What is the charging connector for Xiaomi Redmi 4X: thorough + charging-board

Xiaomi Redmi 4X — One of the most popular budget smartphones of 2017, which is still in use today for its reliability and maintainability, but owners often have confusion about the type of charging connector, especially if the original cable is lost or out of order. In this article, we will not only answer the question of "what connector Redmi has". 4X", But we will also analyze all the nuances: from compatibility with modern adapters to safe charging rules that will prolong the life of your device.

Let's just say: Redmi 4X It is a smartphone generation when manufacturers have not yet switched to the USB Type-C. This means that the charging standard is outdated but still common. Next, you will learn how to distinguish the original cable from a fake, which adapters are suitable for fast charging (and whether they are at all), and what to do if the connector begins to “luft” or contact poorly.

Type of charging connector in Xiaomi Redmi 4X: record-keeping

Xiaomi Redmi 4X It is equipped with a Micro-USB 2.0 connector, a standard port for charging and data transfer, which was the main one in the industry from 2007 to 2016. USB Type-C, Redmi 4X It is a good old micro-USB.

Here are the key characteristics of the connector:

🔌 Type: Micro-USB (Type-B)
🔄 Version: USB 2.0 (data transfer speed up to 480 Mbps)
⚡ Maximum charging current: up to 2A (using the original adapter)
📏 Sizes: 6.85 × 1.8 mm (less than that of USB Type-C)

It is important to understand that Micro-USB has an asymmetrical shape – it can only be inserted by one side, unlike Type-C. This often leads to a break in the connector when the connection is sloppy.In addition, over time, contacts inside the port can wear out, which causes problems with charging or data transfer.

📊 What is the charging connector of your current smartphone?

Micro-USB

USB Type-C

Lightning (Apple)

Wireless charging

Other

Compatible cables and adapters: what you can use

Because Redmi 4X Micro-USB supports, you can use any cable with this connector, but not all of them are equally safe and efficient:

1. Xiaomi's original cables are the best choice.They have optimal wire cross-section and high-quality soldering, which reduces the risk of overheating. 4X markable MDY-08-EG (for the European version) and supports current up to 2A.

✅ Pros: stable charging, long service life, compatibility with fast adapters Xiaomi.
❌ Cons: hard to find on sale (smartphone is discontinued), high price on the used market.

2. third-party certified cables (e.g. Anker, Baseus, Ugreen) Please note when purchasing:

🔍 Marking: There must be a logo USB-IF (guarantee of conformity with the standard).
📦 Packaging: Original cables sold in a branded hologram box.
🔗 Connectors: metal parts must be solid, without backlash.

3. Charging adapters.Redmi 4X Supports Quick Charge technology 2.0, Only when using the original adapter MDY-08-EU (5V/2A, 9V/1.8A). If you use an adapter without support QC, The charging will go in standard mode (5V/1A or 5V/2A).

💡

To check if your adapter supports fast charging, connect your smartphone to it and enter the code ##4636##. In the section "Battery Information" will indicate the current charging current.

Compatibility table: cables and adapters for Redmi 4X

Accessory type	Model/Manufacturer	Max. Charging current.	Support for Quick Charge	Notes
The original cable.	Xiaomi MDY-08-EG	2A.	Yes. QC-adapter)	Best option, but it’s hard to find a new one.
Certified cable	Anker PowerLine Micro-USB	2.4A	Yes.	Strengthened braid, durability
Budget cable	No-name (AliExpress)	1A	No.	Risk of overheating, slow charging
The original adapter	Xiaomi MDY-08-EU (5V/2A, 9V/1.8A)	1.8A at QC)	Yes.	Supports fast charging
Universal adapter	Baseus 18W PD+QC	2A (in mode) QC)	Yes.	Suitable for other devices

⚠️ Note: Use of uncertified cables with thin wires (less than 24) AWG) It can cause the connector to overheat and even catch fire, and it is especially dangerous to charge your smartphone at night with a cable connected to a powerful adapter (for example, from a tablet).

Problems with the charging connector: diagnosis and solutions

Over time, the Micro-USB connector in Redmi 4X It can start to get "capitalized." These are the most common problems and ways to fix them:

1. Charging is only in a certain position of the cable

🛠️ Cause: wear or oxidation of contacts inside the connector.
🔧 Solution: Clean the connector gently with a toothpick dipped in alcohol!

2.The smartphone does not detect charging (writes "Charging suspended")

🔋 Cause: Power controller damaged or cable/adapter faulty.
🔌 Solution: Try another cable and adapter. If the problem persists, you need to repair the board.

3. The connector is shattered (backlash)

📱 Reason: mechanical wear of fixing the connector to the board.
🛒 Solution: in the service center can be soldered connector (cost) ~500-800 Self-repair is not recommended.

Try a different cable and adapter

Clean the connector from dust and dirt

Reboot your smartphone

Check the battery settings in the engineering menu (#4636##)

Contact the service center if nothing helps.-->

⚠️ Warning: If after cleaning the connector or replacing the cable, the smartphone begins to overheat during charging, immediately disconnect it from the network! This may indicate a short circuit in the power supply chain.

How to extend the life of the connector and battery Redmi 4X

Even legacy smartphones can last for years if properly cared for. Here are some tips specifically for Redmi 4X:

1. Proper charging

🔋 Use an original or certified adapter with a current of no more than 2A. More powerful adapters (such as tablets) can shorten battery life.
📉 Avoid full discharge. The optimal charge range is 20% to 80%. Full discharge (0%) and overcharging (100%) accelerate battery degradation.
🌡️ Do not charge in the heat or cold.Perfect temperature — 10-30°C. Pri. 0°The battery may temporarily die, and +40°C - swell.

2. Care behind the connector

🧹 Clean the connector from dust and debris regularly. Use compressed air (canister) or soft brush.
🔌 If the connector is "tight," check if the tongue inside is bent (a common problem after falls).
🛡️ Use a cover with the connector protection, which will prevent moisture and mechanical damage.

3. Software optimization

📱 Update the firmware to the latest version MIUI. New versions optimized energy consumption.
🔄 Turn off auto-update applications over the mobile network. This will reduce the load on the battery.
🌙 Activate the energy saving mode in the settings (Settings) → Battery → Energy saving regime).

💡

The most common cause of failure of a Micro-USB connector is mechanical damage when a cable is not sloppy. Always hold your smartphone with one hand when inserting a plug!

Frequent questions about charging Xiaomi Redmi 4X

We have collected answers to the most popular questions of Redmi owners. 4X charger:

❓ Can I use the cable? USB Type-C with a Redmi Charging Adapter 4X?

No, you can't directly. 4X It has a Micro-USB connector, and the Type-C cable doesn't physically fit. However, you can use a Type-C to Micro-USB adapter, but it's not recommended: ⚡ Loss of current: adapter will reduce the charging speed. 🔥 Risk of overheating: poor-quality adapters can melt. 📵 Unstable connection: possible charging breaks. Better buy a quality Micro-USB cable from a proven brand.

❓ Does Redmi support it? 4X quick-load?

Yes, but with reservations.The smartphone supports Quick Charge technology. 2.0, But only if you meet two conditions: Use of the original adapter Xiaomi MDY-08-EU (or certified with support QC 2.0). Use of original or high-quality Micro-USB cable with thick wires (24 AWG Maximum charging power in mode QC — 18 Watt (9V/2A), However, this is rarely achieved due to battery limitations.

❓ Why Redmi? 4X slow-load?

Slow charging can be caused by several reasons: 🔌 Faulty cable or adapter – try replacing them. 📱 Background Processes – Close all applications and activate flight mode. 🔋 Worn-out battery – if the smartphone is older than 3 years, you may need to replace the battery. 🌡️ Overheating – if the body is hot, charging automatically slows down. 🛠️ Problems with the connector - clear it of garbage or contact the service. Also check the settings: go to Settings → Battery → Settings → Charging mode and select "Fast Charging".

❓ Can I charge the Redmi? 4X power bank?

Yeah, but there's nuance: ✅ Suitable Power Bank: With Exit 5V/2A or 9V/2A (supportive QC 2.0). ❌ Inappropriate: Cheap Powerbanks with Exit 5V/1A — charging will be very slow. ⚠️ Careful: Don’t use a power bank and a smartphone at the same time (e.g., charge your phone and listen to music) and this increases battery load. 2 10000 mAh with Quick Charge support.

❓ How to replace the charging connector in Redmi 4X independently?

Replacement of Micro-USB connector in Redmi 4X It's possible at home, but it requires experience with a soldering iron. Here's a quick guide: Step-by-step, how to replace the connector. 1. Turn off your smartphone and remove the battery (if possible). 2. Carefully open the back cover with a mediator or plastic shoulder blade. 3. Disconnect the battery plume from the motherboard. 4. Heat the soldering iron socket contacts and remove it from the board. 5. Install a new connector (for example, art. Xiaomi Micro-USB Port for Redmi) 4X) And solder it. 6. Check the multimeter lack of short circuit. 7. Collect your smartphone in reverse order. ⚠️ Attention: Without soldering experience, you risk damaging the motherboard. If you're not sure, you'd better contact the service: 600-1200 RUB (depending on the region).

Alternative ways of charging: if the connector breaks

If you have a Micro-USB connector in your Redmi 4X completely out of order, and repair is impossible, there are several alternative ways to charge the smartphone:

1. Wireless charging

📱 How it works: Redmi 4X It does not support wireless charging out of the box, but you can use a Qi receiver that connects to battery contacts.
⚡ Pros: No mechanical wear of the connector.
❌ Cons: slow charging (max. 5W), requires disassembly of the smartphone.

2. Charging through OTG-cable

🔌 How it works: plug in OTG-adapter to the Micro-USB connector, and to it - cable with connector USB Type-A (from power bank or charging).
⚠️ Limitations: Charging current will be minimal (0.5-1A) and the connector itself must still be partially working.

Direct battery charging

🔋 How it works: Remove the battery and charge it with a universal charger (e.g. iMax) B6).
⚠️ Risks: requires care, improper connection can cause battery to swell.

⚠️ Attention: All alternative charging methods are a temporary solution. For permanent use, it is recommended to repair the connector or replace the smartphone, as unstable power can damage the power controller or fail the motherboard.

Conclusion: what connector Redmi 4X and how to use it properly.

Xiaomi Redmi 4X It comes equipped with a Micro-USB 2.0 connector, which is considered obsolete today but is still widely available:

🔌 Type of connector: Micro-USB (not compatible with Type-C without adapter).
⚡ Maximum current: 2A (using the original adapter with the QC 2.0).
🛡️ Safety: Use only certified cables and adapters.
🔧 Repair: if the connector breaks, it is better to contact the service (self-replacement is risky).

If you are planning to use Redmi 4X For a few more years, you should buy a spare original cable and adapter in advance.We also recommend you to monitor the battery condition: if the capacity decreases below 70% of the original (checked in the engineering menu or through the AccuBattery application), consider replacing it.

Despite the outdated connector, the Redmi 4X It's a reliable device that, if you take care of it properly, will last a long time, and the key is to not neglect safety rules and respond to the first signs of malfunction in time.