MSI Crosshair 15 - (R6E B12UGZ) Keyboard and Backlit Replacement - Thermal Paste Replacement

The bottom left keys on this MSI Crosshair 15 R6E stopped working. The owner needed the laptop for work and had one day to get it fixed. In this video we test every key, open the laptop, and find a bigger problem underneath: dried-out thermal paste on the GPU. Then we uncover a mismatch. The replacement keyboard ordered online had the wrong backlight model, so we carefully removed the original backlight, separated it from the old keyboard, and reassembled everything with fresh thermal paste. 🔧 What's covered: Testing the keyboard and identifying failed keys Opening the bottom lid and disconnecting the battery Removing the thermal bracket and cleaning the fans Replacing dried thermal paste on the CPU and GPU Removing the plastic film and cutting the keyboard locks Separating the backlight from the keyboard with heat Reassembly, cable reconnection, and final key test 🛠️ Tools & materials: Small screwdriver set 99% isopropyl alcohol Microfibre cloths and cotton buds Small portable vacuum Thermal pad (for heating the adhesive) Thermal paste ⏱️ Chapters: 0:00 Intro: Keys not working 0:06 Testing the keyboard 0:18 Unscrewing the bottom 0:39 Opening the bottom lid 1:16 Disconnecting the battery 1:34 Thermal bracket and dried paste 2:26 Removing the screen cable 2:41 Removing the motherboard 3:23 Disconnecting flex cables 4:11 Cleaning the housing 4:26 Peeling the keyboard film 5:33 Cutting the keyboard locks 6:50 The backlight mismatch 7:04 Removing the backlight 7:46 Heating the adhesive 8:55 Reassembling the keyboard 10:30 Replacing thermal paste 11:24 Cleaning the fans 11:45 Reconnecting cables 11:58 Mounting the motherboard 13:05 Reassembling the cooling 14:57 Battery and final check 15:12 Closing the lid 15:27 Final key test 📍 Tech Stop Unit A35a, South Entrance, New Horizon Mall, Balzac, AB Serving Airdrie, Calgary NE, and surrounding areas Board-level microsoldering repair specialists 📱 Follow us: Instagram: instagram.com/techstoprepairs TikTok: tiktok.com/@techstoprepairs Facebook: facebook.com/profile.php?id=61590270684531 ⚠️ Disclaimer: Always disconnect the battery before working inside a laptop. Keyboard flex cables and thermal paste are delicate, and improper handling can cause permanent damage. If you're not confident doing this yourself, bring it to a professional. #LaptopRepair #KeyboardReplacement #MSILaptop #ThermalPaste #TechStop #Calgary #Airdrie #MSI #GamingLaptop #TechRepair #ThermalPaste #PCRepair #LaptopCleaning #viral #fyp