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NBT EVO ISTEP DOWNGRADE
23-01-2022, 10:20 AM,
Post: #1
NBT EVO ISTEP DOWNGRADE
To upgrade to nbt 2 evo device ID 6, I flashed it with version 0321. This was the first update job I did and I was a novice. A friend from the forum helped with future and vo unlocked. After coding with future, the combined protection became active. hutool 2.6 cannot generate 170 fsc code. In order to overcome this problem, I need to downgrade to version 0718. I searched the forum about this. Could you please let me know how I can do it so that I don't do the same inexperience again.

respects.


Attached Files
FSC INFO.txt
File Type: .txt
Downloaded: 91 times
Size: 6.35 KB


BMW_MB REMOTE CODING. FBS4 RENEW CRD3,MED17,EDC17
MGU KAFAS4 RENEW.
7DCT300 EGS ISN RESET
F Series Remote EGS ISN Reset
G Series Remote 8HP50 ISN Reset 
NBTEVO Regional Change FSC
MERCEDES OFFLINE ALL UNIT CODING.
AMG MENU ACTIVATION.
Mercedes Anti Theft Code.
23-01-2022, 10:30 AM,
Post: #2
RE: NBT EVO ISTEP DOWNGRADE
Yes, tool32 with dev_uds.prg. Erase v850 and repair nand after that.

After that calculate tal with wished i-step and flash
23-01-2022, 10:58 AM, (This post was last modified: 23-01-2022, 11:00 AM by brunoman.)
Post: #3
RE: NBT EVO ISTEP DOWNGRADE
Currently your i-step ,cannot downgrade  or erase V850 with dev_uds.prg

use HU_3.0 or HU_engineering Tool.
23-01-2022, 11:31 AM,
Post: #4
RE: NBT EVO ISTEP DOWNGRADE
(23-01-2022, 10:58 AM)brunoman Wrote:  Currently your i-step ,cannot downgrade  or erase V850 with dev_uds.prg

use HU_3.0 or HU_engineering Tool.

Are you sure about this? I remember myself doing it with dev_uds a while ago. Could be wrong tho
23-01-2022, 13:28 PM,
Post: #5
RE: NBT EVO ISTEP DOWNGRADE
(23-01-2022, 11:31 AM)alexnaoumov Wrote:  
(23-01-2022, 10:58 AM)brunoman Wrote:  Currently your i-step ,cannot downgrade  or erase V850 with dev_uds.prg

use HU_3.0 or HU_engineering Tool.

Are you sure about this? I remember myself doing it with dev_uds a while ago. Could be wrong tho

Yes, can’t do clear v850 with _dev_uds.prg with new firmware (I can’t remember start from which ilevel, maybe 19-11)
23-01-2022, 17:27 PM,
Post: #6
RE: NBT EVO ISTEP DOWNGRADE
(23-01-2022, 10:20 AM)donjuan020 Wrote:  To upgrade to nbt 2 evo device ID 6, I flashed it with version 0321. This was the first update job I did and I was a novice. A friend from the forum helped with future and vo unlocked. After coding with future, the combined protection became active. hutool 2.6 cannot generate 170 fsc code. In order to overcome this problem, I need to downgrade to version 0718. I searched the forum about this. Could you please let me know how I can do it so that I don't do the same inexperience again.

respects.
Do you know what version of psdz to use for istep 0718?
24-01-2022, 22:59 PM,
Post: #7
RE: NBT EVO ISTEP DOWNGRADE
Yes use psdzdata v4.14.14 or psdzdata v4.15.12. Send me a PM and i can share them tomorrow.

Creator of FlashXTool v8 - link
CarPlay activations on Entrynav2 and NBTevo units
...more on FlashXCode.com

Whatsapp : +40741888845


Reputation: +1 - maxxsp [+1]
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27-01-2022, 15:34 PM,
Post: #8
RE: NBT EVO ISTEP DOWNGRADE
(24-01-2022, 22:59 PM)flashxcode Wrote:  Yes use psdzdata v4.14.14 or psdzdata v4.15.12. Send me a PM and i can share them tomorrow.
Thank you! I will PM you smile
30-01-2022, 00:07 AM,
Post: #9
RE: NBT EVO ISTEP DOWNGRADE
What should I do now to solve my problem? What is the output path for flash downgrade?

BMW_MB REMOTE CODING. FBS4 RENEW CRD3,MED17,EDC17
MGU KAFAS4 RENEW.
7DCT300 EGS ISN RESET
F Series Remote EGS ISN Reset
G Series Remote 8HP50 ISN Reset 
NBTEVO Regional Change FSC
MERCEDES OFFLINE ALL UNIT CODING.
AMG MENU ACTIVATION.
Mercedes Anti Theft Code.
30-01-2022, 05:48 AM,
Post: #10
RE: NBT EVO ISTEP DOWNGRADE
erase the V850

i can do it for you remotely

From 0000000 you can go to any i-Level you want


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