CM 12.1

original discussion (in italian):http://www.androidiani.com/forum/zte-nubia-z7/472442-rom-z7max-android-5-1-1-cm-12-1-unofficial.html
in english: http://www.androidiani.com/forum/international-users-help/474427-rom-zte-z7max-android-5-1-1-cm-12-1-unofficial.html

Hi all, after a long time I came back with a new rom

it is a (multilanguage) CM12.1 Lollipop 5.1.1 entirely compiled by me, still it as some problems but is already usable

ONLY FOR MERGED PARTITION

what's working:
camera
flash led/torch
gps
wifi
dual sim
sensors
nfc (maybe)
Bluetooth
led notification/charger
FM Radio
Infrared​​

what's not working:
let me know

changelog:

29/08/2015 Release V10

-updated proprietary file (blobs) from last stock firmware 3.55
-updated baseband ver 3.55 (it can be downloaded here, flash without wipe)
-some optimizations
-sync cyanogen source code

25/08/2015 Release V9

-fix camera bug (from release V8)
-liblight: fix bug Home led always on when the navigation bar is active and charging phone
-Doubled the incall volume step (from 5 to 10)
-updated proprietary file (blobs) from last stock firmware 3.54
-updated baseband ver 3.54 (it can be downloaded here, flash without wipe)
-optimization and various modifications
-sync cyanogen source code

21/08/2015 Release V8

-bug: there is a little bug in setting preferred network type, after change all the options become gray and no longer be selected…simply go back and re-enter
-Added screenshot tile in quicksetting
-Doubled the volume step (from 7 to 14 for all volumes and 15 to 30 for the multimedia volume)
-liblight: fixed the random Home led lit up brighter than normal
-updated proprietary file (blobs) from last stock firmware 3.53
-updated baseband ver 3.53 (it can be downloaded here, flash without wipe)
-optimization and various modifications
-sync cyanogen source code

18/08/2015 Release V7

12/08/2015 Release V6

-Fix setting Preferred Network type (again)
-Added option for show/hide headset icon in Settings->Status Bar
-Added option for show/hide key navigation bar in Settings->Buttons (physical keys stay active)
-kernel: set to default intelliactive governor (instead of interactive)
-kernel: set to default westwood TCP congestion control (instead of cubic)
-optimization and various modifications
-sync cyanogen source code

07/08/2015 Release V5

-fix touch bug synaptics touchscreen
-fix recording call
-kernel: update to 3.4.108 version
-kernel: added several selinux patch
-kernel: added and updated zram support (from kernel 3.10, disabled by default…can be enable with trickster mod or similar app)
-kernel: added lz4 support
-kernel: added exfat filesystem support (for external sdcard and usb key)
-kernel: updated wifi driver
-optimization and various modifications
-sync cyanogen source code

02/08/2015 Release V4

-Added option for adjusting intensity vibration in Settings->Sounds
-Possible fix for LED Home button that occasionally lit up brighter than normal (to be tested better)
-kernel: few optimizations
-kernel: compiled with linaro toolchain 4.9 optimized for arm a15
-optimization and various modifications
-sync cyanogen source code 

26/07/2015 Release V3

-Fix wrong MAC Address
-Added a option to show/hide the statusbar root icon (#) (in settings->Status Bar)
-Added a option to show/hide exclamation mark on signal strength icons when there is no Internet connection (settings->Status Bar, this change is not in real time…to force the icons upate just enable/disable wifi or enable/disable airplane mode or simply reboot your phone)
-optimization and various modifications
-sync cyanogen source code (finally has been added the option for enable/disable the data connection in settings->SIM cards)

22/07/2015 Release V2

-Fix setting Preferred Network type
-Added network speed indicator in statusbar (can be enabled in settings->Status Bar)
-Implemented 3 battery mode profiles (in settings->battery):

• balanced: governor interactive, freq min 300Mhz – max 2.45Ghz, GPU max 578Mhz (the default profile)
• power save: governor conservative, freq min 300Mhz – max 1.57Ghz, GPU max 389Mhz
• performance: governor performance, freq min and max 2.45Ghz, GPU 578Mhz

-some optimizations and changes
-sync cyanogen source code

19/07/2015 Release V1

-optimized source code (liblight) led keys (now it is almost perfect)
-kayhandler added to manage the double tap to wake (I hope in some way help to fix the SOD bug)
-added app IR stock Nubia translated into Italian, Russian, English and Chinese
-reinserted the option "prevent accidental wake-up" removed by mistake in the beta3
-fix saving settings LTE/3G/2G
-changes in various configurations and optimizations
-sync cyanogen source code

16/07/2015 beta 3

-fix led lights on menù and back button (sometimes one button still light on…I'm working on it)
-add native multiuser support
-disabled USB Mass storage connection (useless with emulated sd)
-fix USB charging option
-probable fix for mic in google search (need more tests, needed the new gapps that I have uploaded on mega tk_gapps-modular-nano-5.1.1-20150705-signed.zip)
-fix setting LTE/3G/2G (for the moment is only a partial fix, after a reboot the setting return back to default value)
-updated proprietary file (blobs) with last firmware stock 3.22
-sync cyanogen source

14/07/2015 beta 2
fix thermal engine: increased performance (antutu score 43000~)
status bar: fix show percentage next to the battery icon​
sync cyanogen source code

11/07/2015 beta 1
added double tap to wake feature (can be enable in settings->display)
fix restart/shutdown crash
fixed an issue that sometimes the gps stopped working
enabled some compile flag for optimization
sync cyanogen source code

08/07/2015 alpha3
kernel:​ some tweaks
kernel: added some governor cpu
kernel: added some scheduler
kernel: added cpu voltage table
kernel: added LCD color calibration
(all kernel settings are configurable via Trickster Mod or similar app)
fix FM Radio​​​​​
fix Infrared​

06/07/2015 alpha2
first public release

ONLY FOR MERGED PARTITION

flash instruction:
first of all: backup all with twrp recovery
download rom and gapps
full wipe
flash rom and gapps
reboot

The first boot takes a bit 'of time

Root access can be enabled in developers options