Disassembly/Repair of the mobile device Xiaomi Mi 8 Lite (Xiaomi Mi 8 Lite M1808D2TG) 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.

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.

ℹ️ 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.

⚠️ Pay attention to the fingerprint sensor cable! The cable connects the fingerprint sensor on the back cover to the motherboard.

Pry up the fingerprint sensor cable connector and remove the back cover.

Using a screwdriver (Phillips 1.5 mm PH #000), unscrew the four long screws.

Using a screwdriver (Phillips 1.5 mm PH #000), unscrew the five silver short screws.

Pry over the edges. Move an opening tool along the edge detach the clips and remove the cover with antenna pads and tracks, and an NFC tag.

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

ℹ️ The Xiaomi Mi 8 Lite model has a battery BM3J with 3250 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 PH #000), unscrew the eight screws.

Pry over the edge and remove the loudspeaker assembly with antenna tracks.

Using a screwdriver (Philips 1.5 mm PH #000), unscrew one screw securing the sub-board.

Disconnect the coaxial cable connector, inter-board cable connector.

⚠️ 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 may be glued to the frame or attached with attachments like latches or hooks, so be careful.

ℹ️ The sub-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 underneath when removing the sub-board. Internal components could be damaged.

Using a screwdriver (Philips 1.5 mm PH #000), unscrew one screw securing the cameras cover.

Pry over the edge and detach the cameras cover.

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

Pry up the connectors of the 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.

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 up the connectors and remove the assembly of the two rear cameras.

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

ℹ️ In the display frame remained: the earpiece speaker, battery, coaxial cable, and vibration motor.