I move a folder in android root directory to SDcard directory in internal phone memory. Is there a way to restore it back? The folder was custpack in root directory and the phone will not boot now.

I can still access a recovery mode but it only have a stock recovery from the manufacture. No custom recovery available for my phone...

is there any way I can grab contents of the SDcard directory using developers tools?

one of the menu in the stock recovery is to adb side load file name

is there any hope I can access the phone memory using a pc somehow and restore the folder ?

thank you

edit1: in android stock recovery  menu, I have the option to install package from SD card. 
The phone does have an SD card slot. 
is it possible to create a zip file that will some how restore the custpack folder back to root directory? 
I do have the deleted folder in my PC....
One method you can try is download and use Aroma File Manager. 
It's a recovery based file manager. Means you can access all files and do all file operations like cut, move etc. 

But not sure if it will work on un rooted device. 
But you can try.