Live Online Style Video +Live Instructor + Official Course-Book + Hands-on Labs

Advance MAC troubleshooting


  1. Power Packed 18 Hours (Edited from 24 hours of Live Training)
  2. 6 months access to videos.
  3. Access via Laptop, Tab, Mobile, and Smart TV.
  4. Certificate of Completion.
  5. Official Course-Book
  6. 90+ Tests Questions (Qubits42)
You can also purchase an annual plan for USD 999. For one year, all Flexi Videos will be free for you. Buy Annual Plan

You will get access to Flexi Video within 30 minutes.

Flexi Video

USD 199

Official Course-Book Instructor Hand-outs





USD 199

100% Refund for Flexi Video (Course-Book is non-refundable) if user is not satisfied with the Video and seeks refund within 30 days of purchase.

Download Course Contents
  • a. Ports
  • i. USB-C
  • ii. USB
  • iii. Thunderbolt
  • iv. Compatibility, Devices
  • v. Port power consumption
  • b. Boot process
  • i. EUFI
  • Clover
  • Boot Camp
  • Fusion
  • Partitions
  • Clover
  • ii. Diagnostics
  • Verbose boot
  • Target disk mode
  • Recovery boot
  • Test/Diagnose mode
  • Other Boot options
  • iii. Target Disk Mode
  • Access Mac media on a non-bootable Mac
  • c. Diagnostics Tools
  • i. Console
  • Categories
  • How to read logs
  • How to search logs
  • What information is available
  • Export logs
  • ii. Disk Utility
  • Partitions
  • Permissions repair
  • Formats
  • a. Compatibility
  • External drives
  • iii. Terminal
  • fsck
  • Top
  • Hidden files
  • Screenshots
  • a. Format
  • b. Shadow on/off
  • c. Default location
  • d. Default name
  • Custom login message
  • Caffeinate
  • Other useful commands
  • a. User Data
  • Locations
  • Permissions
  • What to avoid deleting
  • UserID
  • FileVault
  • TimeMachine and other backup tools
  • b. Applications
  • Locations
  • PList locations
  • Troubleshooting applications
  • Installing software
  • Uninstalling software
  • c. Single User Mode
  • When to use
  • How to access
  • What to do
  • d. Services
  • What services are critical
  • Security
  • 1. FileVault
  • 2. Gatekeeper
  • 3. KeyChain Access
  • a. Local
  • b. iCloud
  • c. New KeyChains
  • e. File Systems
  • Native
  • Supported
  • Compatibility Limitations

Learn more about Koenig. Download Presentation Buy Other Flexi


Yes, you do. Flexi Videos do not include Course-Book or Labs.
Flexi video for the new version will be provided free of cost.
6 months from the date of delivery.
Videos can only be streamed and not downloaded.
We do not track the pass rate of Flexi students. However, we trust it will be lower than for Live Online.
You will be provided access to LET ( Learning Enhancement Tool), where you will get the links to access all your purchases.
Yes, contact us for corporate packages.
Yes, Course-Book and Lab are not included in the annual plan. All Flexi videos are included.
It is only for one user.
Yes, you can pay from this web page.
Presently, Flexi is only available in English.
Yes, the site is secure by utilizing Secure Sockets Layer (SSL) Technology. SSL technology enables the encryption of sensitive information during online transactions. We use the highest assurance SSL/TLS certificate, which ensures that no unauthorized person can get to your sensitive payment data over the web.
We use the best standards in Internet security. Any data retained is not shared with third parties.
It’s a unique subscription plan where customers can avail unlimited Flexi courses within a year.
The subscription plan is valid for 1 year from the date of purchase.
No, this is limited to one user and its non-transferable.

Feedbacks from Clients