Unable to Downgrade after upgrade to Android M from Android L


Question

I upgraded my MOTO G 3rd Gen (XT1550) to Android M. After that I tried to root My Phone but unable to Root Android M. So I decided to Downgrade to Android L. But also unable to Downgrade.


Answer

I got a solution for Downgrading MOTO G 3rd Gen (XT1550) Android M to Android L






1) Extract the folder *.zip



2) Enter in the Extracted folder.



3) If "fastboot" not installed



Then you can download it from here Download Fastboot



4) Test fastboot by typing: fastboot devices
You should see:



<serial number> fastboot


5) You are now ready to flash the fastboot files



Fastboot Commands:



"Do commands manually, one at a time - checking that each one returns an [OKAY]."


NOTE: system.img_sparsechunks may differ in number + name - Always check contents of folder you're working with.



fastboot oem fb_mode_set


If you want to Downgrade from Android M to Android L the Don't flash gpt.bin




fastboot flash partition gpt.bin <---- Don't Do this Step




fastboot flash bootloader bootloader.img

fastboot flash logo logo.bin

fastboot flash boot boot.img

fastboot flash recovery recovery.img

fastboot flash system system.img_sparsechunk.0

fastboot flash system system.img_sparsechunk.1

fastboot flash system system.img_sparsechunk.2

fastboot flash system system.img_sparsechunk.3

fastboot flash system system.img_sparsechunk.4

fastboot flash modem NON-HLOS.bin

fastboot erase modemst1

fastboot erase modemst2

fastboot flash fsg fsg.mbn

fastboot erase cache

fastboot erase userdata

fastboot erase customize

fastboot erase clogo

fastboot oem fb_mode_clear

fastboot reboot





For Rooting MOTO G 3rd Gen (XT1550) Android M






1) Flash(Permanent) or Boot(Temporary) with TWRP



You can download TWRP from Here Download TWRP




  • Flashing TWRP



      fastboot flash recovery {
    TWRP File's Name with extension
    }
     

  • Booting TWRP



      fastboot boot {
    TWRP File's Name with extension
    }
    



2) Restart the phone in recovery mode (If flashed) <---- Those who use booted using TWRP Skip this step



3) Using TWRP flash the SuperSU



You can download SuperSU from Here Download SuperSU


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