on-site diagnosis
repair warranty
bookable
fastest arrival
No games: we tell you if it's fixable, and flag replacement parts upfront

Component-level repair instead of board replacement, stress-tested before handover.
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Install and activate a genuine OS, load all drivers in one pass, and configure office and common software to your habits.
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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.
Book nowFirst locate the real fault, then quote
We determine the position and test the result on site — cheaper than trial-and-error buying.
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.
On-site diagnosis is free; the final price follows the itemized quote after diagnosis, and you confirm before we repair
| Item | Price range | Notes |
|---|---|---|
| Roaming optimization | From RMB 200 | Includes threshold/channel tuning and on-site walk test |
| Whole-home WiFi plan | From RMB 800 | Includes survey, device selection and full tuning |
| Mesh tuning | From RMB 300 | Includes node placement and backhaul selection |
| Cable points | From RMB 80/point | Includes panel, module and label testing |
| Switch / POE config | From RMB 150 | Includes VLAN, rate limiting and port planning |
| Guest network & security | From RMB 200 | Includes isolation, rate limiting and password policy |
| Annual maintenance | Negotiable | Scheduled inspection + emergency response |
From the first call to acceptance and payment, in a few steps
You confirm before we repair; no mid-job price changes
Common parts are carried in the van; most faults fixed on the spot
Tell us the model, symptoms and any liquid exposure; we call back within 30 minutes
Circuit-level checks on site to locate the exact fault point
Component repair quoted where possible; board replacement explained clearly if needed
We do a lot of this type of work, so diagnosis and spares are well covered

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.

A university-town faculties client working in Sheshan 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 electronics manufacturers client in Songjiang Industrial Zone 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.

The client used to call only when something broke, and faults kept recurring. After asset records and scheduled inspections, the number of service calls dropped noticeably.

The client moved into a new office in Songjiang Industrial Zone, with devices and cabling to re-organize. We tested and numbered each device and delivered an equipment list at handover.
What you most want to know about on-site service in Songjiang
On-site fixes are done immediately; rework-station jobs usually take 1–3 working days, and we give an estimate when we take it on.
Yes. Judgment and diagnostic depth differ. An independent diagnosis costs nothing extra: component repair if possible, board replacement only if genuinely necessary.
On-site diagnosis is free; you approve the quote before any repair.
Anything involving storage is backed up or imaged first; suspect drives are assessed before work.
No charge if it can't be fixed for technical reasons, and we explain the situation and options.
Genuine or compatible parts per your choice, with price and warranty on the invoice.
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 across all 17 subdistricts of Songjiang