i changed some settings using AT commands, then i decided to reset the firmware, which i did. And then it got reboot issue. It reboots every 5 seconds. I went into uboot mode i installed latest firmware, oldest firmware. It does not work and reboots every 5 secs. I also tried to reset the AT shit. But does not work help 
I did exactly enter those commands in order.
AT+QNWCFG="cdrx",0
AT+QETH="rgmii","DISABLE",1
AT+QENDC=0
AT+QNWCFG="csi_ctrl",0,0
AT+QCFG="pcie/mode",0
AT+QCFG="rrc",3
AT+QCFG="sarcfg","LTE",230,10
AT+QCFG="sarcfg","WCDMA",230,10
AT+QSLIC=0,2
AT+QURCCFG="urcport","usbmodem"
Then i resetted the firmware and when i tried to enter a new password. I noticed it it reboots every 5 seconds.
Led goes on, blinks, reboots each 5s
Please help
Try this method
It did not work, i have always like 5 seconds before it restarts. It is so weird.
Can you maybe give me the command for ssh?
echo -e 'AT+QCFG="data_interface",1,0\r\nAT+QCFG="pcie/mode",0\r\n' > /dev/ttyUSB0
I did this, it does work. 
You first brush the firmware of 4.3.0 through uboot
2 Likes
Thank you so much!! 
Okay but now how do i upgrade to latest version, i tried flashing to latest firmware manually, but the reboot bs appears again. It works only using 4.3.0
No such file or directory error
AT+QCFG="data_interface"
AT+QCFG="pcie/mode"
Take a look at these two commands
Data interfacr is 1, 0
And pcie is 0
AT+QNWCFG="cdrx",0
AT+QETH="rgmii","DISABLE",1
AT+QENDC=0
AT+QNWCFG="csi_ctrl",0,0
AT+QCFG="pcie/mode",0
AT+QCFG="rrc",3
AT+QCFG="sarcfg","LTE",230,10
AT+QCFG="sarcfg","WCDMA",230,10
AT+QSLIC=0,2
AT+QURCCFG="urcport","usbmodem"
These are the AT instructions you set before you rebooted?
Before i resetted the firmware, yes.
Is the module still recognized?
Okay i am now on latest version, but there is no internet connection somehow
It is stuck on connecting
Is the apn set correctly?
Yes, 100% but i am not sure about the protocol ajd port fields.