[Android Q&A, Help & Troubleshooting] Rolling Hills of Green:
Hello.

This post describes how to reboot the Alcatel OneTouch Pop Icon A564C Yaris5NA into EDL mode. This can be achieved without root. It can happen on both Windows and Linux computers. It requires ADB to work.

1. Go into settings and "About phone" and tap the build number "01001" for about seven times.

2. Go into "Developer options" and enable "USB Debugging".

3. To install ADB drivers on Windows Vista, look for "Minimal ADB and Fastboot" on XDA and download extract and run the exe file. Do not forget to install Google drivers. On Linux, just install adb through terminal.

4. On Windows, go into "Device Manager" in Windows and look for "Android device" with a yellow triangle with an exclamation point. You may have two of these on your computer, so be sure to install drivers to both devices to avoid any error.

5. Right click on these devices and the menu appears hit "Update driver", than select browse my computer for drivers and eventually show all devices. Find the Google Inc. drivers and install one of three drivers; the "Android ADB interface" should work, but you may have to use the "Android Composite interface".

6. Go open CMD or Terminal and type adb devices. You will receive "Enable USB Debugging?" on your A564C phone so be sure to check the box and press Enable.

7. Now check adb connection by typing "adb devices", and the device should appear in the terminal; there should be letters and numbers on the left and authorized on the right.

8. Now type "adb reboot edl" to send the device into Emergency DownLoad mode. When you look on Windows a box appearing with QualComm HS-Loader 9000 (COM4) drivers will have installed. Look into Device Manager under ports (the serial cable icon)

Well, if you have this phone A564C and would like to develop on it, this guide may have motivated you to do make custom software. I think the only way to flash firmware is through QFIL program on Windows. Now we are looking for a FireHose programmer for the device in an attempt to unlock the bootloader the way the new ZTE method is described. My goal is to find the right FireHose programmer and to examine the partition manager and edit the bootloader to unlock it, or perhaps a way to somehow put the su binary in the /system/bin folder, or put a custom recovery on the device. That is my goal.

Here is my background on my device:

I have owned the Alcatel OneTouch Pop Icon A564C for over a year. I have read the posts describing many users who do not have enough space on their internal storage and that is why they need root. I have also read KingRoot can root but for me it is the opposite. I had tried rooting many times with the KingRoot. When the metre reaches a certain point, usually 18% or 70%, the phone crashes and reboots automatically or freezes and requires holding the power button to reboot. The phone is seemingly unable to root. Last week I acheived a true temp root that was lost upon reboot; the way I did it I installed KingRoot apks I downloaded from AndroidFileHost in order from oldest to newest, ran them once for reboot, then proceeded to uninstall each one and reinstall the newer KingRoot. I had noticed a phenomenon when using a newer KingRoot than going to KingRoot 4.1 I received root failed and it went back to 70% and I achieved temp root that way. I than restarted the phone in order to restart the method after a data wipe.

I then thought if there were other ways to root a phone other than using one-click rooting methods such as KingRoot. The phone was manufactured about six years ago, so it is old enough that exploits could potentially root it. I had tried Framaroot and Towelroot; both did not work. I installed a DirtyCow checker apk and it said the phone was patched, so I assume an exploit based on DirtyCow would not work. There may be one more method to finally allow root; it is called QuickRoot a Proof-of-Concept root for Android devices. It may work on older devices, but I do not know how to compile for Android 4.4.2.