How to Fix iPhone X Camera Not Working Issues – Logic Board Repair

The iPhone has a very precise motherboard. Once the phone falls, it is easy to affect the shooting function. Today, REWA LAB will show you how to solve the camera not working problems on iPhone X.

Cosmetic Inspection

First, run cosmetic inspection. The board hasn’t been water damaged or dropped.

Test & Assemble

Second, get the motherboard installed and test. Get a known good iPhone X back glass assembly then get the motherboard well installed. Connect the power flex cable, the charging port flex cable, cameras, etc..

Key Tips: It’s necesarry to connect the earpiece speaker and sensor flex cable. Otherwise the screen will dim after booting up.

After finish the assemble, turn on the phone. Tap ‘Camera’ icon and enter into camera mode. We can find that the front camera and the rear camera can not be activated. What’s more, the flashlight also can not be activated also. Judging from this, we need to focus on the rear camera circuit.

Diagnosi

Let’s attach the motherboard to the PCB Holder. For better inspection, tear off sponge around connectors first. Then we should check the motherboard under the microscope. We can find that one component next to the power flex cable has fallen off the board.

Our guess is that due to improper operation, the component was pried off when the power flex cable was disconnected by the unknown repairman. Beside, the bonding pad has also been pried off the board.

Next we need to open the point map and find the relevant component information. Here we recommend using REFOX. A concise and smooth bitmap software that provides reliable schematics and board files for Apple/Samsung/Huawei (so far) motherboard repair.

The missing component is inductor FL3903 which is the protective inductor on the 1V1 power supply line of the rear camera. Since the bonding pad has also fallen off the board, we need to connect Pin 1 of FL3903 with Pin 1 of C3928 by jumping wire.

Filo per saltare

Here are the specific steps:

• Applicare alcuni pasta per saldare to the bonding pad with Soldering Iron at 360℃.
• Prepare a length of Enameled Copper Wire of 0.02mm in diameter.
• Jumping a wire between the two pins with Saldatore.
• Cut off the excess wire with Coltello da scultura.
• Apply some UV Curable Solder Mask to the wire for insulation protection.
• Solidify the board under UV Dryer Lamp for 5 minutes.

Assemble & Test

Finally, we can assemble the phone and test. Tap ‘Camera’ icon and enter into camera mode. The front camera and the rear camera work normally.

Suggerimenti caldi: ottenere il telefono completamente assemblato dopo la conferma dell'eliminazione del guasto.

If you’re interested in learning more about cell phone repair, you can visit Accademia REWA. They offer free courses, video tutorials, and other resources to help you acquire the skills required to become a successful cell phone repair technician. Additionally, you may contact REWA Academy to schedule a free consultation or to inquire about cell phone repair.

For more details on the repair operation, click on the video below: