The newly launched Google Samsung Galaxy S26 Ultra is the top flagship model by Google under the Pixel family at the time of writing this article. It includes a fully redesigned overview, a new camera setup, Android 13 out of the box, and a more powerful in-house Tensor chipset. However, it seems that there are a bunch of bugs or issues troubling Samsung Galaxy S26 Ultra users since its launch. Meanwhile, users are reporting about the Samsung Galaxy S26 Ultra No Service or No Network issue. There are endless numbers of bugs or issues appearing to the Samsung Galaxy S26 Ultra users from slower fingerprint unlock or fingerprint unlock not responding, selfie camera blur issue, random screen wakeup issue, Google Asisstant quick phrase not available, Magic Eraser not working, and more. Additionally, the missing face unlock feature, app crashing or freezing, screen flickering & green tint issue, etc are also bothering users a lot.
Currently, the affected users are storming the Samsung Galaxy S26 Ultra Phone Help forum about the same issue and it seems that it’s a widespread problem for sure. According to multiple reports, the device service drops the network connectivity or signal quite frequently no matter which carrier service they’re using. It basically shows “NO SERVICE” or “NO SIM” status at the status bar (in the top left corner) every time of the lock screen and in the top right corner generally.
Whereas the signal strength area basically shows an exclamation mark (!) that indicates the device system can’t actually detect or find out the SIM card network whatsoever. Only after rebooting the device, the network connectivity restores temporarily which is a major issue for the Samsung Galaxy S26 Ultra users. Although the system says “NO SIM”, it can still detect the inserted SIM in the Settings app > Network and Internet > SIMs section which is quite weird.
Meanwhile, some affected Samsung Galaxy S26 Ultra users have tried the following steps to troubleshoot the issue manually but these didn’t help at all. Even after inserting a new physical SIM card or an eSIM, the issue persists. Whereas performing the factory reset method on the device didn’t help either. We’re expecting that Google should gonna resolve the problem in their next update soon. Till then you can try following the methods below to check if that helps or not.
Method 1. Reboot the Device
We can understand that rebooting the device may not work for everyone and every time but it’s worth trying at least once if you’re facing any kind of connectivity issues or frequent drops whatsoever. It doesn’t require any extra effort or time so you can try it out. Just long-press the Power button on the Samsung Galaxy S26 Ultra and the Power menu will appear. Simply tap on Restart to automatically reboot the system on the device.
Method 2. Disable Adaptive Connectivity
By turning off the Adaptive Connectivity feature on your Google Samsung Galaxy S26 Ultra device, you’ll be able to fix the conflict with the mobile network. This feature can automatically detect and decide which mobile network is having the best service or signal from 4G & 5G every time. So, it can automatically switch between a stable and stronger mobile network for improved user experience. Whereas it can also switch to 4G to preserve battery when required.
Make sure to go to the Settings menu on your Samsung Galaxy S26 Ultra.
- Now, tap on Network and Internet > Scroll to Adaptive Connectivity.
- Make sure to turn off the toggle next to it.
- Once done, reboot the device, and check whether the SIM connectivity issue has been fixed or not.
Method 3. Reset Network on the Device
If none of the methods worked for you, try performing the network reset on your Samsung Galaxy S26 Ultra model to check if the problem is still bothering you or not. To do so:
- Go to the Settings menu on your Samsung Galaxy S26 Ultra.
- Go to System > Scroll down to Reset Options and tap on it to open.
- Now, tap on Reset Wi-Fi, mobile & Bluetooth > Tap on Reset settings at the bottom.
- Wait for the reset process to complete. Once done, reboot the device to apply changes immediately.
- You should remove and insert the physical SIM card again to get it detected easily. In some scenarios, this method may fix the SIM card-related issues.
The Samsung Galaxy S26 is a series of flagship Android-based smartphones manufactured, developed, and marketed by Samsung Electronics as part of its flagship Galaxy S series. They collectively serve as the successor to the Galaxy S25 series released in 2025. The S26, S26+, and S26 Ultra were announced on February 25, 2026, at Samsung’s Galaxy Unpacked event in San Francisco, alongside the Galaxy Buds 4 series, and were released on March 11, 2026, while the Galaxy S26 FE was announced on August 27, 2026, and was subsequently released on September 4, 2026.
The Galaxy S26 series were an evolution of the prior year’s series, with upgraded hardware and design refinements. Succeeding the S25, S25+, S25 Ultra and S25 Edge respectively, the S26 was produced in a standard model with a display size of 6.3-inch (160 mm), the S26+ has a larger 6.7 in (170 mm) display and the S26 Ultra has a larger 6.9 in (170 mm) display. The latter still has the S Pen and its dedicated slot, but introduces a new hardware-level technology called the Privacy Display, the first smartphone in the world to have a feature that decreases screen visibility from certain angles for enhanced privacy.
AND NOW I THINK ALL ISSUES AS WELL AS PROBLEMS REGARDING Samsung Galaxy S26 Ultra HAS BEEN SOLVED . IF IN CASE YOU HAVE ANOTHER NETWORK ISSUE THAT I HAVEN’T DISCUSSED YET, THEN COMMENT US BELOW.
Version note: Android 11, Android 12, and Android 13 are older Android releases. Their presence in this guide is historical or relevant to a specific device/build; it does not indicate that Samsung Galaxy S26 Ultra currently runs, qualifies for, or should be downgraded to that version. Check the exact model’s official software history before following version-specific steps.
