There are two primary ways to ensure your device is running the latest official software: 1. Wireless Update (FOTA)
If your device is stuck on the TCL logo, reflashing the firmware can restore it to working order. Firmware TCL 30 XL 4G
Complete Guide to Firmware for the TCL 30 XL 4G Go to product viewer dialog for this item. The TCL 30 XL 4G (Model T671G) Go to product viewer dialog for this item. There are two primary ways to ensure your
Flashing official firmware is the only safe way to unbrick a device after a failed software modification. How to Update Your TCL 30 XL 4G Firmware Firmware TCL 30 XL 4G
The easiest method is Firmware-Over-The-Air (FOTA), which requires no computer. TCL 30 XL - Full phone specifications - GSMArena.com