Software Update interrupted

[Badhan435]

I buy second hand handset Samsung Galaxy s21Ultra 5g Docomo Variant. Right now its 2024 but my phone runs on Android 12 and also knox Security system was too low . When i am going to update my mobile its shows my softower update was Interrupted. 

Give me some sullition and how to update my mobile . I can't feel new Android update and also one UI 6.0

Please is anyone here please solve this problem and text that 🙏 

[sukhjinder_07]

Share screenshots

[Mouleeswaran]

May be it was other country variant

[Badhan435]

Yap another varrent

[Gouthamram]

You cant update without docomo network.
Your model please

[Badhan435]

SM-G998U

[Gouthamram]

Flash sm-G998U1 xaa firmware

[Badhan435]

Can i flash this mobile or Go to the shop to flash

[Gouthamram]

Mostly local shops technician experienced in only harware not software.

[Badhan435]

Then I use one ui 6.0 and is there any security problem ?