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--- lineageos_update [2025/01/18 06:37] – stephen
+++ lineageos_update [2025/01/20 02:37] (current) – [Downgrade to 20.0] stephen
@@ Line 99: / Line 99: @@
 [[https://droidwin.com/how-to-pass-play-integrity-on-lineageos-rom-any-version/#Via_Module|How to Pass Play Integrity on LineageOS ROM]], use the 'Via Module' method.
+===== Downgrade to 21.0 =====
+==== Prep ====
+  * Screen shot apps.
+  * Screen shot alarms.
+  * Sounds
+    * Phone ringtone: The Great Giana Sisters - Title.
+    * Default notification sound: Argon.
+    * Default alarm sound: CyanAlarm.
+  * Anki sync.
+  * Update stuff in ''Mega:Phone stuff/Internal shared storage'', if necessary.
+  * Copy anything important from internal drive to ''E:\Phone Backup''.
+  * Export contacts to ''Mega:Phone stuff/Backups/Contacts.vcf''.
+  * Back up Locus (not export, Menu > Settings > Backup & filesystem > Backup Manager > Manual backup) to ''Mega:Phone stuff/Backups''.
+  * Back up Productivity Challenge to ''Mega:Phone stuff/Backups''.
+  * Note Smart AudioBook play position.
+  * Temporarily change Google password to something short and type-able.
+==== Procedure ====
+  - Switch on Athena (Silicon desktop).
+  - Connect phone to Athena.
+  - RDP into Athena from Rimu.
+  - [Rimu, Terminal] ''<nowiki>cd 'C:\Android SDK Platform-Tools\'</nowiki>''
+  - [Rimu, Terminal] Check USB connection: ''<nowiki>cd 'C:\Android SDK Platform-Tools\'</nowiki>''