Iain_B
Members
- 25 Mar 2013
- 1,898
- 297
Going from one weekly to another weekly you should not need to format data (NOT wipe data anyway).Hello, is it possible to dirty flash over the 20.9.17 weekly (the last weekly with A10) without wiping all data? I'm on Mi 9T non pro
However, because of the fairly large time gap, and because these are BETA ROMs, success cannot be guaranteed.
If data is important, you should backup before attempting. You should work through a few ROMs, especially where there are any changes in version, eg. Android or Miui.
If data is not important, you could back up individual apps, install the new ROM, and do a Factory reset.