Disassembly/Repair of the mobile device Lenovo ZUK Z1 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 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.

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.

⚠ Be careful when opening the cover from the volume and power buttons side. Thin cable and fragile buttons are straightforward to damage.

Using a screwdriver (Phillips 1.5 mm PH000), unscrew six screws on the upper part.

Remove the cover with antennas. The cover protects the printed circuit board (PCB). Try to lift the cover by the edges and not push anything between them to not accidentally touch or short-circuit anything on the PCB.

Disconnect the connector on the PCB and remove the battery.

ℹ️ The Lenovo ZUK Z1 model has a battery BL255 with 4100 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 seven screws at the lower part.

Remove the loudspeaker assembly with antennas.

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

Pry and remove the middle frame.

Disconnect the connector on the PCB and remove the front (selfie) camera.

Pry up the connectors of power volume buttons cable, display module cable, inter-board cable, and coaxial cable.

⚠ Be careful. Most of the cables connectors are located from the inside.

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

⚠ 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 up the headphone jack/socket and remove it.

ℹ️ In the display frame remained: the earpiece speaker, charging port, vibration motor, cables.