MTP problems (android – PC cable connection)

If you cannot connect your PC with an android device via usb cable, check first if your mobile device has mtp (media transfert protocol) set, and not charging or other USB possibilities.

In Likebook, for example, you have to set as in the following image:

Of course, you should have also installed all the needed MTP libraries.

Check android disk usage (and free space)

An useful open source android app to check how (by what apps or data) your device space is used, is Disky.

This “fast storage analyzer creates a pie chart of storage usage and lists folders by size”, very “intuitive and ad-free”.

I.g. yesterday, using this app I noticed that surprisingly an app (LinkToSport) was using 23 Gb.  Definitely too much 🙂.

Android firewall 🔥🧱🛡️

The best android open source Firewall (+ adblocker / vpn ) I found so far is Rethink. It can have some problems (i.g., recently, with Whatsapp or Fastnews, blocking them from the Net), but you can solve them quite easily.

Not so good I tried apps such as Athena, or De1984, or InviZible Pro: all very difficult to set properly. Indeed they block either too much or to little (your apps from the Net).

Rethink, on the contrary, can let you set exactly what should be blocked and what allowed.

Using a smartphone wi-fi connected for ♆USB tethering

It is possible, at least with some smartphone (and some, new) adroid releases to have a smartphone connected to a wi-fi network and to use it for usb tethering (of course not for wi-fi hotspot).

This could sound a bit strange, but it can be useful, i,g., if your laptop has not a wi-fi reception as powerful as your smartphone: so, you can use your smartphone to receive the wi-fi signal and to share it with the laptop.

Syncthing’s problems

If you are not able to connect your PC to your mobile device, using Syncthing in both of them, you should check your firewall, both on PC and on mobile.
And, of course you have to set, in firewalls, permissions to communicate each other.

PixelPhone

Is a small android dialer app from Hong Kong. Its best value is to add groups to to Phone, so that you can choose from a group a contact.
But the problem is that groups are incredibly displayed not in alphabetical order (maybe a problem from the Chinese culture?). And so groups tab result perfectly useless.

Moreover deleting a call from log call is very, very complicated (if you press a call then start immediately a call to that number). No way to select more than one call (to delete it from the screen of calls). In Fossify Phone you can select and delete several calls.

Another problem is the impossibility to block unknown numbers (what is present in Fossify Phone).

Another problem is that you cannot find the website of the app, and a forum where speak of your problems with this app.

To sum up: a potentially good app, with many improvements to do.

See TV channels from Decoder to Smartphone

With a Linux decoder such as Octagon (with Openatv e Kodi) you can see your TV on your smartphone. Provided that you have Kodi both on decoder and on smartphone.

  • Both decoder and smartphone should be under the same network (such as samba).
  • Install on your smartphone Kodi app,
  • in Kodi install a PVR client such as enigma2,
  • configure the correct IP of your decoder (something like 192.168.1.166) and your decoder Kodi credentials.
  • You should be able to see your TV, as in the following image

    kodi

css :hover on a mobile device

There lots of java-scripts to allow an effect such as mouse over on a mobile device (that is without mouse), but there is also a very, very simple solution: to use :active instead of :hover, as in the following example:

@media screen and (max-width: 580px) {
  .tooltip:active .tooltiptext {
  visibility: visible;
  opacity: 1;
}
}

while in desktop screen you can keep
.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

sync murena on android nextcloud

When you are asked to set a server (opening nextcloud app on android), it’s enough to enter murena.io. Then you will asked for your user and password. (found here:: https://community.e.foundation/t/how-to-sync-nextcloud-notes-with-murena-io/47079)

A problem, if you connect your android device with KDEConnect and you copy your password from your PC, could be to paste it in password field. For security reason your keyboard could not allow you to paste easy. But eventually I managed to paste it without typing it.