So! After almost a year I finally found the time to work again on my project. My PSU works but when the previous died, it killed my rpi AND my DAC 
I don’t have my DAC at the moment, but I’ll deport it to get acces to the gpio. So I’m working on my IR Receiver now.
I restarted all the ir config given in this tuto(https://nuxii.fr/?fc=module&module=prestablog&controller=blog&id=42) and i’m blocked at this state:
irrecord -n -d /dev/lirc0 ~/lircd.conf
(Here was the good syntax I have to use. The one given in the tuto doesn’t work:
irrecord -f -d /dev/lirc0 /etc/lirc/lircd.conf
)
When I push remote buttons it doesn’t do anything. And after a few moment I have this message: irrecord: no data for 10 secs, aborting
irrecord: gap not found, can't continue
So it seems that there is actually a problem with my receiver.
To answer to gvolt:
root@mikhifi:/home/volumio# lsmod
Module Size Used by
xt_REDIRECT 16384 1
nf_nat_redirect 16384 1 xt_REDIRECT
xt_tcpudp 16384 1
iptable_nat 16384 1
nf_conntrack_ipv4 16384 2
nf_defrag_ipv4 16384 1 nf_conntrack_ipv4
nf_nat_ipv4 16384 1 iptable_nat
nf_nat 32768 2 nf_nat_redirect,nf_nat_ipv4
nf_conntrack 126976 4 nf_conntrack_ipv4,nf_nat_ipv4,xt_REDIRECT,nf_nat
ip_tables 24576 1 iptable_nat
x_tables 32768 3 ip_tables,xt_tcpudp,xt_REDIRECT
brcmfmac 307200 0
evdev 24576 1
brcmutil 16384 1 brcmfmac
joydev 20480 0
cfg80211 573440 1 brcmfmac
snd_bcm2835 32768 0
hid_multitouch 20480 0
snd_pcm 98304 1 snd_bcm2835
snd_seq 69632 0
snd_seq_device 16384 1 snd_seq
snd_timer 32768 2 snd_seq,snd_pcm
snd 69632 5 snd_seq,snd_timer,snd_seq_device,snd_bcm2835,snd_pcm
rfkill 28672 2 cfg80211
i2c_bcm2835 16384 0
lirc_rpi 16384 0
lirc_dev 16384 1 lirc_rpi
fixed 16384 0
uio_pdrv_genirq 16384 0
uio 20480 1 uio_pdrv_genirq
i2c_dev 16384 0
fuse 110592 1
ipv6 425984 60
squashfs 40960 1
overlay 73728 1
root@mikhifi:/home/volumio# ls -l /dev/lir*
crw-rw---- 1 root video 243, 0 Jul 22 10:26 /dev/lirc0
And:
cat /etc/lirc/hardware.conf
I used parameters given in this thread: https://forum.volumio.org/how-installed-lirc-with-receiver-and-remote-volumio-t360.html
[code]# /etc/lirc/hardware.conf
Arguments which will be used when launching lircd
LIRCD_ARGS=“–uinput”
#Don’t start lircmd even if there seems to be a good config file
#START_LIRCMD=false
#Don’t start irexec, even if a good config file seems to exist.
#START_IREXEC=false
#Try to load appropriate kernel modules
LOAD_MODULES=true
Run “lircd --driver=help” for a list of supported drivers.
DRIVER=“default”
usually /dev/lirc0 is the correct setting for systems using udev
DEVICE=“/dev/lirc0”
MODULES=“lirc_rpi”
Default configuration files for your hardware if any
LIRCD_CONF=“”
LIRCMD_CONF=“”[/code]
I also found this command line:
mode2 -d /dev/lirc0
To test the remote control. This one makes my terminal loose the control of my rpi:
[code]root@mikhifi:~# mode2 -d /dev/lirc0
quit
q
exit
reboot
sudo reboot
[/code]
At this state I can’t do anything. The remote doesn’t do any changes and I have to restart the terminal to get ssh access again.
Any idea? 
…
I found this: 
I don’t have anything to replace it for now so I have to fix this problem first… I’m gonna buy a true PSU and not a phone charger. It will be better.