Introduction

Use this guide to replace the USB board in the event of an inability to charge.

Keep press the END key to turn off the phone (if turned on).
  • Keep press the END key to turn off the phone (if turned on).

Pull out the back cover of the cell phone with the help of a plastic opening tool.
  • Pull out the back cover of the cell phone with the help of a plastic opening tool.

Pull up the battery.
  • Pull up the battery.

Remove the old SIM Card by sliding it towards the bottom of the device. Remove the old SIM Card by sliding it towards the bottom of the device.
  • Remove the old SIM Card by sliding it towards the bottom of the device.

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Using your fingernail push through the hole at the top of the memory card holder, so it can be slid out.
  • Using your fingernail push through the hole at the top of the memory card holder, so it can be slid out.

Remove the 10 4.0 mm Phillips screws on the back of the phone using the #00 Phillips screwdriver.
  • Remove the 10 4.0 mm Phillips screws on the back of the phone using the #00 Phillips screwdriver.

  • Not needed, but Tweezers can be helpful in removing the screws from their holes, as their size makes removal a tad difficult.

Starting at the USB port, slide a plastic tool around the perimeter of the phone between the rear housing and frame.  As you work your way around the edge you will feel the clips release.
  • Starting at the USB port, slide a plastic tool around the perimeter of the phone between the rear housing and frame. As you work your way around the edge you will feel the clips release.

Carefully separate the rear housing and the mid-frame to reveal the inside of the phone.
  • Carefully separate the rear housing and the mid-frame to reveal the inside of the phone.

Remove the 2 flex cables shown that attach to the USB board, Tweezers can be especially helpful here.
  • Remove the 2 flex cables shown that attach to the USB board, Tweezers can be especially helpful here.

Attention! Some Models have also an Cable on the right side for the 3G-Module. Also this have to be removed. In this case the Module is also bigger and fixed with 2 tapes.

Maxi - Reply

Gently pry underneath the charging port using the plastic opening tool to separate it from the double sided tape below.
  • Gently pry underneath the charging port using the plastic opening tool to separate it from the double sided tape below.

Once its released, gently lift the main board and remove the USB board containing the charging port.
  • Once its released, gently lift the main board and remove the USB board containing the charging port.

Conclusion

To reassemble your device, follow these instructions in reverse order.

26 other people completed this guide.

Francis Barnett

Member since: 09/23/2014

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2 Guides authored

Team

USF Tampa, Team 9-2, Blackwell Fall 2014 Member of USF Tampa, Team 9-2, Blackwell Fall 2014

USFT-BLACKWELL-F14S9G2

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if i open the device like this, can i solder cables on the usb port to connect a wireless charging reciever?

Getriebesand - Reply

I was looking for the same solution, and I think it is possible, a closer look at the USB port from various spare parts suppliers, I was in doubt if mine would look the same as the one displayed here, after disassembling my phone, it turned out to be this one: http://bit.ly/1GR4SzP

And it is possible, when messuring connection points, it turns out CN2 on the bord is the +, and - you can fit onto the side of the USB connector itself.

redhead -

I have created a Guide describing the addition of wireless charging, it is in no way affecting the phones stability.

redhead -

Works great with the S4 mini I9195 LTE version, but mind the different spare part (as linked above: http://bit.ly/1GR4SzP).

megaoetzwuchst - Reply

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