Why Xiaomi TV is turned on for a long time: a full analysis of the causes and solutions

You hit the power button, but the Xiaomi Mi TV or Redmi Smart TV is on for longer than a minute, hangs on the logo or even requires several attempts? This problem occurs in models from Mi TV 4A to flagship Mi TV Q2 - and the causes can be due to both software failures and hardware malfunctions. In 80% of cases, slow turn on is due to overloaded memory, outdated firmware or incorrect power saving settings, but sometimes physical components - for example, power capacitors or flash memory - are to blame.

In this article, we will analyze all possible causes - from trivial (for example, fast turn on in settings) to critical (motherboard failure). You will learn how to diagnose a problem without disassembling the TV, what firmware manipulations can help, and when to contact the service center. TV P1, Mi TV A Pro and Redmi Smart TV X – their owners are most often faced with power delays due to the specifics of the Amlogic processor.

Before you start repairing, check if the problem always shows up (even after a complete disconnect from the network) or only when you turn on again (for example, after going to sleep mode)? USB-drive up to 8 GB – it will be needed for resetting or flashing.

1.Fast Boot is the main reason for delays

The most common reason for Xiaomi TVs to be turned on for a long time is the activated Fast Boot feature (in Russian firmware it can be called “Quick Start” or “Stop Mode”). In theory, it should speed up the turn on, but in practice it often leads to the opposite effect: the TV hangs for 30-60 seconds on the black screen or Mi logo before showing the interface.

The fact is that Fast Boot does not turn off the TV completely, but puts it into deep sleep mode, while some processes (for example, updating widgets or background synchronization of the Mi Account account) continue to work, which causes delays, especially on models with low-power processors (Mi TV 4S 32, Redmi Smart TV 40).

• 🔧 How to disable Fast Boot: Go to Settings → The device → Power mode. Select Quick Start and move the slider to Off. Confirm action and restart the TV (remove the plug from the socket for 10 seconds).

⚡ The effects of the shutdown: the TV will be turned on longer at the first start (about 20-30 seconds), but further switching will become more stable.

Mi TV Q1E

⚠️ Attention: On some firmware (MIUI TV 3.0 and older) disabling Fast Boot can reset settings HDMI-CEC. After manipulation, check the work of the console or soundbar.

2. Overloaded memory and cache: how to clean without resetting

Xiaomi Android TVs suffer from the same problem as smartphones: over time, app cache and system log files clog up memory, which causes the system to slow down when booting. This is especially critical for models with 8-16 GB of internal memory (Mi TV 4A 43, Redmi Smart TV 50).

To make matters worse, Xiaomi defaults to hide cleaning tools, such as the standard Storage section on the menu, like on smartphones, and you have to use workarounds:

Remove unnecessary applications through Settings →

Clear the cache for each application manually (Clear the cache button)

Disable AutoRun for unnecessary services (e.g. Mi Home or Xiaomi Cloud)

Delete temporary files via Settings → Device → Memory → Clear (if the item is available)

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For deep cleaning without discharge:

1. Install SD Maid via Google Play (if available) or ADB (you need to enable USB debugging in the developer settings).
2. Run scans for residual files (corpses) and duplicates.
3. Delete files with the.log,.tmp and.bak extensions in /data/local/tmp and /cache folders.

3.Outdated firmware: how to update without the risk of "bricking"

Delays in turn on often occur after automatic updates that Xiaomi releases with errors. For example, in the firmware MIUI TV 3.2.1 for the Mi TV P1 was a bug with the initialization of eMMC memory, which caused the TVs to turn on for 2-3 minutes.

Check the current version of the firmware in Settings → On TV. → Version. MIUI TV. If it is older than the table below, an update is required, but beware: an incorrect update may result in a loss of warranty or breakdown (especially on models with a high-quality product). MTK-processors, for example, Redmi Smart TV 32").

• 🔄 Refreshment methods: 🌐 By air (OTA): Settings → On TV. → System upgrade: the safest method, but requires stable internet (speeds at least below). 10 Mbit/s). 💾 Through USB: Download the firmware from the official Xiaomi website, unpack ZIP-archive in the root of the flash drive (file name must be update.zip) and update through Settings → Update → Update through USB. 🖥️ Through ADB: For power users.Teams: adb reboot recovery fastboot flash recovery recovery.img fastboot reboot
• ⚠️ What NOT to do: Do not interrupt the update process (even if the TV is stuck at 10).+ Do not use firmware from third-party sites (risk of viruses or incompatibility). Do not update via Mi Home - this method often leads to crashes.

⚠️ Attention: On Mi models TV 4S Redmi Smart TV processor-based T962 renewal USB This can cause an E:footer is wrong error, which requires firmware through the USB Burning Tool (instruction below).

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If after the update the TV stopped turning on completely (black screen, no indication), try to reset it with the Reset button on the back panel (clamp for 15 seconds).

4. Hardware malfunctions: when a workshop is needed

If the software methods didn't work, the problem could be the hardware, and it's mostly the fault of:

1. Power supply: Bloated capacitors or faulty transistors lead to unstable voltage. Symptoms: the TV turns on only 3-5 attempts, the image flickers, high-frequency squeaking is heard.
2. Flash memory (eMMC): Memory cell wear (especially on 2018-2020 models) causes delays in reading system files. Diagnosed via ADB by the command: adb shell cat /proc/mtd If the output contains lines with bad blocks, the memory needs to be replaced.
3. Motherboard: Overheating or oxidation of the contacts of the chips (for example, NAND-The chips cause initialization failures, often accompanied by artifacts on the screen.

For self-diagnosis:

• 🔍 Check the power supply: turn off the TV, remove the back cover and inspect the capacitors. Bloated or leaking electrolyte is a sign of malfunction.
• 🌡️ Measure the temperature of the processor radiator after 10 minutes of operation.°C - Replacement of the thermal paste is required.
• 🔌 Check the power cable and socket: connect the TV to another power source (for example, via UPS).

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If the TV turns on after only a few presses of the power button, but then it works steadily - the problem is most likely the on button on the case. Try to clean its contacts with alcohol or replace the remote (on some models the button on the remote duplicates the physical).

5. Conflicts with connected devices

Xiaomi TVs can slow down when turned on due to problems with external devices connected via HDMI, USB or Bluetooth.

• 🎮 Game consoles (PS5, Xbox: Protocol conflict HDMI-CEC or HDCP It can block the initialization of the port.
• 💽 USB-Drives: If the flash drive has a corrupted file system (RAW instead FAT32), The TV will try to mount it, which will take up to 1-2 minutes.
• 🔊 Soundbars or receivers: Protocol incompatibility ARC/eARC This causes delay in sound and video.

How to diagnose:

1. Disconnect all devices from the TV (including HDMI, USB, antenna cable).
2. Turn on the TV and check the download speed.
3. Connect the devices one by one, observing the behavior, and if you have a delay after you connect a particular device, that's the reason.

Decisions:

• For HDMI devices: Turn off HDMI-CEC in the settings of the TV (Settings → HDMI → HDMI Management).
• For USB-← Switching to the Fast Driver: FAT32 cluster size 32 KB.
• For soundbars: Update the firmware of the audio device or use optical cables instead of HDMI.

6.Reset to factory settings: Last chance before service

If none of the methods worked, it would leave a hard reset, which would delete all the data, including the apps and settings installed, but would return the TV to a clean state. Xiaomi models have two ways of resetting:

• 🔄 Through the menu: Go to Settings → The device → Reset. Select "Reset all settings" and confirm the action. Wait for the reset (may take up to 10 minutes).
• 🔧 Through the Reset button: On the back of the TV, find a small Reset button (usually next to the back of the TV). HDMI-Take a paper clip or a toothpick, press and hold the button for 10-15 seconds, the TV will reboot and start the reset process (the screen may flash).

After discharge:

• ✅ Set up your TV as new (connect to Wi-Fi, sign in to Mi Account).
• ❌ Do not restore data from backup – this can return the problem.
• 🔄 Update your firmware to the latest version through Settings → Updating the system.

⚠️ Attention: On Mi models TV Q1E A new reset via the Reset button can block the bootloader if the TV was linked to the Mi Account account, in which case you will need to unlock through the Mi Unlock Tool (instructions on the official website).

7. When to contact the service center

If after all the manipulations, the TV still turns on for more than 30 seconds or requires several attempts, the problem is likely hardware.

• 🔋 The TV is turned on only after a complete disconnection from the network at 5+ minutes (symptom of a power supply failure).
• 🔥 On the back panel, you can smell the burn or see traces of melting.
• 🖥️ Artifacts (strips, flickers, color distortions) appear on the screen even in the settings menu.
• 🔄 The TV is cyclically restarted at the loading stage (infinite reboot).