Check your charger. The T2 Ultra supports 5V/1.5A only. However, some custom kernels throttle charging for thermal safety. Flash a kernel manager (like Kernel Adiutor) and increase the thermal throttle limit from 40°C to 45°C.
Yes, if:
No, if:
The stock device launched with Android 4.3 (Jelly Bean) and officially stopped at Android 4.4.2 (KitKat). Custom ROMs allow you to jump to modern versions: xperia t2 ultra custom rom
| ROM Name | Android Version | Status | Stability | |----------|----------------|--------|------------| | LineageOS 14.1 | 7.1.2 | Discontinued | Stable | | LineageOS 13.0 | 6.0.1 | Discontinued | Very stable | | Resurrection Remix 5.8.x | 7.1.2 | Discontinued | Stable | | AOSP Extended 4.x | 7.1.2 | Discontinued | Stable | | Slim7 | 7.1.2 | Discontinued | Stable | Check your charger
Note: No official Android 8+ ROM exists due to lack of kernel/driver support. No, if: The stock device launched with Android 4