**SPECIFICATIONS:**
SOC: Qualcomm IPQ6018 (64-bit quad-core ARM Cortex-A53 @ 1.8Ghz)
Flash: SPI NOR 8MB + NAND 128MB
Memory: 1GB
2.4GHz Frequency Band: 2.4GHz ~ 2.484GHz (802.11 b/g/n/ax)
5GHz Frequency Band: 5.150GHz～5.850GHz (802.11 a/n/ac/ax)
Wireless Speed: 2.4GHz: 574Mbps, 5GHz: 1201Mbps
**BACKUP YOUR STOCK FIRMWARE:**
- Put openwrt-*-initramfs-kernel.bin to your TFTP server and rename it to initramfs.bin
- Enable serial console and enter to u-boot cli and exec these commands:
```
tftpboot <your_tftp_server_ip>:initramfs.bin
bootm
```
- Once boot completed and you get the openwrt shell execute below commands:
```
device=<device_name>
mkdir -p /tmp/fw_backup; cd /tmp/fw_backup
rootfs=$(cat /proc/mtd | grep \"rootfs\" | cut -d: -f1)
rootfs_1=$(cat /proc/mtd | grep \"rootfs_1\" | cut -d: -f1)
dd if=/dev/${rootfs} of=rootfs_${rootfs} bs=1M
dd if=/dev/${rootfs_1} of=rootfs_1_${rootfs_1} bs=1M
cp /sys/firmware/fdt fdt.dtb
md5sum * > md5sum
tar -cvzf /tmp/${device}.tar.gz .
sum=$(md5sum /tmp/${device}.tar.gz | cut -d' ' -f1)
mv /tmp/${device}.tar.gz /tmp/${device}_${sum}.tar.gz
echo "stock fw backup saved to: /tmp/${device}_${sum}.tar.gz"
```
- Upload/save your backup to a safe place.
**STOCK FIRMWARE RECOVERY:**
- Boot initramfs image
- Upload your backed-up stock fw tarball to the device
using scp or download it from the device using wget.
- Enter device ssh cli or tty and exec:
```
cd /tmp && wget <your_web_server_ip>/${stock_fw_backup}.tar.gz`
tar -xpzf ${stock_fw_backup}.tar.gz
rootfs=$(cat /proc/mtd | grep \"rootfs\" | cut -d: -f1)
rootfs_1=$(cat /proc/mtd | grep \"rootfs_1\" | cut -d: -f1)
ubiformat /dev/${rootfs} -y -f /tmp/rootfs_${rootfs}
ubiformat /dev/${rootfs_1} -y -f /tmp/rootfs_1_${rootfs_1}
reboot
```
**INSTALLATION:**
1. initramfs method
- Put openwrt-*-initramfs-kernel.bin to your TFTP server and rename it to initramfs.bin
- Enable serial console and enter to u-boot cli and exec these commands:
```
tftpboot <your_tftp_server_ip>:initramfs.bin
bootm
```
- Once boot completed and you get the openwrt shell execute below commands:
```
cd /tmp && wget <your_web_server_ip>/factory.ubi`
export rootfs=$(cat /proc/mtd | grep rootfs | cut -d: -f1)
export rootfs_1=$(cat /proc/mtd | grep rootfs_1 | cut -d: -f1)
ubiformat /dev/${rootfs} -y -f factory.ubi
ubiformat /dev/${rootfs_1} -y -f factory.ubi
reboot
```
2. u-boot nand-factory.bin image method
- Put openwrt-*-squashfs-nand-factory.bin to your TFTP server and enter u-boot cli and exec these commands:
```
tftpboot <your_tftp_server_ip>:factory.bin
#After downloading is finished:
imxtract 0x44000000 ubi
flash rootfs
flash rootfs_1
reset
```
Signed-off-by: Shubham Vishwakarma <shubhamvis98@fossfrog.in>
