Unable to send kernelcache

[Djayb6]

Hi, so I successfully built the ramdisk, and when I'm trying to send it with tetheredboot, iBSS and ramdisk are uploaded, but not the kernelcache or a bootlogo. Here is the error :

  Uploading ramdisk.img3 to device
   [==================================================] 100.0%
   libusb:error [darwin_transfer_status] transfer error: device not responding (value=0xe00002ed)
  Uploading kernelcache.release.n90 to device
  libusb:error [submit_control_transfer] control request failed: no connection to an IOService
  Unable to upload kernelcache
  Unknown error"

My iphone 4 is on stock 4.1, I know the issue doesnt come from my iBSS patch because I can boot tethered,

Thanks for your help !

Note : I had also send a ramdisk on 4.2.1 jb with Monte, where I had modified the launchd to just copy the "Files" dir with this :

    ifdef COPY_FILES
puts("Copying file\n");
mkdir("mnt/private/var/files", 0755);
cp("/files", "/mnt/private/var/files");
    endif

In this case everything was uploaded, but the ramdisk didnt seem to boot, it was stuck on white screen.