Mac mini 2018 Bluetooth - repairable?

[sauria]

It's one from startech like you see here https://www.amazon.co.uk/gp/product/B07FB94VJY/

Many thanks!

 

[ashleykaryl]

Sorry I missed the bit about the mouse. I actually have two. A Tecknet MD12 and a Jelly Comb MV009. No problems with either one.

 

[sauria]

Sorry I missed the bit about the mouse. I actually have two. A Tecknet MD12 and a Jelly Comb MV009. No problems with either one.

Great, thank you.

 

[MacCheetah3]

I did have a temporary, though indeed frustrating, random week of problems with my Apple Trackpad 2 -- Apple Wireless Keyboard was fine. It came and it went without me understanding why.

From what I've read on various sites, the primary interference is poorly or non-shielded USB (A) 3.0 cables and chipsets. Not USB 3.1 or 3.2 and not those with USB-C connectors.

Lastly, with the screenshots everyone has posted, I looked at my BT specs and noticed something that could be useful in troubleshooting: RSSI, a rating similar to RSRP/RSRQ

Understanding RSSI Levels | MetaGeek

RSSI stands for Received Signal Strength Indicator, and measures how well a client device can hear (receive) a signal. Learn how to understand the index and how it’s used in measuring the strength of your Wi-Fi signal.

www.metageek.com

And the AFH Map

How to interpret 'hcitool afh' (AFH map)

Sometimes, I have problems when I use Wlan and Bluetooth concurrently. I wanted to check if they use the same frequencies and found out that I can check the current AFH-map with hcitool afh. The r...

askubuntu.com

Adaptive Frequency Hopping (AFH)​

Bluetooth devices transmit on 79 different channels, spaced 1 MHz apart between 2,402 MHz and 2,480 MHz. During data transfer, the sender changes the used channel very quickly in a pseudo-random order ("hopping sequence") to reduce the chance of interference caused by other radio services using the same frequency range. The receiver knows the sequence and "hops" the channels synchronously with the sender.

The basic principle of AFH is simple: Channels with known interference are simply left out of the hopping sequence. The AFH map simply tells both communication devices which of the 79 channels are good to use and which to leave out. The AFH map consists of 80 bits (20 hex digits) corresponding to the 79 channels (and 1 reserved bit).

Channels usable for Bluetooth have the corresponding bit in the AFH map set. That is, the more "1" bits you see, the less interference is there and consequently the more throughput your Bluetooth link will have.

 

[sauria]

I did have a temporary, though indeed frustrating, random week of problems with my Apple Trackpad 2 -- Apple Wireless Keyboard was fine. It came and it went without me understanding why.

From what I've read on various sites, the primary interference is poorly or non-shielded USB (A) 3.0 cables and chipsets. Not USB 3.1 or 3.2 and not those with USB-C connectors.

Lastly, with the screenshots everyone has posted, I looked at my BT specs and noticed something that could be useful in troubleshooting: RSSI, a rating similar to RSRP/RSRQ

Understanding RSSI Levels | MetaGeek

RSSI stands for Received Signal Strength Indicator, and measures how well a client device can hear (receive) a signal. Learn how to understand the index and how it’s used in measuring the strength of your Wi-Fi signal.

www.metageek.com

And the AFH Map

How to interpret 'hcitool afh' (AFH map)

Sometimes, I have problems when I use Wlan and Bluetooth concurrently. I wanted to check if they use the same frequencies and found out that I can check the current AFH-map with hcitool afh. The r...

askubuntu.com

View attachment 1717793

Thank you. I have moved a Samsung drive to a hub away from the mini. So far the mouse is working better.