@crispyoz
gpio 22 not created

cd /sys/class/gpio/
root@Omega-6834:/sys/class/gpio# ls
export gpiochip0 gpiochip32 gpiochip64 unexport
root@Omega-6834:/sys/class/gpio# ls
export gpiochip0 gpiochip32 gpiochip64 unexport

i enabled high gpio22, but voltages not showing.

@crispyoz
they don't mention how to utilize SDIO pins clearly. They have mentioned clearly below the GPIO pins

@crispyoz
How to use SD_CD pin 23 & SD_WD pin 22 as GPIO pins.

@danilo-burdese hi plz use below method for making a PPP internet purpose.

step1: opkg update
opkg install chat comgt

Step2: vi /etc/config/network

config interface 'hologram'
option defaultroute 1
option device /dev/ttyS1
option apn jionet //jionet place use your network apn
option service umts
option proto 3g
option 'pppd_options' 'noipdefault'

Step3: vi /etc/config/firewall
this you have to copy config forwarding above line.
config zone
option name 'cellular'
option output 'ACCEPT'
option forward 'REJECT'
option masq '1'
option mtu_fix '1'
option network 'hologram'
option input 'ACCEPT'
Step4: /etc/init.d/firewall restart
Step5: /etc/init.d/network restart

that's it thank you.

How to use SD_CD pin 23 & SD_WD pin 22 as gpio pins.

@crispyoz
sir i uploaded onion schematic. I cont able to upload the full image because of it's in PDF format. I think PDF files can't able to upload in here.

@crispyoz sir
I reproduced the OS hanging issue. After I pressed power RESET button, then the board should restart but the board is not restarted then obviously Hardware issue right?.
Note: When the board is in hang mode i have checked onion voltage. It's showing 3.3v. It means the voltage was there.
Note: RESET button it's working fine when the board in a normal state. but this is not working when the board is in Hang mode. Even i checked button HIGH & LOW condition. When i pressed button LOW it's happening.
Note: Board is working fine when I reconnected the power supply.

Crispyoz sir now can you say what could be the issue?. It's a hardware issue or software issue.

I am running onion omega2s bord using 3.5V power supply and without power interrupt purpose i have connected 3.7V battery 2200 mah current. I used in between a Diode. Diode passing voltage as 3.5V. When i run firmware inside onion it has run a few days, after few days suddenly my onion omega has struct but voltage it's there in onion omega. So what could be the problem?.
is there any way to check hardware issue? or software issue?

@crispyoz I am running onion omega2s bord using 3.5V power supply and without power interrupt purpose i have connected 3.7V battery 2200 mah current. I used in between a Diode. Diode passing voltage as 3.5V. When i run firmware inside onion it has run a few days, after few days suddenly my onion omega has struct but voltage it's there in onion omega. So what could be the problem?.
is there any way to check hardware issue? or software issue?

@crispyoz
Sir, I need your answer to what should i do?

finally that 2G place i am going for 4G SIM.
This struct & hanging it's happening some of the times also but rarely.
At least can we solve these issues using watchdog timer?.
Or can i make it watchdog timer as every 1 hour. if everything is fine then i will reset the watchdog timer to next hour like that way can i follow.