How to use Borneo Schematics

1. Install the runtime before the app

Borneo Schematics renders its interface through Microsoft Edge WebView2. If that runtime is missing or older than version 149, the application installs perfectly and then closes a second after you launch it, with no error message. It looks like a broken download; it is not.

Install the official Borneo Runtime Installer first. It bundles WebView2, .NET Framework 4.8 and the Visual C++ redistributables in one pass. Reboot afterwards, even if it does not ask you to.

2. Install Borneo Schematics

Download the current full setup from our download page, which links to Borneo's own Mega, Google Drive and MediaFire mirrors. Before extracting, add the destination folder to your antivirus exclusions — repair tooling routinely trips heuristic scanners, and a half-quarantined install is far more annoying to diagnose than a blocked one.

Installing a newer build over an older one is fine. You do not need to uninstall first, and your licence is untouched.

3. Sign in with the activated account

Sign in using the exact Borneo username your licence was applied to. If you paid but see an unlicensed session, nine times out of ten you are signed in as a different account — not a failed activation.

A 1 User licence permits one signed-in session at a time. Signing in on a second machine ends the first session. If two benches need to work simultaneously, that is what the 2 Users licences are for.

4. Find the model

Search by model name or board number. Most devices give you a schematic diagram and a matching boardview; many also carry documented hardware repair solutions for their common failures. If a model is missing, check the official model support list — the library grows with each release.

5. Trace the fault instead of guessing

The workflow that saves the most time on a dead-board job:

• Start from the symptom — no charge, no backlight, no signal — and locate the relevant rail on the schematic.
• Follow that net through every component in the path, using the designators to jump to the boardview.
• Measure at the documented voltage and resistance points. A reading that disagrees with the reference is your fault, and you have narrowed a whole board down to one net.
• Check the known-fault notes for that model before desoldering anything. The part that usually fails is usually the part that failed.

Common problems

The app opens and closes immediately

WebView2. Install the runtime installer, reboot, retry. This is the single most common report.

"Session expired" on every login

Update to the newest build — a recent release specifically fixed this. See the update log.

Schematics will not open although I am signed in

Your licence has probably expired, or you are signed in on the wrong account. Check the expiry date in the portal before assuming it is a software fault.

It was working, now it will not start

Check your antivirus quarantine. An update to the scanner's definitions can retroactively quarantine files it previously allowed.