It
isn't often that Apple gives specific directions about how to fix your
problem! Restoring the iPhone 4S will erase everything on it, so make
sure everything on the iPhone 4S is stored elsewhere prior to restoring.
To restore, connect your iPhone 4S to a computer with iTunes installed.
Click "Restore" on the iPhone 4S summary page (click on your iPhone
icon on the left menu to find this page). Follow the directions to
restore. If your iPhone 4S displays the text "Please wait. Very Low
Battery," leave it plugged in. This charges the iPhone 4S enough to be
able to restore. If the iPhone 4S hangs on this screen for long periods
of time, you may need a new battery.
Force restore mode
If
your iPhone 4S is hanging with an Apple logo, or exhibiting some other
software problem that prevents iTunes from recognizing it, you can force
it into recovery/restore mode and then use iTunes to restore the software. If
the device is powered off, plug one end of your USB cable into the
iPhone 4S and leave the other end disconnected. Press down on the Home
button, and keep holding it down while you plug the USB cable into your
computer. After 5-10 seconds, you should see a "Please Connect to
iTunes" image on the iPhone 4S, and iTunes should prompt you to restore
the software; follow the prompts and the instructions given above. If
the device is powered on, hold down both the power and home buttons
until the device reboots and displays the "Connect to iTunes" image
(generally, 5-15 seconds).God bless you
Delete some unnecessary files in your phone memory like images and videos. Go to your phone gallery and delete some of those. And if you want to use the memory card as phone message storage then go to Messaging - Option - Settings - Other and then Memory in Use, select your memory card.But if your phone is infected with a virus then you need to format your phone. One sign of infection is your phone keep sending a message randomly from your contacts without your consent.Use these code and enter it to format your phone:*#7370# and then the default code is 12345Take note: Make sure you back-up your contacts or any other important inside your phone.Hope I make it clear and does makes sense
There are two types of lock.
A consumer set passcode lock. That is easy, you just do a hard reset, which deletes all the data and reloads the software as a clean install.
Or it is locked with a PUK Lock aka a SIM Lock.
https://www.fixya.com/support/r26056685-phone_asking_puk_code
..
You can take emergency action to avoid the data losing or reduce the data lost to the least as follows: 1) Get out your phone from the water ASAP, and remove and battery and take out the SIM card to reduce the loss or damage on the device; 2) Don't move or shake the phone frequently, so that the water will not run around your mobile phone inside; 3) Wrap the device with cloth or handkerchief for a few minutes, and then turn off your phone, and place it into a jar or a bag filled with rice for a couple of days. But if you find something important are lost,like contacts, don't worry, you can ask for help from MobiKin Doctor for Android (Windows/Mac). Step 1: No matter which brand of your Android device is, just connect your device to the computer with USB cable Step 2: Files on your Android have been categorized and displayed on the interface. Tick off these data types you want to recover back and click "Start" button to let the Android data recovery program scan your Huawei P10. Step 3: When the scan is finished, you can preview the scanned out data, find and mark the data you wish to restore and hit "Recover" button to save them on your personal computer without losing. It's very easy.Try it.Hope it could help you. A YouTube Guide for you: Read More: How to Recover Data from Water Damaged Android Phone or Tablet How to Use MobiKin Doctor for Android
If you want to unlock a device that's locked to our network, you'll need a Network Unlock Code (NUC). If you already have one, you can unlock your phone.