It is assumed that Android 5.0 Lollipop OTA update will start on Nov 3. Besides the Nexus devices, many smartphones including from Motorola, HTC and Sony [see complete list here] will also get the Lollipop OTA (over the air) update in coming days. If you are excited to get the new Android L, you should make sure your smartphone is ready for the update.



To receive the Android 5.0 Lollipop OTA update, your phone should be prepared for it. If you have a cluttered or underpowered device, if it is unlocked or have custom recovery or custom ROM installed, you should make sure your smartphone is free from all that (at best) before you update it to Android 5.0 Lollipop.

To make sure your phone is ready for the brand-new operating system, read below to know how to prepare it for Android 5.0 Lollipop OTA update.

First, you should remove all unneeded files and apps from your device to make it clutter free. Also, you need to make a backup of the phone. The backup should be saved off the device.

If you have a custom ROM installed, you should revert to the stock ROM, because the OTA update will check the system before they install. If the checksum do not match, the update will not install.

Many users have custom recovery installed on their device, which will prevent the OTA update. You should restore the stock recovery image to fix the issue. You can use dd command, fastboot or manufactures tools for it.

Some devices will not install OTA update if the bootloader is unlocked. Bootloader is a security system to prevent users bricking their device. You need to relock the bootloader to factory state before updating your device.

On some devices (for instance HTC and Samsung), a tamper flag will set that indicate system files have been modified, for instance when install a custom ROM. This will also prevent the OTA update. The tamper flag should be removed before you update your device.

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Kannan is a computer and Android enthusiast, a blogger by passion and a tech freak. His always ready-to-help attitude, knowledge and hard work is what drives him.