"I'm getting the same error on my APM 2.5 (not 2.5.x). 3.3V regulator is fine. Baro and compass tests run fine in the CLI. I tried what you suggested, squeezing the chip. That didn't help. Any ideas what might be wrong? i have the sam issue as you!"

"I have the same issue!!  3.3V regulator is fine . but still No Dataflash Inserted, i thank the issue is in the dataflash."