jedikalimero

Senior Member
Mar 11, 2012
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Hi,

I purchased a very cheap Note Pro with the front glass cracked. All other functions work perfect, including stylus and touch sense. I bought a replacement glass but I have been looking for some info (preferably with pictures or video) about opening the tablet and replacing the glass but could not find anything.

Anybody can throw a ray of light on this issue? Any tutorial, tear down or something?
 

jedikalimero

Senior Member
Mar 11, 2012
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Galaxy Note 10.1 was very easy to repair (at least the old version). You removed the back cover easily and then removed all components until you had just the bezel with the glass and touch sensor glued to it. Then you had to apply heat to glass to loosen glue but since glass was already broken, you had not to worry about breaking it more or overheating other sensitive components.

Galaxy Note II (and all other Galaxy phones) are much more difficult since glass is glued to the display so removing it incorrectly can break the display.

But what about the Note Pro?
 

jedikalimero

Senior Member
Mar 11, 2012
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I received the replacement glass from China today so I tried to replace it. The tablet opens up by removing the back plate (the one imitating leather). Inside it looks very similar to the original Note 10.1. Very modular and easy to tear down... until you get to the display.

You can remove the USB3 port with the card readers, front camera with light sensor, rear camera with microphone, both speakers, the antennas, the vibrator with audio jack and the LCD cable. Then you can disconnect the touch sensor cable, the Wacom cable, the standby/volume buttons and then the motherboard goes free.

But after that you have the middle metal frame and the bezel with the LCD/Wacom digitizer inside and the glass/touch sensor over it and the home button. But the similarities with the Note 10.1 end here. In the old tablet you can remove the metal frame by cutting all the heat stacked plastic fasteners, then the frame comes out and then the LCD so you end with the plastic bezel glued to the glass/touch sensor. If your glass is broken, you just rip it off and glue the new one.

But in the Note Pro, removing the heat stacked plastic fasteners doesn't liberate the frame. It is also glued with adhesive to the back of the LCD and to the plastic frame but the worst of all is there seems to be a point between the MicroSD and SIM readers where the frame is strongly bonded to the bezel with a metal piece impossible to separate so the LCD is trapped inside.

What's worse, the Glass is glued to the LCD in ALL THE SURFACE just like the Galaxy phones, so any attempt to remove the glass without breaking the LCD below is an almost impossible task. I tried it and I failed. When I noticed the complexity of the task I put everything back together and turned the tablet on. The LCD was dead. The tablet is still working but no image. I can hear the sounds and it is very unlikely the other easily removable components got damaged.

So at the end, if you break the glass, you have to replace all the front of the tablet, including LCD, Glass, Touch Sensor, Wacom sensor, Home button, plastic bezel and metal frame. A pretty expensive replacement piece, I think.

Well, at least the pictures I took during the proccess will serve for a teardown tutorial in Ifixit and to help other to know what can be done and what not.

NOTE: Although it is very difficult to replace the glass of a Galaxy phone, there are workshops that know how to do it. Basically you have to go very slow and apply the exact amount of heat to loosen the glue. I think it could be possible to apply the same technique to the Note Pro to replace the broken glass but it is too late for me. I suppose I will sell the tablet for parts or not working because if finding a glass was difficult, I don't want to imagine how difficult (and expensive) will be to find the whole display :(
 

GrowingViolet

Member
Dec 27, 2010
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Please forgive what basically amounts to a "thanks" post, but jedikalimero, thank you so much for all the work you put into this. I have a Galaxy Note Pro 12.2, and recently the glass cracked all the way across the screen. As with you, it functions normally otherwise, but I wanted to explore repair options. It sounds like it would just be better to buy a new tablet from a strictly financial perspective... though I'll just be extra-careful with it until that's actually doable.
 
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Beut

Senior Member
Jun 28, 2015
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I wanted to explore repair options. It sounds like it would just be better to buy a new tablet from a strictly financial perspective... though I'll just be extra-careful with it until that's actually doable.
New touchscreen is only around $50 but removing it without damage to LCD is extreme difficult if you have no experience. Even after a success, new touchscreen will have air gaps at the center like a new screen protector when put on the top of touchscreen, No where you can find the OCA (optically clear adhesive) film for this 12.2 screen. Even find one, you need air bubble removal vacuum pump to remove them and it's not cheap. The cheapest system I find online is around $500 and I'm not sure it can fit this big screen. I replaced a new touchscreen but have to get used to air bubbles between the LCD and touchscreen. Without OCA film, there is no way to eliminate these ugly air bubbles.

 
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jedikalimero

Senior Member
Mar 11, 2012
89
32
0
New touchscreen is only around $50 but removing it without damage to LCD is extreme difficult if you have no experience. Even after a success, new touchscreen will have air gaps at the center like a new screen protector when put on the top of touchscreen, No where you can find the OCA (optically clear adhesive) film for this 12.2 screen. Even find one, you need air bubble removal vacuum pump to remove them and it's not cheap. The cheapest system I find online is around $500 and I'm not sure it can fit this big screen. I replaced a new touchscreen but have to get used to air bubbles between the LCD and touchscreen. Without OCA film, there is no way to eliminate these ugly air bubbles.

It is better to apply LOCA glue instead of LOCA film. It is applied at the middle of the LCD and the pressure of the glass expands it to the borders. But it is difficult to measure how much LOCA glue you need to apply. Too little and you end up with air at the borders. Too much and you will end up with glue all inside the tablet.
 

VanArchon

New member
Jul 12, 2016
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It is better to apply LOCA glue instead of LOCA film. It is applied at the middle of the LCD and the pressure of the glass expands it to the borders. But it is difficult to measure how much LOCA glue you need to apply. Too little and you end up with air at the borders. Too much and you will end up with glue all inside the tablet.
How much does the LOCA glue cost? You could get a piece of plexiglass or something, cut it to size and apply the LOCA glue to it to see how much or little you might need. I'm partially asking because the glass on mine was just cracked today though the LCD itself appears to be working fine, so I'm looking to fixing mine too.
 

Beut

Senior Member
Jun 28, 2015
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How much does the LOCA glue cost? You could get a piece of plexiglass or something, cut it to size and apply the LOCA glue to it to see how much or little you might need. I'm partially asking because the glass on mine was just cracked today though the LCD itself appears to be working fine, so I'm looking to fixing mine too.
Not recommended if you are first time to do it. Your chance of damaging the LCD is 90%, I damaged at least 2 LCDs and one touchscreen in order to learn how to separate the touchscreen from LCD without causing damages to both of them. It requires experiences and patience, if the screen just have a hairline crack, don't bother to change the touchscreen, use a tempered glass to cover the crack and use the LCD the way it is.
It may take you at least one hour to remove the touchscreen and another hour to clean this glue.
In this picture, the glue is pushed to the center, but before that I had to turn on the tablet to make sure the LCD is not cracked.
The LCD flex cables are the bottom, left side of HOME button, without prior experience they will be cut off easily or damaged.
Then turning off by disconnecting battery because there is no touchscreen.


Without LOCA , the touchscreen will touch the LCD surface somewhere in the center making black spots.

 
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