Vladimir

Yeah, this is long term intermittent issue some people having with faster USB transfers. Sometimes swapping cable or upgrading kernel helps. I used to have it with some kernels, but...

Could you please provide ```aft-mtp-cli -v``` output?

0xe00002c5 is kIOReturnExclusiveAccess, do you have any other mtp application installed? What version of MacOSX do you have? Are you able to build macOSX build yourself?

thanks to @d1vanov, we have daily builds for MacOSX now! Could you please try the latest master and see if it's still an issue. Then, I'll add more debug in...

added more debug in 23a9812294107f424677bacdda99d8e8383735b8

`0xe00002c5` is exclusive access error, it's definitely some other process keeping interface open. Try passing `-C` to mtp-aft-cli and see how it goes.

Sorry for the late update, but some time ago I've refreshed macosx build stuff and generated plist for the newer versions. Could you recheck please?

can you run aft-mtp-mount with -d option? Input/Ouput error means exception happened, it would be very handy to know what exactly. Do you use the latest version from git?

I used cyanogen for years (I use my old GS3 for testing, it runs CM android M), haven't seen errors like this.

I removed some old crap in 5c4eb5ab4ff220162cc2726c0da687a86a210e64 please try with the latest master