Samsung S25 Ultra Not Connecting to 5G Despite One UI 8.5 May Update

[Sharjeelhasan]

Despite updating my Samsung Galaxy S25 Ultra to the One UI 8.5 stable update today, I’m still unable to use 5G on my device.

Both Zong and Jazz have clearly mentioned on their official websites that after the May update, the S25 Ultra and some other Samsung models would be added to their supported 5G device list.

To confirm, I also visited a verified 5G coverage area for both Zong and Jazz in Faisalabad, but my phone still did not connect to 5G at all.

[YasirAliSamtia]

https://play.google.com/store/apps/details?id=com.google.android.ims


Install this app and try again.

Hope will work.


If solved, then mark my comment as solution solved😊

[Sharjeelhasan]

Thanks I hope this will work

[YungYeeYee]

I was only getting 5G after the update, not 5Guc. Soon as I downloaded your recommendation 5Guc activated. That's weird. Thx tho. 

[YasirAliSamtia]

Welcome 😊

[Simply_Wiki]

Check Jazz 5G supported device list on their website

[Naqij]

My 5G is working after the update.

[Sharjeelhasan]

Cool,
What is your model?
Did you test in Faisalabad?

[Sharjeelhasan]

And lastly what is your security patch ? Is it april or may

[Naqij]

April 5, 2026 is the security patch.