Microsoldering & Motherboard Repairs

Component-level motherboard repairs when replacing parts isn’t the answer. ‘Unrepairable’ usually means nobody looked under a microscope. We do.

Fixfactor technician diagnosing a laptop motherboard under a microscope

The Parts We Replace Are This Small

The smallest part we replace is a 0201 resistor. Under the microscope at 45×, it looks about as wide as a £2 coin.

  1. Grain of rice 6 mm
  2. Sesame seed 3 mm
  3. 0402 resistor 1 mm
  4. 0201 resistor 0.6 mm
  5. BGA solder ball 0.3 mm
All five drawn to the same scale.
Close macro of a laptop mainboard: power inductors, capacitors, integrated circuits and solder pads filling the frame.
Chips, pads and passives on a laptop mainboard, photographed at the bench. The parts we replace sit between these.

Why Repair the Motherboard?

When the manufacturer quotes a new board, we repair the component that failed.

Usually One Failed Part

A board that seems dead has usually lost one small component. We find it under the microscope and replace that part, not the board.

Your Files Stay on the Board

On most phones and recent laptops the storage is soldered to the board, so a new board comes with empty storage. Repairing yours keeps your files where they are. If the files matter more than the device, start with data recovery.

A Fraction of the Cost

You pay for one part and the time to fit it, not for a new board.

Less Electronic Waste

Your board stays in your device instead of the scrap bin, and no new one has to be made and shipped.

Motherboard Components We Repair

Choose a part to see what fails there and how we repair it.

Where a laptop logic board fails A MacBook Pro logic board seen from above and stood upright, with the eight areas we repair marked and the connections between them drawn as traces: the USB-C ports, power management, the processor and chipset, liquid damage at the keyboard connector, the firmware chip next to the security chip, graphics, memory and storage, and the power regulation stage.
Removing a power management IC from a laptop motherboard with hot air

Power Management

Every power rail on the board starts at these chips. When one fails, nothing switches on - and microsoldering is the only way to replace it.

What We Work On

  • CD3217 (MacBook USB-C) - won’t charge after a wrong adapter
  • Tristar / Hydra (iPhone) - bootloop, no charging detection
  • ISL9239 (laptop charging) - battery not recognised
  • TPS51980A (power delivery) - random shutdowns
BGA component removal from an Asus laptop motherboard

Processor & Chipset

Heat cycles crack solder joints under processors. We lift the chip, put new solder balls on it and fit it back.

What We Work On

  • Intel PCH - platform controller hub failures
  • AMD chipsets - system instability issues
  • Apple T2 - security chip repair and restoration

How We Repair It

  1. Thermal profiling and preheating
  2. Chip removal under controlled heat
  3. Old solder cleaning and pad preparation
  4. Stencil alignment and solder paste application
  5. Ball formation and chip replacement
  6. Microscope inspection and functional testing

Worth knowing first. Reballing or replacing a processor or chipset takes four to five hours at the bench and does not always succeed. On an older machine that can cost more than the machine is worth, and the assessment tells you so before any work starts.

Phone motherboard held over a repair mat during memory chip work

Memory & Storage

From soldered RAM to phone storage chips - we repair, replace and upgrade them on the board.

What We Work On

  • LPDDR4/5 RAM - MacBook and ultrabook memory repair
  • eMMC / UFS - phone storage replacement
  • SSD controller - data recovery and repair
  • NAND flash - direct chip transplant
  • RAM / storage upgrades - soldered memory and storage capacity upgrades

It depends on the part. Soldered RAM and storage can be replaced or upgraded when the chips exist: new for common configurations, from our donor board library for rare ones. Availability sets the price, and the quote tells you before any work starts.

Motherboard prepared for BGA GPU replacement

Graphics Chip

Graphics chips run hot, and years of heat crack the solder underneath. We restore the contact and rebuild the cooling.

What We Work On

  • Gaming laptop GPUs - dedicated NVIDIA and AMD chips
  • MacBook dGPU - AMD Radeon Pro series
  • Desktop cards - high-end GPU revival
  • Thermal optimisation - liquid metal and full repaste

What Overheating Actually Does

  1. Heat builds up - a poor solder contact or a tired heat path traps it against the chip.
  2. Performance is cut - the chip throttles itself to bring the temperature back down, so the machine stutters.
  3. It shuts down - if throttling is not enough, the machine powers off to protect the chip.

Worth knowing first. Reballing or replacing a graphics chip takes four to five hours at the bench and does not always succeed. On an older laptop that can cost more than the laptop is worth, and the assessment tells you so before any work starts.

Close look at corrosion on a liquid-damaged motherboard

Liquid Damage

Water, coffee, wine - what decides the outcome is how soon it reaches us. Learn more about our liquid damage repair service.

How We Repair It

  1. Emergency teardown - complete disassembly to stop the damage spreading
  2. Ultrasonic cleaning - remove all contamination
  3. Microscopic inspection - identify corroded components
  4. Microsoldering repair - replace what corrosion destroyed
  5. Protective coating - guard against future damage

Timing matters. Brought in within the first couple of days, most liquid-damaged boards are recoverable. After a week, corrosion has usually spread and the odds drop sharply - so don’t wait, and don’t power it on.

Laptop motherboard port inspection under a microscope

Ports & Connectors

Ripped charging ports, damaged display connectors - we rebuild them from PCB level up.

What We Work On

  • USB-C / Thunderbolt - full trace reconstruction
  • HDMI / DisplayPort - pin-level repair
  • Audio jacks - 3.5mm port replacement
  • FPC connectors - display and keyboard ribbons

Beyond simple replacement. When ports are torn from boards, we rebuild PCB traces, recreate pad connections, and reinforce mounting points so the repair lasts.

Technician using a microscope for a microsoldering job

Firmware & BIOS

Failed updates, corrupted firmware, forgotten passwords - we restore boot capability.

What We Work On

  • BIOS recovery - failed update restoration
  • ME region repair - Intel Management Engine
  • Password removal - BIOS/UEFI unlock for verified owners
  • Chip programming - direct SPI flash

Professional tools. Dedicated programmers, SOIC clips, and custom firmware extraction - read, repair, and rewrite at chip level.

Laptop motherboard diagnostics with a Fluke multimeter

Capacitors & MOSFETs

One blown capacitor or MOSFET can make the whole machine unstable. We replace that part, not the board.

What We Work On

  • Blown capacitors - polymer and ceramic replacement
  • MOSFETs - power stage failures
  • Voltage regulators - multi-phase VRM
  • Inductors - coil whine solutions

What Happens to Your Board

  1. It Reaches the Bench

    Walk into Wimbledon - or book a slot, or post it. Boards come and go by courier every week.

  2. The Board Is Assessed

    Opened, inspected under the microscope, measured stage by stage. £39, or £49 if someone has already been inside. One to three working days.

  3. You Get the Price, and You Decide

    Which part failed, what it costs, and whether we think it is worth doing. Nothing starts until you say yes - and the assessment fee comes off the repair.

  4. The Repair Is Done

    Under the microscope, hot air or iron depending on the part. Two to four hours of bench time.

  5. It Is Tested Before It Leaves

    Inspected again, then run under load and checked on the fault that brought it in.

  6. It Goes Back to You

    With a six-month warranty on the work.

If the board cannot be saved, you hear it at stage three, not after the money is spent - and we can usually still get the data off. See data recovery.

The Stacked-Board Challenge

Since the iPhone X, most iPhones are built on two boards soldered face to face; only the XR and SE kept a single board. Huawei’s flagships and Samsung’s Ultra and folding models are built the same way.

That makes board work on these phones slow and difficult. Parts between the two boards cannot be reached, or even measured, until the boards are separated. Separating them takes hours and can damage them, so any work that needs it costs from £500. On these phones we take on two kinds of work, and nothing else:

  • Cleaning and visible faultsLiquid damage and faults on the outer faces: a standard phone micro-soldering repair, with the six-month warranty.
  • Dead board, no visible causeWe do not repair the phone. We separate the boards only for data recovery, with no warranty on the handset. The assessment fee is credited towards the recovery and is not refunded if nothing can be recovered.
A stacked board from the side: the amber parts sit between the two boards.
Fixfactor technician working on a board under a stereo microscope

12 Years at the Microscope

What board-level repair takes - and what we have built to do it properly.

Professional Equipment

  • AmScope 7x-45x trinocular microscope
  • Jovy RE-8500 BGA rework station
  • FLIR thermal imaging camera
  • Rigol DS1054Z oscilloscope
  • JBC NASE-2C soldering station

Trained for Board Work

  • Board schematic analysis
  • Thermal and current-based fault tracing

Component Inventory

  • Common ICs and passives in stock
  • Donor board library
  • Genuine IC suppliers
  • Same-day parts sourcing when possible

Board-Level Repairs We See Most

A phone mainboard held over the repair mat, shield removed, during a board-level repair.

Phones

  • iPhone 14 Pro Max

    Went in a Drink, Then Stopped Charging

    Never powered up wet. Cleaned, then the corroded parts replaced on the board.

    Charging restored · storage untouched

  • Samsung Galaxy S22

    Boot Loop, With Everything Still on It

    Storage reached at board level, rather than wiping the phone and starting again.

    Contents recovered

  • Huawei Mate 10 Pro

    Charging Only Worked If You Held the Cable

    The port is soldered on, so it came off under the microscope. New battery while it was open.

    Charges normally · one visit

  • Google Pixel 7

    Nothing After a Spill

    Liquid had bridged the power section. Cleaned, then the rails traced stage by stage.

    Back in use

A BGA component being lifted from an Asus laptop mainboard during a board-level repair.

Laptops & 2-In-1s

  • MacBook Pro 13″

    Soup Went Into the Keyboard

    Clean first, then component-level repair everywhere the soup had reached.

    Board saved · storage untouched

  • Dell XPS 15 9575

    USB-C Ports Had Stopped Working

    Ports replaced on the board, instead of the whole new board this fault usually gets quoted.

    Original board kept

  • Asus ROG gaming laptop

    Random Black Screens That Nothing Explained

    The owner had ruled out RAM, battery, charger and paste. What was left was the board.

    Cause found

  • Surface Pro 9

    Posted in After a Spill, From Outside London

    Assessed before any power went near it, cleaned, then returned by courier.

    Returned · no visit needed

A mainboard prepared on the bench for a BGA graphics chip replacement.

Desktops & Consoles

  • Gaming desktop - Ryzen 7 / RTX 2070

    Powers Up, but Nothing Reaches the Screen

    Fans and lights ran, so not the power supply. Traced the failing stage before buying anything.

    Diagnosed before any parts were bought

  • Mini PC

    Would Not Turn On

    Everything sits on one board, so there is nothing to swap out and test. Diagnosed directly.

    Fault located

  • PlayStation 5

    No Power at All

    Nothing reaching the power rails. Traced under the microscope instead of replacing the board.

    Repaired, not replaced

  • Steam Deck

    Would Not Start After a Knock

    Impact travels through the board, not just the shell. Checked under magnification for cracked joints.

    Fault located

A meter probe on a mainboard, measuring a power rail during board diagnosis.

Drones & Drives

  • DJI Mini 3

    Camera Gimbal Stopped Holding Steady

    Gimbal faults usually sit in the control board, not the motors. Checked there first.

    Diagnosed without swapping the gimbal

  • Seagate portable drive

    Drive Stopped Spinning Up

    No power was reaching it, and the fault sat on its own small board. The sealed part stayed sealed.

    Powered up again

Recognise your device in any of these? Tell us what it is doing and we will tell you what the assessment involves. Get a Quote

Want the full story of a real job? Read how we rebuilt an HP Pavilion board after a MOSFET burnt into it, or repaired an HP Envy x360 when no replacement board existed. There are more in our repair case studies.

Motherboard Repair Questions

What people ask before a board goes on the bench.

How do I know if my device needs motherboard repair?

When the obvious part has already been replaced and the fault is still there, it is on the board. The signs we see most:

  • No response at all, on a battery you know is charged
  • Shuts down or restarts on its own
  • Still will not charge after the port or the battery was changed
  • Gets hot doing nothing
  • Somebody else has already told you it is unrepairable

You cannot tell from the outside which component failed, and neither can we - that is what the assessment is for. £39, or £49 if the device has been opened elsewhere, and it comes off the repair if you go ahead.

Do you work on all brands?

Yes - Apple, Samsung, Dell, HP, Lenovo, Asus, Acer, MSI, Microsoft, Google and the rest, across phones, laptops, tablets, desktops, consoles, drones and external drives.

Board-level work does not depend on the badge on the case. It depends on the components on the board and on whether the schematic and the replacement parts can be sourced, which is a question we answer during the assessment. If your device is unusual, send us a photograph of the board first and we will tell you whether it is work we take.

Can you fix an iPhone that is completely dead?

It depends on where the fault sits. If the cause is visible or reachable - liquid damage, a failed charging or audio IC, a damaged connector, a burnt capacitor - yes, that is routine board work and carries our standard warranty.

On the stacked-board models - iPhone X, XS, 11 and everything from the 12 onwards, except the XR and SE - a dead board with no visible cause is different: finding the fault means desoldering the two board layers apart, hours of work with real risk to the board. We do not sell that as a repair. We take it on as data recovery - realistic budget from £500, paid for your files rather than the phone, and if nothing can be recovered you pay nothing beyond the assessment fee.

Can you repair liquid-damaged devices?

Yes, and how quickly it reaches us matters more than how much liquid went in. Boards on the bench within the first day or two are usually recoverable; corrosion keeps spreading through tracks and pads for as long as the board is left.

The board is cleaned ultrasonically, the corroded components are replaced, and a protective coating goes back on before it is reassembled. Older liquid damage is often still worth assessing. More on the liquid damage page.

How long does a motherboard repair take?

Usually one to five working days from the moment we have the device, and sometimes longer.

The assessment is one to three of those days. The soldering itself is often only a few hours - the rest is the queue, parts that occasionally have to be ordered, and the testing, because a board that works for five minutes is not a repair. A straightforward power fault can be finished in a couple of days; a multi-rail short after liquid damage can take a week or more. You get a real timeframe with your quote and we agree it with you before anything starts. If the job is urgent, say so and it can be moved up the queue.

Is my data safe during repair?

We never delete anything deliberately and we do not open your files - but we cannot take responsibility for your data, and no repair shop honestly can.

Where the storage can be removed, it comes out before the board goes under the microscope and we test on a drive of our own, so yours is not in the machine while we work. Where it is soldered to the board - most phones, many recent laptops - it stays where it is and we work around it. There we have no control over it, and often no way of telling whether the data was still intact when the device arrived: a board fault is quite often the storage failing in the first place.

So back up while the device still powers on, if it does. And if the contents matter more than the device, say so before we start - that changes how we approach the board, and it may be a data recovery job rather than a repair.

What if the board cannot be repaired?

You pay the assessment fee and nothing else. No repair is started until you have approved a fixed price, so there is no bill for work you did not agree to.

We tell you what we found and why we are not going ahead - whether the damage is genuinely beyond recovery, or the repair would cost more than the device is worth. Both happen, and we say which one it is. A board that cannot be brought back can usually still be read, so the data is not automatically lost with it.

Do you provide a warranty?

Yes - six months on the work, and six to twelve months on any part we fit, depending on the supplier.

If the same fault comes back within that period we repair it again at no charge. It does not cover a new, unrelated fault, fresh physical damage, or liquid getting into the device after the repair. Full terms are on the warranty page.

One exception: board work done to recover data from a stacked phone board. There the deliverable is your files, not the handset, so the handset itself carries no warranty. You approve the work on that basis.

How Pricing Works

How the cost is built up, and when you get a firm price.

Cost Structure

Initial Assessment £39-49

Professional diagnostics: £39 standard, £49 if previously serviced elsewhere. Takes 1-3 working days. Non-refundable, but credited towards the total repair cost if you proceed.

Technical Labour £85/hour

Experienced microsoldering technicians. Most repairs take 2-4 hours. Stacked iPhone boards are the exception - they are taken on as data recovery, not hourly repair.

Components Cost +20%

Genuine parts from authorised suppliers, backed by our own stock and donor board library.

Warranty 6 months

6 months on labour; parts carry 6-12 months depending on the supplier. Same fault returns - we fix it free.

What Affects the Price

  • Fault complexity A blown capacitor is a quick job; a multi-rail short after liquid damage takes hours of tracing.
  • Component availability Common ICs are in stock; rare chips may need sourcing or a donor board.
  • Device access Some boards take minutes to reach, others need a full teardown before work can start.
  • Turnaround Standard service is the best value; rush service for critical repairs costs more.
Get a Quote

Need Motherboard Repair in London?

We find the fault first, then price the repair. Nothing starts until you have approved that price.