Build BUC1 has blocked the downgrade to Android 10

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LSS4181

Senior Member
Mar 13, 2012
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Google Pixel C
Razer Phone 2
I upgraded my tablet to BUC1 a few days ago via Odin. Recently I was thinking about downgrading to ATK3 to see if GSIs behave better with Android Q vendors, only to find out that it's not possible anymore.

Starting from BUC1 build, the SW REV value has been incremented to 2 from 1 which effectively blocked the possibility of downgrading to anything earlier. The previous build BUBB is the last one to have a SW REV value of 1.

As a result, if you're on BUA8 or BUBB and are still considering about going back to Android 10, do not upgrade any further. Once you upgrade past BUC1, there's no way back.
 
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    I upgraded my tablet to BUC1 a few days ago via Odin. Recently I was thinking about downgrading to ATK3 to see if GSIs behave better with Android Q vendors, only to find out that it's not possible anymore.

    Starting from BUC1 build, the SW REV value has been incremented to 2 from 1 which effectively blocked the possibility of downgrading to anything earlier. The previous build BUBB is the last one to have a SW REV value of 1.

    As a result, if you're on BUA8 or BUBB and are still considering about going back to Android 10, do not upgrade any further. Once you upgrade past BUC1, there's no way back.