iPhone4 4.3.1 how to boot in to tethered mode

[Sat Mar 26 16:20:12 root@IRack ./tetheredboot -i /Users/margusja/Desktop/tetheredboot2/iBSS.n90ap.RELEASE.dfu -k /Users/margusja/Desktop/tetheredboot2/kernelcache.release.n90
Initializing libpois0n
No matching processes were found
Waiting for device to enter DFU mode
Device must be in DFU mode to continue
opening device 05ac:1227…
Found device in DFU mode
Checking if device is compatible with this jailbreak
Checking the device type
Identified device as iPhone3,1
Preparing to upload limera1n exploit
Resetting device counters
Sending chunk headers
Sending exploit payload
Sending fake data
libusb:error [darwin_transfer_status] transfer error: timed out
Exploit sent
Reconnecting to device
Waiting 2 seconds for the device to pop up…
opening device 05ac:1227…
Uploading /Users/margusja/Desktop/tetheredboot2/iBSS.n90ap.RELEASE.dfu to device
[==================================================] 100.0%
libusb:error [darwin_reset_device] ResetDevice: device not responding
libusb:error [darwin_close] USBDeviceClose: no connection to an IOService
Waiting 10 seconds for the device to pop up…
opening device 05ac:1281…
Setting to configuration 1
Setting to interface 0:0
Uploading /Users/margusja/Desktop/tetheredboot2/kernelcache.release.n90 to device
[==================================================] 100.0%
libusb:error [darwin_transfer_status] transfer error: device not responding (value = 0xe00002ed)
Exiting libpois0n

iAdTester doesn’t unzip my add

I uploaded via iTunes my test add and got error in Xcode error log console XCode -> Organizer

So I logged in to my iPhone via SSH and unzipped it there. And it worked! I managed to use my test add in iAdTester