Repair Setup Guide
JCID vs ZXW vs Wuxinji
Schematic Tools Compared.
Choosing the right schematic and board-view software is one of the first decisions every iPhone board-level technician faces. This guide compares the three most common tools used for A11 through A19 Pro repairs so you can build a setup that matches your work style and budget.
If you mostly trace shorts and open lines
Pick ZXW
It is still the fastest way to move from a dead board to a suspect component on A11–A16 repairs.
If you use JC programmers and want one ecosystem
Pick JCID
The schematic + hardware combo reduces guesswork when you already own JC tools.
If you study power rails and read full schematics
Pick Wuxinji
Its fault notes and rail diagrams help before you apply power or heat.
Side-by-side
Feature comparison at a glance.
| Feature | JCID | ZXW | Wuxinji |
|---|---|---|---|
| Board-view / bitmap tracing | Good | Excellent | Average |
| Schematic depth | Good | Average | Excellent |
| A11–A14 coverage | Excellent | Excellent | Good |
| A15–A16 coverage | Excellent | Good | Good |
| A17–A19 Pro coverage | Good | Average | Average |
| Hardware integration | Excellent | None | None |
| Ease of learning | Good | Good | Average |
| Update speed | Fast | Moderate | Moderate |
| Best value for beginners | Yes | Yes | No |
Ratings are based on classroom and bench feedback from technicians repairing A11 through A19 Pro devices.
Deep dive
What each tool does best.
JCID
JCID / JC Schematic
Best all-in-one ecosystem for iPhone & Android logic-board repair
Strengths
- Integrated with JC programmers, face-ID tools, and battery tags
- Regularly updated schematics for A11 through A17 Pro
- Clean, searchable pad-layout and bitmap views
- Strong community support and Chinese-to-English translations
Watchouts
- Requires active subscription for latest schematic updates
- Heavily tied to JC hardware; less useful standalone
Best for
Technicians already using JC programmers, tag-on flex cables, or battery programmers
ZXW
ZXW / Zillion x Work
Industry standard for board-view and bitmap tracing
Strengths
- Fastest component-to-pad tracing for A11–A16 boards
- Detailed bitmap overlays for shorts, open lines, and filters
- Lightweight Windows app; works on entry-level laptops
- Affordable yearly license for most regions
Watchouts
- A17/A18 Pro coverage lags behind newer tools
- UI feels dated; search can be slow on large boards
Best for
Daily board-level technicians focused on tracing, shorts, and component-level diagnostics
Wuxinji
Wuxinji (Five-Star Machine)
Powerful for schematics, diagrams, and hidden repair notes
Strengths
- Extensive schematic library with repair notes and common faults
- Great for understanding power-rail sequences and reset lines
- Useful for both Android and Apple logic-board diagnosis
- Often bundled with other Chinese tool subscriptions
Watchouts
- Board-view bitmap tracing is weaker than ZXW/JCID
- Interface translations can be inconsistent
Best for
Technicians who prefer reading full schematics and fault-history before picking up an oscilloscope
Recommended setup
Which tool for which iPhone series?
A11–A14 (iPhone 8 through 12 series)
Recommended: ZXW + Wuxinji
ZXW covers the bitmap tracing you need daily, while Wuxinji helps decode power-rail behavior and common faults on these well-documented boards.
A15–A16 (iPhone 13 / 14 / 15 series)
Recommended: ZXW + JCID
ZXW remains the fastest tracer, and JCID keeps up with newer board layouts and face-ID / battery tag workflows.
A17–A19 Pro (iPhone 15 Pro / 16 / 16 Pro series)
Recommended: JCID first, ZXW as backup
JCID is currently the most aggressive at updating A17 Pro and newer schematic data. Keep ZXW for legacy tracing and cross-checking.
Instructor note: No single tool solves every problem. In the masterclass we teach how to move between these tools and confirm a fault with an oscilloscope before replacing any component. Software shows you where to look; the scope proves you are right.
Masterclass
Learn these tools hands-on with Shankar Jethwani
20-day iPhone A11–A19 Pro board-level engineering course. Live boards, oscilloscope diagnostics, and software workflows.
View August 11th batch →
Support & Downloads
Official software setups by brand
Curated Mr. Yang, JCID, Qianli, and Xzz/ZXW downloads, firmware, and setup files.
Browse downloads →