Genuine Lenovo Yoga Convertible System Mainboard (BDPLANAR Replacement Suite)
12th Gen Intel Core i5-1235U 🟢 8GB Soldered LPDDR5 RAM 🟢 Part Number: 5B21H71492🚀 TRUSTED US-BASED SELLER 🟢 FAST 1-DAY HANDLING TIME🟢 Proudly USA Sourced: This item ships directly from our secure warehouse facility within the United States. No long overseas customs holdups, no international routing bottlenecks, and seamless domestic communication.
🟢 Fast 1-Day Handling Turnaround: Packaged with professional care and dispatched to the carrier transit network within 1 business day of cleared payment. Real-time tracking numbers uploaded instantly.
🟢 USA Shipping: 100% Free standard tracking shipping anywhere across the United States via USPS Ground Advantage or alternate tracked ground paths.
🟢 Logistics Safety: Protected inside its genuine Lenovo packaging and wrapped heavily in a premium anti-static ESD shielding bag to survive transit impacts cleanly.
🟢 Global Availability: International transit is supported to select eligible regions via the secure International Shipping program. (Please check the exclusions tab for country eligibility verification).🔴🔴🔴 GEAR IMPORTANT TECHNICIAN NOTE FOR INSTALLATION (READ BEFORE BUYING): 🔴🔴🔴🔴 100% BRAND NEW OEM STOCK: This motherboard is pristine, brand-new factory inventory (New Old Stock). It is NOT a pulled, used, or refurbished board.
🔴 BLANK EEPROM CHIP: Because this mainboard is factory-fresh, the internal BIOS EEPROM chip is clean and unprogrammed. This is the deliberate global factory standard for all uninstalled business-class replacement hardware.
🔴 FIRST BOOT EXPECTATION: Upon your initial power-on cycle, the system will display a standard boot error reading: "Machine Type and Model (MTM) / Serial Number are Invalid." Editing fields inside the basic user BIOS screen will be greyed out.
🔴 SYSTEM FLASH REQUIRED: To clear this boot warning and securely link the hardware to your laptop casing, you must inject your system's serial information. This standard field procedure is easily completed by running the official Lenovo Hardware Maintenance Diskette (HMD) bootable USB utility or the ThinkPad Motherboard Self-Repair Tool.
🔴 ACTIVATION & STABILITY: Windows 11 Pro will detect the core hardware architecture and activate uniquely without issues once configuration data is injected.
🔴 STRICT PURCHASE TERMS: If you or your service repair center are unfamiliar with standard Lenovo fleet deployment procedures, please contact us prior to purchase. We do not cover return shipping or authorize refunds for buyers who mistake factory-blank setup screens for hardware defects. Professional IT depots and independent technicians can buy with absolute confidence!📋 ENTERPRISE CORE PERFORMANCE HIGHLIGHTSThis genuine, authentic Lenovo factory replacement system mainboard features a highly efficient 12th Generation Intel Core i5 processor architecture and a premium on-board factory memory configuration, perfect for specialized laptop hardware restoration.🔵 Integrated Processor Core: Intel Core i5-1235U (Up to 4.40 GHz Turbo, 10 Cores [2 Performance / 8 Efficient], 12 Threads, 12MB Smart Cache).
🔵 Graphics Architecture Engine: Integrated Intel Iris Xe Graphics (UMA graphics processor array).
🔵 System Memory Infrastructure: 8GB Soldered LPDDR5 RAM configured in high-bandwidth Dual-Channel architecture (0 open slots remaining).
🔵 On-Board Protection Layer: Intel Platform Trust Technology (Firmware-based fTPM 2.0 security encryption array) embedded natively.🔄 OFFICIAL FACTORY COMPATIBILITY MATRIXPlease note that this motherboard is built under highly specific factory engineering metrics for premium ultra-slim 2-in-1 convertible devices. According to official Lenovo logistics records, this board has ZERO alternate part substitutes. It is designed exclusively as a direct drop-in replacement for the following machine line:● Lenovo Yoga 7 14IAL7 Laptop: Chassis Model Type 82QE exclusively.⚠️ STRICT BUYER ACCURACY & FITMENT DISCLAIMER🔴 NO SUBSTITUTES: This motherboard has no interchangeable part alternatives. It requires an exact match. Do not attempt to purchase this board if your failed component does not display part number 5B21H71492 on its white barcode label.
🔴 BUYER RESPONSIBILITY: It is the absolute responsibility of the buyer to confirm exact model and configuration parameters prior to completing checkout.
🔴 CONVERTIBLE CHASSIS LIMIT: This board features an ultra-slim convertible trace layout and factory-soldered LPDDR5 paths. It fits exclusively within the 14-inch Lenovo Yoga 7 14IAL7 (Model Type: 82QE) 2-in-1 frame. It WILL NOT line up with standard clam-shell IdeaPad or ThinkPad laptop screw brackets, alignment ports, or internal cooling frames.🛠️ HARDWARE WAREHOUSE & CONDITION NOTES:🟢 OEM Warehouse Logistics Source: Sourced directly from professional tech fulfillment logistics as a clean, crisp, mint factory service replacement part. It is 100% brand new, completely unused, and has never been slotted into an active chassis.
🟢 Internal Packaging Integrity: Stored safely inside its genuine Lenovo cardboard shipping packaging container. The internal gray anti-static ESD shielding bag was opened strictly for quality control to capture clear photographs and document system serialization lines for safety.
🟢 Professional Installation Advised: Laptop mainboards are highly sensitive to electrostatic discharge (ESD). Installation by a certified PC hardware repair technician is strongly advised. User-inflicted static shorts, physical trace scratches, or bracket snaps void return privileges. Does not include a CMOS backup battery or outer cooling heatsink assemblies.🛡️ ANTI-FRAUD PROTECTION & RETURN AUDITING● Individual Mapping: High-resolution macro photographs of the specific board layout, silicon chips, and trace pathways are permanently cataloged in our secure fulfillment database prior to dispatch.
● Electronic Serial Tracking: The unique factory serial numbers, MAC addresses, and integrated hardware cryptographic chips of every unit are electronically scanned and mapped to your order transaction.
● Security Identifiers: Each unit is embedded with unique, permanent, invisible security identifiers applied to the multi-layer PCB substrate. Any evidence of component swapping or tampering voids returnsImportant Item Specifics

• Brand: Lenovo
• MPN: 5B21H71492
• Compatible Product Line: Lenovo Yoga 7 14IAL7 (Type 82QE)
• Processor Brand / Model: Intel Core i5-1235U 12th Gen Onboard
• Memory Size / Type: 8 GB Soldered LPDDR5 (Dual-Channel Architecture)
• Integrated On-Board Graphics: Integrated Intel Iris Xe Graphics
• Seller Location: United States (US-Based Seller)
• Handling Time: Fast 1 Business Day
• Features: Firmware fTPM 2.0 Security Encryption Array
• Condition: Open Box