[MODDING] ZTE Nubia Z9 Mini

[Cuoco92]

Hi everyone! Apologies for writing in English, but I am from Spain and I can't speak Italian (although I can understand it more or less).

First of all, thank you very much for your great work, specially to Cuoco92. I have recently purchased a ZTE Nubia Z9 mini and as far as I know, yours is the best forum to get information and development about our smartphone. Particularly, I am testing this last multilanguage ROM and it works really well. Until now, I am really happy about its performance.

My main issue is not directly related with this version. I had a bootloop some days ago. Although I finally managed to recover my Nubia, I have lost the wifi and bluetooth connectivity. I have tried to solve this flashing different ROMs (official v1.16, v1.19 and 3.10, cuoco's multilanguage 1.19 and 3.10, miui and cyanogenmod), always previously wiping data, dalvik and cache (in some occasions I wiped even system and all storage). I feel very lost as I have been searching in different forums and I haven't found any solution. I'm trying to flash a backup that I have found in the internet, but I'm not very confident about if it will work. Does anybody know any solution?

Thank you very much.

@oleg80
you can't activate it? Even pressing on the toggles? Then you have to flash the persist.img through fastboot to restore it 😉

[oleg80]

Hi, if you have wiped all the partition (first of all the system one) and you have the same problem (no wifi and bluetooth connectivity) I think it is a problem HW related... but if you can show us what kind of error you have when you go into Settings -> Wifi and Settings -> Bluetooth is better.

Let us know.
regards

Thank you for your fast response, S3pHiroTh83. The problem is directly that the wifi and the bluetooth never are on. When I push the switch it moves to on, but the system doesn't respond and I haven't access even to the advanced options (at the bottom of the screen). It's not a matter of finding wireless networks. The problem is that my Z9 is not supporting the wifi and bluetooth connectivities. I will try to make some screen captures in a few minutes (I am trying to flash an external backup right now).

[oleg80]

@oleg80
you can't activate it? Even pressing on the toggles? Then you have to flash the persist.img through fastboot to restore it ��

That's exactly what happens, Cuoco92. Thank you very much. I didn't know which partition I had to flash to solve the problem. Do you know where I could find this persist.img and how to flash it? Is it included in the custom ROM?

[Cuoco92]

That's exactly what happens, Cuoco92. Thank you very much. I didn't know which partition I had to flash to solve the problem. Do you know where I could find this persist.img and how to flash it? Is it included in the custom ROM?

No it'isnt included. To flash it is very simple, and it can be done through recovery, with a zip patch too.
You have to find a full firmware with img partitions. Or maybe, someone can dump it for you. I don't have a z9 mini phone, so I can't dump any partition. I didn't know if the persist from z7 mini will works on z9. It would be very risky 😅

[oleg80]

No it'isnt included. To flash it is very simple, and it can be done through recovery, with a zip patch too.
You have to find a full firmware with img partitions. Or maybe, someone can dump it for you. I don't have a z9 mini phone, so I can't dump any partition. I didn't know if the persist from z7 mini will works on z9. It would be very risky ��

Would it be possible to do a backup of the persist partition in other Z9 mini using TWRP and then use the restore tool to flash it?? When you are going to do the backup TWRP let you choose which partitions you want to save.

[Cuoco92]

Would it be possible to do a backup of the persist partition in other Z9 mini using TWRP and then use the restore tool to flash it?? When you are going to do the backup TWRP let you choose which partitions you want to save.

Sure you can backup a working persist.img from another phone with TWRP, then restore it to yours😉

[oleg80]

Sure you can backup a working persist.img from another phone with TWRP, then restore it to yours��

Thank you very much, mate! Now I need to get one.

Some friend from this forum would like to help this stupid spanish?

[Cuoco92]

Thank you very much, mate! Now I need to get one.

Some friend from this forum would like to help this stupid spanish?

You're welcome I hope it 😉

[S3pHiroTh83]

Thank you very much, mate! Now I need to get one.

Some friend from this forum would like to help this stupid spanish?

Here the link https://mega.co.nz/#!JYdinA5I!S3Yh1_...pyKLbOLJLTGGfc
It is a TWRP backup, extract the zip file into internal storage and then restore backup.

[oleg80]

Hi again, Cuoco! I have got a persist partition backup from a spanish forum friend and restored it in my Nubia. It worked! I have now wifi and bluetooth again. Thank you very much!!!