Try flashing this bins.
They are split for e and t side.

Before programming the chips make sure you erase them.
After the write is complete, test read them and make comparison.

If the chips are flashed correctly and there is still no communication, there is a chance you flipped them, or there is a bad solder. Double check all the solders with magnifying glass to be sure.
Stoch chips are very durable and should last 100000 write erase cycles.

Can I ask you what programmer you`re using and what type of chips.

Also t side is responsible for communication. You can still manage to connect with blank eside chip, but the engine won`t run.