When a phone or MacBook has a board fault, two paths exist. The first is logic board repair: find the failed component and fix only that. The second is logic board replacement: swap the whole board. Both can be the right answer — but they have very different cost, data, and time profiles. This guide walks through the trade-offs without picking sides for you.
What "logic board" actually means
On Apple devices, the logic board (sometimes called the motherboard) is the main circuit board that carries the CPU, storage, power management, charging circuit, and most of the other ICs in the device. When something on that board fails — a power management IC, a charging IC, a connector, a fuse, a backlight component, or a section damaged by liquid — the device can stop powering on, charging, booting, or showing an image, even though the screen, the battery, and the charger are all fine.
Microsoldering & board-level repair
Microsoldering, board-level repair, NAND upgrades, and board-level data recovery, all in one place.
Path 1: Logic board repair
Logic board repair (also called board-level repair, microsoldering, or component-level repair) targets the actual failed component. A technician identifies the failure under a microscope, replaces or repairs just that part — an IC, a connector, a section corroded by liquid — and tests the board.
What this typically buys you:
- Lower cost than a full board swap on most devices and most faults
- Your original storage stays in place, which gives you the best chance of keeping your data
- Components paired to the original board (and any associated configuration) stay paired
Path 2: Logic board replacement
Board replacement swaps the whole logic board for a new one. The fault is gone because the entire assembly is new, but on modern Apple devices the new board comes with new storage, sometimes new paired components, and a new identity at the system level.
What this typically means:
- One of the most expensive repair paths Apple devices have
- On many models, the new board has new storage — your previous data needs to come from a backup
- Some paired components (Face ID, biometric sensors, certain peripherals) may need to be replaced or revalidated alongside the board
How to choose between them
Single component or system-wide damage?
If the diagnostic finds one failed IC or one corroded area, board repair usually wins. If the board has system-wide damage from a long-term liquid spill, severe physical impact, or multiple prior repair attempts, replacement may be the safer call.
Data first or device first?
If the data on the original board matters more than the device itself, repair is the safer bet because it preserves the original storage. If the goal is mainly "get a working device back as soon as possible" and you have a current backup, a board swap is sometimes faster overall.
Cost and warranty considerations
Costs vary by model and by what's wrong. We don't promise that board repair is always cheaper — it usually is, but every case needs a diagnostic. On warranty: third-party board repairs and replacements are not endorsed by Apple, so future Apple service on a modified board is not guaranteed. We explain that clearly before any work begins.
Not every board is repairable. Severe liquid damage, deep physical damage, and prior failed repair attempts can push a board past the point where microsoldering is safe — replacement may be the only option, or in some cases the device itself may not be worth the cost.
Where the diagnostic comes in
Both paths start with the same step: a microscope-based diagnostic that identifies the actual fault. From there, we can quote both options when relevant and let you decide. We'll tell you honestly when we think one path is clearly better than the other for your situation.
Request a board-level repair quote
Send us your device and symptoms — we'll diagnose and explain the realistic options.
Frequently asked questions
Is logic board repair always cheaper than replacement?
Usually, yes — but not always. Cost depends on the model, the specific fault, and parts availability. We diagnose first and quote the realistic option (or both options) before any work begins. We do not promise repair is always cheaper than replacement.
Will I lose my data with a board replacement?
On modern Apple devices, swapping the logic board usually means the storage on the original board is no longer in the device. Your data needs to come from a backup. Board repair preserves the original storage, which is why it's often the better path when data matters.
Do you do both repair and replacement?
We focus on board-level repair (microsoldering). For some cases the right answer is a board replacement or a full device replacement, and we'll tell you that honestly so you can make an informed call.