Over-ear
Headphone repair
QCY H series repair in Serbia — faults and diagnostics
H series (H2 / H3 / H4): QCY H series service (H2 / H3 / H4): will not turn on or charge, no audio, microphone or Bluetooth faults. Diagnostics in Belgrade with Serbia-wide intake.
Common symptoms
QCY H series
Repair feasibility, part availability and final cost are confirmed after diagnostics. Factory moisture resistance cannot be guaranteed after opening.
H2 / H3 / H4
Earbuds and case separately; cable or dongle when used
Headphone problems
Find help by the exact symptom
The same symptom can have different causes. We inspect the device before recommending a repair.
Headphones will not turn on or keep shutting off→Headphones will not charge→Charging case will not charge the earbuds→One earbud or headphone side does not work→No sound in headphones→Headphones sound unusually quiet→Crackling, noise, distortion or intermittent audio→Headphone microphone does not work→Headphones will not connect over Bluetooth→Bluetooth connection keeps dropping→TWS earbuds will not sync with each other→Headphones battery drains quickly→Headphones work only while charging→Touch controls or wear detection do not work→ANC or transparency mode does not work→Headphone cable, plug or connector is damaged→Headphone buttons do not work→Headphone repair after water, sweat or moisture→Headphones stopped working after a drop→Headband, hinge or earcup mount is broken→One earbud does not charge in its case→Headphone microphone is noisy or muffled→Gaming headset does not work through its USB dongle→USB-C or Lightning headphone port does not work→Left or right channel on wired headphones is dead→Wireless headphones work only when wired→Phone or computer cannot find the headphones→Headphone transparency mode is malfunctioning→Earbuds keep falling out or fit poorly→
Models and series
Variants covered in this family
H series · H2 / H3 / H4
Devices accepted from anywhere in Serbia
Repair feasibility, part availability and final cost are confirmed after diagnostics. Factory moisture resistance cannot be guaranteed after opening.
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