Before requesting service
For usage issues or malfunctions, first check the manual, community Q&A, and KakaoTalk support. Google account and app data on the device may be erased during service and are not guaranteed or recoverable.
SERVICE
Check warranty terms and how to request service for available products. CAST products and TIGMA chargers have different service request procedures.
01
Product warranty
| Products | Purchase type | Warranty period | Warranty start date | Free coverage | Chargeable / Exclusions |
|---|---|---|---|---|---|
| CAST+ (CAST Plus) | Standalone purchase | 3 years | Device purchase date (regardless of registration; dispatch/manufacture date if unverified) | Failures during normal use within warranty | LCD damage/replacement is chargeable · Clear user fault, including water damage, drops, or unauthorized disassembly, is chargeable |
| CAST+ (CAST Plus) | Subscription (3 or 5 years) | Contract term | Activation date | Free unless clear user fault | Clear user fault, including water damage, breakage, or unauthorized disassembly, is chargeable |
| OTTOCAST (OTTOCAST i3) | Standalone purchase | 1 year | Purchase date | Failures during normal use within warranty | Clear user fault is chargeable |
| OTTOCAST (OTTOCAST i3) | Subscription (5 years) | Contract term | Activation date | Free unless clear user fault | Clear user fault is chargeable |
| CAST Lite (CAST Lite) | Standalone purchase | 1 year | Purchase date | Failures during normal use within warranty | Clear user fault is chargeable · Excluded from the 15-minute installation consultation/exchange program |
| CAST All-in-One (11.4-inch) | Standalone purchase | 1 year | Purchase date | Failures during normal use within warranty | Clear user fault is chargeable · Rear camera installation fee KRW 66,000 extra |
| TIGMA 25W / 33W / 45W / 65W / 7.75W | Standalone purchase | Based on the purchased product page's service information | Purchase date | Defective products receive exchange/service with no round-trip shipping charge | Store rules apply to exchanges/returns of unopened products in normal condition |
| General | — | Service parts retention: 2 years / Useful life: 2 years · Normal-use failures within 2 months of refurbished replacement: free · Same-part failure within 2 months of a paid repair: free | — | — | Repair cost = Parts + Labor + VAT (10%) |
02
Requests and processing
Submit request
Contact customer service at 1688-9256 (weekdays 09:00–18:00), Kakao Channel, or Naver Cafe. Provide your name, contact details, vehicle model/year, retailer, and symptoms. In-person intake and repairs are also available (weekdays 09:30–11:00 / 13:00–16:00; same-day completion may not be possible).
Collection
After phone registration, the designated courier collects within 2–3 days. Remove the SIM and send only the main unit, securely packed against damage. Include a note with your name, contact details, address, vehicle model/year, retailer, symptoms, and enclosed items. If no collection occurs after 3 days excluding weekends and holidays, request again.
Diagnosis and repair
We check symptoms through firmware updates and testing, then replace or repair faulty parts. If repair is difficult, we exchange the device for a quality-tested refurbished unit; this also counts as a repair. For chargeable cases, we provide a quote (parts + labor + 10% VAT) and proceed after consent.
Return
Average turnaround is about 1 week including round-trip shipping (extended testing/repairs may cause delays). Shipping is free within warranty; customers pay for out-of-warranty or chargeable repairs and for regular mail, same-day courier, or other parcel carriers. Submitted products may be held for up to 6 months, then disposed of at our discretion if the customer cannot be reached.
03
Exchanges and returns
[Consumer Dispute Resolution Standards] We follow the Korea Fair Trade Commission's Consumer Dispute Resolution Standards. See the product exchange and repair criteria below. [Standalone purchase withdrawal] Returns/withdrawal available within 7 days of receipt. Change-of-mind returns incur KRW 6,000 round-trip shipping (KRW 3,000 each way), paid by the customer. The company pays shipping for defect-related returns/exchanges. [Subscription withdrawal] Available within 14 days of activation. CAST+ subscription devices and lines are handled separately: unopened products may be returned/refunded; change of mind after opening is settled case by case, so confirm with an advisor. After 14 days, early termination fees apply. [Exceptions] Clear user fault including water damage, breakage, unauthorized disassembly, expired warranty, repairs outside designated centers, or replacement requested for case scratches is chargeable. [Free-service exceptions] Same-part failures within 2 months of paid repair, or normal-use failures within 2 months of refurbished replacement after warranty expiry, are free. [TIGMA] Apply for exchange/return through Naver order history. Store rules apply to unopened products in normal condition; defects are handled without round-trip shipping charges. [Contact] 1688-9256 / https://pf.kakao.com/_xabsxbG
04
Product exchange and repair standards
| Condition | Within warranty | After warranty expiry |
|---|---|---|
| A performance or functional defect arising during normal use requires a major repair within 10 days of purchase | Product exchange or refund | — |
| A performance or functional defect arising during normal use requires a major repair within 1 month of purchase | Free repair or product exchange | — |
| The same defect recurs after up to 2 repairs (3rd occurrence) | Product exchange or refund of purchase price | Paid repair |
| Defects recur after up to 4 repairs across multiple parts (5th occurrence) | Product exchange or refund of purchase price | Paid repair |
| Defect during normal use within the warranty period — Repair impossible | Product exchange or refund of purchase price | — |
| Defect during normal use within the warranty period — Exchange impossible | Refund of purchase price | — |
| A replacement product requires a major repair within 1 month | Refund of purchase price | — |
| Loss caused by unavailable repair parts within the parts retention period (defect during normal use) | Product exchange or refund of purchase price | Refund of the straight-line depreciated value plus 10% (maximum: purchase price) |
| Loss caused by unavailable parts within the retention period (failure due to consumer intent or negligence) | Product exchange after collection of the paid repair charge | — |
| The business loses a product submitted for repair | Product exchange or refund of purchase price | — |
05
TIGMA charger exchanges and service
TIGMA charger warranty terms follow the service information on the purchased product page. Submit through exchange/return in Naver order history or customer service. Defective products receive exchange/service with no round-trip shipping charge; check store rules for exchanges/returns of unopened products in normal condition.