I use MAC
I tried to update MCU ,as it had not been updated for half an hour I pulled out device
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2Ftmy1tU5.png&t=663&c=27GiGBEaVsWtQA)
Now it is always automatic in bootloader mode whenever I turn it on usb,he does not ask me for a pin and I have no other options,i see "bootloader" from start always,update starts and update screen is same for hours and hours without any success.
I have 2 devices and both have this problem.