Disassembly/Repair of the mobile device Realme C35 (Realme C35 RMX3511) with each step description and the required set of tools.

⚠️ Before disassembling, do not forget to turn your phone off.

First of all, as usual, we need to remove the SIM card tray.

For this, we use a special eject tool, push the tray out, and set it aside.

Next, we need to heat the surface of the back cover to a temperature of approximately 70°C, or about 160 degrees Fahrenheit.

We’re using a heating mat for this, but you can also use a hair dryer.

After about 7–10 minutes, we can proceed with removing the back cover.

To separate the back cover, we use a thin plastic film, carefully insert it into the gap between the back cover and the midframe, and run it along the edge, cutting through the adhesive layer.

As always, be careful around the fingerprint sensor area, since there may be a flex cable located there.

Also, be careful around the camera area so you don’t accidentally touch or damage the lenses.

It’s also best not to bend the back cover too much, to avoid deforming or damaging it.

As we can see, the back cover is additionally glued around the camera area.

Next, we proceed to remove the screws at the top section.

To remove the screws, we use a 1.5 mm Phillips screwdriver or a Phillips #000.

It’s best to place the screws on a special mat in a specific order, since screws sometimes do not seat properly if installed into the wrong holes.

And we remove the screws at the bottom section.

If the screws are difficult to pick up, we can use tweezers to remove them.

After removing the screws, we detach the midframe.

For this, we also use a thin plastic film, inserting it into the gap between the midframe and the display frame in the area near the SIM tray opening.

After releasing several clips, we can switch to a thicker tool. As always, the cover is firmly secured around the edges.

Be careful not to accidentally damage the edge of the display.

And of course, be careful when detaching the cover, since the fingerprint sensor is mounted on the midframe, and its flex cable runs to the motherboard.

Using a non-metal tool we disconnect the battery connector.

ℹ️ The Realme C35 RMX 3511 uses a BLP877 rechargeable battery with a capacity of 5000 mAh.

Then we disconnect the fingerprint sensor connector and set the midframe aside, with its contact pads and antenna tracks.

In the lower section, we first detach the cover with the loudspeaker and set it aside.

Then we disconnect the interconnect flex cable connector, disconnect the coaxial cable connector, and free the cable itself from the clips on the sub-board.

Now we can remove the sub-board.

The sub-board contains the charging port, microphone, headset jack port, and other components on the reverse side.

The vibration motor remains in the display frame.

Now we move on to the motherboard.

First, we can disconnect the cameras.

Please note - the cameras are slightly glued in place; the connectors are secured, and the modules are adhered at the base.

Carefully pry them up and detach the cameras.

Do not use excessive force to avoid damaging the flex cables.

After that, we can disconnect the front camera.

It’s best to preserve the heat-dissipating foil for reassembly.

And of course, it’s best to cover the camera lens to prevent dust or debris from getting onto it.

Next, we disconnect the interconnect flex cable connector and the display flex cable connector.

We also need to disconnect the coaxial cable connector and free the cable from the clips.

Now we can remove the motherboard. Carefully pry it up at the correct point and remove it.

BTW, it’s not always easy to find the right spot.

And on the reverse side the motherboard may be held in place by thermal paste.

Finally, we proceed to disconnect the battery.

We need to peel back the transparent protective layer and pull up the green pull tab.

The transparent film should be folded back as much as possible so it doesn’t interfere, and the green tab should be pulled upward.

Under the battery, there is a transparent protective film that protects the interconnect flex cables.

ℹ️ In the display frame remained: the earpiece speaker, vibration motor, and cables.