on-site diagnosis
repair warranty
most jobs scheduled
all Shanghai
We diagnose step by step on site, locate the real fault, then quote
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.
Book nowMost jobs in Kangjian New Village can be scheduled the same day, with our technician bringing full tools and parts
On-site diagnosis is free; we only start after you approve the quote.
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.
Diagnose step by step, locate first, then quote
Fully back up and migrate first, and confirm everything's there before starting.
Survey the dead zone, add an AP or move the point — don't just crank up power.
Tune roaming thresholds and channels so devices switch to the nearest AP.
Deploy APs per floor with a wired backhaul, not wireless repeaters.
On-site diagnosis is free; the final price follows the itemized quote after diagnosis, and you confirm before we repair
| Item | Price range | Notes |
|---|---|---|
| Dual boot install | From RMB 150 | Includes partitioning and boot config |
| System fault repair | From RMB 100 | Blue screen, boot and system file repair |
| SSD upgrade + OS install | From RMB 150 (excl. hardware) | Includes drive install, OS and data migration |
| Signal survey & plan | Free | On-site signal test + point planning + budget |
| AP deployment & tuning | RMB 150–400/AP | Includes point install, POE power and channel tuning |
| Roaming optimization | From RMB 200 | Includes threshold/channel tuning and on-site walk test |
From the first call to acceptance and payment, in a few steps
Common parts carried in the van; rework-station jobs taken back with photo documentation
Power aging and stress tests to confirm stability before handover
Pay only when satisfied; 90-day repair warranty
Tell us the brand, age and where it gets stuck; we call back within 30 minutes
From office towers, parks and chain stores to homes — bookable across the city
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 Tianlin, 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.
What you most want to know about on-site service in Kangjian
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.
Standard reinstall from RMB 100, or RMB 150 with data migration. SSD and dual-boot are extra; on-site diagnosis comes first and is free, and you confirm the quote before we start.
We fully back up and migrate first and only start once your files are confirmed safe. Old-device data is securely cleaned before disposal.
Yes. Office software, industry software and printer drivers are set up the way you used them, tested before we leave.
We install a genuine OS. Licensing is handled to your machine's situation, and we explain the current state when done.
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 Kangjian New Village, surrounding subdistricts and all of Xuhui
