Problema Toolkit per Root Acer Iconi b1 710

[mirkocci]

Dopo varie ricerche senza nessun risultato e smadonnamenti vari, ho deciso come ultima spiaggia di chiedervi di nuovo aiuto.
Il toolkit in questione acer iconia toolkit v0.8.5 mi riporta questo errore non appena premo invio per avviare la procedura di root:

======= Acer Iconia Toolkit v0.8.5 =======

Which device do you have?
[1] Acer Iconia B1-A71
[2] Acer Iconia A1-810 / A1-811 / A3-A10 / B1-711 / B1-720
[3] Acer Iconia B1-710 / B1-A710
[Q] Quit

Enter a selection: 3

======= Acer Iconia B1-710 / B1-A710 Toolkit v0.8.5 =======

What do you want to do?
[1] Root
[2] Unroot
[3] Internal 2 External (needs root)
[4] Odex (needs root)
[5] Pull system.img.gz from tablet
[Q] Quit

Enter a selection: 1

================== Root =================
Before we can start, please do following:
1. Make sure drivers for your Acer Iconia B1-710 / B1-A710 are installed, you ca
n find them here: http://goo.gl/Otbkb
2. Plug-In your Acer Iconia B1-710 / B1-A710 into this PC.
3. Enable USB Debugging Mode by going into Settings -> Developer Tools.
4. Put prerooted system.img.gz into folder: system_image of this toolkit.
5. Keep your device plugged in until it's finally rooted, or this procedure is a
borted!

If you sucessfully applied the steps above, we can now start.
You can always abort by pressing Ctrl+C


[ENTER] Continue
[Q] Quit

Enter a selection:
Traceback (most recent call last):
File "<string>", line 1405, in <module>
File "<string>", line 147, in main
File "<string>", line 186, in menu
File "<string>", line 683, in root
NameError: global name 'selection' is not defined

Avete qualche soluzione al riguardo?
Grazie anticipatamente

[mirkocci]

Proprio nessuno sa come risolvere questo problema?