Xiaomi Redmi 9 Pro is a popular smartphone with powerful hardware and an affordable price, but in the basic configuration it does not support wireless charging. However, this does not mean that owners will have to put up with wired solutions. There are several ways to add Qi charging to this device, from external adapters to body modifications. In this article, we will analyze all working methods, their pros and cons, and give recommendations for choosing equipment.
It's important to understand that the Redmi 9 Pro (model number M2007J3SC) doesn't originally have a built-in wireless charging receiver, but this limitation is due to the design of the case and circuitry of the board, but you can get around it with additional accessories or minor hardware improvements, and we've tested all of the methods described below in practice, and we're ready to share the results — including charging speed, case compatibility and potential risks.
Compatibility Check: Does the Xiaomi Redmi 9 Pro support wireless charging?
Officially, Xiaomi Redmi 9 Pro does not support Qi standard or other wireless charging protocols.
- 📄 Specifications on Xiaomi website (no mention of wireless charging in specifications).
- 🔧 The design of the case: the back cover of the smartphone does not have a zone for the induction coil.
- 🔋 Schematics: Power controller MT6769V/CZ (Helio G80) Not optimized for AC processing from Qi transmitter.
But that doesn't mean you can't connect wireless charging, but there are workarounds.
- External Qi receivers (overhead adapters)
- Modified covers with built-in coil.
- Independent installation of the receiving module inside the housing (requires disassembly).
⚠️ Note: Using uncertified adapters can cause the battery to overheat or reduce capacity.We recommend choosing devices that support Qi 1.2.4 and power no higher than that of the battery. 10W For the Redmi 9 Pro.
Method 1: External Qi receiver is a simple and safe option
The most affordable method is to use a Qi overhead receiver that plugs into a smartphone’s USB-C connector and attaches to the back, which are sold on AliExpress, Amazon, or in specialty stores (such as Baseus or Nillkin).
Advantages of the method:
- ✅ It doesn't require disassembling the phone.
- ✅ Compatible with most Qi charging stations.
- ✅ You can easily remove and return the original charger.
Of the minuses:
- ❌ Increases the thickness of the smartphone by 2-4 mm.
- ❌ May interfere with the use of covers.
- ❌ Charging speed is limited 5W–7.5W (against 18W wired).
To connect, follow the steps:
Get an adapter with a USB-C connector (for example, Baseus Wireless Charger Receiver)
Connect the receiver to the USB-C port of the phone
Fix the adapter on the back (usually there is adhesive base)
Place your smartphone on a Qi charging station (center on the tags)
Wait for the charging indication to appear on the screen-->
Charging speeds will be lower than those of the wired method, but for night time or office use, this is enough. For example, using the Xiaomi Mi Wireless Charging Pad (20W) charging station, the real power will be ~5W.
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If the adapter is not well maintained, use 3M VHB double-sided tape – it can withstand multiple removals and leaves no traces.
Method 2: Case with built-in wireless charging
The alternative to the overhead receiver is a case with an integrated Qi coil, which is made by Spigen, Ringke and Chinese brands, and works similarly to an external adapter, but it looks more aesthetic.
Examples of compatible covers:
| Model case | Power (max.) | Thickness | Price (exemplary) |
|---|---|---|---|
| Spigen Qi Wireless Charging Case | 7.5W | 3.5 mm | ~1 500 ₽ |
| Ringke Fusion-X Wireless | 10W | 4 mm | ~1 800 ₽ |
| Nillkin Magic Pro | 5W | 2.8 mm | ~1 200 ₽ |
How to choose a case:
- 🔍 Check compatibility with Redmi 9 Pro (check the model) M2007J3SC).
- 🔋 Pay attention to the power: optimally 7.5W–10W.
- 📏 Note that the case will increase the dimensions of the phone (may interfere with the pocket).
⚠️ Warning: Some cases block access to the 3.5mm connector or volume buttons. Before buying, check the reviews of a particular model.
Method 3: Install an internal Qi module (for advanced users)
If you're ready to disassemble your smartphone, you can install an internal wireless charging receiver, which requires electronics skills and violates warranty, but gives you better results in speed and reliability.
Required components:
- 🛠️ Qi receiver for internal installation (e.g. Tenergy Universal).
- 🔧 Set of screwdrivers (cross-haul) Y000, flat).
- 🧲 Screen removal suction cups (optional).
- 🔥 Hazel-softening.
Step-by-step:
- Turn off the phone and remove it. SIM-map.
- Heat the back cover with a hair dryer (temperature ~60 ° C) and gently tuck it with a plastic spatula.
- Unplug the battery plume (use plastic tweezers!).
- Stick the Qi module to the back of the battery (avoid overlaying sensors).
- Connect the module to the contacts on the motherboard (usually a USB-C connector or separate pads).
- Put the phone back together and check its performance.
Critical: Incorrect connection of the module can cause short circuit or damage to the power controller. If you are not sure of your skills, contact the service center.
What if the phone does not turn on after installing the module?
Comparison of methods: which way to choose?
To determine the best option, compare the key parameters:
| Criteria | External adapter | Case with Qi | Internal module |
|---|---|---|---|
| Charging speed | 5W–7.5W | 7.5W–10W | 10W–15W |
| Complexity of installation | ⭐ (simple) | ⭐ (simple) | ⭐⭐⭐ (difficult) |
| Compatibility with covers | ❌ (hinder) | ✅ (built-in) | ✅ (thin-case) |
| Cost | 300–800 ₽ | 1 200–2 000 ₽ | 500–1 500 ₽ + risk |
Selection recommendations:
- 💡 For temporary use (trip, office) an external adapter is suitable.
- 💡 If design and convenience are important, choose a Qi case.
- 💡 For maximum speed and risk preparedness – internal module.
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The internal module gives you better charging speeds, but it requires you to disassemble the phone and breaks the warranty. The external solutions are safer, but less efficient.
How to check the efficiency of wireless charging?
After you connect the adapter or install the module, you need to make sure that the charging is working correctly.
- Place your phone on a Qi station (e.g. Xiaomi Mi Wireless Charging Stand).
- Check the display on the screen: a notification "Wireless charging" should appear.
- Use the Ampere app (available on Google Play) to measure charging current: 📊 Optimal values for Redmi 9 Pro: 300-500 mA (5W), 600-800 m (7.5W). 📉 If the current is below 200 mA, check the centering of the phone at the station.
40–45°C
50°C
If charging does not start:
- 🔄 Reboot the phone.
- 🔌 Check the power cable of the charging station (should be) USB-C Or Quick Charge).
- 📱 Make sure the adapter fits tightly to the back (no gaps).
Frequent problems and their solutions
When using wireless charging on the Redmi 9 Pro, there may be malfunctions.
Problem 1: The phone is not charging or charging is interrupted.
- 🔹 Reason: Incompatibility of adapter or charging station.
- 🔹 Solution: Use certified devices (e.g. Anker PowerWave or Belkin Boost Up).
Problem 2: Heat the phone (>50°C)
- 🔹 Reason: High charging power (>10W) or poor adapter contact.
- 🔹 Solution: Reduce the power station (if supported) or remove the case.
Problem 3: Slow charging (<200 mA)
- 🔹 Reason: Incorrect station positioning or poor adapter quality.
- 🔹 Solution: Center the phone by tags on the charging pad.
Problem 4: Charging only works in a certain position.
- 🔹 Cause: Coil damage in adapter or cover.
- 🔹 Solution: Replace the adapter or check the integrity of the contacts.
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If wireless charging is unstable, try using a charging station with a cooling fan (such as the RAVPower Fast Wireless Charger) to lower the temperature and improve contact.