
Sprint has halted shipping new LG LX260 Rumor units to stores because of a bug that can trigger a complete erasure of the phone's firmware, says Christopher Price at PhoneNews.com.
Sprint has isolated the issue to a specific debugging menu, intended for LG engineers to work on the device during development, says Price. Sprint has not disclosed the specific code, to prevent abuse.
The trigger is timed to function only at start up, so users can avoid the problem by not pressing any buttons on the phone for at least 30 seconds after it has fully powered on, Price notes.
The phone, once triggered, cannot be restored except at the factory. The debugging code even erases the portions of the firmware that would allow a Sprint Store to recover the device (requiring what is known in the industry as a JTAG restore, Price notes.