Old Kernel Version Error

[myasir926]

The installation fails because the current kernel version has a higher version than the requested kernel version.

Error is: "Driver for 6.1.21-v7l+ kernel not found"

Kernel version control can be disabled for workaround.

Note: Kernel should be downloaded to the latest.

(sudo apt update && sudo apt upgrade , sudo apt-get install raspberrypi-kernel-headers)

In addition, the "DIR=/home/pi/files" directory on line 15 of the "tutorials/QMI_tutorial/qmi_install.sh" file gives an error because it changes from user to user.

[myasir926]

#!/bin/sh

: '
QMI installation script by Sixfab
This script is strictly for Raspberry Pi OS.

Created By Metin Koc, Nov 2018
Modified by Saeed Johar, 11th June 2019
'

YELLOW='\033[1;33m'
RED='\033[0;31m'
SET='\033[0m'

DIR=/home/{CHANGE_FOR_YOUR_USERNAME}/files
UDHCPC_DIR=/usr/share/udhcpc

echo "${YELLOW}Clean Old Files${SET}"
if [ -d $DIR ]; then
rm -rf $DIR
rm -rf $DIR.zip ; fi # for old directory

echo "${YELLOW}Change directory to /home/pi${SET}"
cd /home/pi

echo "${YELLOW}Downloading source files${SET}"
wget https://github.com/sixfab/Sixfab_RPi_3G-4G-LTE_Base_Shield/raw/master/tutorials/QMI_tutorial/src/quectel-CM.zip -O quectel-CM.zip
unzip quectel-CM.zip -d $DIR && rm -r quectel-CM.zip

echo "${YELLOW}Checking Kernel${SET}"

echo "${YELLOW}Installing udhcpc${SET}"
apt install udhcpc

echo "denyinterfaces wwan0" >> /etc/dhcpcd.conf
sudo systemctl daemon-reload
sudo systemctl restart dhcpcd

echo "${YELLOW}Copying udhcpc default script${SET}"
mkdir -p $UDHCPC_DIR
cp $DIR/quectel-CM/default.script $UDHCPC_DIR/
chmod +x $UDHCPC_DIR/default.script

if [ -d $DIR/drivers ]; then
echo "${YELLOW}Change directory to $DIR/drivers${SET}";
cd $DIR/drivers;
make && make install;
fi

echo "${YELLOW}Change directory to $DIR/quectel-CM${SET}"
cd $DIR/quectel-CM
make

chmod 777 $DIR/quectel-CM
echo "${YELLOW}After reboot please follow commands mentioned below${SET}"
echo "${YELLOW}go to $DIR/quectel-CM and run sudo ./quectel-CM -s [YOUR APN]${SET}"

read -p "Press ENTER key to reboot" ENTER
reboot