⚠️️ Before disassembling, do not forget to turn your phone off.
Disassembly/Repair of the mobile device Xiaomi RedMi 10 (Xiaomi RedMi 10 22011119UY) with each step description and the required set of tools.
Step 2. Remove the tray
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.
Step 3. Open the back cover
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.
ℹ️️ 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.
Step 4. Unscrew the screws
Using a screwdriver Phillips 1.5 mm (PH#000), unscrew the sixteen screws.
Step 5. Open the cover
Pry over the edges. Move an opening tool along the edge to detach the cover hiding the cameras and fingerprint sensor cable connector.
Step 6. Disconnect the connector
To disconnect the fingerprint sensor cable connector, we use a non-metal tool.
Step 7. Open the middle cover
Pry over the edges. Move an opening tool along the edge detach the clips and remove the middle cover with transmission lines and pads for antenna. The middle cover protects the printed circuit board (PCB).
Try to lift the cover by the edges and don't push anything too far inside, so as not to accidentally break or short-circuit anything on the circuit board.
Step 8. Disconnect the battery connector
Disconnect the battery connector as soon as possible. It is better to use a non-metal or plastic tool to avoid any damage.
ℹ️️ The Xiaomi RedMi 10 model has a battery BN5A with 5000 mAh capacity (aka rechargeable battery).
Step 10. Disconnect the connectors
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).
Step 11. Remove the daughterboard
Remove the sub-board. It may be glued to the frame or attached with attachments like latches or hooks, so be careful.
ℹ️️ The sub-board contains a charging port (Micro-USB), microphone, spring contacts for the speaker, vibration motor, and an antenna unit.
⚠️️ It is not necessary to insert the tool underneath when removing the sub-board. Internal components could be damaged.
Step 12. Remove the cameras
Now we go to removing the rear cameras. We pick up the connectors and remove the two large cameras. Then we can detach the two smaller cameras. The smaller cameras are quite similar, but the connectors are different, so we can't mix them up and put them in a different place.
After, we can gently pick up the front camera and peel off the copper thermal tape. It's best to keep the tape undamaged and reuse it when reassembling.
Step 13. Disconnect the connectors
Pry up the connectors of the display module cable, 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.
Step 14. Remove the motherboard
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.
Step 15. Remove the battery
All we have to do now is remove the battery. We need to unwrap the brown tabs A and B and we need to read which one of the tabs we need to pull.
From the description it became clear to us - we have to pull the wide tab with the letter A up. So just pull it up!
Detailed disassembly instructions of Xiaomi RedMi 10 in the video, made by our mobile repair & service center:
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