How to re-associate a file type?

June 12, 2016 at 20:29:15
Specs: Linux
Android 4.4.2 tablet computer

I installed a program to view PDF files, and used it for several weeks
or even months. But then one day whenever I try to open a PDF file,
a little popup at the bottom of the screen started saying:

no application can open this file

I have cleard data, uninstalled and reinstalled the program, and
restarted the tablet to no avail.

-- Jeff, in Minneapolis


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#1
June 12, 2016 at 21:53:31
Go to Settings, Device, Applications, Default Applications and you can set the correct app there.

This is how it's done on an Android phone but it should be similar enough on a tablet.

message edited by THX 1138


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#2
June 13, 2016 at 23:00:09
Under Settings I find a group of selections titled DEVICE, one of
which is Apps. The apps are listed in four groups: DOWNLOADED,
RUNNING, ALL, and DISABLED. My PDF reader program is listed
in the DOWNLOADED and ALL columns. When I select it I can
Clear cache, Clear data, Force stop, and Uninstall. I have done all
of those and then re-installed with no effect. There is also a section
titled LAUNCH BY DEFAULT which says No defaults set. It contains
a buttion that says Clear defaults, but it is greyed out.

-- Jeff, in Minneapolis


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#3
June 14, 2016 at 11:48:24
Ok, try this. You should have a built in Adobe PDF reader installed on your tablet. Go into the settings for that app and the "Clear Defaults" should not be greyed out. Press on the Clear Defaults. Now uninstall and reinstall the PDF viewer and at some point it should ask if you want to use it as the default reader.

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Related Solutions

#4
June 14, 2016 at 19:17:47
What PDF reader are you using?
What is the brand of the tablet?
Most leading brands provides default access to PDF files on their tablet though (including mine).

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#5
June 14, 2016 at 20:39:20
I intended to say in my last post that the PDF reader is SmartQReader.
The tablet brand is NuVision, and was probably sold on one of those
24-hour TV sales channels. I bought it second-hand from a local
nonprofit that recycles used computers. The screen was cracked
when I bought it. I watched the tablet being reset just before I tried
it out. The first two things I did with the tablet were to download the
tablet's PDF user manual and a PDF reader. I forget now if it was
SmartQReader. There was no pre-installed PDF reader.

-- Jeff, in Minneapolis


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#6
June 14, 2016 at 22:54:56
NuVision, never heard of it.
Try a different PDF reader.
Here are some -
https://www.apk4fun.com/apk/6040/
https://www.apk4fun.com/apk/3685/
https://www.apk4fun.com/apk/5667/
Don't worry I've been using apk4fun since two years, files are genuine.
Get back after trying them :)

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