no response from pcm is what winflash says, someone give me a hand?

[Osiel Luna]

first of all this is a 1994 v6 3.4 automatic transmission Camaro

I tell you in a summarized way what happened to my ECM,
I started learning the topic of tuning, I bought the usb cable to aldl to use the winflash program and I started loading tunings very well, one day almost when I finished loading the tuning it was interrupted and then I could not try to read again nor write anything in the ECM (no respronse from ecm), ok i thought that the flash memory or chip flash had died and decided to take the chip from another ecm and solder it replacing it, result? (not respronse from pcm) they turn on the fans by turning the key in the swich position and the engine starts 2 seconds and turns off (before the accident that killed the ecm it turned on perfect the engine), they will ask why not just use the other ecm that they had obtained and the answer is that it simply does not start the engine in a stable way as with the original one that broke, it surely needs an expensive repair since you can see that Someone has removed electronic components but left enough to be able to read and write well, what is it that prevents even a scan?
I am surprised that at the damaged ecm from which I removed the flash chip, I can perform a scan with scann9495, even start the writing process with winflash, but obviously it stops mid-process because it no longer has its flash memory, and the ecm at to pass the flash memory I can not even do a scan is unable to connect with my laptop, I leave some screenshots

ah I forgot, I found out by disassembling all the ecm that not only has a flash chip as I thought I saw that it has another identical on the card of connectors A and B black and white,
the chip it replaced was only on the side of the blue C connector.
IMG-20200508-WA0064.jpgScreenshot_20200513_220504_ph.spacedesk.beta.jpgScreenshot_20200513_220918_ph.spacedesk.beta.jpgScreenshot_20200513_221026_ph.spacedesk.beta.jpg
the screenshots of winflash were taken doing a bin file write with the welding job done, before doing the transplant the donor ecm accepted a completely satisfactory read and write with winflash

I know that the wording of my English is not good because I use a translator so if something is not understood please tell me to edit it


Thank you for reading

Osiel Luna