Issue / Question
How-To: Downgrade the device from Android M to L
Applicable To
ET50 ET55 ET5x ET5
Resolution / Answer
Please use the Downgrade Procedure for Android M to Android L section in the Zebra-ET5x-Android-Flashing-Procedure.pdf for detailed steps to downgrade from Android M to L using either a Micro USB card or using ADB Sideload and MDM methods
Before beginning the Battery Level of the ET5x must be at least 30%
SAMPLE using Micro SD card method after reviewing the " Downgrade Procedure for Android M to Android L "
The contents of the file will contain package names that begin with " package: ” in the following order
- ET50 or ET55 M-to-L-downgrade package ( Used to downgrade to either GMS or Non-GMS )
- ET50 or ET55 Full OS Software Update Recovery package
- ET50 or ET55 LifeGuard Update package ( Add this line only if applying a Lifeguard Update )
- ET50 or ET55 Enterprise reset package Wipes all partitions/data except Enterprise folder/partition & On Device Storage (/sdcard)
Example using the ET50 Android M to L downgrade package v5: ET500M30XRDEF21330.zip
File name : ET5X-downgrade-to-l.upl
Contents : package:ET500M30XRDEF21330.zip
package:CFE-ET50-L-XX-010821-N-00-11.zip
package:ET500L30CREEF10821.zip
