Fix Lenovo Yoga C940 Laptop Keyboard and Trackpad Failure

@gotucat

Hi, I reviewed the project and understand that both Lenovo Yoga C940 laptops lose their built-in keyboard, touchpad, and on-screen touch keyboard when Windows finishes loading. I can remotely diagnose whether the cause is Windows drivers, HID services, tablet-mode settings, or Windows corruption on one machine. I’ll use Troubleshooting and System Analysis to inspect Windows updates, device status, HID services, keyboard and touchpad settings, tablet-mode flags, and relevant driver packages through secure remote access. After restoring normal operation, I’ll provide clear Technical Support notes with the exact steps and recurrence-prevention guidance for the second laptop. I’ll keep the session focused because your time at the laptop is limited, while maintaining clean documentation and responsive communication. Let’s discuss here now.

@krishmaqvan

With over a decade of experience in the Information Technology field, I believe I am more than qualified to tackle your laptop issue. My skills extend from troubleshooting servers, switches, routers and all IT related devices to fixing Microsoft Windows and Linux configurations. I've got a wealth of knowledge under my belt, including being certified by Cisco and RedHat. Pair this with my expertise with remote desktop programs like AnyDesk and I am certain we will be able to solve this problem within your budget. My troubleshooting methodology involves meticulous examination, ensuring no stone is left unturned in the search for the root cause. Given your suspicions, I'll make a point to dig into every keyboard/trackpad setting inside Windows along with a thorough OS update assessment. Additionally, my experience documentating solutions will prove valuable as you face similar problems on your other laptop. Ultimately, selecting me would guarantee an efficient and effective solution to get your Lenovo Yoga C940 back up-and-running as it should be. Let's leverage my standing as a top-rated freelancer by preferred teams and my proven track record of managing complex technical issues to resolve what appears to be a digital rather than physical failure.

@chigomezgob

​I can jump on via AnyDesk and resolve this for you within your $60 budget. My first step will be targeting the sensor services and fixing the filter drivers in Device Manager, such as replacing the corrupted I2C HID driver or toggling the Yoga mode flags. ​Once the keyboard and touchpad are responding normally on the primary laptop, I will send you clear, simple notes detailing the fix and how to lock down Windows Updates so it does not revert. ​Send over your AnyDesk ID whenever you are ready, and I will get straight to work without taking up much of your time.

@Microlent

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in System Analysis As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen

@mikhailj89

Welcome! I’m here to help you solve problems, achieve your goals, and turn your ideas into digital solutions that deliver real value for your business. I understand the frustration of dealing with unresponsive keyboards and touchpads, especially after your troubleshooting efforts. My approach will focus on quickly diagnosing the issue, whether it’s a driver conflict, HID service problem, or Windows setting. I have experience with remote troubleshooting and can connect via AnyDesk to effectively restore functionality to your Lenovo Yoga C940. I will provide clear, step-by-step documentation of the process to ensure you can replicate the fix on your other device. With a commitment to clear communication and a friendly, professional demeanor, I’m ready to help you move forward. If this sounds good to you, let’s set up the remote session and get started!

@winkeudo

As someone who has spent years in the IT world, I can confidently say that troubleshooting a computer is my strong suit. In your case, I believe your Lenovo Yoga C940's keyboard and touchpad issues cannot be solved by an ordinary technician. You need someone with a sharp eye for detail - one who is capable of distinguishing between physical failures and software glitches. This is where I come in: not only can I analyze the issues remotely via AnyDesk or any other secure tool, but I'm also skilled in identifying and fixing problems related to Windows drivers, HID services, or tablet-mode flags among others. In addition to my diverse IT background and strong technical support skills, I have a computer science degree that gives me a solid knowledge of system structures and operations. This allows me to perform comprehensive diagnostic analyses on your laptops, documenting every step taken during the process. My commitment to clear communication means you'll have no trouble understanding those documented steps when it comes time to replicate my process on your second machine. Finally, I understand the value of both your time and money. With me as your technician, your capped budget of $50 will not be a problem – quality work within set constraints is my specialty. So why not move forward? Let’s set up a remote session where we can diagnose and restore the full functionality of the built-in keyboard and touchpad on your laptops, ensuring you can fully utilize your equipment.

@bojans9

Posso diagnosticare rapidamente perché keyboard e trackpad del Lenovo Yoga C940 smettono di funzionare appena Windows carica, e ripristinare il funzionamento senza interventi hardware. Ho esperienza con problemi legati a driver HID, servizi Input, conflitti Modern Standby, modalità tablet bloccata, e corruzioni nei pacchetti Lenovo/Intel. Durante la sessione remota (AnyDesk o altro), eseguirò: • Verifica servizi HID, I/O e Modern Standby • Pulizia driver e reinstallazione pacchetti Lenovo/Intel corretti • Controllo flag tablet‑mode, firmware e impostazioni Windows • Test immediato del funzionamento dopo reboot • Documentazione chiara dei passaggi per replicare la soluzione sul secondo laptop Obiettivo: tastiera e trackpad funzionanti nativamente in Windows, senza periferiche esterne, più istruzioni per evitare che il problema ritorni. Il budget da 50 USD è ok e posso iniziare subito.

@jyoashworld

Hi there, Since your built-in keyboard and touchpad work in the BIOS, the hardware is completely fine. On the Lenovo Yoga C940 series, this specific issue is almost always caused by corrupt drivers or the Lenovo Mode Control (YMC) service falsely reporting a 360-degree flip, which prompts Windows to disable physical input devices. I accept your $50 fixed budget and can handle this completely hands-off so you don't need to sit at the computer during the session. How We'll Get This Fixed: Quick Connect: I can remote into device using TeamViewer or Quick Assist, and you're free to step away. Driver & Service Repair: Repair/reinstall the drivers that route input signals to Windows. Re-align the Lenovo Mode Control and sensor filter services to force the system out of stuck tablet mode. Reset corrupt Human Interface Device (HID) class filters in Device Manager. Prevention Step: Lock down the working OEM drivers via policy settings to prevent Windows Update from replacing them in the future. Handoff & Documentation: Test full operation and send you a simple, step-by-step SOP so you can fix the second machine in 10 minutes. Proposal Summary: Fixed Price: $50.00 Turnaround: 1 – 2 hours

@ortizsergio726

Hello, I can work within your $50 total budget and start with a focused remote diagnosis rather than reinstalling Windows or making unnecessary changes. My background includes hands-on notebook repair, Windows troubleshooting, driver installation/recovery and hardware/software diagnostics. Since the keyboard and touchpad are available before Windows loads, I would investigate the Windows-side input chain first, including HID/I2C devices and drivers, Lenovo/Intel components, related services, power management and Yoga/tablet-mode detection. I would also verify whether Windows corruption or an update is contributing to the issue. Before any change requiring a restart, I will make sure remote access can reconnect and that we have a recovery path available. I will work on one laptop and provide clear step-by-step documentation of the successful procedure so it can be reproduced on the second machine, including recurrence-prevention steps where applicable. If testing points to firmware or hardware instead, I will document that clearly rather than claiming a software fix. I can start immediately. Regards, Sergio