Emc 2875 no power

Flashing a EMC 2875 and it dumps as it should, I’ve edited dump, erased chip, write clean dump and I get no power at all. Charger doesn’t light but if I plug into my normal pro and swap back, I get green light only but no powering if MacBook. No fans, no attempt to boot at all. I’ve written back original dump and same thing??
Nothing damaged or changed and I use same pi procedure with easy flash adapter.
Flash verifies fine after each write of og dump and cleaned dump.

Just to add, dumps are fine and compare against each other ok

I’m stumped with this

Have been through the forum looking for posts with similar issues and tried all power states, disconnecting battery and draining power etc and just nothing?
Can still read and write the chip with no issues and writes are verified each time