Hello All,

I'm new here, and a noob regarding flashing/upgrading/rooting tablets.

I own a Pipo M7 Pro, WiFi bought October 2014.
Kernel version 3.0.36+ dec 5, 2013.
Build number rk30sdk-eng 4.2.2 JDQ eng.root.20131205.134750 test-keys
Works reasonable well, WiFi however is very unstable*.
I like to:

Root it.
Problems encountered: One click root and Kingo root won't work. Kingo says it cannot connect. One Click Root stalls. USB debugging is on.
Tried to install the RK3180 driver, but Windiows 7 doesn't recognize the drivers, 32 or 64 bit. (I'm running Win 7 X64)

Also I condsidered to flash rooted firmware like Riley or (preferrably) Kasty
I installed the Rockchip Batch Tool v1.7 on my computer, and it seems to recognize the tablet. It loads the Kasty image.
That's as far as I dare to go. I'm very hesistant to continue, as I'm afraid to brick the tablet.

Next to this all, I found a newer firmware version for the M7 Pro on the Pipo website, 20140301_M7T_3G_4.1_[chinese characters]_649.rar which contains a file

update.img, and another: M7pro#128_892_EN.img

My questions:
Is it of any use to install one of these this images, and if so, which one before installing rooted firmware?
If something goes wrong, how do I go back to the original firmware?
Is it possible to upgrade to Android 4.4.2?, if so, has it any advantages?
* Has any of you noticed that upgrading to newer/other firmware improves the unstable WiFi connection?
I found some hardware mods on youtube concerning altering the WiFi antenna, with good results.
(i.e. ) This mod makes sense to me, and I'm not afraid to open the tablet and alter the wiring accordingly.
Maybe I can make a similair mod to the GPS antenna, as the GPS performance of the tablet is very disappointing as well

So far so good, hope to get some input from the specialists on this forum.

Regards
Peter