Downgrade to android 9 from 10 with error

alex4ndrepessoaalex4ndrepessoa Level 1
edited April 16 in ZenFone 5 Series

Please tell us some basic information before asking for help:

  1. Model Name: Zenfone 5 ZE620KL
  2. Firmware Version: 17.0615.2003.20
  3. Rooted or not: No
  4. Frequency of Occurrence: Every time when i try this
  5. 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.

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Hello. I downloaded the file update today to android 10 beta version but i don't like, when i try to downgrade my device i see an message warning:

System update failed (3)

Unknow error

Restored system for previous settings

ps: its something like this, sorry if my english is bad

Anyone can help me please? Thank you

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