This is how you do it -Step 1. Choose a picture for your friend which you want to
replace with your friend profile pic anddownload it. -Step2. Now Rename the
Image with your Friends Mobile Number. For example , i will change it to
9785****** of my friend . -Step3.Resize the image to 561 * 561 using paint by
following these steps:
- Right Click the image and "Open With">Paint
- Press Ctrl + W and check "by Pixels"
- Set the values to 561 Height and 561 Width
- Ctrl + S to Save it.
-Step 4. now just save the image into your device on the path “/sdcard/WhatsApp
/Profile Pictures”. -Step 5. Turn of Wifi or Deactivate data network for a
while.(till you prank your friend). as his realprofile picture will
not Download then . Step 6: Show and Appreciate him for his new profile
picture by showing him or say you have hiswhatsapp hack and he is trolled:D