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Posts: 592 | Thanked: 706 times | Joined on Jul 2019 @ UK
#30
Originally Posted by n950 View Post
I reinstall stock rom and restart all steps.
You don't need to go back to stock. With TWRP you can do a backup of your configured SFOS 3.3, then try to update to 3.4. If it boots after the update, do another backup in TWRP and try to update to 4.0. If it goes wrong at any updates you can restore the latest working version from backup and start again. (This is how I've done the update to 4.0.)
 

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