Tablet Fails To Recognise Micro SD Chip

I am an absolute novice to my Baun android tablet. I downloaded astro file mgr but it does not let me see my micro sd (even tho the tablet tells me it is there).
every pic I have downloads to the internal sd (WHICH IS NOW FULL!!)
I was able to download pics from my pc to the micro sd once I attached the tablet to pc via usb cable, but I must have mucked around with settings too much so that now my pc accesses the internal sd ONLY (as camera) and I am locked out of the main area of the tablet as well as the micro sd chip which used to be visible as LOST.DIREC but which only appears now in photos on my main tablet screen (if you can follow that) but which I can no longer access even via pc.
What have I done? how do I reaccess the gallery pics in the main area of the tablet?
why won't the ext sd chip show up under files in astroid file mg
are you able to give me some clear & direct advice on the above as I leave for europe in 2 weeks and desperately need to make the ext micro sd function as storage for pics & vids?
Pete gee

 

thanx spider,
will try the file explorer. will it clash with astro file manager?
and are you suggesting it may locate the micro ext sd card?

 

will def try your suggestion when next in wifi range (currently emailing via pc on nbnsat).
any idea why I've lost contact with main Baun tablet contents (& ext sd chip) via pc and am left with only the internal sd showing to my pc?

 

ha ha would/will if ever I can get tablet to recognise MSD

 

finally got wifi range, downloaded ES explorer & Voila, recognition of ESD. Thanx muchly.
next question ...
so then, in preparation for coming euro trip, I moved all pics on file to recycle bin.
To my dismay, settings declared internal sd still so full that I could not even take a photo with camera.
I did read in somewhere in a thread that just binning stuff does not mean it is cleared from the entire system but just transferred elsewhere. True? I guesss it must be!
How & Where do I find this stuff & how do I remove it so as to free up my Baun system?

 

thanx also for your help, PC.
I was originally moving pics between my tablet & pc (and had backed up everything that way previously) but weirdly lost that function some weeks ago (see thread) so that my pc only reads my internal sd and not my camera/photo files. Any solution to that one?

I have downloaded the cameraICS app & organised its settings for sdcard (as opposed to internal) - & I also turned 'STORE LOCATION" on - and while it clearly has downloaded the 2 expected folders (DCIM & LOST.DIREC) to the esd, it has not downloaded the pics to there but to a separate folder under CAMERA.Nor does it 'comply' when I turn STORE LOCATION off.
any ideas?

 

oops, sorry man, it has only now begun to store automatically in ext sd card. I guess it needed me to turn off STORE LOCATION again.
This is excellent because for the life of me I could not get the tablet's camera settings to store in esd.
still would love to know why my pc wont 'read' the tablet's internal files or the esd (which it once did)

 

thanx for the explanations
and yep have downloaded both dropbox & overdrive for storage purposes too.

 

if any one is still viewing this thread ...
my screenshot camera has been firing (Black screen) blanks for over a year.
I cannot find where to go to adjust
or is it that the screenshot component may have stopped working?