Professional Canon 5D Mark IV Repair
Why Choose Us for Canon 5D Mark IV Repair
We fix what others couldn’t — or can’t.
Same-Day Repair
Original Parts
1–3 Month Warranty
Professional Team
Canon EOS 5D Mark IV Service Prices
Prices exclude spare parts. Wherever possible we repair at component level. Express/priority queue available.
- Diagnostics – $0 if you proceed / $60 if declined
- Express repair (2–3 hours) – +50% to selected service
- No power / random shutdowns (rails, fuses, DC-DC) – from $185
- Main LCD replacement (3.2″, touch) – from $145
- Top status LCD replacement – from $150
- Shutter assembly replacement – from $260
- Mirror box / sub-mirror alignment – from $170
- AF module cleaning + calibration – from $140
- Hot shoe / flash sync circuit repair – from $90
- CF card slot pin rebuild – from $115
- SD slot repair (UHS-I) – from $100
- USB 3.0 (Micro-B) port replacement – from $125
- HDMI (Type C) port replacement – from $120
- Buttons / main dial / joystick rework – from $105
- Weather-seal refresh (doors, gaskets) – from $95
- Full-frame sensor cleaning (wet swab + dust map) – from $80
- Body deep clean (ports + exterior) – from $65
- Battery door / latch repair (LP-E6N) – from $85
- Top cover / rear shell replacement – from $185
- Main board / power regulation repair – from $210
- Firmware recovery / stuck on logo – from $100
- Lens mount & bayonet service (EF) – from $130
Final cost depends on fault complexity and parts availability. Every repair includes full testing and a written warranty.
Typical EOS 5D Mark IV Issues We Fix
- Err 20/30 during bursts — shutter or mirror drive faults; assembly service.
- Live View / Dual Pixel AF anomalies — sensor path and flex rework, AF calibration.
- Touchscreen not responding — LCD/touch panel replacement.
- CF/SD write errors — slot rebuild and controller line validation.
- Hot shoe misfires — oxidized contacts or cracked solder joints; cleanup and reflow.
EOS DSLRs — Error Codes Quick Hints
| Code | Meaning | First Aid |
|---|---|---|
| Err 20 | Mechanical fault | Power cycle; reseat lens/battery; service mirror/shutter if it repeats. |
| Err 30 | Shutter problem | Try fresh LP-E6N; inspect blades; likely shutter replacement. |
| Err 40 | Power/electrical | Clean contacts; avoid hot-plug; board diagnostics. |
| Err 70 | Data/processing | Reset; new card; firmware/board service if persistent. |
| Err 80/99 | General/image fault | Stop use; full diagnostics to isolate shutter/sensor/firmware path. |
Pro Tips for EOS 5D Mark IV
- Use UDMA 7 CF and quality SDXC UHS-I; avoid microSD adapters.
- For 4K recording choose high-speed CF; SD UHS-I may bottleneck.
- Keep hot shoe and battery contacts clean to prevent dropouts.
- Store LP-E6N at 40–60% charge; full cycle occasionally for calibration.
- Stay current on firmware, especially for Dual Pixel AF performance.
FAQ – Canon EOS 5D Mark IV Repair
1. The camera won’t power on or shuts off under load.
We check LP-E6N packs, DC-DC rails, fuses and protection, then restore the failing stage.
2. Dual Pixel AF behaves erratically in Live View.
We clean the AF/sensor path, update firmware and perform AF calibration with reference optics.
3. Err 20/30/99 appears intermittently.
We isolate shutter/mirror flex and main PCB paths, replace weak parts and stress-test.
4. Touchscreen is unresponsive or flickers.
We replace the LCD/touch assembly and reseal to maintain protection.
5. CF/SD slot errors or “Card not recognized”.
We rebuild the slot, straighten/replace pins, validate controller lines and test with certified media.
6. Stuck on logo / boot loop.
We perform a service reflash, verify boot partitions and check NAND integrity.