Oct 21, 2020
Today, REWA LAB will walk you through a detailed explanation of three dot projector repair solutions and show you the three most popular dot projector repair tools in the industry. Which one is the best choice for repair shops? You will get the answer you want from this blog.
The fault is face ID not working - move iPhone a little lower/higher. Here we will introduce three different repair tools to fix the problem, which include JC, LUBAN, and I2C.
Firstly, we need to connect the dot projector flex cable with the three repair programmers directly. Then we will know immediately whether the dot projector flex cable is normal or not.
Notes: the JCID programmer requires official authorization.
While the repair solution of LUBAN is complicated.First of all, we need to put the phone into recovery mode. The following step is to connect the repair programmer to computer. Then we need to pearl unbind the encryption chip on the original dot projector module from the phone with the help of the software. The next step is to replace the original encryption chip and the capacitor on the module. And then pearl blind the new encryption chip to the phone.
Dot Projector Flex Cable
A grinding tool is needed in this step for the three repair solutions. So firstly, we need to grind the bottom bracket of the dot projector flex cable. Then we should separate the crystal from the flex cable carefully with a pry knife. The following step is to take out the dot projector flex cable carefully and continue to take down the MOSFET with the pry knife. After that, we also need to connect Pin 2 and Pin 3 of the MOSFET by jumping a wire.
Dot Projector Repair
With JC and I2C, all we need to do is to solder the dot projector module onto a new dot projector flex cable. While for LUBAN, this can be really difficult. In addition to the whole MOSFET thing, we also need to replace the encryption chip and the capacitor on the dot projector module. And before replacing the encryption chip with a new one, we have to solder a connecting FPC. What’s more, if the connecting FPC hasn’t been soldered well, you might get stuck in pseudo soldering or bridging. Once the encryption chip and the capacitor have been soldered properly, we need to put the phone into recovery mode. After that, we can connect the repair programmer to computer. Then we also should pearl bind the encryption chip to the phone with the help of the software.
We can test by connecting the dot projector flex cable with the repair programmer. Once we have confirmed that the dot projector flex cable has been fixed. The following step is to glue the crystal to the dot project flex cable carefully. After that, we can assemble the phone and test. We can see face ID setup can be completed successfully.
Apr 23, 2021
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