Is Base roms recommended than the oreo stock rom with OTA Updates? Because I was wondering how to go back to Stock Oreo with OTA UpdatesOf course, you must first flash Oreo TWRP from Fastboot (power off, connect to PC by USB, boot by Vol- & Pow)
Base ROM overwrites System and other partitions, Factory Reset (from Recovery) resets Data.
With that you will have debloated, not rooted stock Oreo with neccessary modifications for SIM(s) and NFC (if L09).
You need HuRUpdater only if you want to go back from stock Oreo to Nougat - even for that HURupdater is not needed, it can be easily done by HiSuite (post #3 in Rebranding thread)
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