Put the battery back in and press the Power button normally. Solution 2: Exiting via Key Combinations

If the Volume or Power keys are physically stuck or damaged, the phone may automatically boot into Fastboot.

For more severe cases, "flashing" the original stock ROM is required. This involves connecting the device to a computer and using specialized tools (like the SPD Upgrade Tool, given the device's chipset) to reinstall the operating system. This is a delicate process, as using the wrong firmware file can permanently disable the phone. Conclusion

The rain hadn’t stopped for three days in the tech district of Kowloon. Inside a cramped repair shop called "The Neon Cortex," twenty-two-year-old Mei Lin stared at a dead slab of glass and metal: a Jazz Digit 4G, model JZ-D4G-X.

A: You forgot the drivers. Install "MTK USB Driver" version 1.0.8 or higher. Also, try a USB 2.0 port (not USB 3.0 blue ports).

The phone should vibrate and boot normally into Android.