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NBT HU Bootloader Repair possible ?
22-11-2019, 16:23 PM,
Post: #1
NBT HU Bootloader Repair possible ?
Hello,

have here an nbt with coruppted bootoader, cannot ping it over ethernet and it dioes not respond, only reboots itself.
Is there a possibilty to flash bootloader over jtag or serial port ??
Have anybody some experience with that and can give some hints ?

Thank you.
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22-11-2019, 22:48 PM,
Post: #2
RE: NBT HU Bootloader Repair possible ?
do you have communication trought serial port?
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23-11-2019, 06:12 AM,
Post: #3
RE: NBT HU Bootloader Repair possible ?
I don´t know.
How to establish communication between serial port, with a usb to rs232 adapter ?
And if this is possible, can i flash then the bootloader ??
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23-11-2019, 11:12 AM,
Post: #4
RE: NBT HU Bootloader Repair possible ?
Ok i have established serial connection and opened ssh and login with root and root password...
what now ???
How can i flash new boodloader or recover firmware ???
what commands i have to use ??

Is this nbt unit equal to the audi mmi unit.
There are some progs for audi mmi to flash ??
Please help......
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23-11-2019, 12:43 PM,
Post: #5
RE: NBT HU Bootloader Repair possible ?
OnOffDSICommander boloreset
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24-11-2019, 16:24 PM,
Post: #6
XZBMW  RE: NBT HU Bootloader Repair possible ?
(23-11-2019, 11:12 AM)amigo74 Wrote:  Ok i have established serial connection and opened ssh and login with root and root password...
what now ???
How can i flash new boodloader or recover firmware ???
what commands i have to use ??

Is this nbt unit equal to the audi mmi unit.
There are some progs for audi mmi to flash ??
Please help......

did you succeed?

I have too NBT with damaged boot, it is not displayed by ESYS-TOOL-ISTA, but the strange thing is that when I log in via SSH in serial, it continues to reboot without being able to establish the connection
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24-11-2019, 23:05 PM,
Post: #7
RE: NBT HU Bootloader Repair possible ?
Thats because there is a HW problem inside unit.
Flashing is not the solution to all the problems smile
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25-11-2019, 07:26 AM,
Post: #8
RE: NBT HU Bootloader Repair possible ?
Use serial console and execute OnOffDSICommander boloreset.
I have succeeded !
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25-11-2019, 09:52 AM,
Post: #9
RE: NBT HU Bootloader Repair possible ?
Boloreset is used to enter bootloader mode,he most likely doesnt even have anything on serial console.
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25-11-2019, 11:28 AM,
Post: #10
RE: NBT HU Bootloader Repair possible ?
I have used these command through serial console and the nbt stops resetting itself and i could flash it with e-sys !!!!
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[-] The following 1 user says Thank You to amigo74 for this post:
  • Hoborg


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