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Dissapointed with A11, how to downgrade ?

Star II
Please tell us some basic information before asking for help:
Model Name: 6z
Firmware Version: 2106.156
Rooted or not:
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
i knew it i shouldnt upgraded !
Cracky sound on the bottom speakers
Netflix wont open up
how to downgrade back to 10 ?


Star II

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thanks bro, ive downgraded,
but the speaker problem still persist….:((

does factory reset effect ?

Zen Master III
That page says: "The downgrade process will erase all data to be a new system."
But you can't go wrong by trying another factory reset.