John CoteloRésumé
Selected work

Technical troubleshooting

Computer Repair & Diagnostics

Methodical diagnosis and repair of more than 40 computer systems, followed by repeatable testing before resale.

Role
Founder and Operator
Timeline
June 2023 - Present
Type
Independent technical business

Problem

Find uncertain hardware and software faults, make cost-aware repair decisions, and return reliable computers to the market.

Constraint

Each system arrived with different symptoms, history, component condition, and repair economics.

What I did

  • Diagnosed faults, repaired or upgraded components, and prepared systems for resale.
  • Applied repeatable testing before returning each computer to the market.
  • Explained technical specifications in terms customers could use.

Result

  • Restored more than 40 computers.

Tools

Diagnostics · Hardware repair · Testing · Customer communication