Won't power on, blue screens, freezes, random shutdowns — we diagnose on-site first, explain the fault and the price before touching anything, and you only pay once it's fixed. Adding RAM or an SSD to an older machine is often cheaper than buying new.
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on-site diagnosis
repair warranty
all Shanghai
Repairs, maintenance, upgrades and setup — most Computer Repair work can be handled on site
Step-by-step diagnosis of power, motherboard, GPU and cooling, with on-site replacement of PSU, motherboard and thermal parts.
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Do it once before summer to prevent overheating shutdowns and fan noise. Recommended yearly, RMB 80–150.
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The most cost-effective way to speed up an old machine. Most models can be upgraded on the spot; parts can be sourced or brought by you.
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We back up your files first and reinstall your usual software. Blue screens, freezes and slow boots are usually fixed in one visit.
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Recovery for deleted, formatted or clicking drives, plus regular backup plans tailored to your needs.
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Builds matched to your use case, with OS, drivers and software installed and data migrated from the old machine.
Book nowWe diagnose step by step on site, locate the real fault, then quote
Step-by-step checks of power supply, motherboard power, RAM seating and boot circuit.
Memory testing, drive health check, driver repair and thermal inspection.
Drive health check, startup cleanup, plus RAM and SSD upgrade advice.
Check the GPU, video cable, ports and display settings one by one.
Power supply testing and replacement, plus airflow cleaning.
Front-panel header, motherboard ports and driver checks.
Stop powering it on immediately; assess recoverability before proceeding.
Power off, dry out, and clean/repair motherboard corrosion.
Internal cleaning, thermal paste replacement and better case airflow.
On-site diagnosis is free; the final price follows the itemized quote after diagnosis, and you confirm before we repair
| Item | Price range | Notes |
|---|---|---|
| On-site diagnosis | Free | No charge if not repaired |
| Dust cleaning & maintenance | RMB 80–150 | Includes internal cleaning and thermal paste |
| OS reinstall / optimization | RMB 100–150 | Includes drivers and common software |
| Hardware upgrade (RAM / SSD) | RMB 50–100 install | Parts can be sourced or brought by you |
| PSU replacement | RMB 150–400 | Depends on wattage and brand |
| Motherboard chip-level repair | RMB 300–800 | Power, short circuit, liquid damage |
| GPU repair / replacement | RMB 200–800 | Depends on model |
| Drive replacement + migration | RMB 200–600 | Includes system and data migration |
| Data recovery | RMB 500–2000 | Success rate assessed first, cost confirmed before recovery |
Six steps from the first call to acceptance and payment
Tell us the model and symptoms; we call back within 30 minutes
We arrange a time slot that suits you
Pinpoint the real fault on site
You confirm before we repair; no mid-job price changes
Common parts are carried in the van; most faults fixed on the spot
Pay only when satisfied; 90-day repair warranty
From office towers, parks and chain stores to homes — bookable across the city
The machine wouldn't power on before market open. We diagnosed a PSU and motherboard power fault, replaced the parts and restored it with all trading data intact.
We visited in batches, cleaned dust, replaced thermal paste and added RAM across the fleet, noticeably cutting build and boot times.
Screen went black mid-render. We traced it to an aging GPU power module, replaced it and passed extended stress testing.
30 workstations were replaced; we migrated dev environments and project files one by one so the team could work the same day.
The drive started clicking; we stopped powering it, made a full image with professional tools and recovered production parameters and drawings.
We set up an asset ledger, visited each term for inspection and maintenance, and kept the lab running all year with no downtime.
What you most want to know about on-site Computer Repair
Most faults can be fixed on-site — our technician brings tools and common parts. If specialist equipment is needed, we'll explain and agree on a time.
As fast as 30 minutes if close and traffic is light. Most jobs are scheduled the same day; we confirm the exact time by phone.
On-site diagnosis is free. We give you a quote after diagnosis and only start once you confirm; if it can't be fixed for technical reasons, there's no charge.
Dust cleaning is generally RMB 80–150, including internal cleaning, fan cleaning and thermal paste. Recommended yearly, ideally before summer.
Most of the time, yes. Adding RAM or an SSD is the cheapest speed boost — install is usually RMB 50–100, parts can be sourced or brought by you, and done on the spot.
For anything involving storage, we back up or image it first. For recovery, we assess the success rate and confirm the cost before starting.
Describe the device and the symptoms; our technician brings the right tools and common parts. Diagnose first, quote after, and repair only once you approve.
WeChat ID: 17887942669
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