If, like me, you've installed MagiskSSH and
Magisk-Tailscald on your Android device, you might want to enable adb
from commandline (ssh) so that you can scrcpy into it.
setprop service.adb.tcp.port 8897 # Specify your desired port here
setprop ctl.restart adbdsetprop service.adb.tcp.port -1
setprop ctl.restart adbdActually I once borrowed my phone to my girlfriend cuz her phone's battery died (she always forgets to charge it :( ) so I created an account for her, which isn't an administrator. According to Android policy, switching to another user requires the current user's password. She switched from her account to mine and told me that she couldn't use the phone anymore.
I had to gave her my password. Though I changed my password afterwards, I think this should be avoided in the future. Therefore, I installed MagiskSSH and Magisk-Tailscald on my phone, hoping that I could switch user from remote.
Actually I can!
# First, list user and obtain user ID
pm list users
# Then, switch to the desired account
am switch-user User_IDWhen running pm list users, you may see output like this:
Users:
UserInfo{0:机主:4c13} running
UserInfo{10:工作资料:10b0}
Here, 0 and 10 are user IDs. I'm not sure what's 4c13 and 10b0.
This is from here. The answer is really old but I verified that it still works on Android 14. You won't need the current user's password, and you'll be on the lock screen of the target user.
For the wireless adb commands, it sometimes may fail, for some unknown reasons... Maybe I just didn't sleep long enough.
Fuck GitHub, I had to add numbers to my filenames to re-order the files 😡