在此提醒,若是从 Android 10 Open Beta 降级到 Android P 版本会清空手机内所有内容,请务必在升级及降级之前对重要资料进行备份。固件的下载链接可在论坛的帖子上找到。
Since everyone keeps asking this, here is what will happen while installing:
Pie Open Beta to A10 Open Beta: Via OTA, no data loss.
Pie Stable to A10 Open Beta: By installing the beta package mentioned in the thread, no data loss.
A10 Developer Preview to A10 Open Beta: By installing the beta package mentioned in the thread, no data loss.
A10 Open Beta to Stable Pie / Pie Open Beta rollback: Use the rollback package in the Developer Preview 1 thread or the one in this thread after it is updated, will constitute data loss.
A10 Open Beta to A10 Stable: No information as of yet if this can be directly done. History suggests that you need to use the rollback package to go back to Stable Pie and then either wait for the Stable A10 OTA or do a local upgrade to A10. Will constitute data loss.
But as a precaution, it is always adviced to take a backup before any major android upgrade.