Insert a paperclip into the hole, press down firmly for 10 seconds, and release to force a hardware reboot.
If you're still unsure about updating your device or can't find specific instructions for your device, I recommend:
Format a USB drive to FAT32 and copy the firmware file (often a .zip or .bin file) to the root directory.
If you need help finding the specific firmware or troubleshooting a stuck installation, let me know: What is your device installed in? What is the current Android version and build number ? Are you experiencing a specific error message ?
Enhancements to user interface components, connectivity fixes (Wi-Fi/Bluetooth), and app compatibility. How to Check for the ZQ8003 Android Update
Download the correct ZQ8003 update package from your verified seller or an authorized automotive forum (such as XDA Developers). Extract the downloaded ZIP archive.
Sometimes a simple reboot solves update-related problems.
Obtain the official ZQ8003 update package from your device manufacturer's website or authorized seller forums.
Place the firmware .zip or update files provided by your manufacturer in the root directory.
Do not download generic Android firmware. You must find firmware specifically compiled for the ZQ8003 chipset. The best sources include: