Downgrade from HOS4 eea to HOS3 (Xiaomi.eu)

[xstxtic]

Hello, I couldn't find any answers here or online.
Is it possible to downgrade from Hyperos 4.0.0.11.XPAEUXM.D01 To the latest Xiaomi.eu version? I wanna flash it on my main (xiaomi 17 ultra.) but I wanted to ask first, before I brick my phone or even worse. Thank you

 

[werty]

Hello, I couldn't find any answers here or online.
Is it possible to downgrade from Hyperos 4.0.0.11.XPAEUXM.D01 To the latest Xiaomi.eu version? I wanna flash it on my main (xiaomi 17 ultra.) but I wanted to ask first, before I brick my phone or even worse. Thank you

Official HyperOS 4 update is around the corner. Better wait for xiaomi.eu update based on HyperOS 4 and then move to xiaomi.eu ROM. Downgrading may brick your device.

 

[xstxtic]

I've seen a guy with Hyperos 3 Android 17 and he asked the same question as me. The developer answered he can downgrade without any problems. So is that true or is it because he's on Hyperos 3?

 

[Igor Eisberg]

You won't brick the device by downgrading it. You must use the "install_and_format_data" script when downgrading.

 

[xstxtic]

You won't brick the device by downgrading it. You must use the "install_and_format_data" script when downgrading.

Thank you, I usually know it won't brick but I was kinda curious and scared because it's my only phone right now. Anyways thank you so much for the answer and especially the fast answer