Using exiftool to manually create a Google Map / Waze link from a JPG’s GPS position

If you’re into Linux, and you ever find yourself in a place you’d like to return to with Waze (in the middle of some road, or some not-so-well-mapped village, a campus etc.), just take a photo with your cellular. Assuming that it stores the GPS info. Alternatively, the “My GPS Coordinates” Android app can be [...]

Pairing a mobile phone with VW RCD 510 / Kufatec Fiscon car radio

I struggled with this a bit, and ended up doing it right by guessing. Even though I should have read the manual to begin with. So the procedure is simple (cited from manual, page 7, “Pairing”): Turn the ignition on. Make sure the Bluetooth feature of your phone is turned on. Start the pairing procedure [...]

LG G4 ignoring a 5 GHz Wifi hotspot

Problem: My LG G4 (Android 5.1, kernel 3.10.49) suddenly ignored my home’s 5 GHz router. It saw the neighbors’ networks all right, but not mine. Reason for problem: I had activated the phone’s hotspot previously. It seems like that locked the Wifi hardware to the 2.4 GHz band, as it happens to transmit on 2.437 [...]