Welcome to HowFixit in this video I will show how to restore True Tone when replacing the
display on the iPhone.
And also I will tell about iCopy programmer from Qianli.
Beginning with the iPhone 8 when you replacing the display, you lose True Tone.
That's because there is a firmware in the display, which is connected with the motherboard
and which needs to be transferred to the new display, that’s you need programmer like
this.
If you do not transfer this firmware, True Tone will not work, even if you install the
original display from another similar iPhone.
Therefore, it doesn't matter if you install the original display or a Chinese copy, firmware
transfer will need to be done.
I will show using the iPhone XR as an example how to transfer firmware from one display
to another.
So, I disassembled the iPhone and suppose that this display is broken and I will change
it to this one.
Now you need a programmer to transfer the firmware, and I will use the iCopy programmer.
There are also many other programmers, but this one seemed to me the most logical and
useful.
This programmer can work from the lightning cable, the same as on the iPhone.
The programmer is turn on and now I connect the display cable to the board, in my case
it is a connector for iPhone XR
As soon as the cable is connected, the programmer immediately reads the firmware of display
and now you can see this data on the display.
Now I click on the “Read” button and wait for the copying of the firmware of the display.
That's it, the firmware is copied and now I can connect the replaceable display.
The main thing is not to confuse a cracked display with a new replaceable one, I remind
you again - you need to copy the firmware from the broken display to a new one.
Connect a new display and click on the “Write” button.
Wait for complete of writing process of firmware to the new display module.
So, the writing firmware process is completed and now you can turn off the display, reinstall
the earpiece and use the new display with True Tone.
Now about the iCopy programmer from Qianli.
This is a useful device that doesn’t need the installation of any additional software,
as you saw, everything was done by pressing all two buttons.
The case is made of aluminum (it looks like an old-style phone) and most importantly - that
has clear interface.
It supports 3 languages; English, Spanish and Chinese.
This device supports copying firmware of display modules starting from iPhone 7 and iPhone 8
as well as 7 Plus and 8 Plus
Later models like iPhone X, XS, iPhone XR and iPhone XS Max.
These two connectors for the copying firmware of the vibration (Taptic Engine) because also
need to be re-flashed when replacing it.
And at the bottom there is an open bus - it is needed for a direct connection to the motherboard.
For example, the broken display is lost; in this case, the wires soldered to the iPhone
motherboard using this bus and read the data of display module for True Tone recovery directly
from the motherboard.
But this process is much more complicated and requires some experience in soldering
and it is best not to lose the original broken display.
What I really liked about this programmer; that you can remove the panel with connectors.
This is a great option for many reasons: 1) If you often connect displays, the connectors
wear out and in that case you just change the board to a new one.
2) It is possible to upgrade the board with connectors for the new iPhone models.
As you noticed on this board there is no connector for iPhone 11 which means you can buy a new
board and expand the functionality of this programmer.
In the description under the video, I left a link where to buy this programmer.
So, I hope this video was useful for you, and I helped restore True Tone on your iPhone.
See you soon on HowFixit