How to repair the iPad Mini 4 if it doesn't turn on, submerged, or starts, and how to disassemble it
iPad Mini 4 Logic Board Replacement and Decomposition Procedures 38 steps
[iPad Mini 4 Logic Board Replacement STEP 1]
Since the removal of the logic board has become very long as a process, it may be better to stop those who do not have themselves in the decomposition.
It is not easy to remove the logic board, but if the iPad is submerged, or the screen is only slightly visible, it is necessary to repair the logic board, so please refer to the following decomposition method.
In order to remove the logic board, it is necessary to remove the liquid crystal, but since the liquid crystal is fixed with double-sided tape, heat is applied to the red part and peeled off.
If you can add heat, it will be easier to work with suction cups, vacuum lifters, etc.
[iPad Mini 4 Logic Board Replacement STEP 2]
If you can float the liquid crystal even a little, the work efficiency will be improved if you try to insert a pick etc. into the gap, but please be careful because there is a possibility that you will break the screen if you try to push it forcibly.
[iPad Mini 4 Logic Board Replacement STEP 3]
When the liquid crystal floats to some extent, it is possible to lift it like an image, and be sure to lift it from the top (camera side) at this time.
In addition, there is a home button and cable relationship on the lower side, but the home button of the iPad Mini 4 has fingerprint authentication, so please be careful because you will never be able to use fingerprint authentication again if you break it by any chance.
Even if you break it by any chance and perform a home button exchange, the function of fingerprint authentication is paired with the main body side, so you can only use the "normal button" without fingerprint authentication.
[iPad Mini 4 Logic Board Replacement STEP 4]
It is a scene seen from the front by causing a liquid crystal.
Because there is a connector of the liquid crystal in the lower right part, I will decompose it.
[iPad Mini 4 Logic Board Replacement STEP 5]
There are three red frames in total, but the leftmost side is the connector of the battery, so please remove it first.
It is a way to remove, but you can easily remove it by using the tool (plastic) and lifting it upward from the bottom.
If you can remove the connector of the battery, let's remove the connector on the liquid crystal side (middle, right side) in the same manner.
[iPad Mini 4 Logic Board Replacement STEP 6]
Now it was possible to separate the body side and the liquid crystal side.
[iPad Mini 4 Logic Board Replacement STEP 7]
The left side of the image is the front camera and the right side is the rear camera (back camera), but I would like to remove it from the rear camera first.
There is a black cushion on the iron plate of the arrow part, but it is only attached with double-sided tape, so it will peel off to the upper side using the tool.
[iPad Mini 4 Logic Board Replacement STEP 8]
Because the screw is hidden under the black cushion of the previous, two screws that secure the plate are removed.
Then, please keep it because the plate also come off at the same time.
[iPad Mini 4 Logic Board Replacement STEP 9]
Under the plate is a rear camera connector, which is removed from the bottom to the top using the tool as shown in the image.
[iPad Mini 4 Logic Board Replacement STEP 10]
If it is possible to remove the connector of the previous, It will continue to break the main body side, but it is slightly stiff because it is fixed with a part bond around the body.
[iPad Mini 4 Logic Board Replacement STEP 11]
The rear camera could be removed.
Next, the front camera is removed, but the one enclosed in red becomes the connector of the front camera.
Let's remove the connector in the same way as when the rear camera was removed.
[iPad Mini 4 Logic Board Replacement STEP 12]
The cable part is stopped with a light tape, but it is possible to peel off easily.
The camera is fixed with cushioned tape below, but let's remove each cushion.
[iPad Mini 4 Logic Board Replacement STEP 13]
I was able to remove the front camera.
[iPad Mini 4 Logic Board Replacement STEP 14]
The earphone connector is hidden under the front camera cable that I removed earlier, but Remove the connector in the same way as before.
[iPad Mini 4 Logic Board Replacement STEP 15]
The cable part is stopped with a light tape, but it is possible to peel off easily to some extent.
[iPad Mini 4 Logic Board Replacement STEP 16]
There is a black tape left when peeling off the liquid crystal though it becomes the earphone part, and the screw is hidden under this.
[iPad Mini 4 Logic Board Replacement STEP 17]
When you turn over the tape, two screws are attached, so you can remove them.
At the same time, you can remove the iron plate, so please keep it.
[iPad Mini 4 Logic Board Replacement STEP 18]
There is one screw under the iron plate, so remove it.
You can remove the earphones if you try to pull out the rest.
[iPad Mini 4 Logic Board Replacement STEP 19]
I was able to remove the earphones.
[iPad Mini 4 Logic Board Replacement STEP 20]
This is the power supply part, but the yellow frame connector becomes the connector of the power supply, so it will be removed by lifting it from the bottom to the top.
In addition, there are two small screws in the red part, so remove both.
Since the cable part on the way is only fixed with double-sided tape, it is possible to peel off easily.
[iPad Mini 4 Logic Board Replacement STEP 21]
I was able to remove the power button.
[iPad Mini 4 Logic Board Replacement STEP 22]
Next, it becomes a volume button, but the connector is in the red frame part.
If you can remove the screw, the plate will also come off, so please keep it.
[iPad Mini 4 Logic Board Replacement STEP 23]
Let's remove the tool because there is a connector when it is possible to remove the iron plate!
[iPad Mini 4 Logic Board Replacement STEP 24]
The volume cable is attached to double-sided tape, but it can be easily peeled off.
If you can peel off the cable, there are screws inside, so let's remove all!
You can remove the volume switch if you try to break the black plate.
[iPad Mini 4 Logic Board Replacement STEP 25]
I was able to remove the volume button.
[iPad Mini 4 Logic Board Replacement STEP 26]
Let's remove all the screws of the Wifi part!
[iPad Mini 4 Logic Board Replacement STEP 27]
Insert the tool into the gap so that the Wifi is peeled off.
[iPad Mini 4 Logic Board Replacement STEP 28]
The cable extends to the bottom of the logic board, but it is only fixed with tape, so i pull it and remove it.
[iPad Mini 4 Logic Board Replacement STEP 29]
The cable on the left side of the red frame will be the cable you just used to use, so let's remove it!
The red frame side becomes the same Wifi cable, but it extends to the speaker below.
Let's remove here in the same way!
[iPad Mini 4 Logic Board Replacement STEP 30]
Because it is only fixed with tape, it is pulled and peeled off.
[iPad Mini 4 Logic Board Replacement STEP 31]
It becomes the Wifi part, but let's remove all because there is a screw in the place that is surrounded by a red frame! There is a speaker below this.
[iPad Mini 4 Logic Board Replacement STEP 32]
Because it is fixed with a screw to the dock connector part, i remove it.
[iPad Mini 4 Logic Board Replacement STEP 33]
Because the cable is inserted just below the screw of the previous, it can be easily removed if it pulls it out after pulling it out after causing the pin.
[iPad Mini 4 Logic Board Replacement STEP 34]
I was able to remove one of the speakers.
[iPad Mini 4 Logic Board Replacement STEP 35]
It becomes the speaker of the opposite side from the previous, but it is possible to remove it easily in the same manner as before.
[iPad Mini 4 Logic Board Replacement STEP 36]
If you can remove all the parts connected to the logic board, we will decompose the logic board itself.
Because it is only fixed with a strong double-sided tape, it will peel off from under the tool.
It is recommended because it is easy to peel off when the decomposition is done after adding heat to the back of the body (per logic board) at this time.
[iPad Mini 4 Logic Board Replacement STEP 37]
Only the logic board was able to be removed from the main body.
[iPad Mini 4 Logic Board Replacement STEP 38]
It becomes the back of the logic board, but the dock connector of the iPad Mini 4 is soldered to the logic board, so it is not possible to replace only the dock connector easily.
It is recommended that you consult a repair shop because it will be difficult work when changing the dock connector.
Since the removal of the logic board has become very long as a process, it may be better to stop those who do not have themselves in the decomposition.
If you can float the liquid crystal even a little, the work efficiency will be improved if you try to insert a pick etc. into the gap, but please be careful because there is a possibility that you will break the screen if you try to push it forcibly.
When the liquid crystal floats to some extent, it is possible to lift it like an image, and be sure to lift it from the top (camera side) at this time.
It is a scene seen from the front by causing a liquid crystal.
There are three red frames in total, but the leftmost side is the connector of the battery, so please remove it first.
Now it was possible to separate the body side and the liquid crystal side.
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