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README.md

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+# android-sms-65-to-64-workaround
+
+So you just updated your CyanogenMod 12.1, probably to "stable" snapshot build, and now your SMS app is crashing with error `android.database.sqlite.SQLiteException: Can't downgrade database from version 65 to 64`, you know that you can just delete `/data/data/com.android.providers.telephony/mmssms.db` file, reboot and be happy, but you can't be happy because you must save your messages? Okay, this is what I faced and here is what you can do.
+
+  - copy your `mmssms.db` file to computer (this will be the source)
+  - delete it on device, reboot and copy the newly created `mmssms.db` (this will be the destination)
+  - put the names of your src and dst files in the script
+  - run it (you need PHP with SQLite3 installed)
+  - replace `mmssms.db` on your device with your dst file
+  - reboot
+  - be happy
+
+This script just copies content of some tables from old to the new db. Feel free to improve it.
+
+Hope this will help somebody.

copy-mmssms-db.php

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+<?php
+
+// place paths to your files here
+$src_path = '';
+$dst_path = '';
+
+$src = new SQLite3($src_path);
+$dst = new SQLite3($dst_path);
+
+function copy_canonical_addresses() {
+    global $src, $dst;
+    $q = $src->query("SELECT * FROM canonical_addresses");
+    while ($row = $q->fetchArray(SQLITE3_ASSOC)) {
+        $dst->query("INSERT INTO canonical_addresses (_id, address) VALUES (".$row['_id'].", '".SQLite3::escapeString($row['address'])."')");
+    }
+}
+
+function copy_sms() {
+    global $src, $dst;
+    $q = $src->query("SELECT * FROM sms");
+    while ($row = $q->fetchArray(SQLITE3_ASSOC)) {
+        $keys = [];
+        $values = [];
+        foreach ($row as $key => $value) {
+            $keys[] = "`".$key."`";
+            $values[] = "'".SQLite3::escapeString($value)."'";
+        }
+        $dst->query("INSERT INTO sms (".implode(', ', $keys).") VALUES (".implode(', ', $values).")");
+    }
+}
+
+function copy_threads() {
+    global $src, $dst;
+    $q = $src->query("SELECT * FROM threads");
+    while ($row = $q->fetchArray(SQLITE3_ASSOC)) {
+        $keys = [];
+        $values = [];
+        foreach ($row as $key => $value) {
+            if ($key == 'unread_message_count') {
+                continue;
+            }
+            $keys[] = "`".$key."`";
+            $values[] = "'".SQLite3::escapeString($value)."'";
+        }
+        $dst->query("INSERT INTO threads (".implode(', ', $keys).") VALUES (".implode(', ', $values).")");
+    }
+}
+
+function copy_words() {
+    global $src, $dst;
+    $tables = ['words', 'words_content', 'words_segments', 'words_segdir'];
+    foreach ($tables as $table) {
+        $q = $src->query("SELECT * FROM {$table}");
+        while ($row = $q->fetchArray(SQLITE3_ASSOC)) {
+            $keys = [];
+            $values = [];
+            foreach ($row as $key => $value) {
+                $keys[] = "`".$key."`";
+                $values[] = "'".SQLite3::escapeString($value)."'";
+            }
+            $dst->query("INSERT INTO {$table} (".implode(', ', $keys).") VALUES (".implode(', ', $values).")");
+        }
+    }
+}
+
+copy_threads();
+copy_words();
+copy_sms();
+copy_canonical_addresses();