There seem to exist different versions of the phone.

I can insert 2 nano SIM cards in the device but how to activate the second one? There is no enter PIN dialog popping up. On YouTube I saw an unboxing video that showed dual SIM support.

  • Use apps from play store like *device info / my device , etc*/ look at your purchase invoice which should have the model number to find out. Please do that first and ask.
    – beeshyams
    Feb 15, 2018 at 5:48
  • In this video for example it says SIM2 on the adapter.
    – Michael S.
    Feb 15, 2018 at 6:06
  • @MichaelS. Can you see two network icons after inserting two sims on sim tray? I think you were doubted about 4G/3G settings on both sim.
    – Rahul Gopi
    Feb 15, 2018 at 8:18
  • @beeshyams: Could you provide a link to the app please?
    – Michael S.
    Feb 16, 2018 at 6:32
  • 1
    My device. Google on Play store for device lots of other apps
    – beeshyams
    Feb 16, 2018 at 6:38

1 Answer 1


Enter download mode by powering down the device and then holding both VOL_DOWN and POWER to power it back up. It will boot to a screen saying hTC download mode.

The 3rd line of the displayed info will say something like htc_oceuhl PVT S-ON. uhl corresponds to the single-SIM variant, dugl is the international dual-SIM variant, and dtwl is the Chinese dual-SIM variant.

You can exit the mode by selecting "reboot" in the download mode menu.

  • Any chance to find out in store before buying the next one?
    – Michael S.
    Feb 16, 2018 at 6:42
  • Ask any store receptionist? You have the rights to know this info as a customer. What I offered is more of a surefire, after-purchase method and would help better in situations like buying a used device.
    – Andy Yan
    Feb 16, 2018 at 7:56

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .