Logic Board Repair
Precision microsoldering at component level
Microsoldering and board-level repairs
Microsoldering addresses faults directly on the logic board. It is used in cases where replacing a whole module or a standard spare part is not enough. Under the microscope, we look for damaged components, broken traces or faulty power rails and then recommend the next step based on the findings.
What we actually do
SMD component replacement
Replacing miniature resistors, capacitors, coils, and diodes under a microscope
Chip replacement
Desoldering and resoldering BGA and QFN chips using hot air and IR stations
Signal path repair
Reconnecting broken traces on the board using jumper wires
Power rail diagnostics
Measuring and locating shorts across individual power rails on the board
Corrosion repair
Cleaning and restoring damaged areas after liquid contact
Connector replacement
Resoldering damaged charging ports, FPC and other connectors on the board
Not every board is repairable in a technical or economical sense. After diagnostics, we will tell you honestly whether the repair makes sense and what to expect from it.
Typical cases for microsoldering
Laptop won't charge
Damaged charging circuit or USB-C controller
No sound
Damaged audio chip or broken traces on the board
Dark display
Faulty backlight circuit or broken traces
Device won't turn on
Damaged power circuits or power management
Overheating and shutdowns
Faulty temperature sensors or processor power circuits
After liquid contact
Corrosion and component damage on the logic board
How the repair works
Board diagnostics - microscope, voltage measurements, short detection
Identification of faulty components and recommended next steps
Ordering the required replacement parts
Precision replacement using soldering station
Testing and quality control of repair
Repair time: Usually 3–10 business days depending on repair complexity and parts availability.
Where do we source replacement parts?
Logic boards contain hundreds of chips and components of different types and values. Keeping them all in stock is not realistic - the most common ones we keep in stock, others we source from donor boards, and the rest we order from specialized suppliers.
Donor boards
Boards retired due to a different fault, from which we desolder working components. This gives us the most frequently needed parts on hand right away.
Specialized suppliers
Less common components are ordered from overseas suppliers, which may extend the repair time by days to weeks.
We will always keep you informed about the repair progress and any waiting time for parts.
Logic board repair FAQ
Does logic board repair always make sense?
Not always. After diagnostics, we tell you whether the repair is technically possible and whether it is worth it compared with replacement or another solution.
How long does microsoldering take?
Simpler repairs may be completed within a few days, while complex cases and waiting for parts can take longer. We keep you informed throughout.
Can you work on boards after liquid damage?
Yes, liquid damage is a common reason for board repair. We first need to assess corrosion and damage across individual power rails.
What if the board cannot be repaired?
After diagnostics, we explain where the problem is and what the chances are. If the repair does not make sense, we recommend an alternative and do not proceed without your approval.
Microsoldering in Brno
Board repairs are handled in our Brno workshop, where we have equipment for measurement, microscope work and component-level repair.
Related service steps
Board repairs often follow diagnostics or liquid damage work.
Having problems with your logic board?
We start with diagnostics and then tell you whether the repair makes sense, how demanding it will be and what it will cost.