Question about Casio Cassiopeia E-115

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Replaced my Casio E115 screen - now touchscreen doesn't work!

I inherited a Casio E115 with a shattered screen. I carefully removed the LCD and touch screen (both were shattered, but the rest of the unit was fine). I took a working LCD and touch screen from a fully functional Casio E105 and installed it into the E115. Now the LCD display is fine on the E115, but the touch screen doesn't work! I touch it, and nothing happens - it doesn't register. I have the 4-connector touch-screen cable plugged in properly. Does anybody have any ideas of what might be wrong? Are the touch screens on the E105 and E115 just incompatible? I noticed a small metallic sliver that was screwed to the plastic chassis that the display sits in. Does the touch display have to be touching this to close some kind of resistive circuit? It doesn't seem to touch it - I don't really know if that matters.

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Re: Replaced my Casio E115 screen - now touchscreen...

There are 2 things you have to check for. The touch screen was changed in the middle of production run. The flexible connector & the corresponding socket on the main board were inverted. In other words the exposed track side was moved from upper to lower side. The older type of touch scrteen is no longer available. Casio made the socket available to their service centre to change in on the main board to suit the newer type of touch screen. If this is the case you will have to get the newer type touch screen to suit the E-115. The second aspect is that there are 4 self adhesive spacer tapes (approximately 3 mm x 80 mm x 0.5mm thick on the long side & 3 mm x 60 mm x .5 mm on ythe short side) on the periphery of the LCD. This is to keep the touch screen from touching the LCD. This is to prevent Newton's rings as also to prevent malfunction of the touch screen. These are an absolute must. Other than that the touch screens are absolutely the same. Hope this helps.

Posted on Sep 05, 2005

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My touch is'nt work and hardreset is'nt working!


Does your unit still works even without using touchscreen?

Since you already do hard reset and still it does'nt work. then chances are you have a defective touch screen, probably it is cause by an impact of any kind and produce a crack inside or if your luck, the touch screen flex get loose inside.

here is what you can do if your phone does'nt have any warranty anymore cause opening your phone can forfeit your warrany.

Open tour phone slowly and secure the screw to a safe place and also remember where and how to place the parts you remove. Be extra carefull for the LCD. the touch screen is just above the LCD. Some manufacturers include the touch screen to the LCD and some are separate. You can check visually is there is cracks on the touch screen and also check its flex connector if it is ok.

You can purchase touchscreen, LCD or Both at ebay. be sure that the right model is what you order.

Hope I helped you in some other way.
Don't forget to rate me, Thanks...


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I first (and very carefully) lifted the sticky tape that is protecting this connection. I then (even more carefully!) cut the ribbon that goes to the touchscreen leaving a tab attached to the screen. By very careful lifting it was then possible to get the 4 way flexible PCB that goes to the touchscreen to separate from the main section without damaging what was left - if you have a hot air gun with a micro nozzle that may be an alternative. To separate the touchscreen from the LCD I used a sharp scalpel to gradually cut between the glass of the touchscreen and the bezel of the LCD - it is only glued to the bezel and not the LCD itself but be very careful not to damage the LCD surface. After a lot of careful sliding around all sides with the scalpel the touchscreen came off in one bit. I then positioned the new touchscreen and used what was left of the original double sided tape on the bezel to hold it in place (after removing the protective film from the toucscreen). 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I believe if you are hardy with this sort of thing you can order a new touch pad from Global Products or The e-115 , e125 and others all the same. Mine is coming from Global now item # 10003145 @ $28.00 I believe. I will know more when mine arrives. The case is not to hard to crack open just be careful. Once the case is open and motherboard freed turn the mb. over from case. The touch pad removes very easily one ribbon connector and one tape. Tear down pictures @ Be careful to have static band or discharge don't touch except edges and plastic of compact flash. It will take a little work but it is the cheap way. Dick

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