[General Questions and Answers] Ghoymakh:
Presenting Problem: Tablet is stuck rebooting itself once it gets to the booting screen animation, USB Debugging was not turned on on the tablet when it was working properly last time, and I need to turn USB Debugging on to fix my tablet. How do I do this?

Disclaimer: Yes, you'll think there are a million other threads about enabling USB debugging and whatnot, but this is totally different!

The Story: My device is a Grid10 tablet. It runs its custom OS built on Android Kernel (Gingerbread). Everything about it is android, except it's not android (and it's not a custom launcher or a skin).

... anyway

The Grid10: Almost nobody here own a Grid10 (I assume), so here's the thing... the Grid has only ONE button. The power button. No volume buttons, no home or back or menu buttons or anything... all those commands are gestures on the Grid (... if it started properly)

The Problem and its Cause: Now, It's stuck continuously rebooting itself once it gets to the the booting animation screen because I mistakenly deleted a file from system/app called SettingsProvider.apk

The Solution: I have the missing file on my laptop, and I need to put it back on the tablet. When I plug in its USB cable, I don't get a drive in My Computer. Obviously, it won't get into storage mode without being told to do so from the settings list (which I have no access to... because it's stuck rebooting itself at the booting animation screen... yes, I'm repeating myself so no one will tell me to "enable USB debugging" when I say that...)

So aparently,

to get the file on my Grid, I need to use adb

.

And since I didn't have USB Debugging enabled when the Grid was last operating properly, the adb can't see my tablet! (as shown by a 'adb devices' command).

The Sucky Recovery Menu: There is no fastboot on this thing (not that it would help with anything), but there is a recovery menu i can access (by holding down the power button while the tablet is booting), but it's no use. It looks like some kinda' custom recovery menu called "PBJ40 Recovery Utility". It has 4 commands:

reboot system now

wipe data/factory reset

wipe cache partition

apply sdcard: update.zip

I've tried all of these commands (selecting is done by pressing the power button, and when un-pressed for a few seconds, whatever command is highlighted gets executed).

My best bet would have been the update.zip as I created a signed update.zip with the missing file in it so it can put it back in its rightful place... but sd card in question appears to be the built-in sd card, and not the external (removable) sd card... the recovery tool doesn't even look in the external sd card for the update.zip

In Short: To get the file on the tablet, for now, the only way I can see how, is through adb, and seen as how USB Debugging was not enabled when the Grid was operational last time, I come here, to the XDA Forums, asking for advice.

The Question(s):

A) How do I turn on USB Debugging on the tablet so i can use adb and fix it?

or

B) Is there some alternative way for me to get the missing apk in system/app folder that does not require USB debugging?

Got you scratching your brain? Been trying to solve this for so long, I finished scratching mine, and started hitting it against the wall now!