Disassembly/Repair of the mobile device Acer Liquid Zest Z525 (Acer Liquid Zest Z528 4G) with each step description and the required set of tools.

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 17 screws in the frame of the phone.

Carefully, pry at the edges and remove the middle cover. On the middle cover is a speaker, contact pads, side button keys.

From the chamber in the middle cover we take out the loudspeaker.

Disconnect the battery connector as soon as possible.

ℹ️️ The Acer Liquid Zest Z525 model has a battery T06 with 2000 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.

Disconnect the coaxial cable connector, cable to the touchscreen, and inter-board cable on the daughterboard. Also pry at the edge and unstick the vibration motor's body.

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

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

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

Disconnect the connector and remove the main (rear) camera.

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

Using a screwdriver (Philips 1.5 mm PH000), unscrew two screws securing the motherboard.

Turn over the motherboard, disconnect the coaxial cable connector and remove the motherboard.

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.

Carefully remove the coaxial cable. Also, remove the earpiece speaker. Be careful, the earpiece speaker is glued a bit.

ℹ️️ In the display frame remained: