To help debug this issue, tell me more about your situation:
Power off your device. Hold the recovery button while connecting it to the PC via a USB cable.
zip -T Update.zip
In the Linux and Android file systems, each segment of this path serves a functional purpose for external storage: Mnt Media-rw Udisk Update.zip
: Understanding this is the source of many "Permission Denied" errors. Your device has two ways of "seeing" an external drive.
Click File -> Import Image and select your device's stock firmware.
: A common mount point for external USB flash drives (also known as U-disks) on many Chinese-manufactured head units. To help debug this issue, tell me more
The firmware may be incorrect for your specific unit, or the file is corrupted. When to Use This Update Method
adb push update.zip /mnt/media-rw/udisk/
To update an (often using apps like ZLINK5), the system requires a specific file structure on your USB drive for the "update.zip" file to be detected. The path mnt/media_rw/udisk refers to the specific folder hierarchy you must create on the root of your USB pen drive. Required USB File Path Your device has two ways of "seeing" an external drive
If the stereo cannot locate the file in the root directory, create the following nested folders on your USB drive: mnt/media_rw/udisk/
In simpler terms:
Go to the system settings and click > Local Update , or boot into Android Recovery mode to let the system automatically detect /mnt/media_rw/udisk/update.zip . Vital Safety Warnings
on the USB drive: mnt > media_rw > udisk . Place the update.zip file inside the udisk folder.