Xiaomi Mi 9 SE: how to turn on wireless charging and configure work

Owners of the popular compact flagship Xiaomi Mi 9 SE often face confusion when trying to activate wireless charging. Many users mistakenly believe that this model, like the older brother of the Mi 9, implemented Qi technology, allowing you to charge a smartphone without using cables. However, technical documentation and real tests suggest otherwise, which raises many questions for those who have just purchased the device or switched to it from other brands.

It is important to clarify immediately: Xiaomi Mi 9 SE does not support wireless charging at the hardware level. Inside the case, there is no necessary inductor and power controller, which are responsible for receiving energy from external panels. Trying to find a hidden setting in the menu or activate the function through the engineering menu will not lead to anything, since it is impossible to physically implement this process without modifying the device.

Despite the lack of built-in support, there are ways to get around this limitation. In this article, we will discuss the technical reasons for this manufacturer’s decision, consider the available alternative solutions and answer frequently asked questions. Understanding the architecture of your gadget will help you avoid buying useless accessories and properly organize the process of replenishing energy.

Technical limitations of the Mi 9 SE model

Xiaomi has divided the lineup into several models with different characteristics when creating the Mi 9 series. While the standard Mi 9 has a glass rear panel and a built-in coil for wireless charging up to 20 watts, the SE (Special Edition) version has been simplified. The main trade-off was the lack of an NFC module in some regions and, more importantly for our theme, the exclusion of wireless charging technology from the specifications.

The decision was driven by the need to reduce the cost of the device and keep the compact dimensions of the case. Engineers had to sacrifice some premium features to fit the powerful Snapdragon 710 processor into a small form factor. The lack of a receiving module means that even if you put the phone on any certified Qi panel, the charge indicator does not activate.

⚠️ Warning: Do not attempt to disassemble the smartphone for self-mounting the coil.This requires complex soldering of the plumes and changing the power scheme, which will lead to loss of warranty and a high risk of battery damage.

It is also worth noting that the MIUI software installed on the device does not contain drivers for working with a wireless charger in this particular model. Even if you theoretically connect a compatible module, the system will not be able to correctly control the charging process without appropriate support at the kernel level.

Why there is no activation point in the settings

Many users who have seen wireless charging on other Xiaomi smartphones start looking for a similar switch in their Mi 9 SE settings. Usually the path looks like Settings → Battery → Wireless Charging or through the Quick Access Panel. However, in this model you will not find this menu item, and this is normal system behavior.

The lack of a software switch is directly related to the lack of hardware. The MIUI-enclosed Android operating system diagnoses the connected modules when booting. If the controller does not detect the presence of a charging coil, the corresponding interface simply does not appear in the user menu, so as not to mislead the owner.

Some sources may suggest using third-party apps from the Google Play store that allegedly "enable" this feature. It's a myth. Software can't create a physical power-taking capability where there isn't, but can only simulate sound or animation, but there's no real battery charge.

Alternative solutions for wireless charging

If you still want to get rid of the wires when using the Xiaomi Mi 9 SE, there are external adapters. The most common option is to use special receivers that connect to the USB Type-C port. These devices are a thin plate with a coil that is inserted into the charging connector and lies under the back cover or case.

However, there are significant drawbacks to this method: first, the USB-C port will be constantly busy, which eliminates the possibility of simultaneous use of wired headphones or data transfer; second, the energy transfer efficiency is much lower than that of embedded systems, and the adapter itself can be heated, which is undesirable for a lithium polymer battery.

• 🔋 Receiver adapters require a free port. USB-C.
• 🔋 The charging speed through external receivers usually does not exceed 5-10 Watt.
• 🔋 Use of the cover is necessary to hide the protruding connector of the adapter.

A more convenient, though less elegant, solution is to use wireless charging power banks, so you put your smartphone on a power bank, and the power is transmitted inductively, and in this case the phone itself doesn't have built-in Qi support, because the receiver is in an external device, and the phone charges through its own port, if you use magnetic adapter rings attached to the case.

Comparison of charging speed: wired vs. external

It is important to understand the performance difference between regular fast charging and any external solutions. Xiaomi Mi 9 SE supports Quick Charge 3.0/4.0 technology, which allows you to fill a battery with a capacity of 3070 mAh from 0 to 100% in about an hour.

The table below compares the characteristics of standard wired charging and potential wireless solutions via adapters:

As you can see from the data, the standard method is much more efficient, because using wireless crutches increases the energy recovery time by two or more times, and the efficiency of wireless transmission is always lower due to the loss of energy on heat.

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The native wired charging Xiaomi Mi 9 SE is 2-3 times faster than any wireless counterparts and safer for the health of the battery.

Optimizing energy consumption without wireless charging

As Mi 9 SE owners have to use cable more often, it is important to manage battery resources wisely so as not to depend on the outlet all the time.The MIUI shell offers powerful energy saving tools that are worth configuring first.

Go to Settings → Battery and select the mode of operation. For everyday use, the optimal mode is Balance, but if you know that access to charging will not be long, switch to Saving Energy mode. It limits the background activity of applications and reduces the frequency of the processor.

• 📉 Turn off Always On Display if it is not critical, as AMOLED-The screen consumes energy even in a static image.
• 📉 Use a dark theme of design - on matrices AMOLED Black pixels do not consume energy.
• 📉 Limit background work for rarely used apps through battery settings.

It’s also worth paying attention to the Charging Optimization feature, which, while it doesn’t speed up the process, helps extend battery life by learning your habits and slowing down charging at night so you don’t keep your battery under 100% voltage for too long.

Frequent problems and their solution

Even with the wired method, users may encounter problems that are mistaken for a wireless module malfunction, such as a phone that may be slow to charge or interrupt the process, often due to contamination of the USB Type-C port or the use of poor-quality cable.

If you notice that charging is going in jerky fashion, try gently cleaning the charging connector with a wooden toothpick or compressed air.The villi from the pockets of clothing often seal at the bottom of the port, preventing the connector from entering the end and ensuring contact of all contacts.

⚠️ WARNING: Using cheap cables without support for fast charging protocols can cause the phone to charge as little as 0.5 Amps, which takes hours.

Another common problem is overheating. When charging in a thick case or in the sun, the phone can stop charging for safety reasons. Remove the case and move the device to a cool place so that the process resumes.

FAQ: Frequently Asked Questions

In conclusion, despite the lack of wireless charging, the Xiaomi Mi 9 SE remains a great device with fast wired charging. Understanding the technical limitations helps to avoid unnecessary costs and properly operate the gadget. Use high-quality cables and monitor the state of the port, and your smartphone will last a long time.