Random contact deletion on my Sony Z3+

[monkey]

My Sony Z3+ has been having strange problem wherein the contacts stored on it get deleted randomly. In 6 months I lost atleast 10 contacts in this manner without me deleting any of them (even accidentally). What can be the problem/solution for it? I have Android 6.0.1 installed with all updates.

 

[SaiyanGoku]

My Sony Z3+ has been having strange problem wherein the contacts stored on it get deleted randomly. In 6 months I lost atleast 10 contacts in this manner without me deleting any of them (even accidentally). What can be the problem/solution for it? I have Android 6.0.1 installed with all updates.

Disable contact sync with google account. And backup all the contacts locally using super backup.

 

[monkey]

I'll try your suggestion. Currently the phone is not with me.

 

[monkey]

I have disabled contact sync but still the numbers are getting deleted. What more should I do?

 

[sling-shot]

Upload all the contacts to GMail. I think that solved my problem too.

 

[Tomal]

I don't know the solution but you can recover it as soon as you find it lost . Try GT Recovery.