Using the Key tool (aka Needle) or Paperclip and open the SIM and Memory cards (Micro SD) tray and take it out.
⚠️ Pay attention! The tool must be inserted into a special hole on the edge of the phone's housing. Do not press too hard, it may break the tray ejection mechanism.
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 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 3 screws, and remove the bracket holding the connectors.
⚠️ Try to control and perform all actions carefully so as not to accidentally touch or short circuit anything on the printed circuit board.
Pry up the fingerprint sensor connector and remove the cover.
Disconnect the battery connector as soon as possible.
ℹ️️ The Huawei Honor 8A model has a battery HB405979ECW.
⚠️ 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 7 screws at the upper part of the phone.
Remove the loudspeaker assembly with antennas.
ℹ️️ This loudspeaker is installed on a large number of models of this manufacturer and it is quite simple to change. To replace the loudspeaker, you need to gently heat its surface to soften the glue base, but a new one - be sure to glue it! Otherwise, when playing sounds and music, the speaker will rattle and make extraneous sounds.
⚠️ It is important while reassembling, checking the spring contacts on the board, and the contact pads on the cover match and touch. Otherwise, signal loss or signal may be quite weak.
ℹ️️ 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.
Pry up the connectors and remove the inter-board 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).
Carefully, preferably from the edge, disconnect the connectors, and remove the inter-board cable connecting the mainboard to the daughterboard (also known as the sub-board).
⚠️ 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.
ℹ️️ An arrow on the FFC cable (flexible flat cable) indicates its correct position.
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 4 screws.
Pry and remove the cover with antennas, that protects the printed circuit board (PCB). Try to lift the covers by the edges and do not push anything between them, in order not to accidentally touch or short-circuit anything on the PCB.
ℹ️️ On the upper cover, you can see the metalized coating on the plastic in the form of tracks and contact pads. These are Wi-Fi, Bluetooth, and GPS antennas.
⚠️ It is important while reassembling, checking the spring contacts on the board, and the contact pads on the cover match and touch. Otherwise, signal loss or signal may be quite weak.
Pry up the connectors of power volume buttons 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 on PCB and remove the main camera.
Disconnect the connector on PCB and remove the front (selfie) camera.
Using a screwdriver (Phillips 1.5 mm PH000), unscrew 2 screws on the mainboard.
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.
ℹ️️ In the display frame remained: earpiece speaker and battery.
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Huawei Honor 8A