LG Get product support for the LG KF750. Download KF750 manuals, documents, and software. View KF750 warranty information and schedule services. KF750 - read user manual online or download in PDF format. Pages in total: 98. View and Download LG KF750 - Secret Cell Phone 100 MB user manual online. User Guide. KF750 - Secret Cell Phone 100 MB Cell Phone pdf manual User manual for the device LG Electronics Black Label Secret KF750. Online user manual database. LG KF750 | User Guide. Se. t u p. Installing the USIM and battery. 1 Remove the battery cover. Press and hold down the battery release button at the top of the. LG's site has a upgrade tool but it has no KF750 model in the list.. Manual has no any info My phone's firmware is quite obsolate: v10c. I read from internet PCS GSM/ EDGE Phone with Bluetooth Users Manual details for FCC ID BEJKF750 made by LG Electronics USA. Document Includes User ManualView and Download LG KF750 service manual online. KF750 Cell Phone pdf manual download. Also for: Kf755c. View and Download LG KF750 user manual online. Mobile Phone with Slim Profile, 5 MP Camera, Neon Touch Navigation, and Touch Media. KF750 Cell