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Wiki > Main > SonyNW > SonyNWZE440

Sony NWZ-E440


This is the page for the Sony NWZ-E440 series (NWZ-E443, NWZ-E444, NWZ-E445)

Port status

There is some code to make the lcd/button/audio works work but we have no support for the raw nand flash. Since this is a huge piece of work and there is no sdcard slot, there is no plan to port rockbox to this player.


The Sony NWZ-E440 features 11 hardware buttons: power/option, play/pause, left, right, up, down, home/back, volume up, volume down, hold, reset. The following chips can be found on the PCB:

Recovery Mode

One can reach the recovery mode by powering off the unit and plug the USB cable while holding the power button. There are two other alternative methods:
  • power on the player (without USB cable plugged), hold power and plug the USB cable while holding power for at least one or two seconds
  • plug the USB cable, hold power and press the reset button while holding power for at least one or two seconds

PCB Scans

The PCB is quite hard to access, I didn't risk damaging my player.


Here is a list of all the pins used by the OF. Pins are of form BxPyy where x is the bank and yy the number within the bank. Direction only applies to GPIO.
Pin Dir Comment
B0P0{0-7} ssp2_d{0-7}  
B0P09 IN Hold (active low, needs pullup)
B0P10 OUT Backlight gate
B0P14 OUT/uartapp2_rx WM-Port RxD
B0P15 IN/uartapp2_tx WM-Port TxD
B0P20 ssp2_cmd  
B0P24 ssp2_sck  
B0P{30,31} i2c_{scl,sda} tuner i2c
B1P{00-7} lcd_d{0-7}  
B1P18 lcd_reset
B1P19 lcd_rs  
B1P20 lcd_wr  
B1P28 pwm2 Backlight
B1P29 OUT Internal storage power gate
B2P03 IN Used to determine device variant
B2P04 IN Used to determine device variant

Device variant are as follows (see section below for comment):
B2P04 B2P03 Device
0 0 NWZ-E340
0 1 NWZ-E440 or NWZ-E440K
1 0 NWZ-BB
1 1 NWZ-S540


Apparently the same firmware is used for several players. The model is determined from two pins and/or the MMC. The following players are handled: E340, E360, E440, E440K, S540, BB.

-- AmauryPouly - 09 Oct 2013

r5 - 02 Apr 2021 - 20:46:07 - UnknownUser

Parents: SonyNW
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