This explains how to install a custom version of the software on your Android tablet. This is useful when completely restoring to a new version of Android or a different operating system. To do this, your tablet must be rooted and during the process all current information on your tablet will be erased.
Make a backup of your tablet. Before upgrading your tablet, you should make sure that all important data is backed up to a safe place. In this way, you can recover your data if your tablet is broken or unstable.
Root your tablet if you haven’t already . To install the custom software, you need to root your Android jailbreak tablet.
Enable downloads from unknown sources. This will allow you to download and install the software from the website instead of through the Google Play Store.
Tap Security or Lock screen and security .
Click the gray switch “Unknown Sources “.
Click OK when prompted .
Install custom recovery. Custom Recovery allows you to select a downloaded file from your Android device to flash.
Enter your custom recoveryAndroid and Chrome model number.
Find a reliable download site.
Find the download button and click on it.
Click the notification “Download Complete”.
Download custom ROMs for your Android device. Once custom recovery is installed on your tablet, all that remains is to download the read-only memory (ROM) file of the software you want to install. It depends on the exact model number of the tablet, so in custom romChrome enter the model number and search for the software like you did in custom recovery.
If you have the option, download the ROM in a ZIP folder instead of another folder format.
Do not click the notification that appears when the ROM download is complete.
Make sure the tablet is fully charged. When the tablet is 100% charged (or the tablet is connected), you can proceed to flash the tablet.
Power off the tablet. Press and hold “Power” button until a menu appears, then press ” Power off “. Some tablets require you to confirm this decision by pressing ” Power off ” or “Power off ” .
Put the tablet in recovery mode. How to enter recovery mode depends on the tablet manufacturer, but usually requires pressing a combination of buttons (for example, the “Power” button and “Volume Down”) at the same time.
If you don’t know how to put your tablet into recovery mode, please refer to the website where you previously downloaded custom recovery.
Use the volume buttons to scroll through the selection. Press “Volume Down” button to move cursor down and press “Volume Up” button to move the cursor up.
Select the Clear Data option. The phrases used here may vary depending on the personalized refund.
Press the power button. This will open the Clear data menu .
Confirm your decision. To do this, select the ” Yes ” option and press the “Power” button.
Wiping your Android device may take a few minutes.
Repeat the initialization process for the cache partition. Under Custom Recovery, select the option toclear the cacheif available and press the ” button Power” to select it and confirm your decision.
If the cache partition is not cleared, errors may occur later.
If you cannot find the cache partition option , it is likely that the cache partition was wiped during the data wipe process.
Select Install or Install from zip file . It should be near the top of the screen, but your custom recovery layout determines where the options appear.
Your custom recovery options may have slightly different wording.
Press the power button. Next, the install option will be selected.
Select from SD card and press “Power button “. You may also see options with different headings here, but the principle is the same for custom recovery.
Select Download and press the “Power button “. This will open the Downloads folder on your SD card, which should be the ROM you downloaded earlier.
You may need to first find and open your SD card’s home directory. This directory is usually a folder named 0/ at the top of the screen.
Select the ROM file and press the “Power button “. Depending on how many items you have downloaded to your tablet, you may need to scroll for a while before you find the name of the ROM.
Confirm your decision. Select Yes and press “Power On” button ” to start flashing the tablet.
The flashing process may take several minutes. Do not touch your Android device while it is flashing.
Reboot the tablet. When the phrase “Installing from SD card” appears at the bottom of the screen, return to the main Custom Recovery window, select the Restart option and confirm that you have decided to restart your Android device.
Set up your tablet. Since the tablet is new now, you will need to select your location information, preferred language, and other settings before you can use the newly booted Android system.
Article Source : https://www.wikihow.com/Flash-an-Android-Tablet