gyr
  •  gyr
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  • Newbie Topic Starter
2020-05-06T02:50:22Z
I ve a question and hope to find answer.as known,the power class in DMEs needs working hrs resetting to be changed but how to modify it in a donor BDC/FEM/casxx.i ve experienced in cas3, the power class wouldnt be be changed even when vin and vo are written in for a certain case, unless reading eeprom and modify it handly.as expected, this situation will be the same as in BDC/FEM/CAS4.i am not sure about my expectation,could anybody explain
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abc123
  •  abc123
  • 100% (Exalted)
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2020-05-06T03:50:20Z
Well, you reset working hours and re code DME.
gyr
  •  gyr
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2020-05-06T18:19:32Z
if i reset the working hrs then,the dme will coded for fem power class which is upper and dme is top(mpower)that will lead to power downgrade.
abc123
  •  abc123
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2020-05-07T04:07:49Z
Originally Posted by: gyr 

if i reset the working hrs then,the dme will coded for fem power class which is upper and dme is top(mpower)that will lead to power downgrade.



correct

So, you want to match the FEM to the DME or more precisely to the car? Did you try the unlock / clone procedure? That should take care of this, no?
gyr
  •  gyr
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  • Newbie Topic Starter
2020-05-07T04:33:12Z
exactly,cloning not on hand although its the best solution,rather unlocking has already done as vin,isn,km and fa and flashing/coding,but power class in fem is still persisting to be changed"upper class".i can trace the power class hex in the fem but unfortunatly i cant read emulated data-flash out of spc5668 jtag processor.
abc123
  •  abc123
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2020-05-08T21:01:40Z
So you did cloning but the power class did not transfer? This does not make sense.
gyr
  •  gyr
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2020-05-08T22:26:14Z
cloning what i know is reading program and data flash and write them in another fem,cas or DME or whatever.i just did unlock, it doesnt mean cloning,unlocking authorizes you to read and write certain parameters as vin,isn,km even hrs resetting so what doesn't make sense
abc123
  •  abc123
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  • Advanced Member
2020-05-08T22:40:01Z
This procedure, will not transfer power class?

Fem/BDC cloning if you have key for original fem and used one without key
1 .unlock original fem with key
2 .unlock and reset mileage on used fem with option 3
3 .connect original and save fa from original
4 .go to cas replacement and proceed
5 .after cloning complete load original fa to used fem
6 .go out of coding/programming and come inside again and program used fem
7 .finish
gyr
  •  gyr
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  • Newbie Topic Starter
2020-05-08T23:55:25Z
ok you re right,just one hex needed to be changed and all ok.fem and bdc need jtag programmer to read and write then time for playing