EML-AL00 region conversion

Can I convert EML-AL00 to EML-l29?


Build number: :EML-AL00 9.0.0.181(C00E82R1P21)
Model: EML-AL00
Android version 9
Android security patch January 1, 2019
internal storage 64gb
RAM 6gb

Is it safe downgrade ower TP to 8?
TNX

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