Description
LG CU400 3G Quad-band, Factory Refurbished, AT&T
Offered as an AT&T unit, the LG CU400 3G Quad-band in this lot is Factory Refurbished, reconditioned to close-to-new working order, with unlock status and box contents confirmed per lot. Collectors who want a clean example of one of the first US 3G flips, and exporters who can use an AT&T-branded quad-band phone, are the buyers.
The LG CU400 is a 2006 Cingular clamshell and one of the carrier's first UMTS phones: quad-band GSM plus 3G for Cingular Video, MobiTV, and MobiRadio streaming, a 176 x 220 65K-color internal display with a 96 x 64 external screen, a VGA camera with video, Bluetooth 1.2, Push-to-Talk, mobile email and instant messaging, and a full organizer with tools from a tip calculator to a unit converter. The 3G it was built for is long gone.
TG Wireless offers the CU400 to exporters who supply quad-band flips to markets with live GSM or UMTS service, to collectors of early 3G hardware, and to prop buyers; it has no US network use today.
Key specifications
| Model | LG CU400, Cingular/AT&T 3G flip phone (2006) |
|---|---|
| Network status | AT&T |
| Form factor | Clamshell with numeric keypad and external display |
| Display | 176 x 220 internal, 65K colors; 96 x 64 external |
| Camera | VGA with video capture |
| Connectivity | Quad-band GSM with UMTS 3G, Bluetooth 1.2, Push-to-Talk |
| Services | Cingular Video, MobiTV, MobiRadio, MusicID (discontinued) |
| Messaging | SMS, MMS, mobile email, instant messaging |
| Tools | Calendar, alarm, notepad, calculator, world clock, stopwatch, unit converter |
Condition: Factory Refurbished
Factory refurbished units have been reconditioned to close-to-new working order. They are not brand new and may show light signs of handling. TG tests and grades each unit before it ships. Tell your account manager whether you need units with the original box and accessories or handset-only packs; the mix varies by lot.
Network and compatibility
The LG CU400 is a GSM/UMTS phone with 3G data and no LTE or VoLTE. US carriers retired 3G in 2022 and T-Mobile ended 2G GSM on August 3, 2026, so it no longer registers for calls or data on a US network. Lock state is per listing; see the network status line in the table. Buyers move it to export markets where GSM or UMTS is live, to collectors and prop houses, to parts dealers, and to Wi-Fi-only use where supported.
Resale fit
- Export to markets where GSM or UMTS service is still live and a feature phone or early Android sells at a low ticket.
- Collector and retro-tech shops that stock working LG handsets from the late 2000s and early 2010s.
- Film, TV, and theater prop departments that need period-correct phones.
Ordering from TG Wireless
TG Wireless sells to the trade. Pricing is shown to approved dealer accounts, and your account manager confirms availability, quantities, and grade mix before invoicing. Orders typically ship within 24 hours of order placement by FedEx, UPS, or DHL, within the United States and internationally. TG Wireless's 12-month warranty applies, with coverage and RMA handling per your order documentation. Resellers with a valid resale certificate are not charged sales tax. The FAQ covers account setup and shipping questions.
