Disassembly/Repair of the mobile device ZTE Nubia Z9 Max (ZTE Nubia Z9 Max NX512) with each step description and the required set of tools.

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 out. Should do it for each of the SIM and Memory card (Micro SD) trays.

⚠️️ 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.

We recommend using a special heating device such as a separator machine, heat gun, or heating mat. It will simplify the process. You can use a home hairdryer, but you will have to make a nozzle by hand or have a suitable one in the kit to gently heat and concentrate the heat flow in the right place.

ℹ️️ The surface of the back cover must be heated to soften the adhesive underneath. The approximate heating temperature is 50° C / 125° F.

Use a thin plastic film or pick for separation. To facilitate the process, you can use isopropyl alcohol. It is often the most difficult to pass the tool between the parts to be divided. Choose the far edge from the FFC cables or buttons.

Do not use a lever or any force for separation that could damage the elements inside.

Using a screwdriver Phillips 1.5 mm PH #000, unscrew two screws and remove the bracket holding 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 Max model has a battery Li3828T44P6hA74140 with 2900 mAh capacity (aka rechargeable battery).

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

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 13 screws.

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.

Pry over the edges and remove the cover and loudspeaker with antenna pads and tracks.

The battery is glued from the inside by the manufacturer. We have to use a plastic tool and isopropyl alcohol to soften the adhesive base and remove the battery.

⚠️️ Be careful! Under the battery is located the side buttons cable remember its location before the separation.

Carefully peel off the protective film.

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

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

Pry up the connectors of the power / volume buttons cable, navigation buttons cable, display module cable, underscreen cable, headphone jack socket.

Also, we have to hook the vibration motor at the edge and unstick it.

⚠️️ Be careful when removing the cables from the connectors, the cables are pretty thin, and it is easy enough to break them or damage the contact tracks inside.

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.

Pry at the edges and remove the earpiece speaker and headphone jack socket. Both are glued a bit with adhesive tape.

ℹ️️ In the display frame remained: