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

Staff can securely reach the office network from anywhere, with role-based accounts.
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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.
Book nowMost jobs in Jiangning Road can be scheduled the same day, with our technician bringing full tools and parts
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.
You pay only after you're satisfied; repairs carry a 90-day warranty.
Diagnose step by step, locate first, then quote
Check startup items and drive health first — optimize if possible, reinstall otherwise.
Check RAM and disk usage, clear resident background apps, replace SSD if needed.
Remove bundled software and browser extensions, block pop-up sources.
Use error codes to locate driver or memory issues, repair before considering reinstall.
On-site diagnosis is free; the final price follows the itemized quote after diagnosis, and you confirm before we repair
| Item | Price range | Notes |
|---|---|---|
| Remote support | From RMB 200/visit | Config changes and troubleshooting |
| Annual maintenance | Negotiable | Inspection + emergency + usage Q&A |
| On-site diagnosis | Free | No charge if not repaired, fault point explained |
| Motherboard chip-level repair | RMB 300–800 | Component-level repair of power, boot and port circuits |
| BGA reball / rework | RMB 400–1200 | GPU core and bridge-chip dry joints |
| Liquid corrosion treatment | RMB 300–600 | Strip, clean, de-corrode and replace components |
From the first call to acceptance and payment, in a few steps
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
Genuine OS + full drivers, office software configured as needed
Restore files and test opening, printing and browsing on the spot
From a single device to a whole office, all handled the same way

A chain stores client in Jingan Temple 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 Jingan Temple, 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 Jiangning
Repair warranty is 90 days. Before handover we run power aging and stress tests, photograph before and after, and list replaced parts honestly on the invoice.
The sooner the better. Power off and don't keep powering it on; after stripping and de-corrosion most can be saved. Even with heavy board damage, drive data can usually be recovered separately.
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.
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 Jiangning Road, surrounding subdistricts and all of Jingan