RT4 stuck on boot up

[lasiakutevs]

Hi im trying to upgrade my rt3 radio to rt4 on my Citroen c5 2005 got a screen and the radio, but when i try to turn it on its just showing the Citroen logo and nothing happens i can hear the hard drive spinning and trying to read but it doesn't boot up to the menu or anything any idea what is wrong i also have the JBL audio system fitted.

[GiveMeABreak]

Was your RT3 the VAN or CAN version ? You have to have a compatible version. What software version was your original RT3 showing as (firmware)?

Do you also have the correct connectors as the RT3 uses fibre optic connections to the screen where the RT4 does not.

Take a l;ook here - Phibu do the conversion harness and the radio adapter harness too. On some vehicles with RT3, the FM aerials have a splitter somewhere and you may need the adapter to convert these back to a single connection. Details here:

RT3 to RT4/5/6 Conversion Harness
https://www.phibu-electronics.com/inter ... 2x15957369

FM Radio Adapter
https://www.phibu-electronics.com/adapt ... 2x17646168

[lasiakutevs]

the rt3 is a CAN version the software version is 6.62 and yes i have made the correct connector for the screen
but i didint connect the aerials.
so i don't know if it makes a difference to boot up the radio

[GiveMeABreak]

The missing aerials won't make a difference to the boot sequence - it will just mean no satellites or no radio reception / GSM reception.

If it's not booting you have either a faulty unit or a non-compatible unit or an electrical connection or multiplexing issue, or programming.