well for the sake of the matter i ended up flashing my n9 for the 11th time FULLY yester night.
now all i want to do is use my n9 to the fullest possible.

what i use is
- the chinese dialerplus pro 1.1.1 (PAID for it), but no eng support [wonder if someone could translate the app to ENG]
- billboard 1.1.1
- lockscreen shortcut
- status menu extensions
- compass pro
- whatsup (for it to properly work i follow install wazzapp, wazzapp path, and then install whatsup, reboot and try to register)
- filebox
- my explorer
- tactical flash light app
- battery usage
- kill search
- flappybird game
- warehouse 0.1.8
- quasarmx
- recorder
- vesuri homescreen settings for landscape unlock

(also n9qt for all the status bar clock mods and some other tweaks; i have also removed builtin facebook, skype, twitter and youtube via that)

now i dont know what but something in the above or some setting is messing up my device.

it heats up a lot near the upper area and also calls are messed up

could someone guide me what i should follow for a cleaner and a better and a stable device for daily use.

i follow the full erase flash, then reflash.
then enable developer mode, install the 2.5mb downloads and have terminal and sdk in the menu.
then disable the security warning message.
then flash openmode kernel and reboot.

after that i am trying to flash this kernel.

now what do i need to do.

someone pls guide from scratch.
i am performing a clean flash now,
pls guide

regards