How to use fastboot on Android phone from a computer with USB 3.0 ports only

It is rather unfortunate, but twrp.img could not be transferred to the Xiaomi phone simply because the computer from which it was done, did not have a USB 2.0 port.

To overcome this, connect a USB 2.0 hub to the USB 3.0 port of the laptop. Then connect the Xiaomi phone USB cable to . . . → Read More: How to use fastboot on Android phone from a computer with USB 3.0 ports only

How to find Windows 10 OEM product key

If you bought a new laptop with Windows 10 pre-installed on it, to find the product key in Linux, open a terminal window and enter the following command:

$ sudo strings /sys/firmware/acpi/tables/MSDM <enter>

How to speed up starting of Ubuntu 19.04 on the Dell Inspiron 5580

Open a terminal windows in linux and enter the following commands:

$ sudo apt-get purge snapd* <enter>

Above command removes snapd.

$ sudo systemd-analyze blame <enter>

Also, found the plymouth-quit-wait.service takes very long time in boot. To eliminate the problem, enter following commands:

$ sudo vi /etc/default/grub . . . → Read More: How to speed up starting of Ubuntu 19.04 on the Dell Inspiron 5580

How to find out network adapters on Linux

To find out the network adapter on the computer in Linux, open a terminal window and type the following command:

$ inxi <enter>

Wireless Adapter not detected in Linux Mint 19.1 on Dell Inspiron 5580

On a Dell Inspiron 5580, the wireless adapter is of Intel. The same is not detected when installing Linux Mint 19.1 the first time. This is because of the kernel not being updated.

Once Linux Mint 19.1 is installed, the later kernel 4.15.0-52 installed upon update, makes the wireless adapter work.

. . . → Read More: Wireless Adapter not detected in Linux Mint 19.1 on Dell Inspiron 5580

System scaling in Linux on 1920×1080 display (HiDPI)

Note system scaling works out of box with Cinnamon desktop. Open a terminal window and install it with:

$ sudo apt-get install cinnamon-desktop-environment <enter>

To do system scaling in the Gnome Desktop Environment, install the gnome-tweak tool. To do so, open a terminal window and enter the command as below:

. . . → Read More: System scaling in Linux on 1920×1080 display (HiDPI)

How to find out time taken in Linux by processes when starting the computer

To identify which system processes take how much time when booting your Linux system, open a terminal window, at type the following command:

$ sudo systemd-analyze blame <enter>

How to debloat, remove crapware from Xiaomi Redmi Note 5 Pro smartphone

Never look a gift horse in the mouth..

If you are one of those who is a technology connoisseur and love to compare specifications of smart phones before making a purchase decision, you need to be aware that the Xiaomi Redmi Note 5 Pro with 6 GB Internal RAM, best display and camera is . . . → Read More: How to debloat, remove crapware from Xiaomi Redmi Note 5 Pro smartphone

How to de-brick or unbrick or recover TP-Link WDR-4300 wireless router

Due to a wrong update of firmware, I bricked the TP-Link WDR 4300 wireless router I had. It was unused for a considerable period of time assuming that it had died due to hardware fault, with no hope of being resuscitated.

Finally, got some time to investigate it further and attempted to recover or . . . → Read More: How to de-brick or unbrick or recover TP-Link WDR-4300 wireless router

How to restart wifi after Suspend/Resume Ubuntu Linux

Ubuntu Linux installed on a Lenovo laptop randomly disables wireless networks altogether. Subsequently, it does not show any wireless networks too in Network Manager.

To resolve this issue, did the following:

$ sudo lshw -class network <enter>

Below is the result.

Notice the logical name wlp2s0b1 and the driver brcmsmac

*-network description: . . . → Read More: How to restart wifi after Suspend/Resume Ubuntu Linux

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