Prime 4 is frozen, can't switch it on

Hello My prime 4 is frozen on the start screen. Any idea ? I 've tried to unplug it several times but it does not change anything

Please help !!!

Re-install the software.

yes of course… but I need 1st to start the device ! which is impossible !

- My device can’t start

- OK start it first and install the firmware

You can go directly to update mode while booting up. You need to download the computer updater for prime 4 and follow its instructions.

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how can I do it ? On this page How To Update Engine DJ OS | Engine DJ it says

Connect your device to your computer via the blue USB cable provided and switch it on.

Prime4 - Hold EJECT > Power ON

thank you . Done. it seems to work now, i cross my fingers…

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