philips 55pfl4508k/12 hangs on logo "PHILIPS"

[kiko1]

I have philips 55pfl4508k/12 that freezes on start logo...no response to RC or tv buttons or inserted USB with FW....
maybe FW will boot these ones up ...I have 3 of them with exactly this same symptom.
Is there any other possibility to upload FW other than USB?
anyone?

[Andrew F. Ali]

Re: philips 55pfl4508k/12 hangs on logo "PHILIPS"

This reads like you have a software issue and may have to reprogram the EEPROM on the Main Bd.