yashsingh1/xdaforums huggingface dataset:
[ZTE Z7, Z7 Max, Z7 Mini] voetbalremco:
Use the guide to rewrite IMEI with the Nubia Tool used to flash the new partition 3.01 rom.

Some people occured their IMEI to be gone after updating to the new partition, and with the tool they can restore it, even without a backup.

In that case you would place your old 4g phone's IMEI's into it.
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Nubia Tool can't read NV, I have one error (can't remember...)

Or maybe you have one like for one Nubia Tool working...
[ZTE Z7, Z7 Max, Z7 Mini] voetbalremco:
There are 2 versions, something like 1.x.x and 2.0.0. Try them out both. :D

Also, it might be needed to be on a Nubia stock rom or/and have usb debugging enabled..
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Have you some links? On Mega will welcome :)
[ZTE Z7, Z7 Max, Z7 Mini] endia:
it didn't recognise even one sim card, some services stopping and restarting in loop.. i did reflash the old version..
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
Did you flash it over the merged partitions ( Loli..) ?
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
I come from Cuoco92 2.51, is not Lolipop, maybe your problem come from your Lolipop Rom...
[ZTE Z7, Z7 Max, Z7 Mini] endia:
no, i'm on non-unified partitions (kitkat) rom
[ZTE Z7, Z7 Max, Z7 Mini] teldasur:
Well if it's the same miui rom 6.6.6 as mine you must be on unified partition to make it work...
[ZTE Z7, Z7 Max, Z7 Mini] endia:
i never went to lollipop on z7 mini, i'm on 5.6.19

http://en.miui.com/download-260.html

link shows 5.6.21 which i had bugs..

---------- Post added at 06:48 PM ---------- Previous post was at 06:42 PM ----------

how is it possible, first number on 6.6.6 indicates the year on miui roms? typo?
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
I tried to install the new 2 sims Miui version ( 5.6.21 ) . On TWRP 2860 : factory reset / install rom / reboot to system . Miui logo was on screen and I start waiting ,..., and waiting . I push the power & vol+ and it started into TWRP recovery . I start it again - but after language settings the screen goes black again. To short the story : I gave up after 2 hour and I installed Cuoco's 2.81 rom again. Unfortunatelly all Miui settings ( or re-settings ) clean up the 0 partition . And I have to reinstall TWRP again ( several times ) because it couldn't read sdcard 1.

As I can read on miui.com this rom are for unified partition. Where am I wrong ?
[ZTE Z7, Z7 Max, Z7 Mini] teldasur:
For unified partition you need to use this one :

Mirror for Miui 6.6.6<br />

https://mega.co.nz/#!FUwR0SLI!geKuFZNSgjxKNQJM3imQXIqxW0FRV8gKixFSy5ncnkk<br />

Works perfectly for me after 3.01 update..
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
Is it a dual sim version ?
[ZTE Z7, Z7 Max, Z7 Mini] teldasur:
I don't know. I'm only using one sim.
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Ok, I Tested with Nubia ToolStudio(English) V4.5.44

- Downgrade to Stock Rom (NX507J_CNCommon_V1.62-1021.zip) : Ok

- Backup with nubia ToolStudio : Ok

- Modification of nv.qcn : Ok

- Put new nv.qcn into zip for nubia ToolStudio : Ok

- Restore the new zip file with nubia ToolStudio : Ok

- Reboot : Ok That is easy :)

And *#06" NOT OK :(

I'm back with the bloody IMEI Grrrrrr :(

I think:

The SPC code (000000) is enough good for read, but not enough for writting...

If somebody have one solution, MP is welcome too ;)

NB: I tested too with differents Radio Rom:

- 1.62 Base Radio of the Rom

- 1.42 , Maybe one old one can work, but NO !!!!

- 1.82, No way !!!

I will be crazy soon...

HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

NB (number 2): If you have one (old) version of Nubia ToolStudio who work, is welcome too, please on link, if you answer me...
[ZTE Z7, Z7 Max, Z7 Mini] voetbalremco:
Hm, not so easy after all it seems..

Have you tried this one already?

Needs xposed and thus may require using a CM or simular rom wich works with xposed:

http://xdaforums.com/xposed/modules/xposed-imei-changer-t2847187
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Tested with my previous Rom... No way :(

Now, I test the last MiUi (with dual Sim working ), I don't know if xposed framework, work on it...

I will try...

Thanks for your's suggestions. :)

If Yes or Not, of course, I will report here ;)

Others ideas are welcome ;)
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
Miui 666 it's a single sim ROM. Maybe in few weeks it will be for 2 sims. as the normal version.
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Just for information, now we have one MIUI Rom for our Z7 Mini working in Dual Sim See Here :http://en.miui.com/forum.php?mod=vie...e=9#pid2448350
[ZTE Z7, Z7 Max, Z7 Mini] guidomagaldi:
Are you using miui? how is the battery life?
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Nice :)
[ZTE Z7, Z7 Max, Z7 Mini] guidomagaldi:
thank you!

thanks! I am on cuocos rom do you know how to install miui from here?
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
I used TWRP 2.8.1 And of course Wipe...
[ZTE Z7, Z7 Max, Z7 Mini] guidomagaldi:
with merged partition?
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
No, standard

---------- Post added at 07:20 PM ---------- Previous post was at 07:03 PM ----------

Good news, IMEI chager Xposed work with MIUI Rom 5.6.21 :)

But I have same IMEI on both sim cards...

I asked to vivekkalady to make one version for dual sim, I hope he will make ...

( http://xdaforums.com/xposed/modules/xposed-imei-changer-t2847187/page13 )
[ZTE Z7, Z7 Max, Z7 Mini] guidomagaldi:
can someone explain me how to install miui? I am on the last cuocos rom with merged partitions
[ZTE Z7, Z7 Max, Z7 Mini] munyukmambu:
has anyone tried to add all GSM and LTE bands on Cuoco ROM described here: http://xdaforums.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 ?

I'm on Cuoco ROM 2.83, it's the best i've had until now.
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
Install it as any rom : get into TWRP / made a back-up / wipe - factory reset / install (MIUI) ROM / reboot into system. The dual-sim + merged partition MIUI version is the one with 5-5-23. - miui_z7mini_rogue_5.6.23_a3dac51e1b_4.4

There are a lot of settings ( a mixture MIUI - Nubia ) and you have to be patient .
[ZTE Z7, Z7 Max, Z7 Mini] sepacek:
Yes I tried to add Band 20. It doesnt work.
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Try CDMA tools : http://www.cdmatool.com/download with Setup DFS 15.06.17.0.zip

This software find differents setting and now is like this screenshot ...

Tell us if this mod change something for you. I'm very instresting for my next travels ;)

I can't make a really good test because, in France my Orange Sim is the second one, and where I'm, I can't find a really good BTS in 4G.
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
I deleted some native Nubia Z7 mini bands in TDD because, I haven't here and scan will be fast ( or not :( ) ( Europe have only FDD ;) )

NB: If you find how change IMEI ( in hardware ) I take your tuto, I use since fews hours XPOSED IMEI Changer, *#06# said me is Ok, but i'm not sure ( yet ) . maybe the modem don't care of XPOSED IMEI Changer to informe my provider (in data) it's a new phone or not...
[ZTE Z7, Z7 Max, Z7 Mini] steph51:
hello,

User few months mini Z7, I tried all the available ROM, and I am arrested on cuoco ROM, the Version 2.83 (V5, unified internal RAM).

I'm a fan of MIUI ROM and I discovered that it is now operating in dual SIM.

what is the procedure for installing the MIUI ROM?

directly from TWRP? What version?

I should probably use jbart to translate it in French?
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Look, some previous post of this thread ☺
[ZTE Z7, Z7 Max, Z7 Mini] ayrton1974:
miui is not merge partiton
[ZTE Z7, Z7 Max, Z7 Mini] quejo:
I have flashed miui after updating to 3.1 and it just worked

Enviado de meu MotoE2(4G-LTE) usando Tapatalk
[ZTE Z7, Z7 Max, Z7 Mini] ayrton1974:
Miui dual SIM ?link ?miui unofficial 4.4 not lollipop not merge partition .
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
[MENTION=1547700]ayrton1974[/MENTION]: Man, you can read yourself on Miui forum that ( at least ) the last two versions update are for merge partition. Ok, its are still on 4.4 . [MENTION=2610602]quejo[/MENTION]: I installed it , no crashes , but there is a radio modem problem . It can't see the radio networks . Where did you set its ?

Also : there is an app " Google installer " by Eric Xiang which can be dowoloaded from Mi market . Did you find it ? Or how did you installed Google Play ?
[ZTE Z7, Z7 Max, Z7 Mini] MirosPikos:
I have tried MIUI ROM. From latest Cuoco92 with merged partition. Everything seems OK, except YouTube. And I would like to have MIUI Camera app, it has great HDR function, better than Nubia app.
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
In fact IMEI Changer Xposed, change only IMEI for softwares, but on BTS ( radio transmission ) the provider see originals IMEI :(

So If I want all my datas ( 20 Go in Fair use ) and not 3Go for now, I must find the way to change IMEI in hard in the modem...

But for the moment, all ways I used fails, IMEIs are write-protected :(
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
So, I will again ( Maybe I forgot something :) ) in this tuto : http://www.htcmania.com/showthread.php?t=1010482

I can't find 1.82 stock, so I download again the 1.72...

- Restore stock recovery. ( Maybe write-protect come from here... )

- Restore stock 1.72 ( Downloading... 3 hours again...)

See your when the download will be finish...
[ZTE Z7, Z7 Max, Z7 Mini] alain57:
lePocketPc : wouldn't it be faster to send a letter with acknowledgment of receipt to free mobile telling them that you give them 10 days to fix the issue of you will sue them for false advertising.

You could also make a picture of the IMEI Nr and a proof that the phone connect 4G ;)

Indeed free mobile is a provider, they sell you just a sim card, so it has to work even if you have an imported phone

beside that the IMEI check is stupid, if the phone is able to connect on 4G, they should simply register the IMEI number in their DB and allow the 20GB of data :eek:
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
Done, waiting answer...
[ZTE Z7, Z7 Max, Z7 Mini] Gemini72:
Hi All

Using latest/last YiOS ROM from this forum. All good except with this version phone is getting quite hot and battery life is shocking (like 50% drop over 2-3 hours with minimal use) and data signal quite poor and unstable.

Thinking of rolling back a version or even back to Stock and then trying Cucou92 or Smartdigi to get some stability. Does anyone know how to do this. I am thinking that if I have already been through the merged partition process I can put stock back on with no issues? Or do I need to run the Nubia installed tool again to put 3.01 back on? Any help would be appreciated.
[ZTE Z7, Z7 Max, Z7 Mini] Thiago Moya:
Hi guys, I have a doubt about Cuoco92 ROM.

I´m using only one sim (SIM 1), and network data is not working (3G/4G), It show a message "Sim has changed, need to reload network parameters. It will restart automaticlly after reload, please wait patiently." A Button "Immediately load" appears, but not happens.

Do I need a 2nd SIM to network data work?
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
You can switch to Cuoco's rom ( 3.01 or 3.04) installing it from TWRP and ( before it) factory reset . Do not wipe System !
[ZTE Z7, Z7 Max, Z7 Mini] Gemini72:
Great thanks. I had thought that I would have needed stock to do that even though I have a unified partition.......
[ZTE Z7, Z7 Max, Z7 Mini] El Philou:
How make an unified partition ?

I come from one Cuoco Rom with standard partion, and I installed the last MiUi Rom ( 5.7.3 http://www.miui.com/thread-2524458-1-1.html ) is one Unified :)

So I flash it with TWRP 2.8.1, but when I look in : Settings / About the Phone, I can see :Internal Memory 2.35GB / 16 GB !!!

So, I came back to TWRP and I wipe ALL (Internal / System / etc )

Reflash again MiUi 5.7.3 same result :(

How Have my 16GB free ? ( Of Course "near", minus few GB from OS )

Thanks for ypur help.
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
I noticed the same partition on MIUI but I didn't stay long on it. If you switch back to any other Loli ROM the partition goes as before - unified.
[ZTE Z7, Z7 Max, Z7 Mini] Leo_83:
I got my replacement battery, changed in 5 min. It was really easy, the old battery was swollen compared to the new one. Now I'm hoping this will solve my battery issues.
[ZTE Z7, Z7 Max, Z7 Mini] Leo_83:
Oh the battery life with a new battery
[ZTE Z7, Z7 Max, Z7 Mini] alain57:
I'm still waiting mine, i ordered it on aliexpress but time is long :/

I'm also afraid that it will be a battery taken from a broken phone...

I really hope that it is new or nearly new...

this was my first and last ZTE phone... never had any battery issue even with ****ty manufacturers...
[ZTE Z7, Z7 Max, Z7 Mini] Leo_83:
I also order it from Ali... Hope you gets yours soon. Be careful when removing the cover to get to the battery I think I damaged mine a little so now my back cover squeak and flexes a bit.
[ZTE Z7, Z7 Max, Z7 Mini] Oriwen:
Good news? There should be another version of Z7 official rom tomorrow (along with X6 and Z9) according to Nubia forum:

http://translate.googleusercontent....1.html&usg=ALkJrhjqWLMcHikt1Y31k9AhwP989v9fBw
[ZTE Z7, Z7 Max, Z7 Mini] MirosPikos:
I hope there will be solved SIM management.
[ZTE Z7, Z7 Max, Z7 Mini] abyssq:
Is there any new update today? I couldn't find anything.
[ZTE Z7, Z7 Max, Z7 Mini] MirosPikos:
Just downloading it. V 3.12.

link:

http://pan.baidu.com/s/1pJxaYM3

pass:

el1j

For download You can use jDownloader.
[ZTE Z7, Z7 Max, Z7 Mini] Leo_83:
Is there any information on what the update affects?

I hope Couco makes a version soon [emoji4]
[ZTE Z7, Z7 Max, Z7 Mini] Oriwen:
Changelog for v3.12:

V3.12 Update:

1. [increase] screen wallpaper function provided separately

2. [increase] custom lock screen unlock application function

3. [increase] the desktop font color intelligent adjustment function

4. [increase] immersive status bar displays

5. [increase] strange Caller identification, tagging

6. [increase] a key switch function

7. [increase] camera family

8. [increase] nubia cloud Albums

9. [increase] cloud backup file

10. [optimization] camera interface

11. [optimization] one-handed mode, can automatically adjust the position of the small screen and the screen size according to the action plan

Optimization firmware including but not limited to items listed above.
[ZTE Z7, Z7 Max, Z7 Mini] yobikap:
Is this update Android 5?
[ZTE Z7, Z7 Max, Z7 Mini] Parso:
Is 3.12 available from anywhere else apart from Baidu yet?

Also I highly recommend NOT to download that jdownloaderutil either - its full of Adware/browser hijacking and crap. I think it used to be OK ages ago but not now
[ZTE Z7, Z7 Max, Z7 Mini] flamery:
Official links and instructions: bbs.nubia.cn/forum.php?mod=viewthread&tid=502291&extra=&mobile=2

Will be trying mine tomorrow. Also there is a custom Nubia xposed for z7 on lollipop if you search those forums you will find it.
[ZTE Z7, Z7 Max, Z7 Mini] Browne81:
There's a download link for 3.12 from Yandex over at 4PDA. Currently downloading OK me in Australia.

**Edit**

Nubia Updater V2.0 doesn't work with it. Trying to find out if there's a new version of the updater now.

**Edit #2**

Need to download Nubia Updater V2.1 from the BBS.nubia.cn link above. Again downloaded OK for me in Australia as it's only 14Mb
[ZTE Z7, Z7 Max, Z7 Mini] Parso:
I'm in Aus too.

I'll have a look for his link. Hopefully the 3.12 version has re-enabled the 900mhz 3G band and possibly the 2100mhz 3G again, certainly the 900 3G band disappeared in 3.01 which I'm currently using - the phone was useless on Optus apart from 4G data, fine on Telstra though.
[ZTE Z7, Z7 Max, Z7 Mini] flamery:
Can someone confirm, can I update to 3.12 directly from 1.82. the following instructions from translater are not very clear if if we need to version hop though 3.0.1 first:

Wire brush to update this version , you need the current version v1.82, V2.03, V3.01 , if the phone is not above the current version, please upgrade, upgrade follows:

1. V1.82 upgrade: http://bbs.nubia.cn/thread-404622-1-1.html

2. V3.01 upgrade: http://bbs.nubia.cn/thread-454703-1-1.htm L

Also be carried out by way of the brush card upgrade, you need the current version V3.01 , card brush download link package: http://pan.baidu.com/s/1pJxaYM3

Password: el1j (MD5: 4C409536B1124A86E65F1B66E94E0C2C)

PS. I have all the files downloaded, direct off baidu. If anyone wants them, I can torrent them up.
[ZTE Z7, Z7 Max, Z7 Mini] avin4:
new stable Lollipop 3.12 for mini's been officially released

1. ROM link( in Chinese): http://pan.baidu.com/s/1hqGSezy (password:5mpy , MD5: 2651F3539381AA0B12A21B54729E2EBD )

Above rom can only be upgraded via official upgrade software: http://pan.baidu.com/s/1bnc0J1d (password: 2mua)

Be warned if u choose this one u must use the upgrade software I gave in the link, because there's some changes to the software, using old ones will cause boot loop.

Be warned using this method will lose all ur personal data and apps. U can only upgrade using this method if ur current rom is official 1.82 (4.4 Kitkat) or 2.03, 3.01 (5.0 Lollipop), if using other roms, CM or YIOS for example, the upgrade software will refuse to continue >_<. However, using MIUI6 is OK, because it is based on official 1.82.

2. recovery zip ROM: http://pan.baidu.com/s/1pJxaYM3 (passowrd:el1j, MD5: 4C409536B1124A86E65F1B66E94E0C2C)

This zip file can be flashed using both official and CM based recovery, provided ur current ROM is official 3.01, otherwise boot loop is also expected

As the files are too large, the only way to download them is by install a clound file management program issued by Baidu. Blame Nubia for not using cloud disk with English support :P

download link of Baidu cloud file manager:http://bcscdn.baidu.com/netdisk/Baid...njia_5.2.7.exe
[ZTE Z7, Z7 Max, Z7 Mini] jairusregio:
Hi guys! I have a problem about mobile data. The logo H+ is showing but i dont think that im connected to the internet cause i cannot load anything like chrome, coc or fb app. Any suggestions on how to change bands? Thanks in advance! Btw im running on mokee 4.4.4 rc7
[ZTE Z7, Z7 Max, Z7 Mini] MirosPikos:
Try jDownloader instead of Baidu Cloud.
[ZTE Z7, Z7 Max, Z7 Mini] renard01:
Hi,

has anybody tested the new 3.1.2 ROM?

What about app stability, for example WhatsApp?

regards,

Renard01
[ZTE Z7, Z7 Max, Z7 Mini] Leo_83:
[MENTION=4728673]Cuoco92[/MENTION] what is your latest rom for the zte Nubia Z7 Mini?

On the www.androidiani.com site I saw this version in your lollipop thread in the first post NX507J_3.01_UI2.9_COMBO_v2.79Rel_C92_BB72_TWRP

But then I saw this in a later post NX507J_3.12_UI3.2.0_COMBO_v2.84_ROW_C92&BB72

I seem to be on the first version, how come you never send information through rom update that a new version is available, that would help a lot for us that aren't Italian and thus don't go to the Androidiani site. Besides that keep up the good work [emoji106] [emoji106]
[ZTE Z7, Z7 Max, Z7 Mini] Oriwen:
Leo_83 - 3.12 rom is new rom, its not an update so no notification in OTA updater.

Going to Androidiani is easy on google chrome with automatic translation ;)
[ZTE Z7, Z7 Max, Z7 Mini] Leo_83:
Yeah I couldn't contain myself so I flashed it this morning [emoji13] and I saw a message about it being some kind of developer pre-release. Do you know more about it maybe?

Haha granted auto translate makes it easier but you still lose a lot of info on the translation, most of the time you have to play detective and puzzle together the words to get the meaning of it all. But yeah sure it can be managed.

Edit: Yes I know it is a new rom but it would still be great to get a notification about there being said new rom available so you can take the appropriate action. The way it is now you run a version until you think yourself "hmm it's been months since I update shouldn't there been something new... No one has posted anything on xda... Still better check androidiani just to be sure... What devil 3.12!! Be gone all bugs I lived with for the past months, the power of [MENTION=4728673]Cuoco92[/MENTION] condemns you"
[ZTE Z7, Z7 Max, Z7 Mini] Oriwen:
Well so far every oficial Lollipop rom for Z7 was beta release, nothing stable so maybe its still same? Chinese is harder for auto transtate than italian ....

Translations via google chrome are not that bad for italian, its readable and nothing much is lost (at least I think so).

You are right that would be good if there was some kind of online announcement on Cuocos ROMs, but I dont think its possible with app he is using for OTA updates. Who knows, maybe he will read it and add it to next update? We can hope.
[ZTE Z7, Z7 Max, Z7 Mini] Leo_83:
https://youtu.be/vAUOPHqx5Gs
[ZTE Z7, Z7 Max, Z7 Mini] pedrud:
So I seem to be stuck. I had used the nubia updater to get to 2.03 and rooted and dropped in TWRP. After that I did a TWRP backup. Next I did the usual steps and flashed CM12. Now I want to update again; but, my backup file of 2.03 is corrupted and won't boot. When I try to use the nubia update tool it doesn't see the phone even though it says the driver is installed correctly. I have also tried the steps that [MENTION=6575655]rx1[/MENTION] posted on 7 May, but that hasn't worked yet. In my device manager settings it has Android Phone with a dropdown that says Android Composite ADB Interface and the driver is installed correctly. However, a little further in the list it says Other Devices and lists Android with the yellow exclamation. Despite what I try it won't find the driver for that one. It's confusing because one says it is correctly installed (as does the Qualcomm Drivers installer) and the other does not. Ohh, and when I look at my computer (sorry not a PC guy, borrowing from a friend) under Devices with Removable Storage, the phone shows as a DVD player. Any ideas or help out here?

:confused::eek:
[ZTE Z7, Z7 Max, Z7 Mini] next4nextel:
Unfortunately your phone is corrupt, you most likely need to go back to stock first version 1.28 ROM 4.4.2 kitkat via Nubia tool studio and start over. Try this to get your phone working again. http://xdaforums.com/zte-z7/general/unbrick-nubia-z7-mini-t3006268
[ZTE Z7, Z7 Max, Z7 Mini] pedrud:
Just out of curiosity, how do you know the phone is corrupted? I currently am running CM12 (over nubia 2.03) without any problems. I was just hoping to update in the hopes of getting better signal and a few other minor things.

Edit: As I suspected, my phone is not corrupted. I just had the wrong driver installed. I've upgraded to 3.12 and flashed CM12.1 with TWRP.
[ZTE Z7, Z7 Max, Z7 Mini] asusade:
Problem with CM12.1

It happened to me too and I did exactly what you said. I installed the right drivers and upgraded to 3.12, but now I can't find a link to download CM12.1. Could you please tell me where did you find it or upload it anywhere? Thanks! :)
[ZTE Z7, Z7 Max, Z7 Mini] AGelu:
Here it is some versions ( from 4pda.ru ) -

https://drive.google.com/file/d/0ByjLJ1yxRZ48X01iaW1QR0FZWU0/view - a CM 12.1

https://yadi.sk/d/LwmPwHNFhkTYP - a MoKee based on CM 12.1

Another versions ( CM, KoKee or YIOS ) - all made by Zhaochengw, you may find on TD Beta - http://www.tdbeta.cn/forum-294-1.html , but downloading from Baidu my be sometime painfully .
[ZTE Z7, Z7 Max, Z7 Mini] guidomagaldi:
guys, in your opinion, which one is the best cm 12.1?
[ZTE Z7, Z7 Max, Z7 Mini] Gemini72:
For me it's YiOS the phone has never been so responsive and cool.
[ZTE Z7, Z7 Max, Z7 Mini] guidomagaldi:
thanks! does it have any bug? battery life?
[ZTE Z7, Z7 Max, Z7 Mini] Gemini72:
Battery life is good in comparison for me anyhow. Can't find any bugs to tell of. Mic could be better but I think that is a hardware issue.
[ZTE Z7, Z7 Max, Z7 Mini] guidomagaldi:
well , I think im gonna try it. Do you have a download link?
[ZTE Z7, Z7 Max, Z7 Mini] Gemini72:
Scroll back a few pages there is a post with links to latest version on mine is 5.1-20150723

---------- Post added at 08:08 AM ---------- Previous post was at 08:02 AM ----------

Sorry here

YiOS 2015-7-27 Download:

http://d-h.st/HaDT

You need to also read posts in the Z7/CM12 section of XDA-Developers.

---------- Post added at 08:10 AM ---------- Previous post was at 08:08 AM ----------

http://xdaforums.com/showthread.php?t=2980149
[ZTE Z7, Z7 Max, Z7 Mini] guidomagaldi:
thanks man!! does it have the exclamation mark issue?