On every UPGRADE (stable to weekly, older weekly to newer weekly, older stable to newer stable) Format is NOT NECESSARY.Weekly.eu 14 => Weekly.eu 14 - Format not mandatory
Weekly.eu 13 => Weekly.eu 14 - Format not mandatory, but recommended
Stable.eu 13/14 => Weekly.eu 14 - Format mandatory
Stable by Xiaomi 12/13/14 => Weekly.eu 14 - Format mandatory
.Dev by Xiaomi (CN) => Weekly.eu 14 - Format mandatory
It's recommended to use the new TWRP v6.7 A13 by SKKK for Poco F3 (alioth)
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