m@c|-|oR
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- Sep 5, 2020
- 369
- 67
I can't fully agree with you.As I said in a previous post:
"Do NOT format, wipe, or do anything that may adversely affect the installation. There should not really be any problem with the installation. IF, for any reason, the installation does not work 100%, then initially try a Factory reset from withing (sic) TWRP. This should keep all your files intact, but reset the system."
I use a pattern to unlock my phone, but I still have fingerprints and face recognition working.
Therefore, after downloading whichever ROM you are going to use onto your phone; and then following your numbering:
1) Flash 3.4.0 ... YES (but maybe not necessary at this stage)
2) Boot into 3.4.2b ... YES (expect delays) - (never flash this version!)
3) Format, etc. ... NO - NEVER!!!
4) Install ROM ... YES (from within TWRP)
5) Clear caches ... YES *
Done
If the version jump is not too great, you may still be keeping your data. You should be keeping your files. As above, "If, for any reason, the installation does not work 100%, then initially try a Factory reset from within TWRP."
* Reading within the official TWRP FAQs, the installation process should be taking care of this sort of preparation/clearing; also deleting the data/system/package_cache folder may additionally be needed.
If he's coming from stock, with freshly unlocked bootloader - then I would suggest:
1) flash 3.4.2.0623 and boot
2) skip
3) format data would be necessary, cache and dalvik only wiped
4a) copy ROM to the phone
4b) flash ROM
5a) reboot to twrp via fastboot commands
5b) wipe cache/dalvik again
rreboot system.
After this done, the 3.4.0 is a recovery of the phone and your point 2) is valid from this point.