i've been using LG Magna with android lollipop for a year now and got a notification last night about an android os upgrade. i downloaded it and got android marshmallow 6.0. everything was working just fine but today when i turned on my bluetooth (to transfer some files), it didnt turn on. instead it showed an error message saying: "unfortunately bluetooth has stopped"
i went to app manager, tapped on "Bluetooth" (having the blue bluetooth icon), cleared cache and cleared data. did the same with another app "Bluetooth" (having the settings icon) and an app "Bluetooth MIDI Service". then i tried to turn on bluetooth but same problem occured. then i restarted my phone. when it booted and i unlocked it, the same error message appeared "unfortunately bluetooth has stopped" (even though i hadnt even tried to turn on bluetooth yet). i still tried to turn on bluetooth and of course the same error message appeared. i've never had this problem before the upgrade so im pretty sure that the problem lies with the upgrade.
i also went to 'app manager - menu - configure apps - ignore optimisations' cuz i had a feeling that maybe the battery saving feature of marshmallow must have something to do with the problem so i checked the three apps i mentioned before ("Bluetooth" "Bluetooth" and "Bluetooth MIDI Service"). still didnt solve my problem :'(
the only solution left in my mind is to factory reset my phone but i really dont want to go through all the hassle after doing so especially if theres a possibility that my problem wont even be fixed by resetting. please help.
sorry for the long post. way too lazy to post a potato