Disassembly/Repair of the mobile device Haier I6 Infinity 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.

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

Remove the rechargeable battery.

Also, try not to use a metal tool to remove the battery or do it carefully.

Using a screwdriver (Phillips 1.5 mm PH000), unscrew 15 screws.

⚠ Try not to touch the camera. The camera is quite fragile! If you leave prints or other marks on the lens, it will be difficult enough to clean the lens, and the quality of the images may deteriorate. 

ⓘ Be sure to note the location of the screws before disassembling. When assembling the device, screwing the screw in the wrong place may damage the device or its part. To avoid damage, the removed screws and individual pieces (as gaskets or brackets) must be laid out in the appropriate order, or the screws and their holes in the phone must be marked with colored markers.

Using a spudger or a plastic pick, carefully, around the edge, detach the middle 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 very easy to damage.

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

⚠ Pay attention to the fingerprint sensor cable glued to the back cover from the inside. 

Using a screwdriver (Phillips 1.5 mm PH000), unscrew the 1 screw in the daughterboard.

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.

ⓘ 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.

Disconnect the coaxial, inter-board, and side buttons (FFC) cable connectors on the daughterboard.

⚠ 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 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.