Television Repair in Nairobi
Professional OLED TV Repair in Nairobi & Across Kenya | GossTech Services
Description: Get expert OLED television repair in Nairobi and across Kenya with GossTech Services. We fix burn‑in, banding, pixel faults, power issues, Wi‑Fi/HDMI problems, and firmware errors for LG, Sony, Samsung, Philips, Panasonic, and more. Book a diagnostic today: 0723613664 | info@gosstech.co.ke | www.gosstech.co.ke.
Why Choose GossTech for OLED TV Repair
GossTech Services is a trusted electronics repair company serving homes and businesses in Nairobi and across Kenya. Our engineers specialise in OLED display technology—covering both WOLED (LG/others) and QD‑OLED (Samsung/Sony)—and perform precise board‑level and panel‑support repairs using ESD‑safe workstations and professional diagnostics.
What you can expect:
- Specialised OLED expertise: Image retention (temporary/permanent), near‑black banding, dead/stuck sub‑pixels, panel driver, T‑CON, and mainboard faults.
- All major brands: LG OLED C/G/A series, Sony Bravia A80/A90/A95, Samsung S90/S95 (QD‑OLED), Philips, Panasonic, Hisense, TCL (select models), Skyworth, and more.
- Thorough diagnosis first: No guesswork—structured tests, service menus, and hardware measurements determine the root cause before any repair.
- Genuine‑grade parts & pro tooling: Micro‑soldering, IC replacement, firmware programming, and LVDS/eDP signal analysis.
- Clear communication: Findings, repair options, and care tips explained in plain language.
Contact: 0723613664 | info@gosstech.co.ke | www.gosstech.co.ke
Common OLED TV Problems We Repair
OLED panels deliver stunning contrast and colour, but their unique construction can develop distinct issues over time. Below is a practical overview.
1) No Power / Standby Light Blinking
- Symptoms: TV dead, or LED blink codes; may click or briefly show logo then shut down.
- Likely causes: Power board regulator failure, shorted MOSFETs, mainboard CPU/PMIC faults, corrupted firmware, panel short.
- Our approach: Rail checks (standby/PS‑ON), oscilloscope measurements, isolation of panel and T‑CON, firmware reflash where applicable, board‑level component replacement.
2) Sound But No Picture / Black Screen
- Symptoms: Audio plays, screen remains black; faint image visible with torch; or intermittent picture.
- Likely causes: T‑CON/Panel driver failure, ribbon/COF damage, mainboard video path fault.
- Our approach: Test patterns, LVDS/eDP probing, reseating/cleaning flexes, replacing T‑CON/driver ICs, mainboard repair.
3) Image Retention & Burn‑In
- Symptoms: Ghosted logos/tickers; static UI elements persist even after content changes.
- Likely causes: Uneven pixel wear from prolonged static content at high brightness.
- Our approach: Run pixel refresher/compensation cycles, uniformity calibration, usage/brightness profile adjustments. When burn‑in is permanent and severe, advise panel replacement options.
4) Vertical Banding / Near‑Black Uniformity Issues
- Symptoms: Vertical stripes visible on 1–10% grey scenes, blotches in dark scenes.
- Likely causes: Panel uniformity variance, aged sub‑pixels, compensation data drift, T‑CON drive imbalance.
- Our approach: Panel warm‑up and compensation cycles, service‑level resets where allowed, T‑CON verification, and uniformity profile optimisation.
5) Dead or Stuck Pixels / Tinting
- Symptoms: Tiny bright/dark dots that never change; green/magenta tint on one side.
- Likely causes: Sub‑pixel failure, driver IC/COF issues, manufacturing variances aggravated by heat.
- Our approach: Pixel refresh routines, driver checks, selective board repair. (Note: individual pixel replacement is not feasible; we target driver/timing causes.)
6) Random Reboots / Boot Loops
- Symptoms: TV restarts repeatedly, freezes at logo, loses settings.
- Likely causes: Firmware corruption, failing eMMC/NAND, power instability, overheating SoC.
- Our approach: Firmware re‑flash, storage replacement/programming, thermal and power delivery fixes.
7) HDMI / ARC / eARC / CEC Issues
- Symptoms: No signal, handshake failures, soundbar not detected, lip‑sync issues.
- Likely causes: Damaged HDMI ports or ESD diodes, firmware bugs, CEC conflicts.
- Our approach: Port rework/replacement, ESD component repair, firmware updates, CEC configuration.
8) Wi‑Fi / Bluetooth / Smart TV Problems
- Symptoms: No wireless connection, app crashes, remote won’t pair, sluggish OS.
- Likely causes: Wi‑Fi module failure, antenna issues, software corruption.
- Our approach: Module/antenna checks, re‑soldering, firmware resets/updates, board replacement when necessary.
9) No Sound / Distorted Audio
- Symptoms: Muted output, crackling, only one channel, ARC audio only.
- Likely causes: Amplifier IC failure, speaker damage, audio codec glitches.
- Our approach: Amp IC replacement, speaker tests/replacement, firmware and audio path checks.
10) Physical Damage / Cracked Panel
- Symptoms: Visible cracks, ink‑like blotches, lines.
- Likely causes: Impact or pressure damage.
- Our approach: Panel assemblies are not economically repairable at pixel level; we provide panel replacement options and insurance reports on request.
OLED Diagnosis & Repair: Our Step‑by‑Step Process
- Intake & Fault Capture: Record model/serial and history; verify power source, surge/spike exposure, usage patterns (brightness/logo/console usage).
- Replicate & Log: Run test slides (1%, 5%, 10% grey), colour ramps, and HDR/SDR patterns to reproduce symptoms.
- Service Menu & Self‑Test: Access brand‑specific diagnostics, read error counts, panel hours, and compensation data where permitted.
- Electrical Measurements: Check standby rails, PS‑ON behavior, regulator outputs, and ripple; probe LVDS/eDP lines, T‑CON waveforms, and panel bias supplies.
- Board‑Level Repair: Clean/reseat flexes, replace faulty ports/components, micro‑solder ICs as needed, and reprogram firmware/storage devices.
- Panel Care & Calibration: Run pixel refresher/compensation cycles, adjust near‑black gamma, and perform uniformity checks post‑repair.
- Soak Test: Extended run under varied content (SDR/HDR, gaming, streaming) to ensure stability.
- Handover & Prevention Tips: Provide care guidelines to extend panel life and reduce recurrence.
Quick Reference: OLED Faults & Fixes
| Symptom | Likely Cause | GossTech Fix | Notes |
|---|---|---|---|
| No power / blinking LED | Power board, mainboard, firmware | Rail checks, component replacement, firmware re‑flash | Protect with a quality surge protector |
| Sound no picture | T‑CON/driver, flex, mainboard video | T‑CON replacement/repair, flex service, mainboard repair | Torch test may reveal faint image |
| Burn‑in / retention | Pixel wear, static logos | Compensation cycles, usage/brightness tuning | Severe cases: panel replacement |
| Vertical banding | Panel uniformity, T‑CON balance | Compensation/reset, T‑CON verification | Most visible on 1–5% grey |
| Stuck/dead pixels | Sub‑pixel/driver fault | Pixel refresher, driver checks | Individual pixel repair not viable |
| Random reboot | Firmware/eMMC, power rails | Re‑flash, storage replace, power repair | Heat can accelerate failures |
| HDMI ARC/eARC failure | Port/ESD, firmware | Port rework, ESD diode, firmware | Check certified HDMI cables |
| Wi‑Fi/Bluetooth drop | Module/antenna, software | Module repair/replacement, antenna fix | Keep firmware updated |
| No/poor audio | Amp IC, speaker, codec | Amp/speaker replace, codec update | Check ARC/eARC settings |
Brands & Series We Service (OLED)
| Brand | Popular OLED Series | Notes |
|---|---|---|
| LG | C1–C4, G1–G4, A1/A2, B1/B2/B3 | WOLED panels; pixel refresher features |
| Sony | A80J/A80K/A80L, A90J/A90K, A95K/A95L | Includes QD‑OLED (A95 series) |
| Samsung | S90B/S90C/S90D, S95B/S95C/S95D | QD‑OLED panels |
| Philips | OLED7xx/8xx/9xx | Ambilight models |
| Panasonic | LZ/LZ2000/others | Pro calibration features |
| Hisense/TCL/Skyworth | Select OLED lines | Availability varies by region |
If your model isn’t listed, call 0723613664—we likely service it.
Other Types of Televisions We Repair
Beyond OLED, GossTech also repairs:
- QLED & Mini‑LED / Neo QLED (Samsung, TCL, Hisense)
- LED/LCD (edge‑lit, direct‑lit, local dimming)
- 4K/8K Smart TVs (webOS, Google TV/Android, Tizen, Roku)
- Plasma (legacy support where parts available)
- Commercial Displays & Signage (Hospitality, retail, boardrooms)
| TV Type | Typical Faults | Our Repair Actions |
|---|---|---|
| QLED / Mini‑LED | Backlight blooming, local dimming errors, T‑CON faults | LED array/driver replacement, T‑CON repair, firmware updates |
| LED/LCD | No backlight, lines, colour washout | LED strip replacement, panel/COF checks, mainboard repair |
| Smart TV (all) | Apps crash, storage full, no Wi‑Fi | Firmware refresh, storage service, Wi‑Fi/Bluetooth module repair |
| Plasma (legacy) | No picture, buzzing, PSU issues | PSU/YSUS/ZSUS repair, capacitor/IC replacement |
Service Coverage in Nairobi (All Estates We Serve)
We offer on‑site support, pickup, and delivery service to every major estate in Nairobi. Below is a comprehensive list for quick reference.
Nairobi CBD & Inner City
- CBD, Upper Hill, Community, Railways, Industrial Area, Ngara, Pangani, Parklands, Highridge, Westlands, Museum Hill
Westlands, Parklands & Surrounds
- Westlands, Parklands, Kitisuru, Spring Valley, Kyuna, Loresho, Lavington, Riverside, Muthaiga, Muthaiga North, Thigiri, Gigiri (UN), Runda, Runda Mumwe, Garden Estate, Thome, Balozi, Peponi, Ruaka (border)
Kileleshwa, Kilimani & Hurlingham Corridor
- Kileleshwa, Kilimani, Hurlingham, Yaya, Woodley, Adams Arcade, Ngong Road, Nairobi Hospital area, State House, Arboretum
Dagoretti & Karen/Lang’ata Zone
- Dagoretti Corner, Riruta, Kawangware, Uthiru, Waithaka, Mutuini, Karen, Hardy, Lang’ata, Southlands, Otiende, NHC, Nairobi National Park area
South B / South C / Nairobi West
- South B, South C, Nairobi West, Wilson Airport area, Belle Vue, Hazina, Capital Centre area, Mugoya, Plainsview
Embakasi & JKIA Corridor (Eastlands South)
- Embakasi, Pipeline, Tassia, Fedha, Nyayo Estate, Avenue Park, Baraka, Kware, Mukuru (Kwa Njenga/Kwa Reuben), Airmens, Imara Daima, General Motors/Enterprise Rd, Syokimau (border), JKIA
Donholm, Umoja, Buruburu & Kayole (Eastlands Central)
- Donholm, Greenspan, Savanna, Tena, Umoja I/II, Buruburu Phases 1–5, Outer Ring, Komarock, Kayole, Jacaranda, Mihango, Utawala, Ruai
Kasarani, Roysambu & Thika Road Corridor
- Kasarani, Roysambu, Ruaraka, Garden City, TRM area, Zimmerman, Githurai 44/45, Kahawa West, Kahawa Wendani, Kahawa Sukari, Hunters, Clay City, Seasons, Sunton, Mwiki
Eastleigh & Starehe
- Eastleigh Sections I–III, California, Pumwani, Ngara East, Ziwani
Makadara & Kamukunji
- Makadara, Maringo/Hamza, Buru Buru, Viwandani, Landmawe, Shauri Moyo, Bahati
Kibra Sub‑County
- Kibera (Olympic, Karanja, Silanga, Laini Saba, Makina, Gatwekera, Kianda, Soweto), Sarang’ombe, Woodley/Kenyatta Golf Course
Mountain View, Kangemi & Waiyaki Way
- Kangemi, Mountain View, Uthiru, Kinoo (border), Ndumboini
If your estate isn’t listed, we still serve you—call 0723613664.
Coverage Across Kenya
We also serve major towns and surrounding estates countrywide through our mobile technicians and partner logistics.
| Region/County | Towns/Cities | Sample Estates/Areas |
|---|---|---|
| Nairobi & Metro | Nairobi, Kiambu, Ruiru, Thika, Kikuyu, Limuru, Ruaka | Thika Rd corridor, Ruaka, Kahawa, Ruiru Bypass, Kamakis, Toll, Juja |
| Coast | Mombasa, Nyali, Bamburi, Mtwapa, Kilifi, Malindi, Diani | Nyali Links, Shanzu, Kizingo, Tudor, Ganjoni, Old Town |
| Western | Kakamega, Bungoma, Busia, Vihiga | Milimani, Lubao, Mumias, Mayoni |
| Nyanza | Kisumu, Homa Bay, Migori, Siaya, Kisii | Milimani, Mamboleo, Riat, Manyatta, Tom Mboya, Nyamasaria |
| Rift Valley | Nakuru, Naivasha, Eldoret, Kericho, Nanyuki | Milimani, Shabab, Kiamunyi, Section 58, Kapsabet Rd, Rupa Mall area |
| Central | Nyeri, Murang’a, Kirinyaga, Embu | Skuta, Ruring’u, Blue Valley, Kangema, Kutus |
| Eastern | Machakos, Mwala, Matuu, Kitui, Meru, Isiolo | Syokimau, Mavoko/Athi River, Kitengela, Mlolongo, Nkubu |
| North‑Eastern | Garissa, Wajir, Mandera | Township areas and CBDs |
Call 0723613664 to confirm same‑day pickup availability in your town.
How to Book a Diagnostic
- Call or WhatsApp: 0723613664
- Email: info@gosstech.co.ke
- Website: www.gosstech.co.ke (contact form)
Share the brand, model number, approximate size (inches), symptoms, and your estate/town. We’ll advise the next steps and arrange pickup or on‑site service where appropriate.
Care Tips to Extend OLED Lifespan
- Lower static exposure: Avoid leaving static logos or game HUDs for hours; enable screen savers and logo dimming features.
- Reasonable brightness: Use moderate OLED Light settings for long sessions, especially in SDR.
- Run pixel refresher: Allow scheduled compensation cycles; don’t unplug at the wall unnecessarily.
- Varied content diet: Mix content types (movies, sports, games) to even out wear.
- Adequate ventilation: Keep the TV well‑ventilated to reduce thermal stress.
- Use surge protection: Quality surge guards help protect sensitive boards.
Frequently Asked Questions (FAQ)
Q: Can burn‑in always be removed?
A: Temporary retention often improves with pixel refresher cycles. Permanent burn‑in is physical wear; we mitigate visibility but sometimes panel replacement is the correct fix.
Q: Do you repair QD‑OLED and WOLED models?
A: Yes—our team handles both technologies (Samsung/Sony QD‑OLED, LG/others WOLED).
Q: My TV shows bands on dark scenes. Is it faulty?
A: Mild near‑black banding is common in OLEDs. If it’s intrusive, calibration and compensation can reduce it; severe cases may indicate panel/T‑CON imbalance.
Q: Do you offer pickup and delivery?
A: Yes—we coordinate secure pickup/delivery across Nairobi and in major towns countrywide via trusted partners.
Q: What if parts are unavailable?
A: We maintain supplier networks for boards and modules. If a specific part is discontinued, we’ll propose alternatives, including board‑level repair or certified refurbished parts.
Call GossTech Today
For dependable OLED TV repair in Nairobi and across Kenya, contact GossTech Services:
- Phone: 0723613664
- Email: info@gosstech.co.ke
- Website: www.gosstech.co.ke
Your OLED deserves specialist care—let GossTech restore flawless pictures and reliable performance.