How to detect if your iPhone 4 has hardware problems

The guys at Appleweblog have worked out a translation of an article published on TUAW in which they give us a series of guidelines to detect if our iPhone 4 has a hardware problem:

I quote verbatim from Appleweblog:

• Exterior appearance: The iPhone must have an immaculate finish, without nicks, scratches or dents (obvious).

• Buttons: they should all slide smoothly. Pressing them only once and in a short way, the Sleep button should lock the terminal, the Home screen should take you to the home screen or Spotlight, the Volume Up / Down the same and Mute mute the terminal (if everything is correct, you should notice the vibration motor).

• Dock connector and flash memory: If there is a problem when synchronizing the phone with iTunes - it does not recognize it or it does not load and you try another usb cable - it is probably a defect in the connector, in the event that iTunes recognizes it and gives us an error - not very usual- we will find ourselves faced with a case of corrupted memory.

• Jack connector: insert into the hole the headphones that came with the phone in the hole -to the bottom-, both headphones should reproduce sound and the controls should respond to your orders, as well as Voice Over, with which you can test the correct operation of microphone.

• Microphones and speaker: While calling, press the right button that appears on the screen (speakerphone), the sound should be clear and undistorted to you (assuming good coverage) and the same - in addition to minimal background noise - to the person you are talking to.

• Multi-touch screen: To make sure that there are no dead spots on our screen, we will open the notepad and write in vertical mode and the two horizontal ones that the mobile allows us: «Steve Jobs dreams of big hairy, sad, scruffy and xenophobic bats that fly over West Hampton, in Virginia." (The phrase does not make sense, it simply seeks to cover the maximum keyboard, for practitioners you can limit yourself to writing "qwertyuiop asdfghjkl zxcvbnm").

• Screen appearance: To check if your screen has yellowing, enter the Settings menu, the white/gray background will help you distinguish the affected areas. To see if there are dead or vague pixels - it will be difficult, due to the high density - enter iPhone dead pixel test from the terminal's browser.

• Bluetooth: If you are one of the lucky ones that you can do tethering, configure your computer to be able to receive internet from your iPhone, if they link correctly, everything is perfect. If you are from Orange and you updated the operator configuration, try connecting to the terminal with a bluetooth headset or a wireless keyboard - Apple's, for example-.

• Wi-Fi: easy, if you can connect and navigate from your home / university / work connection, it works.

• 3G-rule: If you are in an area with good coverage you should not have to do anything special to see the icon for connecting to a UMTS network. Go try the deathgrip, that you are looking forward to it ... Why is it not so bad?

• EDGE / GPRS: You have to go to Settings> General> Network and disable 3G. If where there used to be a "3G" a circle appears, you can call perfectly and navigate safari at a ridiculous speed, it works correctly.

• Performance (GPU / CPU): games with very complex graphics and textures should not be played with any kind of jerk-hang. The apps would have to be launched in the blink of an eye.

• Battery: put a video to play (repeating) with the default brightness that the iPhone comes with. The estimated duration according to Apple until the battery runs out is 10 hours, if it lasts 7 or less it is time to worry.

• Compass, GPS, Accelerometer, Gyroscope and Proximity Sensor: Sensor Monitor for iPhone will check that all these aspects are working in optimal conditions (the interface is the one shown in the first image that accompanies the entry).

Source: Appleweblog