Cannot downgrade from R17, WP76xx, mangoH green

I’ve tried both Windows one-click executable and linux swiflash as well, but when logging to the module I see that both Linux kernel and Legato versions are the same.
The reason for downgrading will be logged in another thread.

Any suggestions ?

It is not recommended to downgrade from r17

I thought this note is for over the air upgrades, can you confirm that it’s not possible to downgrade from R17 to R16.3, or is it just not recommended ?

I think it is not possible
Your test seems prove this

I’m in the same situation. I can’t downgrade from version 17 to version 16.
The bootloader seems to set the /dev/mtd size differently.
Is it right ?
If it is right, is there a way to download the bootloader?

currently i don’t see any method to downgrade…

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