How can I get my audio to work on my trio tablet it switched to headphones and I'm not even using them I don't have any sound at all plz help

SOURCE: do i get into my tablet trio if i don't know the password or my gmail account

you can make another account and use that.you can have as many gmail accounts as you want

SOURCE: sound problems on tablet

It sounds as though the switch on the phone jack is not making connection when the phones are unplugged. You can probably clean it by spraying some contact cleaner in the jack, then plug and unplug the phones several (lots of) times. I've had good success with WD40, but it does leave a residue. If this does not fix the problem, you can open the tablet by gently prying the screen off with thin blade (a knife might work). Work your way around the entire screen until the body separates. Gently open and perhaps you can access the jack switch to clean it, if it is not sealed. I hope this is helpful to you.

SOURCE: How do set the trio stealth to use an external SD card

I show you one of the many links about using an SD card on an Android tablet or phone:
How to install Android apps to your SD card by default fixedByVonnie

SOURCE: For Christmas I received an Archos tablet and my headphones jack stopped working. Instead of playing sound through headphones while they're plugged in, it plays through the built in speakers. Is there

Every thing is low quality chines junk these days and probably head phone jack input is broken and it is not repairable as all similar items ,

SOURCE: When I plug the headphones into my Samsung Galaxy 10.1 tablet, the sound comes from both the headphones and the speakers on the tablet, shouldn't the speakers be turned off by the headphones?

As mentioned above, SoundAbout should work.