Smart TV Repairs
Wi-Fi issues, app crashes, firmware faults, screen mirroring, Tizen, webOS & Android TV — fully diagnosed and repaired.
Book RepairProfessional TV Repairs in Gauteng — Done Right, First Time.
Same-day repairs on Samsung, LG, Sony, Hisense, TCL and all major Smart, LED, OLED & QLED televisions across Johannesburg, Pretoria & the rest of Gauteng.
★★★★★
4.9 / 5 from 287+ happy customers across Gauteng
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TV Brands We Repair
Every Major TV Brand. One Trusted Repair Team.
From Samsung and LG flagships to Hisense, TCL and entry-level Sinotec models — our certified technicians repair every leading television brand sold in South Africa.
SAMSUNG
Samsung
LG
LG
SONY
Sony
Hisense
Hisense
TCL
TCL
SKYWORTH
Skyworth
SINOTEC
Sinotec
PHILIPS
Philips
Panasonic
Panasonic
Telefunken
Telefunken
JVC
JVC
TOSHIBA
Toshiba
DEVANTI
Devanti
Blaupunkt
Blaupunkt
SHARP
Sharp
Trusted Brand Specialists Across Gauteng
A short look at the brands we know inside-out. Click through to the full repair page for each brand for detailed faults, prices and case studies.
Samsung TV Repair
Korean flagship — QLED, Neo QLED, Crystal UHD, The Frame and Tizen Smart TVs across every screen size.
Common faults: red standby blink, QLED backlight zone failure, Tizen boot-loop, HDMI ARC handshake, no picture.
Samsung Repair PageLG TV Repair
Korean innovator — class-leading OLED panels, NanoCell, UHD LED and the webOS smart platform.
Common faults: OLED image retention, webOS freezing, magic remote pairing, audio dropouts, vertical lines.
LG Repair PageSony TV Repair
Japanese premium — BRAVIA OLED, Master Series, Full-Array LED and Google TV processing.
Common faults: Google TV boot-loops, X1 processor area faults, backlight LED failure, HDMI no-signal.
Sony Repair PageHisense TV Repair
Fastest-growing SA brand — ULED Quantum Dot, Laser TV and the VIDAA Smart platform.
Common faults: VIDAA stuck on logo, RSAG power-board capacitors, no picture, U7/U8 zone driver flicker.
Hisense Repair PageTCL TV Repair
World #2 by volume — QLED, Mini-LED and Google TV at price points other brands cannot match.
Common faults: 4-blink power code, Google TV boot-loop, P-series backlight strip wear, HDMI 1 socket damage.
TCL Repair PageSkyworth TV Repair
Established Chinese brand popular at SA retailers — Android TV / Google TV smart models with affordable LED panels.
Common faults: Android TV stuck on logo, Wi-Fi module failure, backlight strip wear, sound IC fault.
Skyworth Repair PageSinotec TV Repair
South African staple at Game and Makro — affordable LED smart TVs from 24" to 75".
Common faults: won't power on, smart platform crashes, HDMI socket damage, backlight failure on older units.
Sinotec Repair PagePanasonic TV Repair
Japanese engineering — Viera LED, premium OLED with HCX Pro processor, plus legacy Plasma we still repair.
Common faults: classic Plasma 7-blinks Y-Sus, Viera capacitor failure, OLED image retention, no power.
Panasonic Repair PageJVC TV Repair
Japanese heritage brand — LED, Smart and older LCD models sold across South African retailers.
Common faults: won't power on, audio amplifier failure, no signal on HDMI, sticky power button.
JVC Repair PageToshiba TV Repair
Japanese-engineered LED and Smart TVs running the Regza or Android TV smart platform.
Common faults: Regza firmware crash, sleep mode stuck, no backlight, motherboard EEPROM corruption.
Toshiba Repair PagePhilips TV Repair
Dutch heritage — Android TV/Google TV with the famous Ambilight rear LED projection technology.
Common faults: Ambilight LEDs out, Android TV boot-loop, HDMI ARC handshake, BLE remote pairing.
Philips Repair PageTelefunken TV Repair
German-heritage budget LED and Smart TVs widely sold at Game and Makro.
Common faults: Linux smart freeze, no power, vertical lines, HDMI not detecting, remote unresponsive.
Telefunken Repair PageDevanti TV Repair
Australian-origin budget LED & Smart TVs seen across South African online retailers.
Common faults: backlight dim or dark, won't power on, smart apps crashing, remote sensor unresponsive.
Devanti Repair PageBlaupunkt TV Repair
German-heritage budget brand — affordable LED and Android Smart TVs in popular sizes.
Common faults: Android stuck on logo, HDMI loose port, capacitor failure, audio dropouts, dim screen.
Blaupunkt Repair PageSharp TV Repair
Japanese heritage — the Aquos line plus current Smart Sharp televisions in 32"–70".
Common faults: Aquos backlight strip failure, main-board EEPROM corruption, no signal HDMI, audio dropouts.
Sharp Repair Page
Our TV Repair Services
Complete TV Repair Solutions in Gauteng
From cracked screens to no-picture faults, our workshop is equipped to handle every TV repair scenario — quickly, professionally and at fair prices.
LED TV Repairs
Backlight failure, dim picture, flickering, LED strip replacement and screen issues on all LED television models.
Book RepairOLED TV Repairs
Specialist OLED panel diagnostics, image retention, vertical banding and board-level repairs on LG & Sony OLEDs.
Book RepairQLED TV Repairs
Samsung Neo QLED, Hisense ULED and TCL QLED repair specialists — including quantum dot panel diagnostics.
Book RepairBacklight Repairs
Dark screen but sound working? We replace failed LED backlight strips and drivers across all major brands.
Book RepairHDMI Port Repairs
Loose, broken or non-responsive HDMI ports rebuilt or replaced — bringing your TV's connectivity back to life.
Book RepairMotherboard Repairs
Component-level main-board repair, EEPROM re-flashing and replacement with genuine OEM boards where required.
Book RepairPower Supply Repairs
TV not turning on? Standby red light blinking? We rebuild and replace faulty power-supply boards on-site or in workshop.
Book RepairSound & Audio Repairs
No sound, distorted audio, speaker buzzing or HDMI-ARC issues — diagnosed and resolved with quality parts.
Book RepairScreen Issue Diagnostics
Lines on screen, half-screen failure, dead pixels or full panel diagnosis — honest advice on whether to repair or replace.
Book Repair
Common TV Faults & What We Charge
Sound familiar? We Fix These Faults Every Day in Gauteng.
Every TV fault has a story behind it — a tired capacitor, a worn HDMI socket, a backlight strip nearing the end of its 30,000 hours. Below is a plain-English run-through of the symptoms we see most often, what's usually behind them, how we resolve them, and roughly what it'll cost.
Is your TV completely dead and not turning on?
Pressing the power button and getting nothing — no standby light, no clicks, no startup chime — almost always points to a failed power-supply board. Load-shedding is brutal on capacitors and MOSFETs.
Likely causes: blown power-board capacitor, failed MOSFET, tripped backlight protection, faulty standby controller, corrupt firmware after a surge.
How we repair it: we trace the fault with an oscilloscope, replace the failed components at board level and verify the standby and main rails before reassembly.
Typical price: R780 – R2,400. More on power-supply repairs →
Sound is fine but the screen is completely black?
Shine a torch on the screen at an angle — if you can see a faint image, your backlight is the issue. That single test confirms about 80% of cases. Less commonly the T-Con board has failed.
Likely causes: worn LED backlight strips, blown LED driver IC, failed T-Con board, loose LVDS ribbon cable.
How we repair it: safely disassemble the panel, swap the LED strips with brightness-matched OEM equivalents, recalibrate current and verify uniformity. T-Con repairs replace the failed IC at component level.
Typical price: Backlight R1,450 – R4,500 (depending on size). T-Con R1,100 – R2,900. More on backlight repair →
Picture flickering or strobing?
A flicker that comes and goes — especially when the picture brightness changes — almost always means the backlight driver section of the power board is failing. On Mini-LED sets, it can be one of the zone-driver chips.
Likely causes: failing backlight driver IC, marginal LED-current capacitors, faulty Mini-LED zone driver chip, voltage rail instability.
How we repair it: we use an oscilloscope to trace where the rail loses regulation, replace the affected component (IC or capacitor), and reseat any associated ribbon cables.
Typical price: R780 – R2,200. More on LED panel repair →
Vertical or horizontal lines across the screen?
Lines are a sign that something between the T-Con board and the panel is no longer talking properly — usually the T-Con itself or the ribbon cables that connect it to the panel. The good news is most line faults are fully fixable.
Likely causes: failed T-Con board, loose or oxidised LVDS ribbon, damaged COF driver IC on the panel edge.
How we repair it: we open the panel in our ESD-safe area, reseat or replace ribbon cables, replace the T-Con if needed, and run a uniformity test. If the lines are caused by panel-level COF damage, we'll tell you straight whether it's economical.
Typical price: R1,100 – R2,900 for T-Con/ribbon. More on screen repairs →
"No signal" when you plug in your DStv or PlayStation?
HDMI sockets aren't designed for hundreds of plug-cycles. The HDMI 1 port is usually the first to wobble loose because it gets used most. We desolder the damaged port, fit a genuine HDMI replacement, and test all four data lanes plus eARC and CEC.
Likely causes: physically loose HDMI socket, broken solder joints, damaged TMDS data lane, blown HDMI ESD chip.
How we repair it: port replaced with a genuine OEM socket, all signal lanes verified, HDMI-CEC handshake re-tested with multiple source devices.
Typical price: R780 – R1,700 per port. More on HDMI port repair →
No sound, distorted audio or buzzing speakers?
Audio faults can come from many places — a blown amplifier IC after a lightning event, a damaged speaker coil, dry solder joints, or an HDMI-ARC handshake failure with your soundbar. We test from input to output to find exactly where the signal stops.
Likely causes: failed Class-D amplifier IC, blown speaker, dry solder joints, HDMI-ARC firmware fault, Bluetooth pairing issue with soundbar.
How we repair it: trace the audio chain, replace failed components with genuine OEM parts, and verify clear audio across all input sources and modes.
Typical price: R780 – R2,200. More on sound & audio repair →
Smart TV won't connect to Wi-Fi or apps keep crashing?
VIDAA, Tizen, webOS, Google TV and Android TV all develop firmware faults over time — especially after a load-shedding cycle interrupts an update. The fix is almost always a service-mode firmware re-flash rather than any hardware swap.
Likely causes: corrupt firmware after interrupted update, failed Wi-Fi module, antenna damage, EEPROM corruption, app cache overflow.
How we repair it: we re-flash original manufacturer firmware via the service-mode interface using the correct binary for your model. If the Wi-Fi module itself is faulty, we replace it with a genuine OEM part.
Typical price: R660 – R1,700. More on Wi-Fi & smart TV repair →
TV keeps restarting or stuck on the logo?
Boot-loops — where the TV powers up, shows the manufacturer logo, then resets and tries again — are nearly always firmware corruption rather than hardware failure. A proper service-mode re-flash usually brings the set back to life within an hour.
Likely causes: corrupt firmware, EEPROM data damage, marginal power rail causing brownout during boot, faulty NAND flash on the main board.
How we repair it: service-mode firmware re-flash with the correct manufacturer binary, EEPROM verification, and where needed component-level main-board repair.
Typical price: R780 – R2,900. More on motherboard repair →
Remote not working — even with new batteries?
If you've replaced the batteries and your remote still doesn't control the TV, the issue is usually the infrared receiver on the front of the TV (or the BLE pairing on modern smart remotes). Both are quick fixes once diagnosed.
Likely causes: failed IR receiver, faulty IR controller IC, Bluetooth remote unpaired, stuck remote button, dirty IR window.
How we repair it: we test the receiver with a camera (IR shows on phone cameras), replace the sensor if needed, and re-pair Bluetooth remotes via service mode.
Typical price: R550 – R1,550. More on remote sensor repair →
A note on pricing
All prices above are estimates only. Final cost depends on your TV's size, brand, the specific parts required, severity of damage, and the distance our technician travels to you. We always provide a free, no-obligation written quote before any work begins, and we operate a no-fix-no-fee policy on minor faults — you don't pay if we can't repair it.
12+ Years in Gauteng
Why Choose Nathtec
Gauteng's Most Trusted TV Repair Technicians
We've built our reputation on one principle: do the job properly, the first time. From a cracked Samsung QLED in Sandton to a failed LG OLED in Pretoria, every repair is handled by a certified technician using genuine, manufacturer-grade components.
Certified Technicians
Factory-trained on Samsung, LG, Sony & Hisense.
Fast Same-Day Repairs
Most repairs completed within 24 hours.
Affordable Pricing
Free quotes. No hidden costs. No fix, no fee.
90-Day Warranty
Workmanship and parts warranty included.
Genuine OEM Parts
We never use cheap, knock-off components.
Home Service Available
In-home diagnostics for big-screen TVs.
Gauteng-Wide Coverage
Jhb, Pta, East Rand & West Rand.
Transparent Quotes
Honest assessment before any work begins.
Areas We Service
TV Repairs Across the Whole of Gauteng
Whether you're in central Johannesburg, the leafy suburbs of Pretoria, or out in the East & West Rand — a Nathtec technician is within easy reach. We service all major Gauteng cities, suburbs and townships.
Johannesburg
Sandton
Randburg
Midrand
Pretoria
Soweto
Centurion
Roodepoort
Kempton Park
Boksburg
Germiston
Alberton
Not seeing your suburb? We cover the entire Gauteng province. Call 078 721 3551 to confirm.
Customer Reviews
What Gauteng Customers Say About Us
Over 287 verified five-star reviews from satisfied customers across Gauteng. Real repairs, real people, real results.
★★★★★
"My Samsung 65" QLED suddenly had no picture but sound was perfect. Nathtec collected it Monday morning, replaced the backlight and had it back by Tuesday afternoon. Honest pricing, very professional. Highly recommended."
★★★★★
"Our LG OLED kept restarting every few minutes. The Nathtec technician identified a firmware issue, re-flashed it on the spot and it has been flawless for 4 months. Saved me thousands compared to replacing it."
★★★★★
"I called on a Saturday morning expecting nothing — they came out the same day, fixed our Hisense smart TV's HDMI port and didn't overcharge. Genuinely surprised at the service level. These are my TV guys for life."
★★★★★
"Quoted by another shop for almost the cost of a new TV. Nathtec quoted half, fixed it the next day and gave me 90 days warranty. Couldn't be happier — the picture is like new."
★★★★★
"Brilliant work on our Sony BRAVIA. Lines down the screen are completely gone. Technician arrived on time, explained everything clearly and the warranty gave me real peace of mind."
★★★★★
"Smart TV Wi-Fi died after a lightning strike. Nathtec recovered the firmware and replaced the affected board. Affordable, professional and they really know their stuff. Highly recommend across Gauteng."
Frequently Asked Questions
TV Repair Questions, Answered.
Got questions about TV repair pricing, turnaround, brands or service areas? You'll find quick answers below — or just give us a call.
TV repair costs in Gauteng vary based on the brand, model, screen size and the type of fault. Minor issues like HDMI or power-board faults typically range from R550 to R1,450, while complex repairs like backlight or main-board replacements can range from R1,800 to R5,400. We always provide a free, no-obligation quotation before any work begins — and our no-fix-no-fee policy means you pay nothing if we can't repair your TV.
Yes. Most common TV faults — including power issues, HDMI problems, sound faults and software glitches — can be diagnosed and repaired on the same day, provided spare parts are in stock. Same-day TV repair service is available throughout Johannesburg, Pretoria and surrounding Gauteng areas. For more complex board-level repairs, turnaround is usually 24 to 48 hours.
We repair all major TV brands sold in South Africa, including Samsung, LG, Sony, Hisense, TCL, Skyworth, Sinotec, Philips, Panasonic, Telefunken, JVC, Sharp, Aim and Sansui. We service all panel types — LED, OLED, QLED, Mini-LED, and older Plasma and LCD televisions.
Absolutely. Smart TV repairs are one of our specialities. We handle Wi-Fi connectivity issues, app crashes, firmware faults, screen mirroring problems, motherboard replacement and full software re-flashing on Android TV, Samsung Tizen and LG webOS systems. If your smart TV is slow, frozen, or struggling to connect to the internet, we can almost always restore it without replacement.
Yes. Nathtec TV Repairs offers in-home diagnostic and repair services across Gauteng. For larger televisions (55 inches and above), in-home service is often the safer option to avoid any transport damage. We bring a fully equipped mobile workshop to your door. Book a home visit by calling or WhatsApping us on 078 721 3551.
Yes. We cover the entire Gauteng province including Johannesburg, Sandton, Randburg, Midrand, Pretoria, Centurion, Roodepoort, Kempton Park, Boksburg, Germiston, Alberton, Soweto and surrounding East & West Rand suburbs. See our full Areas We Service page for the complete list.
Every Nathtec TV repair includes a 90-day workmanship and parts warranty. If the same fault returns within the warranty period, we'll re-repair it at no cost. This applies to every job we complete — brand pages like Samsung, LG and Hisense as well as service-specific work like backlight replacement and motherboard repair.
Our full Repair Cost Guide lists transparent Rand prices for every common repair type, panel size, and major brand — including backlight strips, T-Con boards, HDMI ports, power-supply repairs, motherboard work and screen diagnostics. Every quote we give is free, no-obligation, and in writing before any work begins.
Get Your TV Repaired Today
TV Acting Up? Let's Fix It — Same Day.
From a Samsung smart TV in Sandton to an LG OLED in Pretoria, our team is on standby. Call, WhatsApp or send us a message and we'll have a certified technician on your case within hours.
Free quote
No fix, no fee
90-day warranty
Same-day service
!
Important Pricing Note
Please note that all prices displayed are estimated starting prices only. Final repair costs may vary depending on the TV size, model, fault diagnosis, parts required, labour, and any additional repairs needed after inspection.