How to fix Face ID 'Move Higher or Lower' Problem of iPhone X Above models ?

iPhone Face ID fix is quite difficult since it includes 3 encrypted parts: flood illuminator, infrared camera, and dot projector. The dot projector faulty is the most commonplace among the 3 parts.

These encrypted parts cannot be repaired by simply replacing them because of the data inside. We must use a special tool, that is, the reprogrammer to transfer the data, then replace the parts.

Dot Projector Re-programmer

There are mainly two kinds of re-programmer in the market now: the I2C dot projector re-programmer and the JC dot projector re-programmer.

By comparison, the I2C dot projector re-programmer is the better one. For one part, its operation is much more convenient than the JC re-programmer since it does not need to be connected to a computer while JC does. For another, its compatibility is better than JC, for the I2C re-programmer supports both I2C dot projector flex and JC dot projector flex, while JC re-programmer only supports JC flex.

In a word, we strongly recommend you choose the I2C dot projector re-programmer for Face ID faulty repair.

Here we share how to use the re-programmer to fix the dot projector faulty with an iPhone X.

Faulty Checking

First of all, we need to check the dot projector. What faulty is it? It is very easy, just connect the dot projector to the I2C re-programmer and click 'Test'.

After a few seconds, the result comes out, the iPhone X dot projector has been fusing.

Now let's fix it.

Data Transfer

First of all, we need to transfer the original dot projector data to a new flex cable. Here we use an I2C dot projector flex. Then do the following steps:

Connect the original dot projector flex to the I2C re-programmer.

Read data.

Disconnect the flex.

Connect I2C dot projector flex to I2C re-programmer.

Click write.

After a while, the data has been written in.

Jump Wire On MOSFET

The second step is to jump wire on MOSFET inside dot projector, do the followings:

There are three pins on the MOSFET and we need to jump a wire from one pin to another. First, apply solder flux on the MOSFET, jump silver wire on one pin, then weld the silver wire on another pin.

Apply solder flux on the encrypted chip, and install it back. Then heat it up for a while.

Dot Projector Replacement

The last step is to weld the dot projector on the new flex cable. First of all, apply tin on the I2C dot projector flex-X, heat it up for a while. Then weld the magnet ring on it and heat it up. Lastly, place the dot projector flex on the front camera flex.

Please note: when placing the dot flex on the front camera flex, the position should be accurate, or the "move iPhone a little lower" message will show up.

Hereto the repair has finished. We install the phone, power on, and set up Face ID. Without a doubt, the Face ID works perfectly.