No result after reset.You might try Reset All Settings. Go to Settings>General>scroll down to Transfer or Reset iPhone>Reset>Reset All Settings. Afterwards, you'll need to sign back in to wifi and set up Settings as you like.
No result after reset.
Local service center, not apple's own center. They told me that they extract the battery from another device and put it in my device. I was able to see the battery cycle count (20) and battery health (100%) in 3utool.Where did you get the battery replaced?