R4ids.cn briked

Hi good morning.
I have a R4ids.cn (gold). I use this R4iGold_NDSi145_Patch_NDSL.nds to update the firmware.
I have DSI 1.4.5E
Everything was good. Process successfull.
When i restar my DSi doesn't detect the R4... Why? What can i do ?
Can i fix it with NTR BOOT ? HOW?

Thx a lot !