kobo n905 not responding to touch - uses?

fafive · 02-02-2021, 01:51 PM

Hello, I have a n905 (plain, no internal sd card), which stopped reading input on screen.
I dissasembled, cleaned, watch for broken parts, even put hot on it for a possible cold solder, but nothing worked.

I reset it to factory defaults, connected to pc to register it without problems, except, now there is a message to choose language on screen but I can´t press on any of the options.

It stopped working while sitting turned off in my desk for some days.

Is there something I could try to revive it? I am an electronic engineer.

If not, could this device be used somehow without using the screen for inputs?

Thank!

fafive · 03-17-2021, 11:19 PM

If this forum's people don't know what to do with this problem, lets try with a visit to the trash can.

davidfor · 03-18-2021, 02:28 AM

The most common reason for the touch in the devices that use IR touch to stop working is because there is dirt under the bezel blocking IR beams. Carefully cleaning under the bezel will usually solve this.

Another common reason is not putting it back together properly. The IR emitters and sensors need to stick up above the screen behind the bezel. If they are not aligned properly, the touch will not work.

The other reasons are usually software. Doing a restart usually fixes it. Or a factory reset when it doesn't come work after that.

02-02-2021, 01:51 PM	#1
fafive Junior Member Posts: 2 Karma: 10 Join Date: Feb 2021 Device: kobo touch n905	kobo n905 not responding to touch - uses? Hello, I have a n905 (plain, no internal sd card), which stopped reading input on screen. I dissasembled, cleaned, watch for broken parts, even put hot on it for a possible cold solder, but nothing worked. I reset it to factory defaults, connected to pc to register it without problems, except, now there is a message to choose language on screen but I can´t press on any of the options. It stopped working while sitting turned off in my desk for some days. Is there something I could try to revive it? I am an electronic engineer. If not, could this device be used somehow without using the screen for inputs? Thank!

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03-17-2021, 11:19 PM	#2
fafive Junior Member Posts: 2 Karma: 10 Join Date: Feb 2021 Device: kobo touch n905	If this forum's people don't know what to do with this problem, lets try with a visit to the trash can.

03-18-2021, 02:28 AM	#3
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303822 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	The most common reason for the touch in the devices that use IR touch to stop working is because there is dirt under the bezel blocking IR beams. Carefully cleaning under the bezel will usually solve this. Another common reason is not putting it back together properly. The IR emitters and sensors need to stick up above the screen behind the bezel. If they are not aligned properly, the touch will not work. The other reasons are usually software. Doing a restart usually fixes it. Or a factory reset when it doesn't come work after that.

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