How can I transfer my all contacts from old HTC Wildfifre android 2.1 to LG Optimus Vu I just want to transfer all contacts from old HTC Wildfire with android version 2.1 to new LG Optimus Vu with android version 4.0. I have used different apps but still I am unable to transfer contacts and an unexpected error occures. Another issue is that I can't move contacts to SD card because LG Optimus Vu does not supports SD card. Please recommend a simple and easy way or an app which is helpful to transfer contacts to the new LG optimus Vu from HTC Wildfire.
Just a few steps:


Open the contacts app on the Wildfire
Tap the menu button, select to "Export" your contacts to SDCard. This will result in a 00001.vcf file on your SDCard.
Now use any way you like to get the exported file to the Optimus:

Mail/GMail it to your account
Send it via Bluetooth
Copy to your computer, and then to the new device's internal SDCard
...

On the Optimus, open the contacts app
As above, use the Export/Import feature to import the .vcf file


If in step 3 you chose to Mail/GMail the .vcf file, you most likely will be able to open it directly from the attachment, which should cause it to be offered for import into your contacts app (I never tried that variant, so I'm not sure about it).