Sep 12, 8: Hi again , thanks for the links above, not sure what is going on but now, even on the command line I don't see it attached at all. The flash drive does work and I have copied files onto from the PC and still not recognized at all but there is a LED indicator to let me know that it is there and on. When I reattach the USB hub and another thumb drive both are detected and can be read. The USB ports work for other items, and the drive is not seen by the system at all.
I've restarted the pro and still it does get recognized, My concern is, it works everywhere else, what if I reformatted the unit to Apple HFS or redid it in FAT32 would it kill the disk and whatever program is on it to control the lightening connector.
I'll keep looking around the chatrooms and other places for some other takes on this but if you know an engineer or programmer that likes a challenge I've got lots. Thanks again for any suggestions.
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Mac USB Ports Stopped Working? It’s Likely Easy to Fix
Disk Utility — Force Mount Disk. Communities Contact Support. Sign in. Now, some responses were, that one should throw the logic board in the trash, bad idea. Easy solution, replace all the filters for each port or just the ones on the data line. USB ports fixed. Yes this is quite technical and maybe only suited for an electronics engineer, but I am not and I can do it. These kind of repairs are easier than one would think, there is still hope.
Can you make a video on this? Or at least a very detailed photo-document? Thank you so much! I have a razer driver that was not working but now works, and my drawing tablet works now!!! Luv u! This worked like a charm for me, thanks.
Thanks so much!! I thought I was going to have to pay apple to fix it since I didnt have apple care! Thanks so much. Wow—this totally worked!! Your advice saved the day. Both ports stopped working and I needed to use them for a deadline project. So I had the same problem with USB ports not working on a macbook pro. I tried restarting the computer, updating software None of that worked. The screen flashed white and gave the start up sound then went back to black four times before I let it go, then I started the computer and logged back in as normal to find the USB ports working.
Or just, you know, call apple. Fixed my problem in about five minutes. Renae, this is very helpful information, thanks for reporting exactly what worked for you to fix your MacBook Pro USB ports when they were not working! Thank you SO much! Thank you!
Resetting SMC worked for me. I panicked for about two hours after my USB port stopped reading my devices. The light did change color on the power adapter. Is there any reason as to why that would be? Is it possible it still reset? I have a problem regarding with my mouse Razer Krait edition. I have already installed razer synapse in order for this thing to function properly but still it will not suddenly work few minutes after i plugged the device in the right usb port of my macbook.
I tried to switch it on the other side but still the problem is the same. How can i manage this problem? Will you please guide me? Same thing for my card reader if I use that instead of connecting the camera.
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This worked for me as well — yeesh I wish I had looked this up sooner, been living with only one port for a while now. Thanks Alot Mac, Tested continity of the filters and they came back OK but obviously the resisitance had changed. Also There was 5v going to the USB and the data lines went from 0. Im having problem with my macbook pro 13 inch early The problem im facing is that both of my usb port gives out power, for e.
Is that overprice and should i attempt on repairing it myself by getting the the replacement of the ports on ebay or amazon? Thanks guys! Took a couple of restarts before I got it right but it worked. This worked like a charm guys! Worked on my Mac Pro Then when releasing buttons, it changed to green briefly then back to orange because it was not fully charged. Thought I did it wrong first time so repeated the process; same observation. My mouse is a cheap Logitech. And I was sure the USB port was not working by testing w the printer input cable between my two ports.
None of these resets worked. Any ideas? What sort of Apple-paid hack are you? Admit it. Actually USB usually does work. Usually means under normal conditions. So, under normal conditions, USB would work fine. But under abnormal conditions, USB may not work or stop working on a Mac, or any other computer. Brilliant thank you. I thought it was broken and bought a cheap new one which wrecked everything.
Worked like on a charm on my Macbook Pro!
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My USB ports had stopped working. Took just a few minutes and I am back in business. Still only one of them working on my early MacBook Pro. I tried the PRAM reset, too. Anyone else have this issue? Late MacBook Pro 5,1. Im really frustrated, could this be a logic board issue? I get that a SMC reset should heal this. Thanks a bunch! Name required. Mail will not be published required.
All Rights Reserved. Reproduction without explicit permission is prohibited. Enter your email address below: Posted by: MacMania says: August 9, at 4: December 27, at 9: Colorado dude w a hackintosh says: February 4, at March 21, at 6: June 6, at Maddy G says: September 11, at 3: Wharf Xanadu says: August 9, at 5: Unreal says: Also, some of the above solutions Fix 3 and Fix 4 may also cause file loss when you apply to fix this error without awareness.
For example, USB drive becomes inaccessible or files disappear. If you are having file loss issue on the USB flash drive, follow Part 2 and you'll find a perfect data recovery resolution on USB flash drive. If Mac computer can read the USB drive but is unable to open the drive or the device got formatted, the data is still recoverable.
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