Test & Check For Iphone Direct
Helps check sensors and parts, according to App Store descriptions.
Are you asking because of a specific (e.g., battery, touchscreen) or are you evaluating a used iPhone ? Let me know, and I can suggest the best diagnostic tools for that situation. My Device Info! - App Store - Apple Test & Check for iPhone
Dial *#06# to immediately show your device’s unique IMEI number, as shown in this PCMag article. Helps check sensors and parts, according to App
Dial *3001#12345#* followed by the call button to reveal advanced network settings and cellular data information, as explained in this Wilson Amplifiers blog post . Helps check sensors and parts
Offers details about the device's system specifications. Other Ways to Test/Check Your iPhone


