800.642.3087 support@ctl.net
  • USB 3.0 Radio Frequency Interference Impact on 2.4 GHz Wireless Devices plus icon minus icon
  • Issue/Solution:If working more than 2 feet from the USB wireless connector, lag may occur.  To improve performance, use a USB extension to move the USB wireless connector away from the USB 3 periph... See more
  • Missing LTE on NL72 with R117 plus icon minus icon
  • There is a bug in R117 that resets or turns off the modem.  Reverting to 116 resets the firmware and allows Verizon.   R119 addresses the issue and starts rolling out Nov 14, 2023 - LINK The fix ... See more
  • Chromebook Repair Videos and Manuals plus icon minus icon
  •     Repair Videos: NL72: LINK NL72T: LINK NL72 - LTE module: LINK PX11E: LINK ---------------------------------------------------------------------------------------------------- Manuals: NL72 - Ma... See more
  • NL71 series (LI9B) and NL81 Series (LI9D) Battery Replacements plus icon minus icon
  • Full technical brief - LINK **NOTE** This is only needed when batteries fail in the field In late 2021/2022, the FSI image (Factory Shipping Image) was updated to accommodate a 2nd source battery w... See more
  • Connect to a mobile data network - LTE plus icon minus icon
  • Google Article: LINK Check if your Chromebook can connect to mobile data At the bottom right, select the time. Select Settings . In the "Network" section, look for a "Mobile data" option. If you s... See more
  • Keyboard Doesn't Work or Keys Not Working plus icon minus icon
  • Reasons for Keyboard Not Working Properly Keyboard has malfunctioned There is dirt, debris on/in the keyboard There has been a liquid spill on or in the keyboard The keyboard has been physically b... See more
  • Chromebook Parts and CTL Buy Back Program plus icon minus icon
  • A quick reminder that you can find all the different parts for your Chromebook fleet at http://ctl.net   Also, CTL has a buyback program for previous models.  Check out https://buyback.ctl.net/ to ... See more
  • Chromebook Is Not Charging or Does Not Turn On plus icon minus icon
  • Step 1: Perform a visual inspection If the Chromebook is not charging, check for damage to the charging port or for signs of oxidation. Check for a crack in the display or other signs of physical d... See more
  • CLEAN AND DISINFECT YOUR CHROMEBOOK plus icon minus icon
  • CDC Guidelines: LINK Recommended Items: Bleach-free disinfectant wipes or a solution of 70 percent rubbing alcohol and 30 percent distilled water. Do not use stronger solutions as this will damage... See more
  • Logitech Hangouts Meet Hardware Support plus icon minus icon
  • Logitech supports the Google Hangouts Meet Hardware package and is ready to take care of any issues.  Please contact them below and you'll be taken care of quickly.   www.logitech.com/vc-express-he... See more
  • Mainboard Repairs for Chromebooks plus icon minus icon
  • Repairing mainboards that are out of warranty can be done easily and responsibly through a specialty partner of CTL.  Repairing is also a significant cost savings compared to purchasing new.   CTL ... See more
  • Chromebook Recovery Utility plus icon minus icon
  • **Updated page with all recoveries.  Please look up the code name below or search for the CTL device name: LINK     **ChromeOS Blog about Stable, Beta, and Dev releases - LINK **ChromeOS Release S... See more
  • Linux on ChromeOS plus icon minus icon
  • Running Custom Containers (Linux) Under Chrome OS: LINK How to Linux Install and Usage by How To Geek - LINK What devices are or will be able to run Linux Containers: LINK and LINK Crostini Reddit ... See more
  • USB C Charging Information plus icon minus icon
  • A good read from MakeUseOf on USB C Charging: The Best USB-C Chargers: What’s Safe and What’s Dangerous? - LINK For the CTL Chromebooks, they can charge with a max voltage of 15V and 3 amps.  Any r... See more
  • Battery Care and Storage - Recommendations plus icon minus icon
  • Lithium Ion batteries are a great technology for laptops, Chromebooks, iPads, and many other tech gadgets. But there are storage situations that must be considered to ensure a long life.This applie... See more
  • *NEW* CTL 2-Way Shipping for RMAs in the First Year for Education Customers plus icon minus icon
  • For all EDU customers, CTL now includes 2-way shipping for in-warranty RMA issues in the first year.  This update includes any previous EDU orders in the last year.  CTL is excited to extend this t... See more
  • LCD Screen Cleaning plus icon minus icon
  • Link to full Document   Guidelines to properly CLEAN your LCD / LED screens   Recommended Cleaning Method: (Short instructions)   Turn your display off and allow it to cool.   Make sure your clot... See more
  • Common Chrome OS Problems and How to Troubleshoot Them plus icon minus icon
  • Common Chrome OS Problems and How to Troubleshoot Them   Chrome OS Is Very Slow If your Chromebook is a 2GB model, its light specs might not be able to keep up with your high usage and will run... See more
  • Find a Chromebook Serial Number plus icon minus icon
  • How to find Chromebook Serial Number: Press (Esc + refresh + power) to start the wipe process Press (Ctrl + D) on the recovery screen (yellow exclamation mark) Press (Enter) on the screen that st... See more
  • ChromeOS Manuals - Chromebook, Chromebox, and Tablets plus icon minus icon
  • CTL Complete list: Chromebox: CTL CBx2 - Link CTL CBx1 - Link   Tablet: CTL Tx1 - Link   Chromebooks: PX11E User Manual - Link NL81 Series - Link NL71 Series (L/CT/CT-L) - Link VX11 Manual - Link C... See more
  • Android Apps on CTL Chromebooks plus icon minus icon
  • The CTL NL61, NL61T, J5, J2, J4, J4+ and the X-Panel variations will all support Android Apps. Google hasn't released the exact date but it is expected in Q1 of 2017. This is the complete list of C... See more
  • Chromebook Wifi Troubleshooting plus icon minus icon
  • Google validates the design with all major network providers Always update to the latest Chrome OS version as Google provides improvements to speed, battery life, and connection services.   Steps... See more
  • Deprovision a Chrome Device plus icon minus icon
  • When a device is returned to CTL you must deprovision the device to allow for repairs to happen.  It is very likely, to service you as fast as possible, that a replacment device will be sent back t... See more
  • Demo Chromebook needs Enrollment Credentials plus icon minus icon
  • Sometimes due to the wipe and cleaning process the demo chromebooks are asking for credentials to re-enroll into the CTL domain. We have two domains.  Our demo devices are in transition to the educ... See more
  • ChromeOS Log File plus icon minus icon
  • Google Direct Link for more Info: LINK If you are having issues in ChromeOS a log file can be easily generated.  This can be used to help identify any issues. The steps: Open the Chrome Browser Ty... See more
  • Cosmetic and Other Damage Examples plus icon minus icon
  • Full Article - LINK When damage to your device is not the direct result of a manufacturing defect or failure, it may not be covered by the CTL Standard Limited Warranty (SLW) or Accidental Warranty... See more
  • Replacement Chromebook Screws plus icon minus icon
  • Some customers have reported loose or missing screws on various chromebooks.   CTL recommends checking devices occasionally to see if there are any loose hinges and/or missing screws.  If caught ea... See more
  • CTL Technical Bulletin 010923 NL7 series (LI9) Battery Replacements plus icon minus icon
  • CTL TECHNICAL BULLETIN 010923 Full technical brief - LINK RE: NL7 series (LI9) Battery Replacement Guidance  **NOTE** This is only needed when batteries fail in the field Summary: CTL analyzes and ... See more
  • USI Stylus Info plus icon minus icon
  • It's an active stylus that supports the Universal Stylus Initiative (USI) standard, effectively guaranteeing one thing: it’ll work out of the box on a number of recent Chromebooks — no pairing requ... See more
  • Troubleshooting Hardware Issues Using Crosh Diagnostics plus icon minus icon
  • The Chrome operating system includes a shell environment called Chrome Shell (crosh). Crosh includes several diagnostic tests that can be used on all Chromebooks and Chromeboxes without enabling ... See more