I have a weird Issue with my brand new Oneplus 3. It's not connecting to 2G network, or it connects, but calling/data does not work.

  • when switching from 3G to 2G, it registers to network, even shows Edge sign, but calling and data is not working
  • when switching from 4G to 2G, it even does not connect It can be seen on a video I made - https://www.youtube.com/watch?v=CPlk8EEQsPE

What I have tried:

  • 5 SIM cards from 3 different operators. All have the same problem, except T-Mobile, which was able to make a call once in +-10 attempts
  • flashing various versions of Oxygen OS (3.1.x, latest 3.2.7); flashing CyanogenMod latest; eflashed whole phone by Oneplus support using MSMDownloadTool
  • hard resets, ##4626## menu settings etc...

Nothing works. Could not find anywhere on the internet much more solutions to this. Guess it's hardware issue fro RMA? Anyone else encountered this issue?

1 Answer 1


This has all the symptoms of a hardware issue. I would get in contact with OnePlus customer support and ask what they can do for you. Since the device is new, they will likely replace it.

  • did exactly that... but kind of don't want to be 2 weeks without my phone, so still looking for some other solutions, till they send me some delivery pickup label or smth...
    – PiTRiS
    Nov 1, 2016 at 14:37

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