How to set up Xiaomi Mi 4C: detailed instruction from A to Z

Introduction: What you need to know about Xiaomi Mi 4C pre-set

Xiaomi Mi 4C — The iconic 2015 smartphone that is still popular today for its balanced features and custom firmware installation, but its customization has a number of nuances associated with the outdated version. MIUI This article will help you understand all the stages from the first on-board to the fine optimization of the system.

It is important to note that Mi 4C It comes in several versions (such as the Snapdragon 808 or Snapdragon 801), which affects firmware compatibility, and has a locked bootloader by default, which limits customization capabilities without first unlocking. If you purchased a used device, it is likely that it has already installed an informal firmware - this will require additional steps to return to the stock version.

Before you start setting up, prepare:

✅ Charger (original adapter on the device) 5V/2A compatible)

✅ Cable USB Type-C (included or certified)

✅ MicroSD card (if you plan to expand your memory)

✅ Computer with drivers installed ADB/Fastboot (loader-free)

First Enablement and Basic Configuration of MIUI

At the first launch of Xiaomi Mi 4C You'll have to go through the standard initialization procedure, and the device will ask you to select a language, connect to a Wi-Fi network, and log into your Mi Account. If you purchased a used smartphone, we recommend resetting to factory settings before logging in - this will save you from other people's data and possible errors.

To reset the settings:

1. Turn off your smartphone.
2. Press the Power + Volume button up until the Mi logo appears.
3. From the Recovery menu, select Wipe Data → Wipe All Data.
4. Confirm the action and wait for the process to be completed.

After resetting, the device will automatically restart and offer to undergo the initial setup.

When you select a region, you can choose Russia or India (if you want global Google services), you don't need to link to your Mi Account, but without it, you won't be able to use branded services like Find Device or cloud backup. If you plan to install custom firmware, you can skip your account.

Select the interface language

Connect to Wi-Fi

Create or skip a Mi Account

Set up your fingerprint (if required)

Update the system to the latest version MIUI-->

Unlocking the bootloader: why it is necessary

Xiaomi Mi 4C It has a locked bootloader by default, which limits the installation of unofficial firmware and modifications:

• 📱 Install TWRP Recovery or other custom Recovery.
• 🔄 Run LineageOS, Pixel Experience or other alternative OS.
• 🔧 Getting Root Rights through Magisk.
• 🛠️ Restore the device via Fastboot in case of serious failures.

The unlocking process is officially supported by Xiaomi, but requires confirmation through the Mi Account and waiting times (usually 3-7 days).

To unlock the loader:

1. Download the Mi Unlock Tool from the official website.
2. Turn on the smartphone Developer Mode (7 times click on the Version) MIUI customized).
3. Activate OEM Unlock and USB Debugging in the Developer Menu.
4. Connect Mi. 4C PC in Fastboot mode (click Power) + Loudness down).
5. Launch the Mi Unlock Tool, log in to your account and follow the instructions.

⚠️ Warning: Once the bootloader is unlocked, the smartphone will perform a complete data reset!

Installation TWRP Recovery and custom firmware

After unlocking the loader, you can start installing TWRP Recovery is an alternative recovery menu that allows you to stitch through unofficial software samples. 4C fitting TWRP 3.6.2 or later (check compatibility with your smartphone modification!).

Instructions for installing TWRP:

1. Download the image twrp-3.6.2-libra.img for Mi 4C official website.
2. Place the file in a folder with ADB/Fastboot PC-only.
3. Connect your smartphone in Fastboot mode.
4. Run the command: fastboot flash recovery twrp-3.6.2-libra.img
5. Reboot to Recavator Team: Fastboot Boot twrp-3.6.2-libra.img

If TWRP successfully loaded, make a backup of the current firmware (Backup) → Select Partitions).

For custom firmware installation (e.g. LineageOS 16):

• 📁 Download. ZIP-Firmware archive and GApps (if you need Google services).
• 🔄 Move files to a memory card or internal memory.
• 🛠️ V TWRP Choose the Wipe → Advanced Wipe and tag Dalvik, Cache, Data, System.
• 📥 Press Install, select. ZIP Firmware and confirm installation.
• 🔄 Repeat the step for GApps (if required).
• 🔄 Reboot to the system.

⚠️ Warning: The first boot after the firmware can take 10-15 minutes. Do not interrupt the process, even if the screen remains black for a long time!

💡

Before firmware check the compatibility of the image with the modification of your Mi 4C. For example, firmware for the version with Snapdragon 808 is not suitable for the model with Snapdragon 801 – this will lead to a “brick” (inoperability) of the device.

Optimizing performance and battery

Xiaomi Mi 4C It's not very modern, iron-based, so it requires the right optimization to work smoothly. MIUI:

• 🚀 Enable Performance Mode in Settings → Additionally. → Battery and productivity.
• 🔋 Turn off Auto Brightness and set a fixed value (e.g., 50–60%).
• 📵 Limit the background activity of applications in Settings → Annexes → Permits → Auto-start.
• 🗑️ Clean the cache regularly through Settings → Memory. → Cleanup.

For additional acceleration, you can turn off the interface animation by activating the Developer Mode and setting the values:

Windows animation: 0.5x


Transition animation: 0.5x




Duration of animator: 0.5x

If you use custom firmware (for example, LineageOS), we recommend:

• 🔄 Install FrancoKernel or ElementalX kernel for better CPU frequency management.
• 🔋 Use the Magisk module to optimize your battery (e.g. Greenify or Battery Optimizer).
• 📱 Disable unnecessary system applications via Titanium Backup or Debloater.

⚠️ Warning: Removing system applications can lead to unstable work! TWRP.

Network and Internet setting

Xiaomi Mi 4C supportive 4G LTE, But some firmware may have problems connecting to modern carriers:

• 📶 Check if the option is activated. 4G In Settings → SIM-maps and mobile networks → Preferred type of network.
• 🔄 Update. IMEI (if it dropped after firmware) through the engineering menu (#4636##).
• 📡 Set the right ones. APN-settings for your operator (you can find them on the official website of the provider).
• 🔧 If problems persist, go through the modified modem.img for your firmware.

To improve the speed of Wi-Fi:

• 📶 Switch to the 5GHz band (if the router supports it).
• 🔄 Turn off Wi-Fi Assist in network settings (it can switch the connection to mobile data without warning).
• 📡 Set up static. IP-address for the smartphone in the settings of the router.

If Mi 4C Often loses connection, try to disable Traffic Saving in Settings SIM-map.

💡

For a stable job. 4G On custom firmware, you need to sew compatible modem.img and persist.img. These files can be found in thematic forums (for example, in the, XDA Developers).

Backup and recovery of data

Backup on Xiaomi Mi backup 4C can be performed in several ways:

• 🔄 Through MIUI Backup (Settings) → Additionally. → Backup).
• 📁 Through TWRP Recovery (full backup of all sections).
• ☁ Google Drive (Sync Contacts, Photos and Apps).
• 💻 Through ADB Backup (adb backup team) -apk -shared -all -f backup.ab).

The most reliable option is backup in TWRP, It saves the entire system, including settings and applications.

To recover data from the backup TWRP:

1. Download to TWRP Recovery.
2. Select Restore and specify the folder with backup.
3. Mark the partitions for recovery (usually Boot, System, Data).
4. Confirm the action and wait for the completion.

⚠️ Warning: Restoring backup to another firmware version can lead to errors.

If you need to transfer data from another smartphone, use:

• 📱 Mi Mover (application from Xiaomi for transferring files over Wi-Fi).
• 🔄 Google Account (Sync Contacts, Calendar and Mail).
• 💾 OTG-cable for direct copying of files from a flash drive or other device.

Frequent problems and their solutions

Xiaomi Mi 4C — It's a reliable device, but you can get the typical malfunctions as you age:

If Mi 4C Does not respond to the power button, try it:

• 🔋 Connect to charging for 30 minutes (possibly battery drained).
• 🔄 Clutch power. + Loudness down for 10-15 seconds (forced reboot).
• 🛠️ Disassemble the device and disconnect/connect the battery (requires skills!).

If nothing helps, the motherboard or power controller is likely to be faulty.

💡

Before selling or transferring a smartphone to another user, be sure to perform Wipe Data in the TWRP Or through stock recavators, which will delete all data, including accounts and files.

FAQ: Answers to popular questions