After hard resetting, just easily boot the phone into Fastboot mode and open your Miracle Crack, Android TAB, select HTC, Reset FRP and select Method 2. Cli Hard Reset your HTC One A9 Hard Reset is the process of removing all files and data from your phone to fix some errors which can’t be fixed. After performing this process all data will be wiped from your devices such as personal information along with all the errors and corrupt files. If you cannot unlock your HTC One A9 and are unable to access the phone's settings, you may still be able to reset it using one of the following methods: Use Android Device Manager or Find My Device. If you have set up Android Device Manager or Find My Device on your HTC One A9, you may be able to remotely reset it using the web browser on a Hard reset One Hard reset Desire 816 Hard reset U12+ more HTC . HTC; Hard reset Desire 820 Hard reset Desire 825 How to put HTC One A9 on safe mode? Download HTC One A9 TWRP recovery. Install the TWRP on HTC One A9 using fastboot. Download the LineageOS 15.1 ROM on your PC and transfer it to the device. (Link is given above.) Then, flash/install the LineageOS 15 ROM to your HTC One A9 and get the goodness of Oreo up and running unofficially. Android 8.1 HTC One A9 LineageOS 15 Oreo. Reboot into Safe Mode by pressing and holding the POWER button, then tap and hold Power off until the Reboot to safe mode prompt appears. Tap OK. After the phone reboots, open the Phone app and dial *#*#3424#*#*. If prompted, tap Accept. Select one or more types of test to perform, and then tap Run. How to update / change / repair Firmware in HTC One A9 by RUU mode? In this article we will explain how to repair, change or update the firmware in HTC One A9 in a few simple steps. The whole process will be performed without any specialist tool by using just a computer and a microSD card. Step 1. Make sure you have unlocked bootloader of your One A9. To do so now, check our guide on One M9 bootloader, and use this to unlock bootloader on your One A9 as the procedure is exactly same. Step 2. Download the FOUR files required for One A9 root using this method. Keep them in a new folder called roota9. Step 3. Downloading apps from the web. Setting up HTC One A9 for the first time. Ways of transferring content from your previous phone. Installing a software update. Installing an application update. Installing app updates from Google Play. Adding your social networks, email accounts, and more. Setting a screen lock. Setting up Smart Lock. Restarting HTC One A9 (Soft reset) Resetting HTC One A9 (Hard reset) Connectivity. Internet connections getdRS.