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.
Book now
Measure signal strength and interference point by point, map the dead zones, and deliver a plan and quote before any work.
Book now
Step-by-step diagnosis of power, motherboard, GPU and cooling, with on-site replacement of PSU, motherboard and thermal parts.
Book nowMost jobs in Chedun Town 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
Repair with a boot disk, and rescue data first where possible.
Install a genuine OS to the new drive and migrate the old drive's data to use as a secondary disk.
Adjust partitions or clean system files to free space.
Check license status and re-activate/configure to your situation.
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 |
| On-site diagnosis | Free | First see if it can be fixed, then decide on reinstall |
| OS reinstall (standard) | From RMB 100 | Includes genuine OS, drivers and common software |
| OS reinstall + data migration | From RMB 150 | Includes backup, migration and restore |
From the first call to acceptance and payment, in a few steps
Tell us the model and symptoms; we call back within 30 minutes
We arrange a time slot that suits you
Pinpoint the real fault on site
You confirm before we repair; no mid-job price changes
From a single device to a whole office, all handled the same way

The client moved into a new office in Sijing, 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 Chedun
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.
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.
For anything involving storage, we back up or image it first. For recovery, we assess the success rate and confirm the cost before starting.
As fast as 30 minutes if close and traffic is light; most jobs scheduled the same day.
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
Long-press to scan, or copy the ID to add us
On-site in Chedun Town, surrounding subdistricts and all of Songjiang