Tricore BOOT Simos PCR2.1 adapter Kess- Ktag

i’ve previous ultimate week making an attempt many thinks on pcr2.1 and bench flashing .
the whole thing wrote under is examined and showed operating by way of me on 4 ecus /automobiles, most effective on Chinese language clone no longer transformed unit : fgtech galletto v54 ^(http://www.obdii365.com/wholesale/v54-fgtech-galletto-4-master-bdm-tricore-obd-function.html)ktag 6.070 ^(http://www.obdii365.com/wholesale/ktag-ecu-programming-with-new-hardware.html)kess v2 v4.036 ^(http://www.obdii365.com/wholesale/new-kess-v2-unlimited-token-version.html), ksuite as much as 2.15
pcr 2.1 wish to be as you recognize unlocked ahead of writing .
I desire ksuite to paintings in this eu (kess v2 or ktag ^(http://www.obdii365.com/wholesale/new-kess-v2-plus-ktag-master-version.html)) , ksuite appear to be extra solid than fgtech on pcr however paintings too : i am getting error with fgtech on one pcr2.1 , i don’t know why , and no downside with ksuite . 
Similar day i take a look at every other pcr with fgtech and no downside , the one fgtech don’t wish to paintings with paintings flawlessly with ksuite and automotive run adequate .
So you probably have each gear , desire ksuite appear to be extra solid .
After you get you eu unlocked in boot mode , with fgtech simply take away boot and left pin connection , and browse or write on bench .
On ksuite gear , you’ll be able to’t learn or write with ktag , most effective release . (alientech wish to paintings on it…)
with kess it’s adequate , BUT , you’ll be able to’t use the tricore module !
The issue is that the harness is plugged within the tricore module . so you must construct your personal bench cable : simply get a obd feminine plug on a scrapyard , and cord +12 gnd and will h/l (kline isn’t used however you’ll be able to twine it it is going to make a common bench cable) .
The trick to get conversation error loose on each fgtech and kess cable is to make use of a robust exterior psu .
when the instrument identity or learn or write the european , the european will carry out a type of reset , and the large cap throughout the eu will cross charging , inflicting a drop in voltage in case your psu isn’t sturdy sufficient to maintain it . THAT WILL CAUSE THE COMM ERROR . That’s the one factor you must take care . 
when i made take a look at with many little psu (like one you get along with your gear) i’ve observed 7 volts drop a while , so the european is shutting down and no comm . 
you’ll be able to use laptop atx psu modded to paintings on bench (inexperienced twine plugged on flooring to energy on ) i feel anything else that can give +12v 2A will probably be adequate . i didn’t want greater than 12v only a solid 12V . 14v volatile might not be adequate 
that’s why at the automotive you haven’t any downside , automotive battery can maintain the cap charging present .
There is not any immo led to comm error in this eu , psu is the issue !!

So in conclusion : excellent psu and obd hand-crafted bench cable , take away tricore module on kess = 100% examined bench flashing resolution for pcr2.1 .