Google Contacts sets DOB (date of birth) to 1st Jan 1900 for my contacts by default. How can I remove this from multiple contacts at a time, or even all at once?
I have found a similar question on this Google group link which is left un-answered.
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contacts.vcfin a text editor. Ideally Notepad++ or Notepad. Not Word as it'll probably make unwanted changes to the file.
BDAY:1900-01-01and replace with
My Contactsis empty.
Browseand select your modified vcf file
Importto import the modified contacts into Google.
Bear in mind that you will lose all contact pictures. I personally use Sync.ME (available for Android and iOS) after the last desktop application I had that did this stopped working.