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--- manual:faq:pro_to_lm4 [2022/04/12 18:56] – mstupka
+++ manual:faq:pro_to_lm4 [2025/04/14 13:53] (current) – [Android 13+] mstupka
@@ Line 2: / Line 2: @@
 ----
-===== Android 11+ =====
+===== Android 13+ =====
-Due to the [[manual:faq:android_11_filesystem|recent changes in the Android file system]], apps can no longer share one data directory. It is possible to **[[manual:faq:new_install_second_app|transfer the data from one Locus to the other]]** though. [[manual:faq:new_install_second_app|See how to do it >>]]
+Unfortunately, the quick data transfer from Locus Map 3 Classic to Locus Map 4 as in Android 11-12 is no longer possible due to the new Android restrictions - Locus Map 4 can't access Locus Map 3 Classic's main directory in /Android/data/ sector. The process is therefore a bit more complicated:
+  * open Locus Map 3 Classic > menu > more functions > Backup Manager > **[[https://docs.locusmap.eu/doku.php?id=manual:user_guide:tools:backup#manual_backup|make a full manual backup]]** to the phone system "download" directory
+  * go to settings > Miscellaneous > Default directories > **Unload app data** - select some **accessible sector**, e.g. /Android/Download/, create "locus_data" folder in it and execute the unload
+  * open Locus Map 4 > go to settings > Backup&File system > Data transfer > **Load app data** - select /Android/Download/locus_data > **confirm** (app needs restart)
+  * go to settings > Backup&File system > Backup manager > **Restore** backup - select the backup file in the "download" directory
+  * **restart** Locus Map 4
+<WRAP center round important>
+**We strongly recommend setting all custom subdirectories to the default within the main app directory before the data transfer.**
+</WRAP>
+===== Android 11 - 12 =====
+Due to the [[manual:faq:android_11_filesystem|changes in the Android file system ]] in November 2021, Locus Map 3 Classic and Locus Map 4 can no longer share one data directory. It is possible to **transfer the data from one app to the other** though:
+  * **install** Locus Map 4
+  * open Locus Map 4 **settings > Backup & filesystem > App data transfer > Load Locus Map Classic data**
+  * **restart** Locus Map 4
+<WRAP center round info>
+**Note:**
+In some rare cases, the procedure above may fail for unknown reasons. If something like that happens, we recommend transferring the app data manually with the help of a PC:
+  * **connect** your phone to a PC via **USB** and **allow file transfer** on the phone
+  * **copy all files** from //Android/data/menion.android.locus.pro/files/Locus// to //Android/data/menion.android.locus/files/Locus// (overwrite all its contents) in the phone's internal storage
+  * disconnect the phone and **restart Locus Map 4**
+</WRAP>
 ===== Android 5 - 10 =====

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