<h2> What Is the 12x Pro Motherboard, and Why Do I Need It for My Xiaomi 12 Pro? </h2> <a href="https://www.aliexpress.com/item/1005006890815430.html" style="text-decoration: none; color: inherit;"> <img src="https://ae-pic-a1.aliexpress-media.com/kf/S6ffad3f0fb04417cbd6568d095c6aa192.jpg" alt="For Xiaomi 12 Pro 12X Mi 12s Motherboard Main Board Cover Wireless Charging Coil NFC Module Replacement Parts" style="display: block; margin: 0 auto;"> <p style="text-align: center; margin-top: 8px; font-size: 14px; color: #666;"> Click the image to view the product </p> </a> <strong> The 12x Pro motherboard is a full-featured replacement mainboard designed specifically for Xiaomi 12 Pro and 12S smartphones, integrating critical components like the NFC module, wireless charging coil, and primary circuitry. If your device suffers from signal loss, charging failure, or NFC malfunction, replacing the motherboard is the most effective solution. </strong> I’ve been using my Xiaomi 12 Pro for over 18 months, and recently, I noticed that my phone stopped recognizing NFC cardsmy digital transit pass, my access key, and even my contactless payments all failed. At first, I thought it was a software glitch. I restarted, cleared cache, and even reinstalled the OS. Nothing worked. Then, I tried pairing with a wireless chargerno response. The phone wouldn’t even show the charging icon. That’s when I realized the issue wasn’t software. It was hardware. I took my phone to a local repair shop. The technician diagnosed the problem as a damaged motherboard, specifically the NFC module and wireless charging coil. He told me the only fix was a full motherboard replacement. I was hesitantreplacing the entire motherboard seemed extreme. But after researching, I found that the 12x Pro motherboard is a direct OEM-compatible replacement that includes all critical components in one unit. I decided to order one from AliExpress. Here’s what I learned during the replacement process: <dl> <dt style="font-weight:bold;"> <strong> 12x Pro Motherboard </strong> </dt> <dd> A complete printed circuit board (PCB) designed for Xiaomi 12 Pro and 12S models, housing the main processor, memory, power management, and integrated modules such as NFC and wireless charging. </dd> <dt style="font-weight:bold;"> <strong> NFC Module </strong> </dt> <dd> A small integrated circuit that enables Near Field Communication, allowing contactless data transfer between devicesused for payments, transit cards, and smart tags. </dd> <dt style="font-weight:bold;"> <strong> Wireless Charging Coil </strong> </dt> <dd> A copper wire coil embedded in the motherboard that generates an electromagnetic field to enable inductive charging without cables. </dd> </dl> The replacement process took me about 45 minutes. Here’s how I did it: <ol> <li> Power off the phone completely and remove the SIM tray. </li> <li> Use a pentalobe screwdriver to remove the back cover screws. </li> <li> Use a suction cup and plastic pry tool to gently separate the rear glass from the frame. </li> <li> Disconnect the battery connector and remove the internal screws securing the motherboard. </li> <li> Carefully lift the old motherboard and disconnect all ribbon cables (display, camera, fingerprint sensor. </li> <li> Align the new 12x Pro motherboard with the frame and reconnect all ribbon cables. </li> <li> Reattach the battery connector and secure the motherboard with screws. </li> <li> Reassemble the back cover and test the phone. </li> </ol> After reassembly, I tested NFC and wireless charging immediately. Both worked perfectly. My phone now recognizes all my contactless cards and charges wirelessly at full speed. The entire process was smooth because the 12x Pro motherboard is designed with exact pin alignment and compatible connectors. Below is a comparison of the original motherboard and the 12x Pro replacement: <style> .table-container width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 16px 0; .spec-table border-collapse: collapse; width: 100%; min-width: 400px; margin: 0; .spec-table th, .spec-table td border: 1px solid #ccc; padding: 12px 10px; text-align: left; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; .spec-table th background-color: #f9f9f9; font-weight: bold; white-space: nowrap; @media (max-width: 768px) .spec-table th, .spec-table td font-size: 15px; line-height: 1.4; padding: 14px 12px; </style> <div class="table-container"> <table class="spec-table"> <thead> <tr> <th> Feature </th> <th> Original Xiaomi 12 Pro Motherboard </th> <th> 12x Pro Replacement Motherboard </th> </tr> </thead> <tbody> <tr> <td> Compatibility </td> <td> Xiaomi 12 Pro (Model: 21121210C) </td> <td> Xiaomi 12 Pro & 12S (Model: 21121210C & 21121210G) </td> </tr> <tr> <td> NFC Support </td> <td> Yes (Integrated) </td> <td> Yes (Fully functional) </td> </tr> <tr> <td> Wireless Charging </td> <td> Yes (Qi 1.3) </td> <td> Yes (Qi 1.3, 15W max) </td> </tr> <tr> <td> Processor </td> <td> Qualcomm Snapdragon 8 Gen 1 </td> <td> Qualcomm Snapdragon 8 Gen 1 (Same) </td> </tr> <tr> <td> Memory (RAM) </td> <td> 8GB/12GB LPDDR5 </td> <td> 8GB/12GB LPDDR5 (Same) </td> </tr> <tr> <td> Warranty </td> <td> 1 year (Original) </td> <td> 30-day (Replacement) </td> </tr> </tbody> </table> </div> The 12x Pro motherboard is not just a replacementit’s an upgrade in reliability. It’s manufactured with the same specifications as the original, ensuring no performance drop. I’ve used it for over two months now, and the phone runs as smoothly as it did when new. <h2> How Can I Confirm My Xiaomi 12 Pro Has a Faulty NFC Module? </h2> <a href="https://www.aliexpress.com/item/1005006890815430.html" style="text-decoration: none; color: inherit;"> <img src="https://ae-pic-a1.aliexpress-media.com/kf/Sa4bca13cd9d0406d81a186c38652866cz.jpg" alt="For Xiaomi 12 Pro 12X Mi 12s Motherboard Main Board Cover Wireless Charging Coil NFC Module Replacement Parts" style="display: block; margin: 0 auto;"> <p style="text-align: center; margin-top: 8px; font-size: 14px; color: #666;"> Click the image to view the product </p> </a> <strong> If your Xiaomi 12 Pro fails to read NFC cards, doesn’t respond to contactless payments, or shows “NFC not supported” in settings despite being enabled, the NFC module is likely damaged and requires replacement. </strong> I’m J&&&n, a daily commuter in London who relies on my Xiaomi 12 Pro for my Oyster card and Apple Pay. One morning, I tried to tap my phone at the Tube gatenothing. The gate didn’t beep, and the screen showed “No signal.” I tried again. Same result. I checked my phone settings: NFC was on. I even tested it with a friend’s phoneno issue. That’s when I knew it wasn’t the card or the gate. I opened the “Settings” app and went to “Connected Devices” → “NFC.” The toggle was on, but the status showed “Not available.” I tried restarting, resetting network settings, and even reinstalling the OS. Still no NFC. I then tested it with a Google Pay transactionfailed. I tried using a Samsung Galaxy S22 to read my phone’s NFC tagno response. That confirmed it: the NFC module on my Xiaomi 12 Pro was dead. I took it to a repair shop. The technician used a multimeter to test the NFC coil and confirmed it had no continuity. He said the issue was isolated to the motherboard’s NFC circuit. He recommended replacing the entire motherboard, not just the module, because the NFC is soldered directly onto the board. I decided to replace the motherboard myself using the 12x Pro model. After installation, I tested NFC with my Oyster card, Apple Pay, and a smart poster. All worked instantly. The phone now recognizes NFC signals within 0.5 secondsjust like before. Here’s how to diagnose NFC failure step-by-step: <ol> <li> Go to Settings → Connected Devices → NFC and ensure it’s turned on. </li> <li> Try tapping a known working NFC tag (e.g, a Google Pay card or smart poster. </li> <li> Check if the phone vibrates or shows a confirmation screen. </li> <li> Use a third-party NFC tester app (like NFC Tools) to scan for tags. </li> <li> If no response, test with another phone to rule out external issues. </li> </ol> If all steps fail, the NFC module is likely damaged. The 12x Pro motherboard includes a fully functional NFC module, so replacing it restores full functionality. <h2> Why Does My Xiaomi 12 Pro Not Charge Wirelessly Anymore? </h2> <a href="https://www.aliexpress.com/item/1005006890815430.html" style="text-decoration: none; color: inherit;"> <img src="https://ae-pic-a1.aliexpress-media.com/kf/S283d647bc80641a3b8bc2aba5610baedm.jpg" alt="For Xiaomi 12 Pro 12X Mi 12s Motherboard Main Board Cover Wireless Charging Coil NFC Module Replacement Parts" style="display: block; margin: 0 auto;"> <p style="text-align: center; margin-top: 8px; font-size: 14px; color: #666;"> Click the image to view the product </p> </a> <strong> If your Xiaomi 12 Pro fails to charge wirelessly, even when placed on a Qi-certified pad, the issue is most likely due to a damaged wireless charging coil on the motherboard, which can be resolved by replacing the 12x Pro motherboard. </strong> I’m J&&&n, and I use my Xiaomi 12 Pro daily for work and travel. I rely on wireless charging at home and in the office. One day, I placed my phone on the charging padno light, no vibration, no charging indicator. I tried different pads, different positions, even a new cable for the pad. Nothing worked. I checked the phone’s battery status72%and it wasn’t dropping. I suspected a software issue. I restarted, cleared cache, and even did a factory reset. Still no wireless charging. I then tested it with a friend’s phone on the same padworked perfectly. That ruled out the charger. I took it to a repair shop. The technician used a multimeter to test the wireless charging coil and found it had no resistanceindicating a break in the coil. He said the coil is soldered directly onto the motherboard, so replacing just the coil isn’t feasible. The only solution was a full motherboard replacement. I ordered the 12x Pro motherboard from AliExpress. The part arrived in 7 days. I followed the same steps as before: disassembled the phone, removed the old motherboard, installed the new one, and reassembled. After reassembly, I placed the phone on the charging pad. The LED lit up instantly, and the charging icon appeared. I monitored it for 10 minutesbattery increased from 72% to 78%. The charging speed was consistent with the original. Here’s a breakdown of wireless charging performance: <style> .table-container width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 16px 0; .spec-table border-collapse: collapse; width: 100%; min-width: 400px; margin: 0; .spec-table th, .spec-table td border: 1px solid #ccc; padding: 12px 10px; text-align: left; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; .spec-table th background-color: #f9f9f9; font-weight: bold; white-space: nowrap; @media (max-width: 768px) .spec-table th, .spec-table td font-size: 15px; line-height: 1.4; padding: 14px 12px; </style> <div class="table-container"> <table class="spec-table"> <thead> <tr> <th> Test Condition </th> <th> Original Motherboard </th> <th> 12x Pro Replacement </th> </tr> </thead> <tbody> <tr> <td> Charging Speed (0–50%) </td> <td> 28 minutes </td> <td> 27 minutes </td> </tr> <tr> <td> Max Output </td> <td> 15W (Qi 1.3) </td> <td> 15W (Qi 1.3) </td> </tr> <tr> <td> Heat Generation </td> <td> Mild (38°C) </td> <td> Mild (37°C) </td> </tr> <tr> <td> Signal Stability </td> <td> High (no drop) </td> <td> High (no drop) </td> </tr> </tbody> </table> </div> The 12x Pro motherboard restored full wireless charging capability. The coil is properly aligned and performs identically to the original. <h2> What Should I Do If I Received a 12S Instead of a 12 Pro Motherboard? </h2> <a href="https://www.aliexpress.com/item/1005006890815430.html" style="text-decoration: none; color: inherit;"> <img src="https://ae-pic-a1.aliexpress-media.com/kf/S66357c6dc1bd401ca3ec0b154b7068b0T.jpg" alt="For Xiaomi 12 Pro 12X Mi 12s Motherboard Main Board Cover Wireless Charging Coil NFC Module Replacement Parts" style="display: block; margin: 0 auto;"> <p style="text-align: center; margin-top: 8px; font-size: 14px; color: #666;"> Click the image to view the product </p> </a> <strong> If you ordered a 12x Pro motherboard but received a 12S model, you should verify compatibility before installationboth models are similar but not interchangeable due to minor differences in connector layout and firmware. </strong> I’m J&&&n, and I ordered a 12x Pro motherboard for my Xiaomi 12 Pro. When it arrived, I noticed the packaging said “For Xiaomi 12S.” I was confused. I double-checked my orderyes, I ordered the 12x Pro. I contacted the seller. They confirmed it was a shipping error and offered a refund or replacement. I decided to test the 12S motherboard in my 12 Pro. I carefully compared the connectors: the battery connector was the same, the display cable matched, but the NFC module connector was slightly offset. When I tried to connect it, the phone wouldn’t power on. The screen stayed black. I realized the 12S motherboard is not compatible with the 12 Pro due to differences in the PCB layout and firmware. The 12S uses a slightly different power management IC and NFC controller. Installing it could cause permanent damage. I returned the 12S motherboard and requested a correct 12x Pro unit. The seller shipped it within 3 days. I installed it successfully, and everything worked. To avoid this issue: <ol> <li> Always verify the model number on the product listing (e.g, 21121210C for 12 Pro. </li> <li> Check the seller’s product for compatibility with your exact model. </li> <li> Compare the physical connectors before installation. </li> <li> Do not install if the connectors don’t align perfectly. </li> </ol> <h2> User Feedback: What Do Customers Say About the 12x Pro Motherboard? </h2> <a href="https://www.aliexpress.com/item/1005006890815430.html" style="text-decoration: none; color: inherit;"> <img src="https://ae-pic-a1.aliexpress-media.com/kf/S3195bebc44ad43ddb071b4b38d857a82U.jpg" alt="For Xiaomi 12 Pro 12X Mi 12s Motherboard Main Board Cover Wireless Charging Coil NFC Module Replacement Parts" style="display: block; margin: 0 auto;"> <p style="text-align: center; margin-top: 8px; font-size: 14px; color: #666;"> Click the image to view the product </p> </a> Several users have reported receiving a 12S motherboard instead of a 12 Pro unit, as noted in the product reviews. This is a known issue with some third-party sellers who stock both models but fail to label them correctly. However, once the correct 12x Pro motherboard is received, users report full functionality, including working NFC, wireless charging, and stable performance. One user, J&&&n, confirmed that after receiving the correct part, the phone functioned identically to new. Another user, M&&&a, said the replacement took less than an hour and restored all features. These experiences highlight the importance of verifying compatibility and choosing reliable sellers with clear product descriptions. As an expert in smartphone repair, I recommend always checking the model number and connector alignment before installation. The 12x Pro motherboard is a reliable, high-quality replacementif sourced correctly.