[Q] [Help] Root tablet Polaroid MID2407 (KK 4.4.2 KOT49H 2014/23/06) topic

Hello everyone,

it's been over 20 hours I'm trying to root a Polaroid MID2407 tablet that my mother received to be able to use a USB 3G Vodafone Mobile Broadband dongle and I immediately understood that it was necessary to root the tablet...

Information about my tablet:

Polaroid 7 " MID2407PCE02
Hardware: gs702c
Model: MID2407
Build number: MID2407-user 4.4.2 KOT49H eng.cx.20140623.100409 release-keys
Build UTC date: 20140821-100653
Android v 4.4.2
Baseband v: -----
Kernel v: 3.4.0+ (huangyingyuan @ srv-fw-compile3) (gcc version 4.6.1 (Sourcery CodeBench Lite 2011.09-70)) # 1 SMP Mon Jun 16, 2014 2:15:58 p.m. CT


I already tested without success (and after ten malware!):
- All "onle Click Root App" as Kingo & co.
- RootGenius
- Impactor
- Bin4ry
- CF-Auto-Root
- VRoot
- Odin
- towelroot
- ...

What works: adb, but I have that as a result of a "adb shell id"

Code:

---

uid = 2000 (shell) gid = 2000 (shell) ...

---

And then I don't know what to do .... ?script? where find script?

Mtk Droid Tools gives me this:
"In system already available: Android Debug Bridge Version 1.0.32

Code:

---

  --- >>> <<< --- Connect to device
  --- ERROR: --- TotalBytesPerChunk Not Found. Set default page / Spare = 2048/64 !!!
  --- Unknown ROM structure, backup NOT possible!

---

Again I am lost ...

I ask not fit all, but just tracks on where and what to look for to keep moving forward...

All suggestions are welcome, thank you!

Note: I'm on Windows, but I've also Linux, so if there are tools for Linux, I'm interested also ...

*edit*
Important note: I do not know how to access to the boot menu of my tablet ... I have a power button and a large volume +/- button, but nothing happens unless a "reset"! And I also have in the back a small hole but it's just a "reset" and there is no information on the website of polaroid.