No New Bird in y BH for past 4 Months

There is no new bird in my BH for the last 4 months. I visited my BH few days back after I return from oversea. Found the internal sound not playing due to memory card unable to read by the AMP. Re-insert the menory card and the internal sound resume.

I planned to do some minor changes on my BH this weekend. Will update again the result of the modification.