4K UHD TV Repair in Gurgaon — HDR, eARC & Panel Specialists

4K UHD sets pack four times the pixels of a Full HD panel, which means four times the connections, more sensitive timing, and more complex signal processing. The faults you'll see on a UHD set are often invisible to a non-specialist:

HDR mode looks washed out or oversaturated
Dolby Vision content shows a green or magenta tint
HDMI 2.1 / eARC drops audio when connected to a soundbar
Motion handling stutters during sports
Panel uniformity ("dirty screen effect") on bright scenes

These need real diagnostic equipment — a 4K signal generator, colorimeter, and brand-specific service software — not the multimeter-and-luck approach you'll find at neighbourhood shops.

How we fix premium UHDs

For every flagship UHD repair we run a four-step diagnostic: signal trace, panel uniformity scan, HDR/EOTF recalibration, and firmware integrity check. Most issues that look like "the TV is dying" are actually firmware corruption, a partial backlight failure, or a board-level component drift that's fully repairable.

Common faults we fix

If your symptom is on this list, we've fixed it 1,000+ times.

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HDR colours look wrong

EOTF curve drift, white-balance recalibration, or HDMI HDR metadata mismatch. We recalibrate with a colorimeter.

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eARC drops audio

HDMI 2.1 firmware bug or pin damage on the eARC port. We re-flash, re-pin, or replace the HDMI board.

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Motion stutters / judder

Frame interpolation engine fault on the SoC, or BFI mode not engaging. Firmware reflash usually fixes it.

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Dirty screen effect

Panel uniformity issue — repairable on most non-OLED UHDs via diffuser realignment.

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Game mode lag

HDMI VRR / ALLM negotiation. We re-flash the EDID and verify under load with a 120 Hz test pattern.

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One-half dim panel

Half-strip backlight failure on edge-lit UHDs. Strip replacement at home for most models.

Our process

Diagnosed and repaired in one visit.

Tell us the model. Premium UHD repair often needs brand-specific tools — knowing the exact model means we arrive prepared.
On-site signal test. Our 4K HDR test patterns reveal colour, contrast and motion faults instantly.
Calibration or repair. If it's a calibration issue we fix it in under an hour. If it's hardware, we quote and repair on the spot.
Final colorimeter check. After repair we re-measure ΔE colour accuracy to make sure the picture matches factory spec.
Warranty & report. You get a printed warranty card plus a colour calibration report for your records.

Brands we cover

Every major manufacturer.

SamsungLGSonyMi / XiaomiOnePlusTCLHisensePanasonicToshibaPhilips

FAQ

Quick answers

Why does my 4K TV look better with regular content than with HDR?

Almost always it's an EOTF (electro-optical transfer function) calibration drift. Set HDR brightness in a service menu — something we can recalibrate at home with a colorimeter for ₹999.

Can you fix HDMI 2.1 eARC dropouts with my Sonos / Sony soundbar?

Yes — these are usually firmware handshake bugs. We re-flash the HDMI board, update firmware to the right version, and verify with a 4K@120 source.

My 4K TV looks fine but Netflix HDR looks blocky. Why?

Often the streaming app's hardware decoder has been quietly disabled by an OS update. We re-flash the firmware and restore HEVC + Dolby Vision passthrough.

Are 4K UHD repairs more expensive than LED?

Slightly — typical UHD repairs run ₹1,500–8,500 vs ₹800–6,500 for LED, mainly because the boards are more complex. We always quote before starting.

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