How to set a timer to turn off the phone Xiaomi Redmi 9C: all ways

Why you need a smartphone shutdown timer and how it works on the Redmi 9C

Automatically turning off your smartphone by timer is a feature that saves battery power, protects against overheating during charging at night and helps to keep you awake. On the Xiaomi Redmi 9C with MIUI 12-14 firmware, this option is implemented in an unobvious way: it is not in standard settings, like on the flagship models of the brand. However, you can get around the restriction by three methods – through hidden system tools, third-party applications or voice commands.

In this article, we’ll take each method into account the features of the Redmi 9C, from turning on the built-in scheduler (not available in all regions) to setting up through Google Assistant or specialized utilities like MacroDroid.

Method 1: Built-in shutdown scheduler in MIUI (hidden function)

MIUI 12.5+ firmware for Redmi 9C has a hidden scheduling tool that allows you to set the time of automatic shutdown, and its activation depends on the version of the software and the firmware region – in European builds, the option is often absent.

1. Open the settings → Additional → Planner.
2. If there is no item, try the Settings path → Battery and Performance → Planner.
3. In some versions of MIUI, the option is hidden in Settings → Special Opportunities → Convenience → Task Planner.

If the planner is found, further action:

Turn on the "Task Planner" switch |

Select "Switch off device" |

Set a time (e.g. 23:30)|

Activate repetition (daily/once) |

Save the settings with the "Ready" button-->

Important: on the Redmi 9C with Russian/Europe (EEA) firmware, this method only works when connected to a charger. If the phone is not charging, the timer is ignored by the system.

Method 2: Timer to turn off using MacroDroid

If you don't have a built-in scheduler, use third-party utilities. MacroDroid is a free action automation app that reliably turns off Redmi 9C on schedule.

• 🔹 It works on any version. MIUI (including MIUI 14).
• 🔹 Allows you to set conditions (for example, turn off only when connected to a charging station).
• 🔹 No need for root rights.
• 🔹 Supports flexible schedules (daily, day-by-day).

Step-by-step:

1. Install MacroDroid from Google Play.
2. Launch the application and click Add macro.
3. In the Triggers section, select Time/Date → Set Time and set the right hour.
4. In the Actions section, add Power Management → Turn off the device.
5. Save the macro and activate it.

On Redmi 9C with MIUI 12.5+, MacroDroid requires permission to use special features. To provide it, go to Settings → Special Features → MacroDroid and turn on the switch.

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If the timer doesn’t work, check if MIUI kills the MacroDroid background process. To do this, in the battery settings (Settings → Battery → Battery Optimization), find the application and select “No Limits”.

Method 3: Voice Assistant (Google Assistant or Alice)

The easiest, but least reliable way to do this is to use voice commands, which are suitable for a single shutdown (for example, if you forgot to set your timer in advance), and the Redmi 9C has two options:

Option 1: Google Assistant

Activate the assistant with a long press on the Home button or a voice command “OK, Google,” then say:

Turn off the phone in 30 minutes.

The system will confirm the action and show a notification of the time of shutdown.

• 🔸 It only works when you are actively connected to the Internet.
• 🔸 Maximum delay - 1 hour.
• 🔸 On some versions MIUI screen unlocking is required.

Option 2: Alice from Yandex

If the phone has Yandex application with Alice installed, use the command:

Alice, turn off the phone in 45 minutes.

Important: Alice may refuse to do the command, citing security restrictions, in which case try the alternative phrase: "Remind me to turn off my phone in an hour."

Built-in planner MIUI|

MacroDroid or analogues |

Voice assistant |

Manual shutdown-->

Table of comparison of ways to turn off Redmi 9C

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For regular shutdowns (for example, every evening) MacroDroid or built-in scheduler is optimal. For one-time cases, a voice assistant will do, but consider the limit of 1 hour.

What to do if the timer does not work

If the phone does not turn off at the appointed time, the reasons may be as follows:

⚠️ Attention: On Redmi 9C s MIUI 12.0.x and below, the built-in scheduler often ignores commands due to an error in the com.android.alarmmanager service.The solution is to update the firmware to MIUI 12.5+ or use MacroDroid.

• 🔋 Battery charge below 15%: MIUI It blocks the timer shutdown if the charge is critically low.
• 🔄 Optimization conflict: Add the app responsible for the timer (e.g. MacroDroid) to battery exclusions (Settings) → Battery → Optimizing the battery).
• 🛠️ System failure: Restart your phone and check if your time/date settings are broken.
• 📵 Do Not Disturb: In some versions MIUI It blocks background tasks. Turn it off in Settings. → Sound and vibration → Don't disturb.

If the problem repeats, try an alternative method. For example, instead of using the built-in scheduler, use MacroDroid, and instead of voice commands, manually shut down via Settings → About Phone → Shutdown.

Security: Can you set a shutdown timer permanently?

Regular automatic switching off the phone does not harm the device, but there are nuances:

• 🔋 Battery: Frequent on/off cycles (more than 1 time per day) can accelerate battery wear. Optimal - turn off the phone 1 time in 2-3 days.
• 📱 Background tasks: When you turn off, downloads, updates, and sync are interrupted (for example, Google Photos or Mi Cloud).
• ⚡ Fast charging: On the Redmi 9C Quick Charge 3.0 enabled shutting down while charging does not affect speed, but may interrupt battery optimization (if option is enabled in settings).

⚠️ Note: Do not use a shutdown timer if your phone is running critical processes such as firmware updates, backups, or large file transfers.

For minimal battery wear, it is recommended to:

1. Turn off your phone at night if the charge is above 80% (to avoid recharging).
2. Do not use the timer more than 1 time per day.
3. Before turning off, close resource-intensive applications (games, video editors).

FAQ: Frequent questions about the shutdown timer on the Redmi 9C