How to increase Battery life on an Android phone with Cyanogen Mod 11

So you managed to install CyanogenMod 11 on your phone. Very good, till you realize that the battery just lasts 12 hours.

Nothing to worry about, as CyanogenMod has provided features that can help conserve the battery life once you activate the Performance menu.

To activate Performance Menu, go to Settings->About Phone. Look for the . . . → Read More: How to increase Battery life on an Android phone with Cyanogen Mod 11

How to enable Local Groups on Android Phone after installation of CyanogenMod 11

After installing Cyanogen Mod on an Android phone, comes the task of importing the backed up contacts.

In stock ROM of Samsung, Sony, etc, there is option of classifying contacts into groups that remain local. You can also filter by them and import/export contacts from/to by those groups only.

However, with Cyanogen Mod, you can . . . → Read More: How to enable Local Groups on Android Phone after installation of CyanogenMod 11

GridLayout struggle when it has excess rows and how to overcome

In my Java code, I am using GridLayout (line shown in red) in code below:

frame = new JFrame(“Contacts Details”); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mainPanel = new JPanel(); buttonPanel = new JPanel(); mainPanel.setLayout(new GridLayout(9, 3)); buttonPanel.setLayout(new GridLayout(1, 3));

The result was this:

Name [                        ] (Text Box for name) City [                        ] (Text Box for City) Cell . . . → Read More: GridLayout struggle when it has excess rows and how to overcome

Hidden option to view Phone Information and fix the type of network to choose

In the dialler, type *#*#4636#*#*

The next screen permits to set up the network type to select. There is a list of several options and any one of them can be locked down like GSM, WCDMA, LTE, etc.

Below code is for Bluetooth test: *#*#232331#*#*

How to install Cyanogen Mod 11 on Sony Xperia ZR

Most of us just use the Android Operating System supplied by our OEM (like Sony) and are happy with it, till we get fed up of using it or want to try something different. No one is responsible for whatever you do with below instructions. Everything is at your own risk.

If you own a . . . → Read More: How to install Cyanogen Mod 11 on Sony Xperia ZR

Elegantly list block devices on your Linux system with lsblk command

$ sudo lsblk <enter>

The lsblk command displays the devices in use on your computer as follows:

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 531.5G 0 disk ├─sda1 8:1 0 500M 0 part ├─sda2 8:2 0 260M 0 part /boot/efi ├─sda3 8:3 0 128M 0 part ├─sda4 8:4 0 54.5G 0 part . . . → Read More: Elegantly list block devices on your Linux system with lsblk command

How to add user to sudoers or the adm group on Ubuntu Linux

Use the following command in a terminal window to modify a user’s rights on Linux to make them a member of the adm group $ sudo usermod -a -G sudo,adm username <enter>

where username is the name of the user who you want to make a sudoer.

How to disable Whats New app on Sony Xperia in Android Lollipop

If you want to disable the Whats New app on your Sony Xperia Smartphone after updating the firmware to Android Lollipop 5.0.2, you can do so as follows without rooting:

Connect your phone via USB cable to the computer

Enable Developer Options and USB Debugging on your phone. Start the adb shell as in the . . . → Read More: How to disable Whats New app on Sony Xperia in Android Lollipop

How to encrypt swap partition on Ubuntu 14.04 LTS

If you installed Ubuntu 14.04 afresh, and selected home folder encryption, you will also get an encrypted swap partition. However, when the computer boots, you get the following error message: the disk drive for /dev/mapper/cryptswap1 is not ready yet or not present.

Note that you need to have a proper data backup and make sure . . . → Read More: How to encrypt swap partition on Ubuntu 14.04 LTS

How to upgrade Dell BIOS on a Ubuntu laptop with FreeDOS

Those of us who use only Linux Laptops like Dell’s Vostro 3546 with Ubuntu 12.04 LTS installed on it, cannot just apply the BIOS upgrades that Dell provides on it’s web site. The BIOS update file is actually a MS DOS .EXE file and it requires MS DOS to work. Here’s how to apply the . . . → Read More: How to upgrade Dell BIOS on a Ubuntu laptop with FreeDOS

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