How to root / update the fake Lenovo P780W I tried searching for a guide to root the 'lenovo' P780 w model - but this model doesn't seem to appear in the various lists of devices which can be rooted (such as Kingo Ready2Root or the list in this post).

The closest information I could find regarding the P780w was at xda-developer forums where one of the links there had a download with a rom and flash tool, but on the other hand indicated that there was no development for this type of phone, and that the rom was only for already broken phones.

I'm guessing that this is because the phone is a fake.

So my question is basically:

1) How can I safely root this fake phone and

2) [If it is actually possible to root this phone]: Is there a custom ROM for this phone so that I can update the operating system and Android version from 4.2.2 jellybean to 4.4 or higher?

I'm especially interested in advice from users which also acquired this phone and successfully rooted / updated it with a custom ROM.

PS: I'm sure it's the fake phone that I have. I purchased it via ali express China.

Also, if there are any necessary details about the phone which I haven't mentioned - please let me know and I will post them.
Most Chinese fake phones can easily be rooted as they do not carry any bloatware, skins, extra bundles etc. These phones contain a near stock version of android and thus, don't cause any problems (usually) while rooting. You should be able to use cyanogenmod, it usually works very well on Chinese phones.

Best of luck.
Rahul.

PS: To be on the safe side, remember to take a backup.