Owner & technician, Sorin Electronics · Grays, Essex

Sorin — Component-Level Laptop & Motherboard Repair Technician

Sorin runs Sorin Electronics, a component-level laptop and motherboard repair lab in Grays, Essex, and teaches board-level repair in public as Electronics Repair School on YouTube. He has spent 15+ years in micro-electronics. Repairs booked through this site are done by him personally, not handed to junior technicians.

The work is board-level. Rather than swap a whole motherboard, he finds the component that actually failed and replaces that — and it is the same process the channel has been filming, unedited, since February 2017.

490,000
YouTube subscribers
1,510
repair videos published
73.1M
total views on those videos
Feb 2017
publishing continuously since

Electronics Repair School channel figures, checked August 2026. Exact totals: 1,510 videos, 73,179,121 views.

What comes across the bench

Most of the work is diagnosis on boards other shops have already written off. The recurring jobs:

  • Dead, no power, no charging light. Tracing the 19V input rail through the series MOSFETs to whatever is pulling it down.
  • Plugged in, not charging. Charging IC, sense resistors, and the handshake between the adapter and the board.
  • Power but no display or no backlight. Separating a panel fault from a GPU, eDP or backlight-boost fault before anything gets replaced.
  • Corrupted or bricked BIOS. Reading, editing and reflashing the SPI chip, clearing ME regions, recovering machines that will not POST.
  • Liquid damage. Corrosion under BGA packages, shorted rails, and boards that need cleaning before they can even be measured.
  • Shorted power rails. Finding the one failed MOSFET or capacitor instead of quoting for a whole motherboard.

The machines — and the ones he turns away

Windows laptops, workstations and gaming machines, including HP, ASUS, Lenovo Legion, Razer and Alienware. He deliberately does not take MacBooks. Staying on PC hardware keeps the parts stock, the schematics and the board-view files pointed at the boards he actually works on, which is why the turnaround and the success rate hold up.

The equipment he works with

The lab in Grays is ESD-safe and set up specifically for component-level work — the same gear that appears in the videos.

  • Trinocular microscopes — micro-soldering 0201-size components and rebuilding torn pads on multi-layer boards.
  • Thermal imaging — finding a short on a 19V rail in seconds rather than hours.
  • Oscilloscopes and logic analyzers — reading the start-up sequence between BIOS, Super I/O and CPU when a board has power but no activity.
  • Professional soldering and hot-air stations — removing and refitting chips without cooking the PCB.
  • Industrial ultrasonic cleaning — stripping corrosion from under BGA chips after liquid damage.
  • BIOS / EEPROM programmers — talking to firmware chips directly to repair, clear and recover them.

Electronics Repair School

Sorin has published repair diagnostics on YouTube as Electronics Repair School since 19 February 2017. The channel now holds 1,510 videos, 490,000 subscribers and more than 73 million views. The videos are full-length fault-finding on real boards — measurements, dead ends and mistakes left in — and many of them are mail-in jobs that came through this lab.

The three most-watched:

He also teaches one-to-one motherboard repair lessons, runs a technicians’ forum and Discord, and supplies tested parts and tools through his eBay store. A selection of the videos is collected on the videos page.

Repairs he takes on

UK-wide mail-in from the Grays, Essex lab. Repairs are quoted after diagnosis, and standard repairs are no fix, no fee.

Articles written by Sorin

Write-ups of jobs from the bench and from the channel — the diagnosis, the measurements and the fix.

Sorin Electronics — laptop & appliance repair

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Contact us
Head Office

570 Upton Park,Birmingham, UK

Email

hello @gadgetfix.xom

Phone

+14 557 677 001

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