XBReboot v0.05 has now also been released for Zephyr, Falcon and Jasper-16mb motherboards.
All available with the latest 8955_1 patch revision now, so each 16mb motherboard can now run XBR v0.05 8955_1! Only support for Jasper 256/512mb motherboards.


* HowTo:
1) Extract KV and Config blocks from orig.bin
nandpro orig.bin: -r16 rawkv.bin 1 1
nandpro orig.bin: -r16 rawconfig.bin 3de 2

2) Inject those blocks into XBR.bin
nandpro XBR.bin: -w16 rawkv.bin 1 1
nandpro XBR.bin: -w16 rawconfig.bin 3de 2

3) Flash result
nandpro lpt: -w16 XBR.bin

Source: xboxhacker