[mothered]

Yhh I just made some fake battery fluid and created the photos

Sounds good.

Be sure It's consistent with your claim.

Can apple blacklist an iPhone  by finding the imei number from the serial number?

Every phone has a unique serial number which also Identifies the device's IMEI.

There's always the risk of a blacklist, but It's not a commonality. If It was the case, there'd hardly be any threads discussing SEing phones, Inclusive of sharing success stories.