Teardown difficulty:
Moderate

Recommended tools

Disassembly/Repair of the mobile device ZTE Nubia Z9 Mini (ZTE Nubia Z9 Mini NX511J) with each step description and the required set of tools.


Specialist in content creation, distribution and content management.


How to disassemble ZTE Nubia Z9 Mini, Step 1/1 How to disassemble ZTE Nubia Z9 Mini, Step 1/2

Step 1. Remove the tray

Use the ejection tool (aka Needle) or Paperclip. Push the tip all the way into the hole until the tray ejects, and then pull the tray of SIM and Memory card (Micro SD) out.

⚠️️ Pay attention! The tool must be inserted into a hole on the edge of the phone's housing. Do not press too hard. It may break the tray eject mechanism.


How to disassemble ZTE Nubia Z9 Mini, Step 2/1 How to disassemble ZTE Nubia Z9 Mini, Step 2/2

Step 2. Open the back cover

Using a spudger or a plastic pick, carefully, around the edge, detach the back cover clips, and remove it.

Do not insert the tool deeply or bend it. Otherwise, the housing may be tampered with or damaged.


How to disassemble ZTE Nubia Z9 Mini, Step 3/1 How to disassemble ZTE Nubia Z9 Mini, Step 3/2

Step 3. Unscrew the screws

Using a screwdriver hex T5, unscrew 9 screws.

If the screws are different: ℹ️️ Be sure to note the location of the screws before disassembling. When assembling the device, screwing the screw in the wrong place may damage the device or its parts. To avoid damage, the removed screws and individual pieces (as gaskets or brackets) must be laid out in the appropriate order, or the screws and their holes in the phone must be marked with colored markers.


How to disassemble ZTE Nubia Z9 Mini, Step 4/1 How to disassemble ZTE Nubia Z9 Mini, Step 4/2

Step 4. Open the cover

Pry over the edge and remove the cover hiding the battery.


How to disassemble ZTE Nubia Z9 Mini, Step 5/1 How to disassemble ZTE Nubia Z9 Mini, Step 5/2

Step 5. Unscrew the screws

Using a screwdriver hex T5, unscrew two screws.


How to disassemble ZTE Nubia Z9 Mini, Step 6/1 How to disassemble ZTE Nubia Z9 Mini, Step 6/2

Step 6. Open the cover

Pry over the edge and remove the cover with a flashlight and camera lens protector.


How to disassemble ZTE Nubia Z9 Mini, Step 7/1 How to disassemble ZTE Nubia Z9 Mini, Step 7/2

Step 7. Unscrew the screws

Using a screwdriver hex T5, unscrew five screws.


How to disassemble ZTE Nubia Z9 Mini, Step 8/1 How to disassemble ZTE Nubia Z9 Mini, Step 8/2 How to disassemble ZTE Nubia Z9 Mini, Step 8/3

Step 8. Remove the loudspeaker

Pry over the edges and remove the loudspeaker assembly.


How to disassemble ZTE Nubia Z9 Mini, Step 9/1 How to disassemble ZTE Nubia Z9 Mini, Step 9/2 How to disassemble ZTE Nubia Z9 Mini, Step 9/3 How to disassemble ZTE Nubia Z9 Mini, Step 9/4

Step 9. Disconnect the battery connector

Disconnect the battery connector as soon as possible. It is better to use a non-metal or plastic tool to avoid any damage.

ℹ️️ The ZTE Nubia Z9 Mini model has a battery Li3829T44P6hA74140 with 2900 mAh capacity (aka rechargeable battery).

⚠️️ It is highly recommended to disconnect the connector to avoid possible short circuits during disassembly.


How to disassemble ZTE Nubia Z9 Mini, Step 10/1 How to disassemble ZTE Nubia Z9 Mini, Step 10/2

Step 10. Remove the battery

⚠️️ Be careful! The battery is glued from the inside by the manufacturer.

⚠️️The cable of the side buttons is glued under the battery to the display frame.

To remove the battery we can use a plastic tool and isopropyl alcohol to soften the adhesive base.


How to disassemble ZTE Nubia Z9 Mini, Step 11/1 How to disassemble ZTE Nubia Z9 Mini, Step 11/2 How to disassemble ZTE Nubia Z9 Mini, Step 11/3

Step 11. Remove the rear camera

Disconnect the connector on the motherboard, and remove the rear camera.


How to disassemble ZTE Nubia Z9 Mini, Step 12/1 How to disassemble ZTE Nubia Z9 Mini, Step 12/2

Step 12. Unscrew the screws

Using a screwdriver Phillips 1.5 mm PH #000, unscrew two screws securing the motherboard.


How to disassemble ZTE Nubia Z9 Mini, Step 13/1 How to disassemble ZTE Nubia Z9 Mini, Step 13/2 How to disassemble ZTE Nubia Z9 Mini, Step 13/3 How to disassemble ZTE Nubia Z9 Mini, Step 13/4 How to disassemble ZTE Nubia Z9 Mini, Step 13/5 How to disassemble ZTE Nubia Z9 Mini, Step 13/6 How to disassemble ZTE Nubia Z9 Mini, Step 13/7 How to disassemble ZTE Nubia Z9 Mini, Step 13/8

Step 13. Disconnect the connectors

Disconnect the connectors of the coaxial cable, cable to the sub-board, display module cable, sensor cable. Also, we have to pry carefully up at the side to unstick the vibration motor.

⚠️️ Do not pull on the cable or pry it with a sharp tool, the connectors are pretty weak and break easily, or the cable falls out of the end (lug).


How to disassemble ZTE Nubia Z9 Mini, Step 14/1 How to disassemble ZTE Nubia Z9 Mini, Step 14/2

Step 14. Remove the motherboard

Carefully remove the printed circuit board. There is no need to use a lever or try to reach the circuit board by force. Make sure that nothing is getting in the way or holding the circuit board.

The motherboard, also, may be attached with attachments like latches or hooks, be careful.

⚠️️ Do not bend the circuit board when removing it or push tools under it. Unbeknownst to yourself, you can damage components or cables from the inside.


How to disassemble ZTE Nubia Z9 Mini, Step 15/1 How to disassemble ZTE Nubia Z9 Mini, Step 15/2 How to disassemble ZTE Nubia Z9 Mini, Step 15/3 How to disassemble ZTE Nubia Z9 Mini, Step 15/4

Step 15. Disconnect the connectors

Disconnect the coaxial cable connector, cable to the mainboard.

⚠️️ Do not pull on the cable or pry it with a sharp tool, the connectors are pretty weak and break easily, or the cable falls out of the end (lug).


How to disassemble ZTE Nubia Z9 Mini, Step 16/1 How to disassemble ZTE Nubia Z9 Mini, Step 16/2 How to disassemble ZTE Nubia Z9 Mini, Step 16/3

Step 16. Unscrew the screws

Using a screwdriver Phillips 1.5 mm PH# 000, unscrew two screws. Also, we have to remove the coaxial cable.


How to disassemble ZTE Nubia Z9 Mini, Step 17/1 How to disassemble ZTE Nubia Z9 Mini, Step 17/2 How to disassemble ZTE Nubia Z9 Mini, Step 17/3

Step 17. Remove the daughterboard

Remove the sub-board. It may be glued to the frame with metalized tape, so to facilitate the process, the sub-board can be heated a bit.

The sub-board, also, may be attached with attachments like latches or hooks, be careful.

ℹ️️ The sub-board contains a charging port (Micro-USB), an antenna unit.

⚠️️ It is not necessary to insert the tool underneath when removing the sub-board. Internal components could be damaged.


How to disassemble ZTE Nubia Z9 Mini, Step 18/1 How to disassemble ZTE Nubia Z9 Mini, Step 18/2 How to disassemble ZTE Nubia Z9 Mini, Step 18/3

Step 18. Remove the navigation buttons

Carefully peel off the flat cable with a microphone and navigation buttons.


How to disassemble ZTE Nubia Z9 Mini, Step 19/1 How to disassemble ZTE Nubia Z9 Mini, Step 19/2 How to disassemble ZTE Nubia Z9 Mini, Step 19/3 How to disassemble ZTE Nubia Z9 Mini, Step 19/4

Step 19. In the display frame remained

ℹ️️ In the display frame remained: the earpiece speaker, side buttons.

Detailed disassembly instructions of ZTE Nubia Z9 Mini in the video, made by our mobile repair & service center:

If you have a question, ask us, and we will try to answer in as much detail as possible. If this article was helpful for you, please rate it.


Disassembling\Repair has medium complexity and takes about 8 minutes in time. Our manual is suitable for all models ZTE Nubia Z9 Mini — ZTE Nubia Z9 Mini NX511J released for markets in different countries.



Back to the list
˄˅

Advertisement

˃˂

Advertisement