How the fault appears
- two speakers will not form a stereo pair
- party mode cannot find the second speaker
- speaker-to-speaker link failed after an update
Model-specific repair · all Serbia
TWS, Stereo Pair, PartyBoost or Connect+ does not work: speaker diagnostics and repair in Serbia
We test generation compatibility, firmware versions, group reset, Bluetooth hardware, buttons and settings memory. We accept speakers in Belgrade or by courier from anywhere in Serbia.
90 days on labor, 6 months on parts5.0 · 2 Google
What to do before service
Provide the exact model of both speakers because generations may use incompatible standards.
What we test
- shared protocol support on both models
- reset and firmware versions
- mode buttons, radio and storage
Possible repair work
- configuration and correct system reset
- button or Bluetooth-section repair
- software recovery through supported procedures
Speaker models and types affected by this fault
JBL Flip 3 / 4 / 5 / 6 / 7→JBL Charge 3 / 4 / 5 / 6 / Essential→JBL Xtreme 1 / 2 / 3 / 4→JBL Boombox 1 / 2 / 3 / 4→JBL Go / Clip→JBL PartyBox→Marshall Willen / Emberton / Middleton→Marshall Stockwell / Kilburn / Tufton→Marshall Bromley→Sony SRS‑XB / XE→Sony ULT FIELD→Sony SRS‑XG / XV Party→Bose SoundLink Mini / Color→Bose SoundLink Micro / Flex→Bose SoundLink Revolve→Bose SoundLink Plus / Max→Harman Kardon Onyx Studio 3–9→Harman Kardon Go + Play→Soundcore Motion→Soundcore Boom→Soundcore Flare / Rave→UE WONDERBOOM→UE BOOM / MEGABOOM→UE EPICBOOM / HYPERBOOM→Tronsmart T / Element / Force / Trip→Tronsmart Bang / Halo→Xiaomi Portable / Sound Outdoor→LG XBOOM→Samsung Sound Tower→Portable PA / Karaoke Speakers→
Guide labour prices
The exact price depends on model, root cause, opening complexity and part availability. Work starts after diagnostics and approval.
Speaker diagnosticsFree
Power or connector repairfrom 2,500 RSD
Battery replacementfrom 3,000 RSD
Driver, microphone, buttons or controlsfrom 3,000 RSD
Amplifier, power or board repairfrom 4,000 RSD
Liquid and corrosion treatmentfrom 3,500 RSD
All speaker faults
Speaker will not turn on→Speaker is not charging→Speaker battery drains quickly→Speaker works only when plugged in→Speaker overheats or battery is swollen→Speaker powers on but has no sound→Speaker distorts, buzzes or cuts out→One driver, channel or satellite is not working→Speaker is quiet or has no bass→Speaker will not connect over Bluetooth→Bluetooth drops or has short range→Buttons, joystick or volume control do not work→USB, DC or AUX connector is damaged→Speaker after water or liquid exposure→Microphone or karaoke input does not work→Wi-Fi, app, AirPlay or multiroom does not work→Speaker restarts, freezes or will not boot→Lighting, indicators or display do not work→Wired speakers hum, buzz or hiss→Subwoofer or satellite is not working→Speaker remote control does not work→
Frequently asked questions
How much does “TWS, Stereo Pair, PartyBoost or Connect+ does not work” cost?
Speaker diagnostics are free. Exact price depends on model, root cause, opening complexity and part cost, and is approved before work.
Can the fault be diagnosed from a photo?
A photo helps identify the model and external damage. Power, charging, amplification, drivers and boards require measurements after intake.
Can I send the speaker by courier?
Yes. We accept devices from across Serbia. Send the model, approximate weight, symptom and city first so we can advise on set and packing.
Do you begin repair immediately?
No. We diagnose first, report the cause, options and exact price, and start only after approval.