Xperia zl connecting/disconnecting from computer by itself

[JimFear]

Today i used the sony update service program because i had other issue with my phone and now i've got some problem with my usb. When i connect my cellphone on my computer on the usb it keep connecting/disconnecting by itself. I tried with a new usb wire and on my other computer and i've got the same issue.

 i tried a factory reset and i tried to connect the phone when im in safe mode but it doesnt change anything. It keep disconnecting and reconnecting by itself.

Is there any way to fix this problem?

[sony2020]

Hi, did anyone find the problem or workaround for this? I experience the same thing, with a Z5 dual, it's almost impossible to use it with a PC. Some programs like Android File Transfer work better or at least for somewhat longer time to keep the connection, but otherwise it is reconnecting every second, cannot even change to transfer mode. It looks Windows works better as well, I have mostly this issue on Linux, latest kernel etc.