`adb reboot -p` usually reboots instead of power-down which it is supposed to

Question

When writing:

adb reboot -p

I expect the unit to power down indefinitely. Instead, it just reboots automatically, the same as having written:

adb reboot

only.

Why is that? What should I write?

shell only means it opens a shell first and writes the same there. — JohnyTex, Commented Dec 27, 2016 at 13:02
@JohnyTex Nein, it's not the same. adb reboot -p means execute adb with arguments reboot and -p. adb shell reboot -p means execute a shell on the device, then execute the program reboot with argument -p which resides inside the device. This is the difference. — Grimoire, Commented Dec 27, 2016 at 16:23
Yes, what I meant (sloppily) was that the result is the same, right? — JohnyTex, Commented Dec 27, 2016 at 17:08

Timo Schwarzer · Accepted Answer · 2017-02-08 19:05:46Z

2

Many phones start booting when a power cable is attached. This could be the reason here for the phone rebooting instantly instead of staying off.

answered Feb 8, 2017 at 19:05

Timo Schwarzer

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Do know what could be done about that?
– JohnyTex
Commented Feb 9, 2017 at 8:25
@JohnyTex you would have to disconnect your phone just after issuing the command
– Timo Schwarzer
Commented Feb 9, 2017 at 8:37

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Murometz80 · Accepted Answer · 2023-08-08 14:25:22Z

1

This should work

adb shell reboot -p

answered Aug 8, 2023 at 14:25

Murometz80

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1

Welcome to the Q&A site Android Enthusiasts Stack Exchange. While this is a valid answer, could you edit and expand on the reason why it works? Otherwise, it's okay.
– Andrew T. ♦
Commented Aug 8, 2023 at 17:23

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2 Answers 2