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 walkman on
2 –  press button  “BACK” for one or two seconds, in order to display home menu
3 – put the walkman in “HOLD” position
4 – while button “OPTION” is pressed :
press, in that order :

4 – a) for E435F/E436F/E438F:


4 – b) for E353/E354/E355:

5 -entering test mode !

II) change country parameters

– a new menu “MPTAPP” is displaying

– press 3 times on down arrow in order to select “OTHER

– press once on right arrow in order to select “CLOCK” on right column)

– press 4 times on down arrow in order to select “DEST“, then press button ” PLAY/PAUSE

now you can see  “DEST” and below : “FR” (or your country name), press 5 times “OPTION” button so as to change country and select “US” (United States) instead of the old country

press then button “PLAY/PAUSE” and you will be able to see “DEST OK“, instead of “START

country settings are now saved. press “BACK” button to get back to test menu.

press now once on left arrow to go from “DEST” to “OTHER
Then press 5 times on down arrow to select “EXIT

press once “PLAY/PAUSE”, to select “SURE?” and then press “PLAY/PAUSE” again

walkman should switch automatically off and on


now from volume 20 to 30, the sound is raising

for NWZ-X1050/X1051/X1060/X1061 : I cannot test the procedure because I don’t have these walkmans but you can try to enter in/exit test mode with


NWZ-E463/E463HK/E463K/E464/E464K/E465 : I don’t have this sony product neither, but you can enter “test mode this way : please read this New post


you can find the service manuals I’ve got , here :

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About Xavier

7 years+ .net consulting

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

  1. Vatinel says:

    Je viens d’acheter le Sony NWE393B et le son est très faible snif…
    Quelqu’un saurait me dire si je peux effectuer cette manip ou bien si il n’y a rien faire… A 80€ ca fait cher la berceuse !
    Merci d’avance!

  2. A says:

    je n’y croyais plus!!!
    je cherchais la solution depuis des années pour le sony
    j’allais en acheter un autre!!
    et là miracle! grâce à toi!!

  3. Sony nwze585 says:

    Bonjour, comment faire pour débrider un walkman sony NWZ E585 (16GO)
    je ne trouve pas la manip merci de m’aider c’est sumpa de votre part.

  4. alphalima says:

    Merci mon ami!!! J’allais le jeter tellement que j’en avais assez de mon son de tapette.
    Désormais c’est le TOP. Merci encore…

  5. Driks says:

    Excellent tuto !

    Un grand Merci car j’avais mis de côté ce lecteur MP3 (NWZ-E438F) dans un un fond de mes tiroirs (ça fait cher le tiroir !)

    Bonne continuation.

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