"It felt like the phone had decided to go on strike," Maya says. "I hadn’t changed any settings. I was just trying to work."

"It was a simple fix," Maya says, "but for twenty minutes, I thought I had lost the contract. The phone is supposed to make communication easier, but sometimes you have to know exactly where the levers are to make it work."

The blue progress bar zipped across the screen. Delivered.

: Open the conversation with that person, tap their name/photo at the top, select info , and tap Unblock this Caller at the bottom. 2. Fixing the "Message Blocking Is Active" Error

If you find yourself staring at that error message, here is the diagnostic playbook to dismantle the invisible wall.