How to DualBoot (Install) Two or More ROMS On An Android Device

Dual-boot was a term known with PCs until recently when one of the renowned XDA Developers figured out how to DualBoot two or more ROMs on an android device without loosing any data on the original ROM. This wonderful development allows you to test as many Android ROM as possible on your Android device before you eventually choose one.

Now, you don't have to flash/format your android device before you install another ROM on it. Simply DualBoot the ROM(s) on your phone and test them. If everything works fine on all the ROM(s), you may then flash the ROM on the phone and leave it permanently there!

In less than 5 minutes from now, you will learn how to DualBoot (Install) 2 ROM(s) on your Android device. Please note that this guide will only work for your Android Phone only if it's supported by DualBootPatcher Android app.

DualBootPatcherAndroid app is not developed by ArykTECH rather, it is part of the tools we at ArykTECH use often while performing servicing works on Android devices. However, if you have any question(s) about DualBootPatcherAndroid, I will be glad to help.
Credits: @chenxiaolong of XDA.

There's no way you will brick your device by following this Guide. You will only put your device in DANGER if you flash any ROM that's not Recommended for your device. Just make sure you follow the guide as promptly.
Recommended:

• How to Flash Custom Recovery On Samsung Android Devices
• How to Root Any Android Device without PC
• Check for Custom Recovery On ArykTECH Archive
• How to Flash Stock ROM On Samsung Android Devices

Step By Step Guide to Dual Boot (Install) two Android ROM On your Device

1. Make sure that the current ROM you are running is supported by DualBootPatcherAndroid app.

2. Make sure that your phone is rooted and that you have custom recovery installed.

3. Now, download the other ROM that you want to Dual Boot along with your ROM on the android phone.

4. Now, download DuaulBootPatcherAndroid from here and install it on your Android device. Remember: DualBootPatcherAndroid has to be installed on your primary ROM (The one you're currently running).

5. Following a successful installation of the DualBootPatcherAndroid app, launch/open it. It will ask you to select KERNEL. Select it and then reboot. If DualBootPatcherAndroid app didn't prompt you to reboot, just leave it.

6. Open the DualBootPatcherAndroid app (if you reboot your phone), click on ROM and you will see just your Primary ROM. Tap on the 3 dash on the top left hand corner of the phone and few options will pop out.

7. Click on Patch Zip File from the option, then click on the plus(+) button at the bottom of the right side of the phone.

8. Navigate to where the Second ROM you want to Dual Boot and click on it. A pop up containing your device info will show up, ignore that and click on the Partition Configuration and you will see the list of where to install the ROM. You can choose Data Slot or Extsd Slot.

9. Now the ROM will be installed on the phone and you will come to a stage where you are asked to give the ROM and ID. This ID will let you identify the set of ROM you have installed.

At any point in time, if you wish to install/FLASH any zip on the ROM you Dual Boot (just installed) from recovery, you MUST name it the same name as the ROM and follow this process from step #7.

If you are satisfy with the ROM name you choose, then click Continue. Then choose where you want to save the new ROM, and click SAVE.

10. Now, reboot to recovery and navigate to where you save the new ROM and flash it as normal. Don't worry, it will be installed with the configuration and the new name you set.

11. Following successful installation, reboot the phone. Wait patiently while the ROM initialises. It may take between 10 to 15 minutes before you see the Setup Screen.

12. When you've COMPLETED the Setup, the next thing to do is to install the DualBootPatcherAndroid app, so that you may be able to use it to Switch between the ROMS.

How to Switch Between the two (2) ROMs Installed On your Android Device

To Switch ROMS:
1. Open the DualBootPatcherAndroid app.
2. Press the 3 dash on the top left hand of the phone.
3. Click on ROMS (for the first time it will prompt you to Set Kernel, go ahead and do it).
4. Click on the ROM you want to Switch to (the one with a tick mark is your primary ROM and it is the one that will always boot up whenever your device restarts).
5. Reboot the device.
6. Once Rebooted, bravo! You're on the selected ROM!

How to Force Windows Device Recovery Tool to Downgrade your Windows Phone

As is a common practice for Windows and other smartphone manufacturers to pushing out frequent updates, it has become a common culture for smartphone users to installing each and every updates that arrive as well. While some updates fix issues plaguing previous release(s), some introduce new issues to your device. A good example is the Windows 10 build 14267 updates that rendered most Windows10 mobile devices' USB port malfunctioning as soon as Window is fully booted on the device.

Must Read:

• How to Flash Nokia Lumia Windows Phones Using WDRT
• All Nokia Lumia Windows Phones Firmware Download Page
• How to Install Windows10 On your PC

This among many other reasons is why Windows Device Recovery Tool exists. With the Windows Device Recovery Tool, you can correct most of the software issues you may be experiencing on your Windows mobile phones.
Here, I discuss how to use Windows Device Recovery Tool to force a downgrade on your Windows mobile phone.

How to Downgrade your Windows Mobile Phone to An Earlier Version Build

1. Download Windows Device Recovery Tool from here and install it on your PC.

2. Once the installation is complete, open/launch Windows Device Recovery Tool on your PC. Make sure your PC is connected to the internet all through this process.

3. On Windows Device Recovery Tool, click Didn't Detect and then, click Retry. Keep doing this while you proceed to the #4 step below.

4. While pressing and holding Volume Down + Power buttons, connect your Windows mobile phone to the PC.

5. After a short while, Windows Device Recovery Tool will detect your Windows phone and will begin initialization.

6. Wait patiently until the whole process is completed. Depending on your internet access source and speed, it may take up to 30 minutes or more to complete.

7. When the process is complete, your Windows phone will reboot and bravo! Welcome your phone to its previous functioning version build.

The scope of this process is to install the last working Windows mobile build on your Windows mobile phone and the whole process is automated. If you prefer to use the manual method, see here: How to Flash Windows Mobile Phone with Malfunctioning USB Port

How to Write IMEI On Android 6.X Marshmallow and Lollipop Without Root Access: MTK Androids

For some reasons, you may have to write new IMEI on your Android 6.X Marshmallow and Android 5.X Lollipop which are believed to be a little difficult and not straight-forward especially if you have not rooted the phone.
Here, I discuss how to write new IMEI on your Android 6.x.x Marshmallow and 5.x.x Lollipop without root access and in less than 2-minutes.
NOTE:

1. The method discussed here is used for MTK Android devices ONLY.
2. This method does not require root access.
3. This option does not work with some MediaTEK Chipset. I cannot conclude how many though.
4. This method has been confirmed with some Tecno, Infinix, Wiko, Gionee, Gowin, Opsson, Oukitel and some other MTK Androids.

How to Change Android 6.0 (Marshmallow) and Android 5.0 (Lollipop) IMEI

1. Download MTK Engineer Mode from here and install it on your MTK Android device.
2. Launch/Open MTK EngineerMod and navigate to Telephony.
3. Under Telephony, go to GPRS and tap it.

Once tapped, make a selection depending on the SIM whose IMEI you wish to change.

4. On the IMEI Space that appears, type the original IMEI that came with your Android device or type the IMEI you wish to change it to.

5. Once typed, tap on Write IMEI.

Repaet this process with every or any SIM card you wish to write new IMEI on.

6. Reboot the phone.

Note: you should reboot the phone each time you tap on Write IMEI. Thus, when you write new IMEI on SIM1, reboot the phone and repeat the same process with SIM2.

When Can You Write New IMEI On MTK Android Devices?

1. You can write new IMEI on your MTK Android when it's writes NULL IMEI. -this can happen when you have flashed the phone unappropriately.
2. You can write new IMEI when your MTK Android device displays INVALID IMEI. -this can also happen when you flash the phone using inappropriate or corrupted file.
3. Some people write new IMEI to attempt cheating the service provider. Some browsing cheats require writting new IMEI.
4. You may also be required to write new IMEI on your phone when you restore from a curropted backup file.

Other Methods for Writing IMEI On MTK Android Devices:

1. How to Write IMEI Using MTK Droid Tools
2. How to Write IMEI Using Mobile Uncle
3. How to Write IMEI Using WriteCode

How to Write IMEI On Other Chipset:

1. How to Write IMEI On HTC Android Devices
2. How to Write IMEI On Sammsung Android Devices
3. How to Write IMEI On LG Android Devices
4. How to Write IMEI On iTel Android Devices

How to Bypass iCloud Account and Disable Find My iPhone without Password: iOS 7, 8 and 9

This trick is being used to remove / bypass iCloud and deactivate Find My iPhone feature on iPhone and iPad without password on iOS 7. It is now updated to work for iOS 7 - iOS 9.3.3 thus, if you have an iPhone or iPad running iOS 7, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.1, 7.1.2, 7.1.4, 7.2.0, 7.2.1, all iOS 8 - 8.4 and iOS 9 - 9.3.3 version, you can now remove / bypass iCloud account and disable Find My iPhone on your iPhone or iPad without entering the password.

As for the iOS 9 - 9.3.3 and iOS 8 - 8.4, read on. Ordinarilly, the Apple Find My iPhone feature protects your iOS device from unauthorise use but, in the case that you forget the password to your own iCloud account which is already setup on the iPhone or iPad, you should not upgrade, wipe or factory reset the device otherwise, you will be locked out permanently except that you see an expert who can hack-in for you but that's illegal though.

Guides to Remove / Bypass iCloud Account and Disable Find My iPhone On iOS 8 and iOS 9

***Ensure that you read each step gradually and do as instructed.

Step #1: Jailbreak your iPhone or iPad: before you proceed with this trick, it is essential that you jailbreak your iPhone, iPad or iPod. Since we will be modifying the system files of the device hence we will need an iOS deeper file explorer which mostly require jailbreak. A good example of such is iFile which can be downloaded from Cydia.

Step #2: Lunch Cydia: from Cydia, tap "Changes" tab at the button and then tap on "Refresh" which then loads all the available apps on Cydia Store.

Step #3: Download iFile: from Cydia, download and install iFile on your iOS device. You can use the search button on Cydia Store to search for iFile. This iFile is a shareware application which means you can use it for as long as you want and you can also purchase its pro version for access to more advanced features. But this basic version is OK for the task ahead.

Step #4: Open the Multitasking feature of the iOS device by double-clicking the Home Button and from there, close all the currently running apps.

Step #5: Lunch iFile and then, navigate to "/var/mobile/Library".

In this directory, you will find many folders. For this task, two folders are important; "Accounts" and "ConfigurationProfiles". The "Account" folder is at the top while the other folder is found a little down the list.

Step #6: Open the Accounts folder. In there, you will see three files namely;

• Accounts3.sqlite
• Accounts3.sqlite-shm
• Accounts3.sqlite-wal

With these three (3) files, you can do two (2) things: (1) You can either delete these 3 files so that the iCloud account will be completely removed or (2) You can rename these three files. By renaming the files, you will be able to recover the previous iCould credentials when you rename them back.

NOTE: To delete the files, you can simply swipe from right to left on each file.

You may also delete all by using the edit button at the top, select them all and then tap on "Recycle" icon at the button.

Step #7: Now, you can come to the Liberary directory, scroll down and open "ConfigurationProfiles" folder. In it you will see "ClientTruth.plist" file, this file is usually located 2nd in the list. When you locate the "ClientTruth.plist", either delete or rename it also.

Step #8: Go back to Homescreen and then restart your iPhone or iPad.

Step #9: When you come back, open Settings >> iCloud and you will find that the iCloud account that was there is vanished! Wow!

What has happened is that the Software had created new files to replace the ones you have either renamed or deleted in previous steps so that it becomes filled with empty iCloud details.

Step #10: If you wish, you may now proceed to adding your own Apple ID / iCloud account details.

If you decide to switch to previous iCloud details, you can simply replace the new files with the deleted / renamed / edited files.

NOTE:

This tweak had been tested and proven working with iPhone 5, 5s, 6 and 6s. Even the Find My iPhone works too. Using either the new or old (deleted) iCloud account or Apple ID, you can backup your iPhone data, including photos, enable Find My iPhone anytime, check the location of the iPhone, iPad or iPod from another iPhone, iPad or PC.

Recommended:

• How to Remove iCloud at Setup: iPhone / iPad / iPod
• How to Jailbreak All iOS: All Jailbreak Tools

How to Confirm that this Tweak Bypasses Apple Activation Lock

***Make sure you confirm and cross-check each step before you proceed!

Step #1. Login your Apple ID on your iPhone and access your iCloud account on the same iPhone or iPad.

Step #2. Visit iCloud.com and check the list of devices connected to your iCloud account.

You will notice that the current iPhone is listed there.

Step #3: Now, follow the instructions given above on how to Bypass Apple ID / iCloud Account and deactivate Find My iPhone.

Step #4: When you have successfully deleted the iCloud account using the hack / trick / cheat discussed above, login with another Apple ID on the iPhone / iPad / iPod.

Step #5: Wait some minutes to syncronise the account and use iCloud features on the iPhone.

Step #6: Visit iCloud.com again and login using the new Apple ID (Step #4). Check the list of the iPhone / iPad / iPod connected to the account, you will see that the iPhone is now listed there.

This confirms that the new Apple ID has replaced the previous Apple ID that was deleted / removed from the iPhone / iPad / iPod.

How to Remove Factory Reset Protection On Samsung Android Device (FRP)

Here in this tutorial, I explain the step by step logic you can apply to remove Factory Reset Protection (FRP) on your Samsung android devices. This method has been confirmed working with some Samsung android devices meanwhile, your comment will be useful. If you are able to remove or bypass (FRP) Factory Reset Protection on your Samsung android devices using the method discussed here or otherwise, please comment.

What is FRP, Factory Reset Protection?

FRP, Factory Reset Protection is a security measure introduced to the Android 5.1 (5.0 in some) and beyond. This security ensures that you remain locked out when you factory reset your android device without first removing the Google account connected with the device. In other words, you have to sign in the Google account that was being used on the phone before it was factory resetted.

How to Bypass FRP (Factory Reset Protection) On Samsung Android

If a Samsung android device is factory reset and you get this message during setup:

This device was reset. To continue, sign with the Google account that was previously synced on this device.

It means the device is locked on FRP which is also called Factory Reset Protection. Note that this is different from Samsung Reactivation Lock.

Step #1: Download a firmware specific for that Samsung android device. This firmware must be an old firmware preferably, those firmware from December 2015 and below. You can download Samsung firmware from Sammobile.com

Step #2: flash the firmware you downloaded from the step #1 above on the Samsung android device. See here: How to Flash Stock Firmware On Samsung Android Device Using ODIN

Recommended:

How to Download All Samsung Stock Firmware without Download Limit (Superfast Speed)

How to Flash HTC Android Device

Step #3: After flashing the phone, disconnect the phone from the PC and turn it on.

Step #4: Now, download SideSync on your PC.

Step #5: Open SideSync and then connect your Samsung android device to the PC.

Step #6: A menu will appear on your screen, choose Browser >> Internet Browser.

Step #7: From the browser, go to alnajat.co. Download and install the apk on your Samsung android.

Reference: Go to Bookmarks >> History >> Download History

Step #8: Finally, open Settings.apk and perform a factory reset from there.

Alternative Method to Remove FRP Lock On Samsung

Continue from Step #8 above,

1. Go to Security and set a PIN for the phone lock. It should be 0000.

2. Go to Other Security Settings >> Trusted Agents and turn off Google Smart Lock.

3. Go to Easy Mode and select it.

4. Go back to Settings.apk and select Standard Mode.

5. Keep repeating the steps 3 and 4 until the home screen appears when you choose normal mode.

6. Now, go to Google Play, enter your PIN (0000) and setup a new Google account.

7. Restart the phone once completed. Now go to Settings >> Accounts and remove the Google account.

Congratulations! You have now successfully removed FRP Lock on your Samsung android device. You can confirm this by booting the phone to Download Mode where you will see that FRP Lock staus is OFF.

How to Remove/Bypass FRP Lock On BlackBerry Priv (Factory Reset Protection)

Here in this tutorial, I explain the step by step logic you can apply to remove Factory Reset Protection (FRP) on your BlackBerry Priv. This method has been confirmed working with most BlackBerry Priv meanwhile, your comment will be useful. If you are able to remove or bypass (FRP) Factory Reset Protection on your BlackBerry Priv using the method discussed here or otherwise, please comment.

What is FRP, Factory Reset Protection?

FRP, Factory Reset Protection is a security measure introduced to the Android 5.1 (5.0 in some) and beyond. This security ensures that you remain locked out when you factory reset your android device without first removing the Google account connected with the device. In other words, you have to sign in the Google account that was being used on the phone before it was factory resetted.

How to Bypass FRP (Factory Reset Protection) On BlackBerry Priv

If a BlackBerry Priv is factory reset and you get a message similar to this message during setup:

This device was reset. To continue, sign with the Google account that was previously synced on this device.

It means your BlackBerry Priv is locked on FRP which is also called Factory Reset Protection.

Step #1: Put on your BlackBerry Priv.

Step #2: Connect it to a WiFi service.

Step #3: When your BlackBerry Priv shows checking connection and immediately it shows Software Update switch off the router (or your WiFi hotspot Source) so that your BlackBerry Priv will be disconnected.

Step #4: Hit next until you get to the Pattern Lock screen. Setup a pattern lock from there and restart the device.

Step #5: When the phone restarts, it will be locked with the pattern you setup earlier.

Step #6: Open the Dialer button from the lockscreen and dial *#*#4636#*#*. This will take you to the BlackBerry Priv secrete menu.

Step #7: From there, tap Usage Statistics and then, tap the BACK button. This will take you to the Settings.

Step #8: Now, scroll down to backup and reset.

Step #9: Reset your BlackBerry Priv. When this is complete, the phone will restart and there will be no need to enter previous Google account again.