Samsung
Galaxy S4 - disassembling procedure – How to remove the back cover – How to
remove the middle frame
Pry
with a plastic opening tool, or your fingernail, in the divot to the left of
the rear-facing camera, near the power button.
Lift
the rear case by the corner nearest the divot and remove it from the phone.
Use
the flat end of a spudger, or your fingernail, to press the microSD card
slightly deeper nto its slot until you hear a click. After the click, release
the card and it will pop out of its slot. Remove the microSD card. For
reassembly, push the microSD card into the slot until it clicks in place.
Insert
a plastic opening tool, or your finger, into the notch of the battery
compartment and lift the battery upward. Remove the battery from your phone.
Use
a plastic opening tool, or your fingernail, to press the SIM card slightly
deeper into its slot until you hear a click. After the click, release the card
and it will pop out of its slot. Remove the SIM card. During reassembly, push
the SIM card into the slot until it clicks in place.
Remove
the nine 4.0 mm Phillips #00 screws securing the midframe to the display
assembly.
The
midframe is secured to the display assembly by several plastic clips behind the
chrome bezel of the midframe. The next few steps will guide you through
separating the clips to free the midframe. Starting on the volume button side
of the phone, insert your plastic opening tool between he chrome bezel around
the display glass and the larger chrome border piece. Look for he seam between
the two. Slide the opening tool along the seam, separating the plastic clips as
you go. Be very gentle whilst prying, and pry only enough to separate the
plastic clips—there are several thin points in the midframe bezel that may
crack if you bend them too much.
Continue
prying around the corner of the phone. Slide your opening tool along the seam
between the midframe and display along the bottom of the device, releasing more
of the plastic clips.
Again,
pry around the corner, to the power button side. Slide the opening tool along
the seam.
Continue
sliding the opening tool around the top of the phone, releasing the last of the
clips and freeing the midframe from the display assembly. At this point, you may
want to run your plastic opening tool along the entire perimeter of the device
again, to make sure you've released all of the plastic clips.
Remove
the midframe from the display assembly.
Use
the flat end of a spudger to disconnect the USB board cable connector from the
motherboard.
Gently
insert the point of a spudger between the USB port and the USB port bracket to
pry one side of the bracket off of its post.
Remove
the USB port bracket from the USB port. The bracket is slightly springy and
should pop back into place on the two screw posts during reassembly.
Disconnect
the soft button cable from the USB board cable. Disconnect the antenna cable
connector from the USB board. Depending on your carrier, you may have an
additional antenna cable. If you can access it at this point, use a spudger to
disconnect it from the USB board.
The
USB board is secured to the display assembly with light adhesive. Depending on
your carrier the USB board may have an additional antenna cable on the back
side of the USB board. Pry very carefully and stop if you encounter resistance.
Gently insert the flat end of a spudger beneath the USB board to free it from
the adhesive holding it in place. Go slow and be careful not to bend the board.
Remove
the USB board from the display assembly.
