While specific features can vary depending on the device it's designed for, firmware like HKTRT2861V09 typically includes:
No radio, overheating chip. Diagnosis: Check the ART partition (offset 0x630000). If bytes 0-5 are not 0x020A0B0C0D0E , stop immediately. Solution: You need to extract the ART from your original bricked device (if you have a backup) or find a v09-specific donor. hktrt2861v09 firmware full