to refine a technique that works for you. Keep pushing!

Step 7

After all the solder securing the pins is removed, lightly heat each silver pin. Use a hemostat or needle-nose pliers to disconnect the smaller pins from the board.
Remove the faulty port with a gentle pull if necessary.
The metal casing of the port might be hot.

After all the solder securing the pins is removed, lightly heat each silver pin. Use a hemostat or needle-nose pliers to disconnect the smaller pins from the board.

Remove the faulty port with a gentle pull if necessary.

The metal casing of the port might be hot.

Step 8

Clean the excess flux off the PCB with a microfiber cloth.

Clean the excess flux off the PCB with a microfiber cloth.

Step 9

Insert the replacement port with the open side facing outwards.
The replacement part’s pins might need a little jostling to be fully seated on the PCB.

Insert the replacement port with the open side facing outwards.

The replacement part’s pins might need a little jostling to be fully seated on the PCB.

Step 10

Apply flux around the 12 USB pins on the PCB.

Apply flux around the 12 USB pins on the PCB.

Step 11

Melt a few millimeters of lead-free solder on the tip of the iron.
Bring the soldering iron with the melted solder close to the pin and its respective base. Slowly apply solder to a combination of the pin, pin-base, and the iron tip until the solder collects into a “bubble,” encapsulating the pin and base.

Melt a few millimeters of lead-free solder on the tip of the iron.

Bring the soldering iron with the melted solder close to the pin and its respective base. Slowly apply solder to a combination of the pin, pin-base, and the iron tip until the solder collects into a “bubble,” encapsulating the pin and base.

Step 12

Repeat the previous step for the remaining pins.

Repeat the previous step for the remaining pins.

Your new USB port should be fully functional!

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                    Tamren Lenn

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                       University of Memphis, Team 2-8, Willis Spring 2022                        

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Introduction#

What you need#

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Introduction

What you need

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