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HOW TO INCREASE 512MB UPLOAD LIMIT
https://www.onepagezen.com/all-in-one-wp-migration-unlimited-extension-free/
For the instructions outlined in this tutorial to work, you must use version 6.77 or earlier of the All-in-one WP Migration Plugin. You can download version 6.77 here.
There are 7 steps in this tutorial:
1. Activate Plugin
2. Open Plugin Editor
3. Select Plugin
4. Open Constants.php File
5. Edit Constants.php File
Scroll down to line 249 of the constants.php file to the Max File Size section, and add * 20 next to the existing number as shown below:
// =================
// = Max File Size =
// =================
define( 'AI1WM_MAX_FILE_SIZE', 536870912 * 20 );
// OR
define( ‘AI1WM_MAX_FILE_SIZE’, 2 << 28 * 20);
6. Save Changes
7. Test Settings
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