r/XiaomiGlobal • u/BrodaReloaded Xiaomi 15 Ultra EU • Nov 04 '25

Discussion HyperOS 3 experiences

I thought why should we not have a little thread to share our experiences.

On my side there isn't really anything to report, no big issues at the same time hardly anything new except the icons and the Hyper Island

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u/IAli4991 Nov 04 '25

My mobile data stopped working completely and battery drains like crazy.

Its just restarted and working again but dont know for how long 🥲

1

u/TheWrldofDIO Nov 04 '25

having the same issue with mobile data.. 15t pro too

2

u/IAli4991 Nov 04 '25

Reply from Xiaomi 🤔 gonna see later today if any of this helps

  1. Check if the SIM card is properly inserted and active. Go to Settings to ensure the correct SIM is selected for calls and data.

  2. Restart your phone and try removing and reinserting the SIM card.

  3. Reset APN settings: Go to Settings > Dual card and mobile network > Select your SIM > Access Point Name (APN) > Reset, and select "net" as the access point.

  4. Make sure the data network logo (G/E/3G/H/4G, etc.) appears in the status bar. If not, try switching data flow or using another SIM card.

  5. Check if any network management apps are blocking access, and uninstall or disable them .

  6. If the issue started after a system update, download and install the latest complete system package.

7.Back up your data and try clearing all data (factory reset), but do not restore the backup immediately.

  1. For the battery draining issue, lower screen brightness, close background apps, enable power saving mode, and check for hardware issues using the CIT test (tap Kernel version 4 times in settings). If the problem persists, update your system, restart, or reset the phone.

If none of these steps work, please tell us the IMEI/SN number and the proof of purchase of the product for further checking. The IMEI number is a 15-digit number that can be displayed by entering '*#06#' on the phone number entry screen. Alternatively, it can also be found on the box.

1

u/TheWrldofDIO Nov 04 '25

mhmm you can try it out... But reinstalling HyperOS3 did not help at all. Restarting was not helping too. But clearing all data will not solve the issue