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 Lingyun Road can be scheduled the same day, with our technician bringing full tools and parts
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.
Most jobs can be scheduled the same day; we confirm the time by phone.
Diagnose step by step, locate first, then quote
Deploy a remote access tunnel and open internal apps by permission.
Check internal addresses, ports and permissions, get apps reachable.
Check uplink bandwidth, routing and encryption settings, retest speed.
Configure remote access and read/write permissions for shared folders, map drive letters.
On-site diagnosis is free; the final price follows the itemized quote after diagnosis, and you confirm before we repair
| Item | Price range | Notes |
|---|---|---|
| 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 |
| Charging / standby circuit repair | RMB 300–800 | Includes power jack and charging chip |
From the first call to acceptance and payment, in a few steps
Restore files and test opening, printing and browsing on the spot
Go through the notes, 90-day system warranty
Tell us headcount, remote-work needs and current devices; we call back within 30 minutes
Look at broadband, router and network structure to pick the right approach
From a single device to a whole office, all handled the same way

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 faculties client working in Shanghai South Station 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.
What you most want to know about on-site service in Lingyun
No — accounts are revoked the same day per process, with auditable access records.
Yes. Read-only or read-write permissions by role.
Yes — add accounts and assign permissions per the process.
No response to the power button, liquid damage, black/distorted screen, won't charge, short circuits — these may all need it. Free on-site diagnosis locates the fault, then we tell you whether to repair components or replace the board.
Most component-level repairs are quoted far below board replacement. If it's genuinely unrepairable, we'll say so clearly and let you decide whether to replace or go another route.
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.
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 Lingyun Road, surrounding subdistricts and all of Xuhui