📶 WWAN LTE Antennas for Lenovo ThinkPad X1 Yoga Gen 6 (2021) 📶

🖥️ X1 Yoga Gen 6 / Gen 7 / Gen 8 | WWAN antenna set with cables | FRU 5A31C41978

Genuine Lenovo WWAN antenna set for the Lenovo ThinkPad X1 Yoga Gen 6 (Type 20XY, 20Y0), and as equivalent 5A31C41977 also for the X1 Yoga Gen 7 and Gen 8. Part sourced from a working device and tested - we guarantee 100% functionality. The antennas are in perfect cosmetic condition.

⚙️ PRODUCT CHARACTERISTICS

The set consists of two L-shaped antenna modules mounted on metal brackets with mounting holes. Each module has two coaxial cables running to the WWAN modem (a blue/grey pair in a black sleeve and an orange/grey pair) and a short cable with a small multi-pin plug. The antennas send and receive the cellular signal, so without them the LTE modem in the laptop gets no reception. In the Lenovo parts catalogue FRU 5A31C41978 is listed as “ANTENNA Antenna WWAN,AMP”, and 5A31C41977 is marked as Equivalent. The antennas come from an X1 Yoga Gen 6 fitted with a 4G LTE-Advanced Cat 12 modem (Quectel EM120R-GL), providing mobile internet at up to 600 Mbps download and up to 150 Mbps upload.

📋 TECHNICAL SPECIFICATIONS

Part name: WWAN antennas (set of 2 modules with cables)
Brand: Lenovo ThinkPad
Compatible model: ThinkPad X1 Yoga Gen 6 (Type 20XY, 20Y0); as equivalent 5A31C41977 also ThinkPad X1 Yoga Gen 7 (Type 21CD, 21CE), X1 Yoga Gen 8 (Type 21HQ, 21HR)
Laptop size: 14"
Connectivity standard: 4G LTE-Advanced Cat 12, up to 600 Mbps download / 150 Mbps upload (with Quectel EM120R-GL modem)
Condition: Used (removed from a working device, tested), perfect cosmetic condition
Warranty: 6 months
FRU: 5A31C41978
Replacement number (Lenovo, Equivalent): 5A31C41977
Label markings: Lenovo PN SA30K98846 REV 0A, LCFC PN DC33001TT10, SAA PN TKC113-16-000-C; Lenovo PN SA30K98845 REV 0A, LCFC PN DC33001TT00, SAA PN TKC114-16-000-C

🌟 KEY ADVANTAGES

🔹 Genuine Lenovo part - the same antennas fitted at the factory in the X1 Yoga Gen 6 with a WWAN modem
🔹 Set of two modules with cables - both antennas with cabling at once, no extra cables to buy
🔹 Stable LTE reception - mobile internet on the laptop works on a train, in a car or at a cottage, without looking for Wi-Fi
🔹 Wide compatibility - fits the X1 Yoga Gen 6 and, as an equivalent, also Gen 7 and Gen 8
🔹 Perfect cosmetic condition - cables without kinks, brackets straight

🔢 PART NUMBERS

FRU: 5A31C41978
Replacement number (Lenovo, Equivalent): 5A31C41977
Label markings: SA30K98846, SA30K98845, DC33001TT10, DC33001TT00, TKC113-16-000-C, TKC114-16-000-C
Compatibility:
Per Lenovo for FRU 5A31C41978:
• ThinkPad X1 Yoga Gen 6 (Type 20XY, 20Y0)
Per Lenovo for equivalent 5A31C41977:
• ThinkPad X1 Yoga Gen 7 (Type 21CD, 21CE)
• ThinkPad X1 Yoga Gen 8 (Type 21HQ, 21HR)

❓ WHEN SHOULD YOU REPLACE THE WWAN ANTENNAS?

• Problem with weak LTE reception while a phone in the same place has full signal
• Problem with mobile internet that keeps disconnecting
• Problem with a broken or pinched antenna cable after an earlier repair
• Problem with missing antennas after adding a WWAN modem to a laptop that did not have one

🔧 INSTALLATION PROCESS

1. Turn off the laptop, disconnect the power adapter and disable the built-in battery in ThinkPad Setup (Disable built-in battery)
2. Remove the bottom cover - the WWAN antennas sit on the underside of the palmrest, there is no need to remove the display lid
3. Disconnect the antenna cables from the WWAN modem, noting which cable goes to which connector
4. Remove the antenna bracket screws and take out the old modules, noting how the cables are routed in the guides
5. Install the new modules, route the cables the same way and connect them to the modem
6. Refit the cover, start the laptop and check reception and the LTE connection
Replacement by a technical service or a person experienced in laptop repairs is recommended.

🎯 PURPOSE

These antennas are intended for ThinkPad X1 Yoga Gen 6, 7 and 8 users with a WWAN modem who have reception problems or damaged antenna cables, and for anyone adding an LTE modem to the laptop. The replacement restores stable mobile internet. The exact appearance and condition of the item are shown in the photos.

✅ COMPATIBILITY GUARANTEE

The offered antennas have been tested and matched to ThinkPad X1 Yoga Gen 6 laptops. We guarantee compatibility under FRU number 5A31C41978 and 100% functionality, covered by a 6-month warranty. In case of any compatibility issues we provide a hassle-free return within 14 days.

📞 NEED HELP? CONTACT OUR EXPERTS!

Do you have questions about the compatibility of these antennas with your ThinkPad or about choosing a WWAN modem? Our specialists will be happy to assist you. Contact us!
📱 Phone: +48-601-415357
📧 Email: sklep@abcdeal.pl

🦁 ABCDEAL - Your Trusted Lenovo Parts Specialist

We have been specialising in delivering genuine Lenovo laptop parts for years. Our experience allows us to offer top-quality products that meet the expectations of even the most demanding customers. Trust the experts and restore your X1 Yoga to full working order.

🎯 Choose professionals - invest in high quality!

By choosing genuine Lenovo WWAN antennas from our offer, you invest in stable mobile internet wherever you are. Benefit from the experience of ABCDEAL specialists and restore your laptop to full working order.

Useful information:
📦 Want to know more about shipping and return conditions? Click here
❓ Have additional questions? Check our FAQ
🔗 All parts for this model: Lenovo ThinkPad Yoga (convertible) spare parts
📘 Guide: WiFi and WWAN module in a ThinkPad - diagnostics and replacement