Disassembly/Repair of the mobile device UMI IRON Pro 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 screwdriver (Phillips 1.5 mm PH #000), unscrew the six screws on the sides.

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.

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 UMI IRON Pro model has a battery with 3100 mAh capacity (aka rechargeable battery).

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

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

Disconnect connectors and remove the coaxial cable.

With extreme care, remove the battery because it is glued from the inside by the manufacturer.

Also, we need to remember or look in advance at the location of the flat cables under the battery, so as not to damage them.

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

Disconnect the inter-board cable connector. Also, we pry up the vibration motor and 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 antennas.

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

Disconnect the connector on the motherboard and remove the fingerprint sensor.

Pry up the connectors of the side buttons cable, display cable, inter-board cable, touchscreen 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 PH #000), unscrew the three screws.

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 bottom and remove the earpiece speaker.

⚠️ Be careful! The earpiece speaker is glued a bit with adhesive.

⚠️ If we pry the speaker in the middle we may break the earpiece speaker in half.

Peel back the inter-board cable and remove it.

ℹ️ In the display frame remained: