Switch to TWRP 3.4.0 sodp twrp 2020-06 security patch level stock twrp 2020-05 security patch level for firmware 52.1.A.2.1 Now both twrp should work without a ROM being installed (empty system/vendor/oem partitions) and still be able to decrypt your userdata.
For apps backup download titanium backup or ultimate backup from Play store. You can backup your ROM from recovery only. Those apps need root. For how to root search around here. Don't ask about that again here. Do that in a new thread if you still have issues. TapaTalked from my Xperia™ Z (C660 ²) running Ultimate PureXZ Ultra!
- The ROM you're flashing MUST be signed, otherwise it won't boot - The recovery must be signed as well, so all the TWRP builds since the 3.3.0-1 one you can find here - Wiping data isn't necessary and will be avoided by TWRP itself, but if you want to switch from locked to unlocked or vice versa without wiping, make sure to delete locksettings
Changed my device. (Note2). I won't be much active on XDA now. Sorry. Still I will update this thread. Just PM me for any requests. I would request all J users to post their questions here instead of creating new threads. Codename For Xperia
Xperia Z Ultra (C6833/SOL24)向けのCM13.0リリース. ブートローダーがロックされたXperia Z Ultra用にCM13.0をビルドしました。. 現時点では主要な機能が使えないのであくまでテストリリースですが、少しずつバグ取りをしようと思います。. これだけ色々とビルドする
2015/04/21編集 2015/09/30追記 2015/11/09追記 root化 Xperia Z Ultra 2015/11/08現在 OS 5.0後期以降 は その3 のみ OS 5.0初期～4.4 は その1c推奨 OS 4.3以前 は その1b推奨 となります root化 Xperia Z Ultra その1b rootkitXperia_20140719 の場合 ワンクリックrootkitが提供されています 対応
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xperia z ultra custom rom
