[user_530d]

some control units cannot downgrade like DME usually

Correct. The question was still about KAFAS2.

[CEBEP]

use older psdzdata and delete all SWFL,BTLD,CAFD from SVT_IST.
!!! DO NOT TOUCH HWEL !!!

Why he needs to do that?

because when he will be calculating tal with earlier version of psdz it will not give any update as module already has later software version installed.

Lol. It will work without any "delete all". U d better try, then speak.

[furnpick]

use older psdzdata and delete all SWFL,BTLD,CAFD from SVT_IST.
!!! DO NOT TOUCH HWEL !!!

WARN events:

"[] Warning 1678, base variant identification failed for diag address, (Exception: No Bootloader found in SVK)" [C382]

I deleted 3 things and calculated the tal. an error appears[C382]

[laquangksxd]

Use the older psdzdata (i-level you want), calculate tal and flash as usual.

[szilagyilajos]

You can downgrade KAFAS with older PSDZ in ESYS tal calculation. And can flash only the KAFAS ecu.

[DayvG]

use older psdzdata and delete all SWFL,BTLD,CAFD from SVT_IST.
!!! DO NOT TOUCH HWEL !!!

WARN events:

"[] Warning 1678, base variant identification failed for diag address, (Exception: No Bootloader found in SVK)" [C382]

I deleted 3 things and calculated the tal. an error appears[C382]

 Because you listened to terrible advice from RuleNormaliai.


Simple job, just need to understand how esys works. 


1. Use older PSDZDATA
2. Connect, Tal Calculation Tab, Read FA, Save, Read ECU, Save
3. Complete Flash, calculate.
4. All ESYS does is compare the difference between current SVK and target (from psdzdata) SVK, if there is a difference it will show ACTUAL in Blue, TARGET in RED. No difference in BLACK.
5. Now you see there was NO NEED to delete anything from SVT/SVK.
6. Look at target and actual, target will/should be LOWER than actual.
7. Calculate TAL, EXECUTE.
8. Sit back and watch the numbers!

[furnpick]

use older psdzdata and delete all SWFL,BTLD,CAFD from SVT_IST.
!!! DO NOT TOUCH HWEL !!!

WARN events:

"[] Warning 1678, base variant identification failed for diag address, (Exception: No Bootloader found in SVK)" [C382]

I deleted 3 things and calculated the tal. an error appears[C382]

 Because you listened to terrible advice from RuleNormaliai.


Simple job, just need to understand how esys works. 


1. Use older PSDZDATA
2. Connect, Tal Calculation Tab, Read FA, Save, Read ECU, Save
3. Complete Flash, calculate.
4. All ESYS does is compare the difference between current SVK and target (from psdzdata) SVK, if there is a difference it will show ACTUAL in Blue, TARGET in RED. No difference in BLACK.
5. Now you see there was NO NEED to delete anything from SVT/SVK.
6. Look at target and actual, target will/should be LOWER than actual.
7. Calculate TAL, EXECUTE.
8. Sit back and watch the numbers!

Thank you. Let's do that.

[Skept]

use older psdzdata and delete all SWFL,BTLD,CAFD from SVT_IST.
!!! DO NOT TOUCH HWEL !!!

WARN events:

"[] Warning 1678, base variant identification failed for diag address, (Exception: No Bootloader found in SVK)" [C382]

I deleted 3 things and calculated the tal. an error appears[C382]

 Because you listened to terrible advice from RuleNormaliai.


Simple job, just need to understand how esys works. 


1. Use older PSDZDATA
2. Connect, Tal Calculation Tab, Read FA, Save, Read ECU, Save
3. Complete Flash, calculate.
4. All ESYS does is compare the difference between current SVK and target (from psdzdata) SVK, if there is a difference it will show ACTUAL in Blue, TARGET in RED. No difference in BLACK.
5. Now you see there was NO NEED to delete anything from SVT/SVK.
6. Look at target and actual, target will/should be LOWER than actual.
7. Calculate TAL, EXECUTE.
8. Sit back and watch the numbers!

Hi,

I do not mean to hijack this thread. Just wondering would this be the same steps to reflash a ECU to the same version it already is on?

Thanks

[DayvG]

use older psdzdata and delete all SWFL,BTLD,CAFD from SVT_IST.
!!! DO NOT TOUCH HWEL !!!

WARN events:

"[] Warning 1678, base variant identification failed for diag address, (Exception: No Bootloader found in SVK)" [C382]

I deleted 3 things and calculated the tal. an error appears[C382]

 Because you listened to terrible advice from RuleNormaliai.


Simple job, just need to understand how esys works. 


1. Use older PSDZDATA
2. Connect, Tal Calculation Tab, Read FA, Save, Read ECU, Save
3. Complete Flash, calculate.
4. All ESYS does is compare the difference between current SVK and target (from psdzdata) SVK, if there is a difference it will show ACTUAL in Blue, TARGET in RED. No difference in BLACK.
5. Now you see there was NO NEED to delete anything from SVT/SVK.
6. Look at target and actual, target will/should be LOWER than actual.
7. Calculate TAL, EXECUTE.
8. Sit back and watch the numbers!

Hi,

I do not mean to hijack this thread. Just wondering would this be the same steps to reflash a ECU to the same version it already is on?

Thanks

Nope, thats an entirely different process. Use TAL Filter editor and select the ECU you want flashed and which attributes and it will be added into your TAL Calculation.