Questions tagged [usb]

Devices that use the Universal Serial Bus data interface

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MacOS Big Sur cannot use wifi adapter device

Recently, I upgrade to macOS Big Sur (11.0 Beta (20A4300b)). After upgrade, my tp-link usb wifi adapter(Archer T2U Plus model) no longer works. I had tried to reinstall the driver, and even other ...
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1answer
16 views

LG UltraFine & replacement Belkin USB-C cable gives blurry text

I have an LG UltraFine 5K screen and a 2016 15-inch MacBook Pro. The original USB-C cable that came with the screen broke. So I bought a Belkin USB-C replacement. Now all text is noticeable blurry. So ...
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1answer
16 views

Intermittent wifi Mac Mini late 2012. Use USB dongle? [closed]

My wifi acts out some days the 5Ghz stops working for some reason. Have tries the NVRAm resets, SMC etc to no avail. I do not like to use the 2.4Ghz. I am using Catalina macOS. Has anyone been ...
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1answer
36 views

Macbook Pro 16“ fried all USB-C ports after using a Samsung 43” monitor

I'm trying to understand what happened to my MBP because it's a rather weird situation. I hooked my MBP to a Samsung CJ89 43" monitor directly through USB type C. It worked for a while and then ...
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Booting iMac from External SSD & UASP support in iMac, Docking station or USB to Sata Adapter?

I have Late 2013 iMac which has 5400 RPM HDD and I find it really slow. So, I purchased a Crucial MX500 SSD. I have now cloned my HDD to SSD using superduper and then booted from it. It worked. But I ...
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1answer
33 views

External NVMe Sabrent SSD not recognised by Catalina Macbook Pro 16" over USB-C, only USB-A

I recently bought a 2TB SSD hard drive, placed it in a USB 3.1 enclosure and formatted it to Mac OS Extended (Encrypted). I began to do a straight copy from another SSD (Sata), both connected via USB-...
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Catalina can not access multiple partitioned HD over USB3 with FUSE

An external HDD has multiple partitions, NTFS, FAT32, ext3, ext4. When mounting external HDD over USB3, only the NTFS partition is visible in the apps Finder and Disk Utility. FUSE was installed on ...
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1answer
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Hidden files saved by Mac OS X into USB drive

I inserted some USB device (I don't quite know which partition type it was) into my Mac OS X Yosemite, copied one file from this device into my Mac, and saved one txt file from TextEdit into this ...
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How to change hdd read error timeout?

Sometimes the HDD encounters a bad block and freezes the system. I want to decrease the time. Is it possible with macOS High Sierra 10.13.6? Apparently it's possible on linux: https://superuser.com/...
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Why do USB connections kill my WiFi and what can I do?

I'm currently away from home and using my mid-2015 MacBook pro remotely, jumping between iPhone tethering and public (BT) wifi. Every so often my wifi drops out and can't connect (and occasionally ...
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Can not format External drive on MacBook Shows -> Error: -69877: Couldn't open device

I recently used Bootable External pen-drive with MACOS dmg. Now when i am trying to format the pen-drive it gives Error Error: -69877: Couldn't open device On Disk Utility i have tried various ...
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Create bootable windows 7 usb drive on Macosx Mojave 10.14.6

I am trying to create a bootable usb drive on Mac to re-install Win 7 iso on my pc. However, I think my pc does not recognize Exfat or other formats other than NTFS. I tried using Unetbootin but ...
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1answer
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USB became write-protected after trying to install Windows on BOOTCAMP

I tried to install windows using BootCamp, and it formatted my usb and loaded windows files and gave me an error that not enough space available, so I changed my mind and wanted to use my pen drive ...
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1answer
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Will this Mac mini setup work as I intend?

I'm thinking of switching to a Mac mini setup, this one in particular: New Apple Mac mini (3.6GHz quad-core 8th-generation Intel Core i3 processor, 8GB RAM, 256GB) — https://www.amazon.co.uk/gp/...
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MacOS bootable usb stick: This disk is locked

I want to downgrade my macbook air from Catalina to High Sierra and in the process mistakenly erased my Macintosh HD, Macintosh HD Data is still intact. Before erasing, I made a Catalina bootable ...
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Possible to connect 3 external monitors to Macbook Pro 15" (2017) via the USB-C ports? [duplicate]

I need to connect 3 external monitors to my Macbook Pro 15" (2017 version). I need the desktop to extend independently to the 3 monitors (the laptop lid will be closed, so only the external ...
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USB Hub affects WiFi only once every few weeks [duplicate]

It is documented that using certain USB C hubs. There even is an Apple support article that shows that this happens. Now that's okay—I've come to accept that some dongles just don't cut it when coming ...
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Creating a OS X El Capitan bootable installer on a MacBook Pro to reinstall a MacBook Air

Is it possible to create a bootable USB installer on a MacBook Pro and use it to install macOS on a MacBook Air? For example, I'd like to use a MacBook Pro to create a bootable USB installer for El ...
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1answer
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External monitor can't be detected anymore

I know this is a reoccurring issue and I've gone through every forum, every topic and every blog post I could find. Two days ago my MacBook Pro 13 stopped detecting external monitors. I'm using a ...
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2answers
37 views

External SATA drive not showing up when connected via USB adapter

I've got a PATA/SATA adapter which connects via USB, and if I connect PATA drives to it they show up fine, but for some reason SATA drives aren't working. If I connect the same SATA drive to my ...
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1answer
47 views

FTDI Driver 2.4.2

I just updated my computer to Mac OS 10.15.5 (Catalina) Only I can't get my Ired 2 software to work because I have to install FTDI Driver 2.4.2 (64 bits) So I installed FTDI Driver 2.4.2 but it was ...
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2answers
834 views

Can the 1m Apple USB C cable charge the 13 inch MacBook Pro at full speed?

I'm wondering if the 1m Apple USB C cable can charge the 13 inch MacBook Pro safely at full speed (i.e. 60W). From my knowledge, all certified USB C cables support 60W charging, which means it should. ...
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Prevent Mac alerts when plugging in iPhone

I have a MacBook Pro running High Sierra, and an iPhone with iOS 13. Sometimes I plug the iPhone into the MacBook's USB to charge it. Whenever I do this, I get two popup alerts. One says "A new ...
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0answers
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how can I prevent conflict of wifi and ethernet

I have a 2018 MacBook Pro—retina, no touchbar, 13", two USB-C ports. I have a USB-C 'dock' with HDMI and three USB 3 ports. I want to use hardwired Ethernet to offload the wifi, but I don't want to ...
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1answer
19 views

How to connect a flash drive to a VMware VM when the drive is 'not readable'?

Introduction I'm running: High Sierra v10.13.6 VMware Fusion v11.5.1 I'm attempting to connect a flash drive (USB 3.0) to a virtual machine (Redhat). That virtual machine is a guest to my Mac host. ...
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Talk to a remote serial device (USB FTDI) through a print server?

I have an FTDI USB device connected to an "Ethernet Printer Server" (specifically TP-Link TL-PS310U), and I can "see" the USB device as a printer: Is there a way to perform serial communication with ...
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1answer
33 views

Tricky Mac Virus

I have no idea how this happened but I have some insanely hard to find worm on my mac. I was trying to wipe an old external HHD I had to back up a Time Machine and it must have had some malware, did ...
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Switching inputs on my monitor requires me to unplug and replug my MacBook Air USB-C Cable

My monitor has 2 inputs, an HDMI input (which is plugged into my Windows machine) and a USB-C input (which is plugged into my Macboook Air). I switch between these inputs often, but everytime I switch ...
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How to resolve freezes when pressing caps lock on external keyboard

I've been trying to diagnose a problem with my Logitech K120 keyboard paired with a Macbook Pro 15" (Retina, 15-inch, Late 2013) where occasionally, pressing the caps lock would cause that keyboard to ...
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External USB Windows keyboard Ctrl key not working with MacBook

I'm using an USB Windows keyboard with my Macbook Pro 2017. When I press the Ctrl key on it, nothing happens. I verified using https://www.keyboardtester.com/. It does not detect the key at all. I ...
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1answer
16 views

App from USB always shows verifying app dialog

I have a USB drive, and I decided to transfer a few apps from my Mac to the USB that took up a lot of space. Now every time I launch an app from the USB, it always shows the verifying dialog. Is ...
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1answer
25 views

Which were the first iOS devices to charge at faster speeds when connected to a 12W USB power adapter?

I'm aware that fast charging via USB-C is a relatively new feature for iOS devices - but out of interest, I'm wondering which iOS devices were the first to support faster charging when connected to a ...
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1answer
33 views

Would an Apple Watch charge any quicker if connected to a 12W USB power adapter?

I understand that all Apple Watch models ship with a 5W USB power adapter in the box, but I'm curious as to whether the Watch would charge quicker if paired with a 12W power adapter. Is there any ...
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1answer
21 views

How does CalDigit Thunderbolt 3 Mini Dock support two displays from one USB-C port?

According to the FAQ for the CalDigit Thunderbolt 3 Mini Dock, two different monitors can be connected in extend mode through the single USB-C port. How is this possible if MST is not supported? Why ...
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1answer
2k views

Why did the USB connector for the aluminium Apple keyboard have gaps on the plug?

I used to own an Apple USB keyboard - this was the metal version that had a USB port on each end. From memory, the USB cable that connected the keyboard to a computer had several gaps in the connector ...
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2answers
32 views

How do Apple's USB Power Adapters allow for more power output than is possible in the USB 2.0 specification?

From my understanding, the USB 2.0 specification allows for a maximum power draw of 2.5w - but Apple's own USB Power Adapters allow for a maximum of 12w using a USB to Lightning cable. How is this ...
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1answer
58 views

External keyboard stops working after some time on MBP 2020 (Catalina 10.15.5)

The problem is as follows. I attach an external keyboard to my MacBook Pro 13 inch 2020 running Catalina 10.15.5 using an Apple dongle. After a while, (this could be 10 minutes or an hour or so) ...
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1answer
50 views

Is it normal the USB flash drive or microSDXC drive plugged into a Macbook Pro is very hot?

I have a 2014 Macbook Pro, and sometimes I plug in a USB Flash drive (the tiny ones) or microSDXC flash drive (microSDXC together with a USB adapter). But even if I don't use the drive at all, just ...
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1answer
37 views

Macbook Pro 17" mid 2010 + NEC upd720202 Express Card USB 3.0

I have a MacBookPro6,1 running well and stable on MacOS 10.9.5, I use it for video image editing, so I have a lot of data on external drives. Recently found out that I can speed up all transferings ...
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0answers
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(MacBook Late 2009) Bootcamp/Win 7: No device drivers were found

Recently I've been trying to install Windows 7 on my MacBook (Late 2009, macOS El Capitan, 10.11) using BootCamp. However, when I'm about to install windows 7 it shows an error: "No device drivers ...
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2answers
234 views

Would a powered USB hub solve the problem of two external disks randomly losing connection or being slow?

I have an older MacBook (circa 2012) and I have two external drives. I want to merge the content of the two drives but Finder is having fits with it. It will lose the connection to the drives at ...
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1answer
37 views

How to stop Disk Utility?

I'm assuming this USB stick is toast & I'm not going to be doing anything in future with it except for one last short flight into the bin. The stick gives the "This device is unreadable. ...
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1answer
62 views

How to reformat hdd only viewable under (About Mac) -> (System Report) -> (USB 3.0 Bus)?

After changing to a new external USB hdd for Time Machine my previous external USB drive used for Time Machine (almost) disappeared. My old drive is a Western Digital, My Passport 25E3 for Mac (1-tb). ...
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1answer
17 views

USB Devices not working on Catalina after water spilled over keyboard

The other day I spilled water on my MBP 2017 keyboard. I let it dry for 48 hours before turning it on again. And it ran fine. Ever since that spill, however, I have not been able to use my USB wired ...
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2answers
30 views

Can you use a USB Wireless mouse with an iPad through the lightning to USB adapter?

just wondering, on my iPad Pro 9.7 running iPadOS 13.5, could I connect a usb wireless mouse using the lightning to USB adapter? And will the mouse provide the same functionality as a bluetooth mouse ...
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0answers
31 views

iOS & macOS / USB Soundcard: Enabling SPDIF out

I have an external USB sound device (C-Media CM6631A) connected to either a) my iPhone (iOS 13.5) via a third Party Lightning-to-USB adapter; b) my MacBook Pro via USB C to mini USB A cable or c) ...
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1answer
56 views

Force bluetooth usb adapter Mac Catalina

I'm having trouble forcing my mac to stay connected to my external USB Bluetooth adapter on reboot/restart. I've read quite a few posts and have found this command sudo nvram ...
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1answer
81 views

Will a Mac boot with Clonezilla?

The goal is to upgrade a Mac's hard drive to an SSD. Is it possible to boot Clonezilla from a USB stick on a Mac (iMac 2007/Mac 7,1) to clone a mechanical HDD to a SDD? I do not have access to the ...
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1answer
40 views

MBP Mini-DisplayPort to USB-C Monitor

I have an "old" MacBook Pro (MBP) that has a Mini-DisplayPort connector. I have a newer MBP with 4 USB-C connectors that I use with an LG UltraFine 5K Monitor (aka. LG 27MD5KA-B). I wanted to know ...
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1answer
27 views

Create bootable macOS USB for a non Apple computer [closed]

I tried several ways to create a bootable macOS USB for a non Apple personal computer. I expected it to work exactly like my bootable Ubuntu USB. macOS bootable USB seems to be working differently. It ...

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