Disassembly/Repair of the mobile device Asus ZenFone 3 Laser ZC551KL (Asus Zenfone 3 Laser) with each step description and the required set of tools.

⚠️ Before disassembling, do not forget to turn your phone off.

Use the Key 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.

ℹ️️ Remember the location for the SIM and Memory card (Micro SD) trays so that nothing is confused when reassembling.

⚠️ 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 screwdriver (Torx T2), unscrew/drive 2 screws out at the end of the phone.

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

⚠️ Look in advance in the picture for the cables’ location for inter-board, touchscreen, display, buttons (if any) under the cover to not damage them accidentally.

⚠️ Pay attention to the fingerprint sensor cable glued to the back cover from the inside. (if there is one and it is glued to the cover)

Disconnect the fingerprint sensor connector and remove the cover.

Using a screwdriver (Phillips 1.5 mm PH000), unscrew the 2 screws and remove the bracket holding the connectors.

⚠️ Try to control and perform all actions carefully to not accidentally touch or short circuit anything on the printed circuit board.

Disconnect the battery connector as soon as possible.

ℹ️️ The Asus ZenFone 3 Laser ZC551KL model has a battery C11P1606 with 3000 mAh capacity (aka rechargeable battery).

⚠️ It is highly recommended to disconnect the connector to avoid possible short circuits during disassembly. Also, try not to use a metal tool to disconnect the rechargeable battery connector or do it carefully.

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 6 screws at the lower part of the phone.

Disconnect the coaxial cable connector, remove the loudspeaker assembly with antennas.

Disconnect the coaxial cable connector, cables to the mainboard, touchscreen cable.

⚠️ 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).

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

ℹ️️ The board contains a charging port (Micro USB), microphone, vibration motor, spring contacts for the speaker, and an antenna unit.

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

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 3 screws, remove the cover securing the camera and headphone jack.

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 4 screws securing the motherboard.

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

⚠️ 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.

Disconnect the connector and remove the rear camera.

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.

Disconnect the connector, remove the front (selfie) camera.