Is there any difference between the two Thunderbolt interfaces of the 2019 27 'iMac?
by Poster
Oct 2, 2019
6
Test Equipment:
A) A Xiaomi mobile phone,
b) A portable display with a type-c interface (a, b using the same data cable)
c) A Transcend mobile SSD hard drive (using type-c to micro usb data cable)
Testing two interfaces:
1. Use the Thunderbolt interface close to the Ethernet interface:
. 1) Xiaomi mobile phones can only charge and cannot transmit data.
. 2) The external portable monitor cannot light up,
. 3) The SSD can light up, but cannot be recognized
2. Use the Thunderbolt interface away from the Ethernet interface:
. 1) Xiaomi mobile phones can charge and transmit data,
. 2) The external portable display correctly recognizes 4k @ Anonymous184,
. 3) SSD can be used.
Are these two ports the same, or is one of the ports of my machine broken?
The official documentation https://support.apple.com/zh-cn/HT204392 # 2017 didn't see the difference
Replies
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Anonymous11292 Oct 2, 2019You're probably broken
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Anonymous3706 Oct 2, 2019Broken
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Anonymous371 Oct 2, 2019It must be broken
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Anonymous11069 Oct 2, 2019I don't think it seems normal, so I recommend checking.
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Anonymous11507 Oct 7, 2019It feels broken
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Poster Oct 28, 2019@ Anonymous11292 @ Anonymous3706 @ Anonymous371 @ Anonymous11069 @ Anonymous11507 Thank you for the reminder. I took it to Genius Bar for repair. I just picked up the phone from Xidan Joy City and replaced the motherboard. The problem disappeared The two mouths should be exactly the same. Parts & Services Item No. Description Price Amount Payable Customer KBB S1490LL/A Hardware Repair Labor RMB 299 RMB 0 UV661-12469 Logic Board, 3.7 GHz, i5, 580X, ROW, UVS Alternate Serial Number: RMB 4,106 RMB 0 N VAT RMB 0 Total RMB 4,405 RMB 0