on-site diagnosis
repair warranty
most jobs scheduled
all Shanghai
We come at a time that suits you, and common faults are fixed on the spot

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 nowMost jobs in Caojiadu can be scheduled the same day, with our technician bringing full tools and parts
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.
On-site diagnosis is free; we only start after you approve the quote.
Diagnose step by step, locate first, then quote
Dusty or worn fan bearings — clean it or replace the fan.
Clean redundant files, plan expansion, add an SSD if needed.
Check permissions, dependencies and OS version, install and verify compatibility.
Check the port, cable and GPU output one by one.
On-site diagnosis is free; the final price follows the itemized quote after diagnosis, and you confirm before we repair
| Item | Price range | Notes |
|---|---|---|
| OS reinstall + data migration | From RMB 150 | Includes backup, migration and restore |
| Driver & software install | From RMB 80 | Includes driver matching and office software setup |
| Slowdown tuning & cleanup | From RMB 80 | Startup, background and system junk cleanup |
| Partition / disk expansion | From RMB 80 | Includes partition planning and boot repair |
| Dual boot install | From RMB 150 | Includes partitioning and boot config |
| System fault repair | From RMB 100 | Blue screen, boot and system file repair |
From the first call to acceptance and payment, in a few steps
Pay only when satisfied; 90-day repair warranty
Tell us the brand, age and where it gets stuck; we call back within 30 minutes
Check whether hardware is the issue and whether to repair or reinstall; diagnosis free
Back up desktop, documents and chat history, confirm before touching anything
From a single device to a whole office, all handled the same way

A consulting firms client working in West Nanjing Road 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 brand headquarters client in Daning 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.
What you most want to know about on-site service in Caojiadu
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.
Not necessarily. We diagnose first and repair where possible — many blue-screen, slowdown and boot issues are fixable, and we only suggest reinstall when repair won't do.
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.
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 Caojiadu, surrounding subdistricts and all of Jingan