on-site diagnosis
repair warranty
most jobs scheduled
all Shanghai
We diagnose step by step on site, locate the real fault, then quote

Step-by-step diagnosis of power, motherboard, GPU and cooling, with on-site replacement of PSU, motherboard and thermal parts.
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Laser printer repair for all major brands — jams, feed issues, faint print, black lines and noise, with fuser and pick-up roller replacement on site.
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Read-only imaging before recovery to avoid further damage. Clicking drives are opened in a cleanroom.
Book nowMost jobs in Caojing Town can be scheduled the same day, with our technician bringing full tools and parts
Business clients get repair invoices and itemized records for reimbursement.
Most jobs can be scheduled the same day; we confirm the time by phone.
Common parts are carried in the van, so most faults are fixed on the spot.
Diagnose step by step, locate first, then quote
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 |
|---|---|---|
| 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 |
| Laser printer repair | RMB 80–200 | Jams / feed / faint print / black lines / noise |
| Inkjet printer repair | RMB 60–150 | Clogged head / broken lines / leaks / cartridge not detected |
From the first call to acceptance and payment, in a few steps
Pay only when satisfied; 90-day repair warranty
Common parts and consumables are carried in the van; most fixed on the spot
Tell us how it was lost and what you did; we call back within 30 minutes
No writes at all until we know the recoverable range
From office towers, parks and chain stores to homes — bookable across the city

The client needed to operate normally during the day, so we came after hours. Several staff worked in parallel and finished testing and cleanup before closing.

A chemical plants client working in Zhujing had devices failing and holding up progress. We visited by appointment and handled them in groups, restoring normal use the same day and logging the devices into a table.

A machining factories client in Tinglin had a device go down suddenly. We judged the fault direction by phone, and our technician brought matching parts and completed repair and testing the same day.
What you most want to know about on-site service in Caojing
Set up automatic local plus off-site backups — a few hundred RMB covers most risks.
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.
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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On-site in Caojing Town, surrounding subdistricts and all of Jinshan