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Part Serialisation
The effects of no third-party repair are starting to show. Large organisations are implementing serialisation to encourage users not to access repair services at a competitive price.
Examples of Part Serialisation
"Unknown Part" Message
Ever since the iPhone 5s released in 2013, Apple began serialisation on their parts by pairing components to the main logic board. These parts currently include displays, batteries, cameras, Face and touch ID modules.
Affected parts include:
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Touch ID: 5S, 6/6+, 6S/6S+, 7/7+, 8/8+ and SE series.
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Face ID: X, XS, 11, 12, 13, 14 and 15 series
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Screen/Display: 11, 12, 13, 14 and 15 series.
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Battery: XS, XS Max, XR, 11, 12, 13, 14 and 15 series, SE 2nd and 3rd gen.
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Rear camera: 12, 13, 14 and 15 series.
"Fingerprint sensor calibration needed" Message
Samsung introduced a security software update where from July 2020, restricted fingerprint scanner functionality when the original fingerprint scanner was transferred over to a new screen.
Affected models:
- Samsung A50 and A70 series
As a result, calibration software is required and is only accessible by authorised repair channels or Samsung themselves who can properly calibrate the sensor to get it working properly again.
Disc Drive printed circuit board (PCB)
PlayStation 3 consoles and later have serialised part circuit boards (PCB) which communicate with the motherboard. Without the correct board the disc drive is unrecognised and will not work, regardless of it being a new or used part.
The solution for this issue is by transferring the original board over to the new drive, or through soldering. However for most technicians, soldering may not be an option.
This means that the device will recognise a replacement part, and register it as an "Unknown Part" in service history or display "Unable to activate Touch ID" on older model iPhones. The only solution is to use Apple authorised calibration software which is currently inaccessible to third-party repairers.
For a detailed breakdown on how Apple and other large organisations are restricting third-party repair, please visit this fantastic video made by Hugh Jeffrey's on YouTube by clicking the link here.