It's been a while. Do a normal update (preferably using fastboot method) But personally, I would do a clean update.
Don't forget to create a backup before updating.
https://xiaomi.eu/community/threads/hyperos-2-0-stable-release.74372/post-737084
This forum is not for the official HyperOS. This forum is for the custom ROM (xiaomi.eu) created by a group of enthusiasts.
If you are using the official ROM, please submit your request on the official Xiaomi forum. Furthermore, your device is not supported here.
https://new.c.mi.com/global/
It is a hybrid ROM. It can be installed in TWRP or fastboot.
Installing with Fastboot:
Download Xiaomi.eu ROM zip file
Extract the ROM zip to a new folder
Power off your device
Boot your device in Fastboot mode (Hold volume down + power buttons)
Connect to PC via USB cable
Run one of the...
The procedure you describe will work without any problems if the device has stock recovery.
If you are using a custom ROM and custom recovery (TWRP/OR etc.), you should read up on this.
Because the system relies on stock recovery.
If you did a "factory reset" in TWRP, the files on the device were not deleted. You should have done a "Format Data" in TWRP. Then the phone will reset and format the data partition.
try this one: https://www.mediafire.com/file/5g4lxx3o0eqnrfh/Garnet_modem__OS2.0.10.0.VNRMIXM.zip/file
Next time you should address this in the appropriate thread, not here.
And what ROM do you have on your phone when you say you want to UPDATE without losing data?
You can also install a new ROM without updating, but you will lose your data.
Installing with Fastboot:
Download Xiaomi.eu ROM zip file
Extract the ROM zip to a new folder
Power off your device
Boot your...
I don't understand your thought process. I don't understand why you mention the dead branch DEV. ROM or such an old Stable ROM.
If you have xiaomi.eu ROM on your mobile, update via fastboot. And install the current ROM.
https://xiaomi.eu/community/threads/hyperos-2-0-stable-release.74372/post-737084