# Mobile Support **URL:** https://onlykey.discourse.group/c/mobile-support/8.md [Latest](https://onlykey.discourse.group/latest.md) · [Categories](https://onlykey.discourse.group/categories.md) --- ## [About the Mobile Support category](https://onlykey.discourse.group/t/about-the-mobile-support-category/15)
**Author:** [@t11](https://onlykey.discourse.group/u/t11)\ **Replies:** 0
Discussion and support for loading OnlyKey firmware, see Using OnlyKey with Mobile Devices (Android and iOS) in our knowledge base here. --- ## [Unable to use as passkey](https://onlykey.discourse.group/t/unable-to-use-as-passkey/1536)
**Author:** [@therealgoth](https://onlykey.discourse.group/u/therealgoth)\ **Replies:** 1\ **Last updated:** [April 4, 2026, 8:12pm UTC](https://onlykey.discourse.group/t/unable-to-use-as-passkey/1536 "2026-04-04T20:12:28Z")
I’m trying to use my Onlykey as a passkey with a Google Pixel 8 Pro. It works fine when for password input, however when trying to use it as a passkey there is some strange behavior. I follow the prompts for passkey se… --- ## [On-screen keyboard on newer iOS phones?](https://onlykey.discourse.group/t/on-screen-keyboard-on-newer-ios-phones/1485)
**Author:** [@Rich66](https://onlykey.discourse.group/u/Rich66)\ **Replies:** 2\ **Last updated:** [October 6, 2025, 6:25am UTC](https://onlykey.discourse.group/t/on-screen-keyboard-on-newer-ios-phones/1485 "2025-10-06T06:25:07Z")
How in the world do you pull up the on-screen keyboard on newer iOS with the OnlyKey duo plugged in? I have searched online and have found no solutions. This is quite an oversight and very frustrating. I just recommende… --- ## [How to set up on mobile phone](https://onlykey.discourse.group/t/how-to-set-up-on-mobile-phone/555)
**Author:** [@Michele](https://onlykey.discourse.group/u/Michele)\ **Replies:** 5\ **Last updated:** [October 4, 2025, 8:38am UTC](https://onlykey.discourse.group/t/how-to-set-up-on-mobile-phone/555 "2025-10-04T08:38:04Z")
I’m not very technical but have set up OnlyKey on my laptop - works well but cannot seem to set it up on my mobile phone. There was a different URL so I set up a new slot for my email on mobile phone using mobile URL. … --- ## [Can't get OK to work with an iPhone 12 mini](https://onlykey.discourse.group/t/cant-get-ok-to-work-with-an-iphone-12-mini/1094)
**Author:** [@DMdm](https://onlykey.discourse.group/u/DMdm)\ **Replies:** 3\ **Last updated:** [October 4, 2025, 8:35am UTC](https://onlykey.discourse.group/t/cant-get-ok-to-work-with-an-iphone-12-mini/1094 "2025-10-04T08:35:50Z")
I’ve an OnlyKey Duo that works fine with my MacBook Air. I’ve not been able to get it to work with the iPhone. I’ve used two different USB-C to Lightning OTG adapters and neither works. The LED’s on the Duo do not lig… --- ## [Onlykey DUO does not work on Oneplus Nord](https://onlykey.discourse.group/t/onlykey-duo-does-not-work-on-oneplus-nord/1407)
**Author:** [@OKMax](https://onlykey.discourse.group/u/OKMax)\ **Replies:** 1\ **Last updated:** [January 7, 2025, 4:54pm UTC](https://onlykey.discourse.group/t/onlykey-duo-does-not-work-on-oneplus-nord/1407 "2025-01-07T16:54:31Z")
Hi all, I have just received my onlykey DUO and one of the main reasons to go for the onlykey DUO was the ability to use it on my phone. Unfortunately when I plug in the onlykey into the USB-C port of my Oneplus Nord the… --- ## [Unlocking Duo without the app](https://onlykey.discourse.group/t/unlocking-duo-without-the-app/682)
**Author:** [@akraut](https://onlykey.discourse.group/u/akraut)\ **Replies:** 8\ **Last updated:** [October 9, 2023, 9:51pm UTC](https://onlykey.discourse.group/t/unlocking-duo-without-the-app/682 "2023-10-09T21:51:47Z")
The app instructed me to choose a PIN using digits 1-6 when setting up the Duo. However, I’m not sure how to enter these when I’m using a device where the app isn’t available. --- ## [Android keyboard](https://onlykey.discourse.group/t/android-keyboard/942)
**Author:** [@Nicolas](https://onlykey.discourse.group/u/Nicolas)\ **Replies:** 5\ **Last updated:** [December 29, 2022, 6:53pm UTC](https://onlykey.discourse.group/t/android-keyboard/942 "2022-12-29T18:53:51Z")
Hi, I 'm using OnlyKey on my chromebook with FRENCH keyboard and work well. But when I want to use it on my android smartphone, FRENCH keyboard doesn’t work, I have to set FRENCH SWISS to work well. As change keyboard l… --- ## [OnlyKey Duo works on tablet but not smartphone](https://onlykey.discourse.group/t/onlykey-duo-works-on-tablet-but-not-smartphone/674)
**Author:** [@Zach](https://onlykey.discourse.group/u/Zach)\ **Replies:** 4\ **Last updated:** [April 16, 2022, 7:15pm UTC](https://onlykey.discourse.group/t/onlykey-duo-works-on-tablet-but-not-smartphone/674 "2022-04-16T19:15:52Z")
I’m a little perplexed, I’ve experimented with the OnlyKey Duo for a few days on my laptop and everything worked perfectly. I plugged it into my Samsung Tab S5e tablet and everything worked well. However, when I plug it … --- ## [Website not working - https://apps.crp.to/](https://onlykey.discourse.group/t/website-not-working-https-apps-crp-to/601)
**Author:** [@jarellano](https://onlykey.discourse.group/u/jarellano)\ **Replies:** 2\ **Last updated:** [July 15, 2022, 1:48pm UTC](https://onlykey.discourse.group/t/website-not-working-https-apps-crp-to/601 "2022-07-15T13:48:58Z")
Seems like the site that provides time to the OnlyKey is down or not working. I’ve tried it from multiple devices. Getting an application error: An error occurred in the application and your page could not be served… --- ## [Duo failing use on Cell Phone](https://onlykey.discourse.group/t/duo-failing-use-on-cell-phone/689)
**Author:** [@Dragon](https://onlykey.discourse.group/u/Dragon)\ **Replies:** 1\ **Last updated:** [April 14, 2022, 1:33pm UTC](https://onlykey.discourse.group/t/duo-failing-use-on-cell-phone/689 "2022-04-14T13:33:42Z")
Using the Duo (v3.0.0-prodn) on a Galaxy 21+ (SM-G996U Android 12). The Duo works fine via USB A to a PC but when tested on cell phone using the USB C shell the led illuminates and can change profile but has no response … --- ## [Apps.crp.to doesn't work with Android Chrome/Firefox running custom ROM CalyxOS](https://onlykey.discourse.group/t/apps-crp-to-doesnt-work-with-android-chrome-firefox-running-custom-rom-calyxos/212)
**Author:** [@Lolf\_4](https://onlykey.discourse.group/u/Lolf_4)\ **Replies:** 8\ **Last updated:** [April 1, 2022, 12:14pm UTC](https://onlykey.discourse.group/t/apps-crp-to-doesnt-work-with-android-chrome-firefox-running-custom-rom-calyxos/212 "2022-04-01T12:14:20Z")
Hello, I would like to use my onlykey on a Pixel phone using CalyxOs as ROM. I have tryed several times to set the time for OTP / 2FA authentifications by using the web app apps.crp.to but it doesn’t work even if the k… --- ## [Calyxos and grapheneos support](https://onlykey.discourse.group/t/calyxos-and-grapheneos-support/609)
**Author:** [@Chaser](https://onlykey.discourse.group/u/Chaser)\ **Replies:** 4\ **Last updated:** [January 25, 2022, 9:11pm UTC](https://onlykey.discourse.group/t/calyxos-and-grapheneos-support/609 "2022-01-25T21:11:59Z")
With the amount of people starting to move to degoogled phones, calyx and graphene, is it possible to get TOTP working for them? --- ## [Wrong password error and HMAC SHA1 mismatch](https://onlykey.discourse.group/t/wrong-password-error-and-hmac-sha1-mismatch/337)
**Author:** [@MasterKey](https://onlykey.discourse.group/u/MasterKey)\ **Replies:** 3\ **Last updated:** [April 7, 2021, 9:00pm UTC](https://onlykey.discourse.group/t/wrong-password-error-and-hmac-sha1-mismatch/337 "2021-04-07T21:00:08Z")
Hi, 1- when I connect the onlykey to my PC or iPhone its and enter the password correctly, but when I connect onlykey to my Android Device its entering wrong password, also if the PC keyboard layout changed its enterin… --- ## [USB Supported on Mobile?](https://onlykey.discourse.group/t/usb-supported-on-mobile/48)
**Author:** [@brightwolf](https://onlykey.discourse.group/u/brightwolf)\ **Replies:** 1\ **Last updated:** [October 13, 2020, 5:06pm UTC](https://onlykey.discourse.group/t/usb-supported-on-mobile/48 "2020-10-13T17:06:38Z")
I have just purchased an OnlyKey and waiting for it to arrive. In the mean time I wanted to purchase an USB to Lightning OTG adapter to be able to use it with my iPhone. I found one on Amazon that is MFI certified and is…