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

Measure signal strength and interference point by point, map the dead zones, and deliver a plan and quote before any work.
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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.
Book nowMost jobs in Xujiahui can be scheduled the same day, with our technician bringing full tools and parts
You pay only after you're satisfied; repairs carry a 90-day warranty.
We can come after hours or on weekends so we don't interrupt your work.
Business clients get repair invoices and itemized records for reimbursement.
Diagnose step by step, locate first, then quote
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.
Dusty or worn fan bearings — clean it or replace the fan.
On-site diagnosis is free; the final price follows the itemized quote after diagnosis, and you confirm before we repair
| Item | Price range | Notes |
|---|---|---|
| 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 |
| Toner refill | RMB 50–80/cartridge | Includes chip replacement and waste toner cleaning |
From the first call to acceptance and payment, in a few steps
You confirm before work; no mid-job price changes
AP point install, POE power and cable runs, minimizing disruption
Tune thresholds and channels, walk-test speeds on site, finish when you're satisfied
Go through accounts and password policy, 1-year workmanship warranty
From office towers, parks and chain stores to homes — bookable across the city

The client moved into a new office in West Bund, with devices and cabling to re-organize. We tested and numbered each device and delivered an equipment list at handover.

The same problem had been handled twice elsewhere without a fix. We re-diagnosed to find the real cause, and after repair it stayed stable for a week of observation.

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.
What you most want to know about on-site service in Xujiahui
Yes, billed monthly by machine count, including upkeep and emergency repairs.
AP deployment is RMB 150–400/AP, whole-home plans from RMB 800, depending on area, floors and whether cabling is needed. Survey is free — we give a point map and budget first.
As fast as 30 minutes if close and traffic is light, most jobs scheduled the same day. Survey and plans are free.
It depends. Existing network ports can be used directly; otherwise we run surface trunking or ceiling runs, kept as concealed as possible.
Not necessarily. A single router can't punch through many walls regardless of power; dead zones are usually solved by point distribution, and we'll explain during the survey.
We walk-test speeds in every room, check signal strength and handoff, and finish only when it meets the bar.
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 Xujiahui, surrounding subdistricts and all of Xuhui