10 October 2026Reballing a chip: step by step
Episode 10 of Logic board basics: reballing a BGA chip. Preparing the pads, cleaning, the right stencil, solder paste, heating and checking under the microscope.
10 October 2026Working with hot air: replacing parts without damage
Episode 9 of Logic board basics: flux, protecting the surroundings, temperature and airflow, preheating, and removing a part without ripping pads.
10 October 2026Water damage on a phone: what to do, and what not to do
Episode 8 of Logic board basics: what to do straight away after water damage, why rice doesn't help, and how a repairer inspects and cleans a corroded logic board.
10 October 2026Reading schematics and boardviews: finding your way on a logic board
Episode 7 of Logic board basics: schematic versus boardview, net names, component codes, diode values in the boardview and how to follow a line from source to chip.
10 October 2026The power circuit: inductor, buck converter and PMIC
Episode 6 of Logic board basics: how a buck converter turns almost 4 volts into less than 1 volt, how to recognise the inductor and what to measure when a voltage is missing.
10 October 2026Capacitors on a logic board: what they do and why they short
Episode 5 of Logic board basics: what a capacitor does, why ceramic capacitors short, how to find the faulty one and what to watch when replacing it.
10 October 2026Finding a short circuit on a logic board
Episode 4 of Logic board basics: how to find a short. Identify the line in diode mode, use the boardview, inject voltage safely and replace the part that heats up.
10 October 2026The charging port: measuring and repairing USB-C
Episode 3 of Logic board basics: why a phone stops charging, what VBUS, CC1/CC2 and D+/D− do, how to measure the port and when a part behind it has failed.
10 October 2026Measuring in diode mode: diode values on a logic board
Episode 2 of Logic board basics: how diode mode works, why the red probe goes to ground, which values are normal, what 0 and OL mean, and how to find a short.
10 October 2026Crystals on a logic board: what they do and how to measure them
Episode 1 of Logic board basics: what the crystal on a phone board does, where to find it in the schematic, how to measure it in diode mode and with an oscilloscope, and what to watch when replacing it.
15 September 2026A year of the EU energy label on phones: what actually changed for repairers
Since June 2025 every new phone carries an energy label with a repairability score. A year on: what it delivered at the bench, and what it did not.