John Mwita sold secondhand phones in Kariakoo Market for three years, and on the side, fixed the phones that customers brought back with problems. He earned TSh 600,000–800,000 per month from repairs — informal, undocumented, no warranty.
One day a customer from Masaki — Dar es Salaam's wealthy diplomatic and business district — brought in a Samsung Galaxy S24 Ultra that a Kariakoo shop had damaged. He was looking for someone he could trust.
"I fixed his phone perfectly," John says. "He paid me TSh 120,000 without negotiating. That was more than my weekly income from Kariakoo. For one repair. In one hour."
He understood immediately: the skill was the same. The customer was different. The market was different.
The Move to Msasani
In 2024, John opened a shop in Msasani Peninsula — Dar es Salaam's professional and diplomatic quarter. Investment: TSh 2,000,000.
His first act: setting up RepairCoreX on the free plan.
"Msasani customers — embassy staff, NGO workers, businesspeople, expats — are used to professional service in every part of their lives. I wanted to match that standard from day one."
The System That Built His Reputation
Every device photographed on intake. Every repair documented with detailed notes. Every customer updated via WhatsApp at each stage. Every invoice professional and itemised.
"In Msasani, reputation is everything," he says. "A negative experience spreads through the diplomatic community faster than you can imagine. A positive one spreads just as fast."
Within 90 days, John had more 5-star Google reviews than any repair shop in Dar es Salaam.
Month by Month
His first corporate account came in month 3: an Msasani-based NGO that sent all staff devices exclusively to John. This account added TSh 3,000,000–5,000,000 per month in reliable revenue.
His Life Today
John earns TSh 8,000,000–TSh 10,000,000 monthly net. His family in Mwanza, who saved for years to support his Dar es Salaam move, have been repaid and are planning their own business using his advice.
"Tanzania has so much talent and so few professional systems," he says. "RepairCoreX gave me the system. The talent was already there."
Anza leo. Start today. Tanzania is ready for you.