At MT Systems, we recently completed a full MacBook Pro A1398 repair and upgrade for a customer from Toronto, Ontario. The customer brought in their MacBook Pro Retina 15” (Model A1398), which had been running slowly and was no longer holding a charge. After a detailed inspection, we performed a complete service that included a new battery replacement, a high-speed SSD upgrade, and a clean installation of macOS.
The A1398 is one of Apple’s most popular MacBook Pro models, known for its powerful performance and beautiful Retina display. However, over time, its battery life can degrade, and older hard drives or operating systems may slow down the system. Our goal was to restore this MacBook to like-new performance — and that’s exactly what we achieved.

We installed a brand-new, high-quality battery designed specifically for the MacBook Pro A1398. The original battery was swollen and could barely hold a charge, which can be dangerous and reduce performance. After replacing it, we calibrated the battery to ensure proper power delivery and system recognition. The customer’s MacBook now delivers long, reliable battery life — just like when it was new.
Next, we upgraded the customer’s solid-state drive (SSD) to a faster and higher-capacity model. The old SSD was nearly full and operating slowly. The new drive dramatically improved speed, boot-up time, and file transfer performance. This upgrade gives the MacBook Pro A1398 a significant performance boost, extending its lifespan for years to come.
After the hardware upgrades, we performed a fresh macOS installation to ensure optimal stability and performance. Installing macOS on older models like the A1398 requires technical precision — we made sure to install the latest version fully compatible with this model, along with all updates and drivers. The system was then optimized for speed, security, and smooth operation.
The customer received their MacBook fully refreshed: faster, more reliable, and with upgraded hardware that will keep it running strong for a long time.
Customers across Toronto, Thornhill, Richmond Hill, and the GTA trust MT Systems because of our experience and professional approach. We offer:
Whether you need a MacBook Pro battery replacement, SSD upgrade, or a macOS reinstallation, we can help. Our technicians handle every repair with precision and care, ensuring you get the best value and performance from your Apple device.
If your MacBook Pro A1398 or any other Apple laptop is running slowly, not holding a charge, or showing performance issues, bring it to MT Systems. We’ll inspect it, recommend the best solution, and return it to you running like new.