Borneo Schematics

Borneo Schematics — Professional Board View & Schematic Tool

5 min read

What is Borneo Schematics?

Borneo Schematics (borneo-schematics.com) is a professional board-view and schematic software designed for mobile phone hardware repair technicians. It provides detailed, searchable, multi-layer PCB views and electronic circuit diagrams that allow technicians to trace signals, identify components, measure expected voltages, and diagnose hardware faults at the board level.

Why Hardware Technicians Need Schematics

When a phone has a hardware fault — no power, no charging, no display, no network, water damage — software tools cannot help. The technician needs to:

Identify which circuit is failing (power management, baseband, display, charging, audio)
Trace the signal path from source to destination on the PCB
Measure voltages at key points to isolate the faulty component
Replace the defective IC, capacitor, resistor, or damaged trace

Without a schematic, this is guesswork. With Borneo Schematics, every step is guided by actual circuit data.

Core Features — Technical Detail

Feature	How It Works
Board View (PCB View)	Top-side and bottom-side PCB layouts showing exact component positions. Click any component to see its part number, pin connections, and connected nets. Zoom in to see BGA/QFN pads, capacitor values, resistor values. Toggle between top and bottom layers.
Schematic View	Full electronic circuit diagrams organized by functional block: PMIC (Power Management IC), Baseband/Modem, Application Processor, Display/Touch, Charging (USB/wireless), Audio Codec, Camera ISP, WiFi/BT, NFC, SIM interface. Shows every connection, voltage rail, capacitor, resistor, inductor, transistor, and diode in the circuit.
Signal Tracing	Click any net name or pin to highlight the complete signal path across PCB and schematic. For example: trace VBAT from battery connector through PMIC, to CPU power rail, through decoupling capacitors — identifying where a voltage drop or short occurs.
Component Search	Search by part number (e.g., "PM8150" for a Qualcomm PMIC), component type (capacitor, coil, resistor), or net name (VDD_CORE, VDDQ). Instantly locate the component on both PCB and schematic.
Diode Mode Values	Reference diode-mode measurements for key test points (used with a multimeter in diode mode to compare actual vs expected readings). Helps identify shorts — a reading of 000 instead of expected 450 indicates a short circuit on that power rail.
Knox Erase	Samsung Knox warranty bit reset at the hardware level — clears the 0x1 Knox flag that indicates device has been rooted or had an unofficial firmware flash. Useful after board repairs that trigger Knox.
Bitmap View	High-resolution photographic images of the actual PCB (not diagrams) — useful for identifying component markings, checking for visual damage, and comparing against the schematic layout.

Supported Phone Models

Borneo Schematics covers a wide range of phone models. Coverage is strongest for:

Samsung: Galaxy S24-S7, A55-A01, M54-M01, Note 20-Note 3, Z Fold/Flip series, Tab S/A series
Apple iPhone: iPhone 15 Pro Max through iPhone 6 (board view + schematic)
Xiaomi/Redmi/POCO: Major flagship and mid-range models
Huawei/Honor: P/Mate/Nova/Y series with Kirin chipsets
Oppo/Realme/OnePlus, Vivo, LG, Nokia

The database is continuously updated as new device teardowns and schematics become available.

Use Cases — Real Workshop Scenarios

No Power: Trace VBAT rail from battery connector through PMIC — check for short on any decoupling capacitor. Borneo shows exact cap locations + expected diode values.
No Charging: Trace USB VBUS through charging IC (e.g., SM5714, BQ25898) — check CC lines, check USB switch IC, verify charging PMIC output.
No Network: Trace RF signal path from antenna connector through RF switch, PA (Power Amplifier), to baseband modem. Check antenna tuner, duplexer, SAW/BAW filters.
No Display: Trace MIPI DSI data lanes from AP (Application Processor) through display connector. Check display PMIC voltage output (VCI, VDDI, VGH/VGL).

Subscription Model

Borneo Schematics uses a time-based subscription — no per-device charges. Once active, you have unlimited access to all schematics and board views in the database for the subscription duration. Plans range from short-term to annual.

View Borneo Schematics plans at Code-GSM

Official Resources

Website: borneo-schematics.com
Telegram: t.me/borneo_schematics

How to Use Borneo Schematics: Step-by-Step

Purchase a Borneo Schematics subscription from Code-GSM
Download and install the Borneo Schematics software
Log in with your credentials
Search for your device in the model database
Open the schematic: Full circuit diagram with labeled components loads
Switch views: Toggle between Schematic (circuit diagram) and Board View (physical PCB layout)
Search components: Use the search function to find specific ICs, capacitors, resistors by name or value
Trace signals: Click any net to highlight all connected components

Practical Tutorial: Finding a Short Circuit

Measure the main power rails on the board with multimeter in diode mode
Identify which rail shows a short (very low reading, close to 0.000)
Open the schematic in Borneo and search for that power rail name
The schematic shows every component connected to that rail
Inject voltage on the shorted rail with a bench power supply (limit current to 500mA)
Use a thermal camera or freeze spray to locate the hot component
Cross-reference the hot component location in Board View to identify and replace it

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