add more details about storage capacity

docs/source/faq.rst

@@ -20,7 +20,7 @@ Strange problems with code which was just working
 
 When you run in laptop mode from OpenMV, sometimes the code gives you errors the first 2 times you try to run. We're not sure why this happens, but these errors always go away after the third attempt.
 
-If when running in solo mode, the Arduino behaves strangely when running code which you know works, it could be because you are out of storage. Try to shrink your code by removing comments and making functions more efficient. Every character counts, because it's the storage of your .py files which is running out. Try removing excess newlines or whitespace.
+If when running in solo mode, the Arduino behaves strangely when running code which you know works, it could be because you are out of storage. This will not happen until your code files are at least 30 KB in total!!! If your code files are not 30 KB or larger in total, what you're experiencing is an ordinary bug. If you suspect that you make be out of storage, try to shrink your code by removing comments and making functions more efficient. Every character counts, because it's the storage of your .py files which is running out. Try removing excess newlines or whitespace.
 
 Issues
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