How to Update AT&T HTC One A9 to Android 6.0 Marshmallow 1.27.502.5 A9 Base ROM [Simple Steps]

Androidbiits.com brings a stunning news for AT&T HTC One A9 [hiaeul]. According to XDA member Captain_Throwback, Android 6.0 Marshmallow 1.27.502.5 A9 Base ROM is released for AT&T HTC One A9 [hiaeul]. Version 1.27.502.5 Base ROM will let A9 users taste the stunningness of Marshmallow 6.0 on AT&T HTC One A9 [hiaeul]. Androidbiits.com has recently posted the step-by-step tutorial for installing Marshmallow 6.0.1 on Moto E XT1021 using Temasek v2.5.1. The spectacular news is that AT&T A9 owners can now install Android 6.0 Marshmallow 1.27.502.5 on AT&T HTC One A9 [hiaeul]. Isn’t it spectacular? Androidbiits.com will post the steps to update AT&T HTC One A9 to Android 6.0 Marshmallow 1.27.502.5 via A9 Base ROM.

It is expected that you will be able to install Marshmallow 6.0 version 1.27.502.5 A9 Base ROM on hiaeul effectively without having difficulty after reading the tutorial written in Androidbiits. Version 1.27.502.5 A9 Base ROM requires rooted hiaeul, so it is essential to root AT&T HTC One A9 [hiaeul] before installing Marshmallow 6.0 version 1.27.502.5 ROM. Well, you must install TWRP 2.8.7.0 on AT&T HTC One A9 [hiaeul] before installing version 1.27.502.5 A9 Base ROM. Oh yes, you can install version 1.27.502.5 ROM only after the bootloader unlock of AT&T HTC One A9.

If you aren’t happy with old firmware, then you must install Marshmallow 6.0 version 1.27.502.5 ROM on hiaeul. The spectacular thing is that version 1.27.502.5 A9 Base ROM will let you use Marshmallow 6.0 on AT&T HTC One A9 [hiaeul]. Androidbiits.com recommends that hiaeul users must take a backup of their important documents including contacts and games before updating their AT&T A9 [hiaeul] to Marshmallow 6.0 version 1.27.502.5 A9 Base ROM as there is a chance of losing all data including contacts and games from hiaeul.

Below are the steps using which you can install Marshmallow 6.0 version 1.27.502.5 ROM on AT&T A9. Androidbiits.com won’t take responsibility if hiaeul got corrupted during the installation of version 1.27.502.5 A9 Base ROM. AT&T A9 [hiaeul] battery must be more than 90 percentage before following these steps.

How to Install Android 6.0 Marshmallow 1.27.502.5 A9 Base ROM on AT&T HTC One A9 [Simple Steps]

1. It is essential to download Android 6.0 Marshmallow 1.27.502.5 A9 Base ROM for AT&T HTC One A9 [hiaeul] on your desktop.

2. It is the time to activate USB debugging on AT&T A9.

3. It is the time to attach AT&T A9 with desktop.

4. It is essential to transfer version 1.27.502.5 A9 Base ROM to AT&T A9.

5. It is the time to power off your AT&T A9.

6. It is essential to remove the USB cable from AT&T A9.

7. It is the time to put AT&T HTC One A9 [hiaeul] into Recovery Mode.

8. It is essential to tap “wipe data/factory reset” on AT&T A9.

9. It is the time to tap “wipe cache partition” on AT&T A9.

10. It is essential to click “install zip from SD card” on AT&T A9.

11. It is essential to choose version 1.27.502.5 A9 Base ROM on your AT&T A9.

12. It is essential to install version 1.27.502.5 A9 Base ROM on AT&T HTC One A9 [hiaeul].

13. It is the time to go to the main menu on AT&T A9.

14. It is essential to click “reboot system now” on AT&T A9.

15. It is the time to wait until AT&T A9 restarts.

After your AT&T HTC One A9 [hiaeul] is restarted, you can test Android 6.0 Marshmallow 1.27.502.5 A9 Base ROM on hiaeul. Isn’t it splendid? If you are having issue during the installation of Marshmallow 6.0 version 1.27.502.5 ROM on AT&T A9 [hiaeul], then don’t hesitate to share your issue with Androidbiits.com.

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