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SONY WALKMAN NWZ – E435F/E436F/E438F & E353/E354/E355 – NWZ-X1050/X1051/X1060/X1061 & NWZ-E463/E463HK/E463K/E464/E464K/E465 sound unlocking

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SONY WALKMAN NWZ – E435F/E436F/E438F & E353/E354/E355 – NWZ-X1050/X1051/X1060/X1061 & NWZ-E463/E463HK/E463K/E464/E464K/E465 sound unlocking

After a few hours of intensive search of  Sony NWZ-E438F walkman service manual, I have finally found it how to unlock sound volume ? with french region settings, sound volume is blocked to 20 (from  20 to 30, raise volume has no effect!) I) enter “test mode”: 1- switch the … Continue reading →