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[Replied] Downgrade from android 9 to 8

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anhdxt OTHERS Level 2 | All posts
ASUS 5 Bug Report
Model: ZE620KL
RAM: 3G
Firmware/APP Version: Pie
Frequency of Occurrence: 2
Rooted: No
APP Name: -
Screenshot: -
Hi Asus,
Please let me know  how to downgrade from Android Pie back to Oreo,
Thank you

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TWN Moderator | All posts
Hello  anhdxt,

Good day.
If you would like to downgrade the system, I would suggest you backup phone files and bring your phone to a local service center for help.
Sorry for any inconvenience this may cause.
http://www.asus.com/support/Service-Center-All-Countries/
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anhdxt OTHERS Level 2 | All posts
I've done this successfully following the link below:

https://www.asus.com/zentalk/thread-215391-1-1.html

Thanks to  saktis_impreza
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BRA Level 1 | All posts
Hello,

Can I downgrade with my bootloader still locked?

Att;
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anhdxt OTHERS Level 2 | All posts
Yes just follow the instruction 
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BRA Level 1 | All posts

ajuste

anhdxt posted on 2019/2/2 00:09
Yes just follow the instruction

Thanks for the answer.

How can I get this version in RAW.
Thank you again.

Version V15.0619.1810.73
2018/12 / 192.12 GBytes
ASUS ZenFone 5 (ZE620KL) Software Image Version: V15.0619.1810.73 for WW / TW / ACBZ / JP SKU only *
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Last edited by pasqualecannone66 on 2019/2/3 11:31

hi bro, I have a small problem, I have to downgrade to my ze620kl and I have both the raw file and asus flash tool installed correctly but when I go to do the downgrade comes up to "waiting for reboot" and remains so long, to unless I reboot the phone, then it gives me a positive result but the phone does not change anything. can you help me?
Screenshot_20190203-104134.jpg
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anhdxt OTHERS Level 2 | All posts
zenfans_OIJY posted on 2019/2/2 19:50
Thanks for the answer.

How can I get this version in RAW.

I downloaded the raw file in the Sakris 's post
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