[HTC One X] ms0:
I dont really know how to do anything with nvflash (I'm n00b) but i tried the version for linux (somewhere here) and comands have "bootloader" word , so i thing it is for tegra . Also nvidia site is now down and you can't download anything. I dont know if anyone needs this but here is output for script

:

Nvflash v1.1.54599 started
--help command usage ->
displays all supported nvflash commands with usage and description

--cmdhelp command usage ->
nvflash --cmdhelp <cmd>
-----------------------------------------------------------------------
used to display usage and description about a particular command cmd
-----------------------------------------------------------------------

--resume command usage ->
nvflash --resume --read <part id> <filename> --bl <bootloader> --go
-----------------------------------------------------------------------
must be first option in command line, used when device is looping
in 3pserver which is achieved when a command of nvflash is executed
either without sync or go or both, can be used with all nvflash commands
-----------------------------------------------------------------------

--create command usage ->
nvflash --bct <bct> --setbct --configfile <cfg> --create --odmdata <N> --bl <bootloader> --go
-----------------------------------------------------------------------
used to do full initialization of the target device using the config file
cfg start from creating all partitions, formatting them all, download
images to their respective partitions and syncing bct at end
-----------------------------------------------------------------------

--setboot command usage ->
nvflash --setboot N --bl <bootloader> --go
-----------------------------------------------------------------------
used to set partition N as bootable to already flashed device so that
next time on coldboot, device will boot from bootloader at partition N
must be used only for bootloader partitions
-----------------------------------------------------------------------

--format_partition command usage ->
nvflash --format_partition N --bl <bootloader> --go
-----------------------------------------------------------------------
used to format patition N in already flashed device making it empty
-----------------------------------------------------------------------

--verifypart command usage ->
nvflash --bct <bct> --setbct --configfile <cfg> --create --odmdata <N> --verifypart N --bl <bootloader> --go
-----------------------------------------------------------------------
used to verify contents of partition N in device, hash is calculated
and stored while downloading the data in partition and after all images
are downloaded, content is read back from partition N calculating hash
and matching it with stored hash, use N=-1 for verifying all partitions
must be used with --create command
-----------------------------------------------------------------------

--download command usage ->
1. nvflash --download N <filename> --bl <bootloader> --go (in nvprod mode)
2. nvflash --blob <blob> --setblhash <bct> --configfile <cfg> --download N <filename> --bl <bootloader> --go (in odm secure mode)
-----------------------------------------------------------------------
used to download filename in partition N into already flashed device
command 2 is used only for downloading the bootloader in secure mode,
it gets encrypted bct from sbktool containing hash of updated bootloader
to be downloaded. This bct is flashed to IRAM and update the system bct
with new hash of updated bootloader. In all other cases command 1 is used
Partition number N can be found from cfg file used for flash earlier
-----------------------------------------------------------------------

--read command usage ->
nvflash --read N <filename> --bl <bootloader> --go
-----------------------------------------------------------------------
used to read partition N from already flashed device into filename
Partition number N can be found from configuration file used while flash
-----------------------------------------------------------------------

--rawdevicewrite command usage ->
nvflash --rawdevicewrite S N <filename> --bl <bootloader> --go
-----------------------------------------------------------------------
used to write filename into N sectors of media starting from sector S to
already flashed device
-----------------------------------------------------------------------

--rawdeviceread command usage ->
nvflash --rawdeviceread S N <filename> --bl <bootloader> --go
-----------------------------------------------------------------------
used to read N sectors of media starting from sector S from already
flashed device into filename
-----------------------------------------------------------------------

--getpartitiontable command usage ->
nvflash --getpartitiontable <filename> --bl <bootloader> --go
-----------------------------------------------------------------------
used to read partition table in text from already flashed device into filename
-----------------------------------------------------------------------

--updatebct command usage ->
nvflash --bct <bct> --updatebct <bctsection> --bl <bootloader> --go
-----------------------------------------------------------------------
used to update some section of system bct(bctsection) from bct specified
this command is run in 3pserver. As of now, bctsection can be SDRAM which
updates SdramParams and NumSdramSets field of bct, DEVPARAM updates
DevParams, DevType and NumParamSets fields and BOOTDEVINFO updates
BlockSizeLog2, PageSizeLog2 and PartitionSize fields of system bct
-----------------------------------------------------------------------

--setblhash command usage ->
nvflash --blob <blob> --setblhash <bct> --configfile <cfg> --download N
<filename> --bl <bootloader> --go (in odm secure mode)
-----------------------------------------------------------------------
used to download bootloader in secure mode into already flashed device
it updates the hash value of updated bootloader to be downloaded, from
encrypted bct got from sbktool, into system bct in miniloader
-----------------------------------------------------------------------

--setbct command usage ->
as in full fledged nvflash command
-----------------------------------------------------------------------
used to download bct to IRAM, must be used with --sync command to update
it in mass storage.
-----------------------------------------------------------------------

--getbct command usage ->
nvflash --bct <filename> --getbct --bl <bootloader> --go
-----------------------------------------------------------------------
used to read back the BCT from already flashed device to user specified
filename, read in clear form whether device is secure or non-secure
-----------------------------------------------------------------------

--getbit command usage ->
nvflash --getbit <filename> --bl <bootloader> --go
-----------------------------------------------------------------------
used to read back the bit table to filename in binary form in miniloader
-----------------------------------------------------------------------

--dumpbit command usage ->
nvflash --dumpbit --bl <bootloader> --go
-----------------------------------------------------------------------
used to display the bit table read from device in text form on user
terminal. Also gives info about bct and various bootloaders present in
media, normally used for debugging cold boot failures
-----------------------------------------------------------------------

--odm command usage ->
nvflash --odm CMD data --bl <bootloader> --go
-----------------------------------------------------------------------
used to do some special diagnostics like sdram validation, fuelgauge etc
each CMD has data associated with it
-----------------------------------------------------------------------

--go command usage ->
as in full fledged nvflash command
-----------------------------------------------------------------------
used to boot bootloader after nvflash completes instead of looping in
3pserver in resume mode, however sync command is also required to get
out of resume mode, can be used with all nvflash commands
-----------------------------------------------------------------------

--obliterate command usage ->
nvflash --configfile <cfg> --obliterate --bl <bootloader> --go
-----------------------------------------------------------------------
used to erase all partitions and bad blocks in already flashed device
using partition info from configuration file cfg used in nvflash earlier
-----------------------------------------------------------------------

--configfile command usage ->
as in full fledged nvflash command
-----------------------------------------------------------------------
used to specify configuration file containing info about various partitions
to be made into device, their sizes, name and other attributes
-----------------------------------------------------------------------

--bct command usage ->
as in full fledged nvflash command
-----------------------------------------------------------------------
used to specify bct file containing device specific parametrs like
SDRAM configs, boot device configs etc. This is again modified by device
to include info about bootloader, partition table etc
-----------------------------------------------------------------------

--blob command usage ->
nvflash --blob <blob> --bct <bct> --setbct --configfile <cfg> --create --odmdata <N> --bl <bootloader> --go
-----------------------------------------------------------------------
used for nvflash in odm secure devices, can be used with any nvflash commands
blob contains encrypted and signed RCM messages for communication b/w nvflash
and bootrom at start, encrypted hash of encrypted bootloader(used with --bl
option) for it's validation by miniloader and nvsbktool version info
-----------------------------------------------------------------------

--bl command usage ->
as in full fledged nvflash command
-----------------------------------------------------------------------
used to specify bootloader which will run 3pserver on device side after
it is downloaded by miniloader in SDRAM, normally used with all commands
-----------------------------------------------------------------------

--odmdata command usage ->
as in full fledged nvflash command
-----------------------------------------------------------------------
specifies a 32 bit integer used to select particular instance of UART
determine SDRAM size to be used etc. Also used for some platform specific
operations, it is stored in bct by miniloader
-----------------------------------------------------------------------

--deviceid command usage ->
nvflash --bct <bct> --setbct --configfile <cfg> --create --odmdata <N> --deviceid <devid> --transport <transport_mode> --bl <bootloader> --go
-----------------------------------------------------------------------
used to set the device id of target in fpga emulation or simulation mode
depending on chip, can be hex or dec, only used with --transport option
-----------------------------------------------------------------------

--transport command usage ->
nvflash --bct <bct> --setbct --configfile <cfg> --create --odmdata <N> --deviceid <devid> --transport <transport_mode> --bl <bootloader> --go
-----------------------------------------------------------------------
used to specify the means of communication between host and target
USB, JTAG and Simulation are three modes supported as of now. JTAG is
for fpga emulation, Simulation is for nvflash in simulation mode and
default is USB, used in normal cases while interaction with device
-----------------------------------------------------------------------

--devparams command usage ->
nvflash --bct <bct> --setbct --configfile <cfg> --create --odmdata <N> --deviceid <devid> --transport <transport_mode> --devparams <pagesize> <blocksize> <totalblocks> --bl <bootloader> --go
-----------------------------------------------------------------------
used to pass logical pagesize, erase block unit size and total number of
blocks for nvflash in simulation mode. As of this write, pagesize = 4K
blocksize = 2M and totalblocks = media_size/blocksize. These values can be
obtained using NvDdkBlockDevGetDeviceInfo api, a wrapper of SdGetDeviceInfo
api in block driver, used only for nvflash in simulation mode
-----------------------------------------------------------------------

--setbootdevtype command usage ->
nvflash --setbootdevtype S --bl <bootloader> --go
-----------------------------------------------------------------------
used to set boot device type fuse to S which tells boot media to boot from
used only in miniloader since cold boot uses bootrom and all settings get
reset at that time. Unlike miniloader, BL/kernel uses pinmuxes not fuses
S can be emmc, nand_x8, spi etc
-----------------------------------------------------------------------

--setbootdevconfig command usage ->
nvflash --setbootdevconfig N --bl <bootloader> --go
-----------------------------------------------------------------------
used to set boot device config fuse to N which tells slot of boot device
to boot from, used only in miniloader since cold boot uses bootrom and
all settings get reset at that time. BL/kernel uses pinmuxes not fuses
N is 33 for sdmmc4 pop slot and 17 for sdmmc4 planar slot of whistler
-----------------------------------------------------------------------

--diskimgopt command usage ->
nvflash --bct <bct> --setbct --configfile <cfg> --create --diskimgopt <N> --odmdata <N> --bl <bootloader> --go
-----------------------------------------------------------------------
used to convert .dio or a .store.bin file to the new format (dio2) by
inserting the required compaction blocks of size N, can be used with
any nvflash commands which downloads an image to device
-----------------------------------------------------------------------

--quiet command usage ->
nvflash --quiet --bct <bct> --setbct --configfile <cfg> --create --odmdata <N> --bl <bootloader> --go
-----------------------------------------------------------------------
used to suppress the exccessive console output like status info while send
or recieve data b/w host and device, can be used with all nvflash commands
-----------------------------------------------------------------------

--wait command usage ->
nvflash --wait --bct <bct> --setbct --configfile <cfg> --create --odmdata <N> --bl <bootloader> --go
-----------------------------------------------------------------------
used to wait for USB cable connection before start executing any command
can be used with any commands of nvflash
-----------------------------------------------------------------------

--format_all command usage ->
nvflash --delete_all/--format_all --bl <bootloader> --go
-----------------------------------------------------------------------
used to format/delete all existing partitions on already flashed device
-----------------------------------------------------------------------

Sorry :( i dont know how spoilers work on XDA