I have found (with ChatGPT assisting
) another way to achieve the same result. Might be interesting to someone…
This was tested on my Jolla Phone (2026), Android AppSupport 15, with a Murena Fairphone 5 as the primary phone. (Yes, a degoogled phone!
)
Open the Jolla terminal and execute:
devel-su appsupport-attach /system/bin/sh
3. Temporarily switch to tablet-sized display mode
wm density 260
On the Jolla Phone (2026), this increases the effective smallest display width beyond Android’s typical 600 dp tablet-layout threshold.
4. Completely stop Viber
am force-stop com.viber.voip
5. Launch Viber again
Open Viber from the Sailfish launcher, enter your existing phone number, and follow the activation prompts.
Viber should now display a QR code for secondary-device pairing.
6. Pair with your primary phone
On your existing primary phone:
-
Open Viber.
-
Go to More and open the QR-code scanner.
-
Scan the QR code displayed on the Jolla.
-
Approve the pairing.
Verify that you can send and receive messages.
7. Restore the original display density
Return to the Android shell and execute:
wm density reset
am force-stop com.viber.voip
Restart Viber from the Sailfish launcher.
On my jolla, Viber remained paired as a secondary device and continued working normally at the original 380 dpi density.