Which tool to read VAG BOSCH EDC15P+ ECU on bench

Question before entering:
I have some trouble with my spare EDC15P+ ECUs.  I have now invested in a MPPS V21 because of its booting capabilities!  But No matter what i do, MPPS keeps saying “Booting of ECU failed” or it freezes during connection establishment. I have tried this om 3 different ECU’s with bad flash and 2 PC’s.
The procedure i use:
Generic -> Micro Boot -> EDC15P -> Pin 24 to ground and Power On -> Remove ground from Pin 24 -> Select ECU ID
Happens every time and it’s driving me nuts. I have bought MPPS for the sole purpose of recovering bad ECU’s, so i really hope that some of you maybe can help me with this.
Expert solutions:

Solution 1: with MPPS

With MPPS V21, you need luck. V21 maybe too new to this ecu.
Check with multimeter pin140 to pin44 and pin104 to pin24.
edc15-p-ecu
edc15p-ecu-2
edc15p-ecu-pinout
I bought MPPS HW12 china clone, software v16 for hardware 12. For a long time ago I had a similar problem with VW Sharan , I do not remember exactly how I was reinstall the firmware on it.  But finally it works. Here are some pictures:
mpps-v12-read-edc15p-1
mpps-v12-read-edc15p-2
mpps-v12-read-edc15p-3
mpps-v12-read-edc15p-4
mpps-v12-read-edc15p-5

Solution 2:

MPPS V13 no problem on this ecu
I try read with kess v2 and mpps v21 edc15p+ and I get error, but with mpps v13 no problem to reading this ecu on table.
So i finally got my spare ECU’s working again. I ordered a MPPS v13 ecu flasher, and that one was able to bootflash all the ECU’s.

Solution 3:

Kess v2 master read EDC15P+ on bench on issues
Testing edc15p+ of a Seat Ibiza
kess-v2-read-edc15p-1
kess-v2-read-edc15p-2
kess-v2-read-edc15p-3
kess-v2-read-edc15p-4
kess-v2-read-edc15p-5
kess-v2-read-edc15p-6
kess-v2-read-edc15p-7

Solution 4: 

Fgtech Galletto V54 on bench Writing vw EDC 15 P+ no problem
VW pasat 1.9 PD writing edc 15p+ 115 mph up to 130mph and egr off.
fgtech-read-edc15p-1
fgtech-read-edc15p-2
fgtech-read-edc15p-3
fgtech-read-edc15p-4
fgtech-read-edc15p-5
fgtech-read-edc15p-6
fgtech-read-edc15p-7
fgtech-read-edc15p-8
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