What is the connector in Xiaomi Redmi 4X: microUSB or Type-C? Full charging and accessories guide

Xiaomi Redmi 4X is one of the most popular budget smartphones of 2017, which is still used by many users. However, when buying a new cable, powerbank or charger, owners often face the question: what connector is installed in this model? The answer seems obvious to power users, but for beginners it can be a real puzzle, especially if previously they only dealt with modern smartphones on USB Type-C.

In this article, we will not only reveal the type of connector in Redmi. 4X, But we'll also talk about its technical specifications, its compatibility with different charging standards, and we'll give you practical tips for choosing accessories, and you'll learn why using an inappropriate cable or power supply can shorten the battery life of your battery. 20-30%, And how to avoid the typical charging errors, and the material will be useful to both Redmi owners. 4X, and those who are planning to buy a used model or a gift to relatives.

Type of connector in Xiaomi Redmi 4X: official data

Smartphone Xiaomi Redmi 4X (codenamed santoni) is equipped with a classic microUSB 2.0 connector.

• 📄 Official Xiaomi documentation (user manual and specifications on the manufacturer's website).
• 🔍 Disassembly of the device on YouTube and profile forums (for example, 4PDA or XDA Developers).
• 🛒 The package with the new device always had a cable with microUSB at one end and USB-A elsewhere.

It is important to understand that microUSB is not just an old connector, but a standard with specific technical limitations, such as it supports a maximum data rate of up to 480 Mbps (USB 2.0) and a charging current of up to 2A in standard mode. For comparison, the modern USB Type-C in the Redmi Note 12 can transmit data at speeds up to 10 Gbps (USB 3.2) and supports currents up to 3A and above.

Why Redmi 4X doesn’t have USB Type-C: Historical context

In 2017, when Redmi 4X was released, USB Type-C was just beginning to gain popularity in the budget segment.

1. Component cost: Type-C connectors and controllers were 30-50% more expensive than microUSB.
2. Accessory Compatibility: In 2017, most powerbanks, car charging and audio adapters only supported microUSB.
3. No real need. the Redmi 4X did not support fast charging above 10W, and the Type-C at the time was associated predominantly with flagships (such as the Xiaomi Mi 6).

Interesting fact: even in 2018, Xiaomi released models with microUSB, for example, Redmi 6A. The complete transition to Type-C in the budget lineup occurred only with the release of Redmi 8 at the end of 2019. This means that if you buy used Redmi release before 2020, with a probability of 80% there will be microUSB.

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If you often confuse cables, stick a bright label on the microUSB cable or use a colored cable, which will help avoid trying to connect the Type-C to the wrong connector.

Technical characteristics of the microUSB connector in Redmi 4X

The microUSB connector in the Redmi 4X has the following key parameters:

One of the main disadvantages of microUSB is its asymmetrical design – the connector can only be inserted with one side, unlike the Type-C. This leads to faster wear and tear of both the cable and the port in the phone. According to service centers, up to 60% of connector failures in the Redmi 4X are due to mechanical damage when the connection is sloppy.

Compatibility with chargers and cables

Although the Redmi 4X officially only supports standard 5V/2A (10W) charging, many users are trying to speed up the process with powerful adapters.

• ⚡ Original power supply unit: 5V/2A (10W). Full charge time — ~2.5 hour.
• ⚡ Blocks with Quick Charge 2.0/3.0: The phone will only take 5V/2A, It does not support fast charging protocols.
• ⚡ Powerbank: Any one with a release will do USB-A and current up to 2A. Avoid cheap models with claimed current 3A+ — They can damage the power controller.
• 🔌 Cables: Use only certified cables with labels AWG 24/28 (Thin cables can overheat.

An important nuance: if you connect the Redmi 4X to a Quick Charge-enabled charge (such as from Samsung or OnePlus), the phone will still charge in standard mode. However, some non-original power supplies can deliver high voltage (9V or 12V), which will overheat or even fail the power controller.

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The Redmi 4X does not support fast charging – using powerful adapters (18W, 30W+) will not speed up the process, but it can shorten battery life.

⚠️ Warning: Never use cables with damaged braiding or bare wires.In microUSB power contacts (+5V and GND) located at the edges of the connector, and when closed, this can lead to a short circuit and the phone fails.

How to extend the life of a microUSB connector in Redmi 4X

The microUSB connector is one of the most vulnerable spots in the Redmi 4X. Here are some practical tips to help avoid it breaking:

Carefully insert the cable without making any effort|Do not charge your phone in wet conditions|Regularly clean the connector from dust and debris|Use cables with magnetic connectors (if supported)|Avoid “twitching” the cable when connected-->

One of the most effective ways to protect the connector is to use wireless charging. Although the Redmi 4X does not support it out of the box, you can buy a special Qi receiver with a microUSB connector that is inserted into the port of the phone and allows you to charge according to the Qi standard. The cost of such an adapter is from 300 to 800 rubles. Minus solution: charging speed will be lower (about 5W), but the phone connector will remain intact.

Another common problem is contact oxidation, and if your phone has stopped charging or detecting a PC connection, try cleaning the connector carefully:

1. Turn off the phone and remove the battery (if possible).
2. Take a wooden toothpick and moisten it in isopropyl alcohol (do not use vodka or acetone!).
3. Gently wipe the contacts in the connector, removing the plaque.
4. Let the phone dry for 10-15 minutes before connecting.

Frequent connector problems and their solutions

Owners of Redmi 4X often face the following connector-related issues:

If the phone stops charging at all, first check:

1. Power of the socket/USB-port.
2. Integrity of the cable (try charging another device).
3. Clean connector in the phone (light with a flashlight).
4. Power supply failure (measure the voltage with a multimeter, if possible).

⚠️ Warning: If the charger starts to warm up more than usual or the connector sparks, immediately turn off the power! This is a sign of a short circuit that can lead to fire. In such cases, do not try to fix the phone yourself - contact the service.

Alternative ways to charge Redmi 4X without microUSB

If the connector in your Redmi 4X is out of order, but you are not ready to carry it immediately for repair, you can use alternative charging methods:

• 🔋 Charging through OTG-Adapter: If you have powerbank with output USB-A, You can connect it to the phone through OTG-cable (microUSB) → USB-A). Cons: the charging speed will be lower.
• 🔌 Docking station use: Some universal docks support charging through spring contacts that press against the back of the phone (removal of the cover required).
• 🔄 Wireless charging: As mentioned earlier, you can buy a Qi receiver and use any wireless charging pad.
• 🔧 Direct battery connection: in extreme cases (for example, on a hike) you can gently solder wires from the charger directly to the contacts of the battery!

It's worth noting that these are all temporary solutions, and for long-term use, it's recommended to replace the service center connector, and the average cost of repair in 2026 is:

• Replacement of the microUSB connector is 800-1500 rubles.
• Replacement of the connector + restoration of contacts on the board - 1500-2500 rubles.

FAQ: Frequent questions about the Xiaomi Redmi 4X connector