Black screen with a blue line and words underneath saying "factory mode" in yellow: after updating to 1.6 phone stuck while installation restart

The shell tells you that it can’t find the program adb. You have to go to the directory, where you installed the SDK.

I will change my post above because you have to do step 6 before you can execute adb devices.

I’m not sure I get what I’m doing wrong. I did drag& drop the folder from the upacked sdk tool I downloaded into the terminal and tried the adb devices thing afterwards:

X-Ys-MacBook:~ X$ /Users/X/Desktop/android-sdk-macosx ./adb
-bash: /Users/X/Desktop/android-sdk-macosx: is a directory
X-Ys-MacBook:~ X$ ./adb devices
-bash: ./adb: No such file or directory
X-Ys-MacBook:~ X$ ./

Type into your terminal:

cd /Users/X/Desktop/android-sdk-macosx

Then you are in the right directory and can use

 ./adb devices

X-Ys-MacBook:~ X$ /Users/X/Desktop/android-sdk-macosx
-bash: /Users/X/Desktop/android-sdk-macosx: is a directory
X-Ys-MacBook:~ X$ cd /Users/X/Desktop/android-sdk-macosx
X-Ys-MacBook:android-sdk-macosx X$ ./adb devices
-bash: ./adb: No such file or directory
X-Ys-MacBook:android-sdk-macosx X$

Thanks for patience guys…

Sorry, I don’t have a Mac, but this guide explains how to use adb: https://seo-michael.co.uk/how-to-setup-adb-on-os-x/

You have to go to the folder platform-tools. The program is in there. Unless you go to this folder, you won’t be able to execute adb. (error: No such file or directory.)