How can I downgrade the system software?

[Eaten]

After I updates the software to 33.0820.0810.121, my phone gone hotter, charge slower, use lagger, and even sometimes, auto shutdown. After sent to Asus Service Center in Malaysia, nothing is done, just .12345+ in calculator is made, nothing is fixed. 

And went to Asus Globe to Complain, nothing come back in return even shared my logs of my phone.

Sorry to ask, is Asus doing fine these day? 

[Anonymous]

Better factory reset your device first

Downgrader is not available for rog 7

[Eaten]

Factory reset is not doing anything better too. Still hot, slow, lag, and auto shutting down.

[Anonymous]

Hmm

Then its Firmware or Hardware trouble

You need too Call Asus Service

[Eaten]

Everything can be done done, is done, left things that can't be changed.