How to downgrade device zc550kl,without help of laptop or PC ,?

kishore.ghubadekishore.ghubade Level 2
edited September 2020 in Others

Please tell us some basic information before asking for help:

  1. Model Name:ZC550KL,Z010D
  2. Firmware Version:13.8.26.80
  3. Rooted or not: not
  4. Frequency of Occurrence:-
  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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