Phone running KeyAgain
Telegram, WhatsApp and AI on the BlackBerry Curve 9300
Yes. The QWERTY BlackBerry talks again. BlackBerry switched off its legacy services in 2022, but KeyAgain opens its own internet connection, so it doesn’t depend on them. On a real Curve, Telegram and the AI assistant are right there.
At a glance
- KeyAgain
- Running on a real phone
- Brand
- BlackBerry
- Released
- 2010
- System
- BlackBerry OS 6
- Java
- BlackBerry Java (MIDP 2.0)
- Keyboard
- Full QWERTY keyboard
- Mobile network
- 3G and 2G
- Wi-Fi
- Yes
We have seen KeyAgain running on this model.

What works on the BlackBerry Curve 9300
- Telegram chats, through Telegram’s official API
- WhatsApp and WhatsApp Business chats (beta, unofficial linked-device bridge)
- Photos and voice notes, built into the app (the option shows on phones with a camera and microphone)
- An optional AI assistant for quick questions (paid add-on)
How to install KeyAgain on the BlackBerry Curve 9300
- Open your account at my.keyagain.app on a computer or modern phone, and connect Telegram and/or WhatsApp.
- On the BlackBerry Curve 9300, open the browser and go to m.keyagain.app to download the app (about 156 KB). No browser? Download the file on a computer and send it by Bluetooth or cable.
- Open KeyAgain on the phone. It shows a 6-digit code: type it into your account once. Your chats arrive on the phone.
Tip for the BlackBerry Curve 9300: The Curve 9300 has Wi-Fi. On mobile data, check that your operator’s APN is filled in under the TCP/IP settings (the menu path depends on the BlackBerry OS version).
Networks: will it get online where you live?
The BlackBerry Curve 9300 has 3G and falls back to 2G. That helps in France, where 3G outlives 2G until 2028–2029; across most of Europe and North America 3G has already closed and 2G is what’s left. It also has Wi-Fi, so it can keep working at home even where mobile networks are gone. Check your country →
Good to know before you start
The phone needs its own internet connection: mobile data on the SIM, or Wi-Fi on models that have it. WhatsApp arrives through an unofficial linked-device bridge that WhatsApp doesn’t endorse, and your main phone must come online at least every 14 days. Messages pass through our server to reach the phone, so this is not end-to-end encryption; the server keeps at most the latest 30 messages of each chat, encrypted, for up to 7 days. Security on an old phone: what KeyAgain does, and what it can’t →
More about BlackBerry OS phones →
Questions
Does the official WhatsApp app still work on the BlackBerry Curve 9300?
No. WhatsApp ended its apps for Nokia Series 40, Symbian, BlackBerry OS and other classic systems in 2017–2018. KeyAgain is a different route: WhatsApp stays on your smartphone and the BlackBerry Curve 9300 receives your chats as a linked device, through an unofficial bridge (beta).
Do I still need a smartphone?
For WhatsApp, yes: it stays your main device and must come online at least every 14 days. For Telegram, no.
How much does it cost?
Basic costs €4.99, £4.49 or US$4.99 a month, with 3 free days to try it. The AI assistant is an optional add-on. WhatsApp is experimental and free while it lasts.