Update debugging.md

readme/debugging.md

@@ -18,3 +18,31 @@ It is possible to get the apps to display or log more information that might hel
 
 - In the options, enable Advanced Option
 - Open the log in the top right hand corner menu and post a screenshot of any error/warning.
+
+# Low-level debugging on iOS
+
+Some crashes cannot be investigated using Joplin's own tools. In that case, it can be very helpful to provide a native iOS crash report.
+
+For this, please follow these instructions:
+
+You can send it to this address https://raw.githubusercontent.com/laurent22/joplin/master/Assets/Adresse.png
+
+https://developer.apple.com/library/content/qa/qa1747/_index.html
+
+Getting Crash Logs Directly From a Device Without Xcode
+
+Your users can retrieve crash reports from their device and send them to you via email by following these instructions.
+
+(It is not possible to get device console logs directly from a device)
+
+1) Open Settings app
+
+2) Go to Privacy, then Diagnostics & Usage
+
+3) Select Diagnostics & Usage Data
+
+4) Locate the log for the crashed app. The logs will be named in the format: <AppName>_<DateTime>_<DeviceName>
+
+5) Select the desired log. Then, using the text selection UI select the entire text of the log. Once the text is selected, tap Copy
+
+6) Paste the copied text to Mail and send to an email address as desired