How-to smart cell phone repair broken hardware and software errors. Troubleshooting and fix it. Modifications operating system to improve performance.

How to Unlock Coolpad E580 Screen Locked with TalkBack Enabled

How to Unlock Coolpad E580 Screen Locked with TalkBack Enabled

Many confused users to unlock the cellphone screen are locked when TalkBack is enabled. For example, as on the Coolpad E580, it cannot draw patterns and enter a PIN because it is interrupted by TalkBack. Every time you tap the screen a green box will appear.

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How to Backup and Restore QCN File Using QPST Utility

How to Backup and Restore QCN File Using QPST Utility

The QCN file is the result of scanning the File System (EFS) Encryption partition which contains encrypted information such as IMEI, MEID, Serial Number, Configuration, Radio Settings and Settings, etc. in an encrypted format using the QPST Utility.

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How to Reset Userdata and FRP LG K220DSZ Using Infinity Box

How to Reset Userdata and FRP LG K220DSZ Using Infinity Box

Reset user data and Google account because it requests verification (FRP) in an instant using the LGS software from Infinity Box. Follow the steps below:

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How to Fix Screen Overlay Detected on Lenovo A7700

How to Fix Screen Overlay Detected on Lenovo A7700

Application blocked by screen overlays detected, so it doesn't work. This problem I had experienced when I used the Lenovo A7700 Android Marshmallow operating system. Follow the message on the screen, but the application cannot be permitted. Bringing your smartphone to Safe Mode and giving permission is the best solution compared to doing a hard reset.

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How to Fix SP Flash Tool Failed to Get PMT Info

How to Fix SP Flash Tool Failed to Get PMT Info
What should I do if I get a notification Failed to Get PMT Info in the SP Flash Tool? This problem often occurs when flashing smartphones using the MediaTek chipset. Failed to Get PMT Info can be solved by not pressing any buttons when the smartphone is connected to a PC. Without pressing the Volume Up / Down, just plug the smartphone into the PC and make sure MediaTek USB Port is detected in the Windows Device Manager.
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How to Hard Reset Sony Xperia Arc S LT18i

How to Hard Reset Sony Xperia Arc S LT18i
Step by step how to reset Sony Xperia Arc S LT18i using dial number caused locked pattern or You want to restore the factory settings. Turn on the phone. On the pattern screen, touch Emergency Call. Type a dial number *#*#7378423#*#*. Customization Settings → Reset Customization → Reset.
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How to Enable Diagnostics Mode Port Oppo Neo 9 A37F

How to Enable Diagnostics Mode Port Oppo Neo 9 A37F
Already tried this tutorial but the Oppo A37F device is not connected Diag Port, only detected Android on Device Manager despite updating drivers. What should I do? Install Qualcomm Drivers. Install Windows Drivers for Android Debug Bridge. Enable USB Debugging and OEM Unlock via Developer Options. Connect the device to the computer. Dial Number *#67766776# and you're taken to the Engineer Mode screen. Click the Serial Interface/PC Assistant button and the Connect Successfully mess...
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How To Fix Invalid IMEI Lenovo A369i Using MTK Droid Tool

How To Fix Invalid IMEI Lenovo A369i Using MTK Droid Tool
The dead boot phone comes back to life after updated firmware using ROW S108. New problem arises that Invalid IMEI after Dial Up *#06#. Have tried Restore IMEI using Miracle Box, UFI, Chameleon APK, SP Flash Tool still fails. Based on the experience there is another solution to fix that using MTK Droid Tool and successfully tried.​Your phone must be rooted. If not, root using Kingo Root Apps for Windows.​Download and extract MTK Droid Tool.​Download and extract Backup NVRAM Lenovo A369...
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General Info eMMC Xiaomi Redmi Note 3 Pro Qualcomm

General Info eMMC Xiaomi Redmi Note 3 Pro Qualcomm
General info eMMC Samsung KLMBG2JENB-B041/32GB which is used Xiaomi Redmi Note 3 Pro Qualcomm Snapdragon. 
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How to Check Status Bootloader Xiaomi Locked or Unlocked

How to Check Status Bootloader Xiaomi Locked or Unlocked
The bootloader status specifies the method of flashing Xiaomi phones. If the bootloader status is unlocked we can install ROM via Fastboot Mode, if locked via EDL Mode (Emergency Download Mode). There are 2 ways to check bootloader status as follows:Fastboot ADB Commands​Go to Fastboot Mode. Turn off device and press Volume Down + Power keys.Connect the device to PC.​Type the command "fastboot devices" and press Enter. Make sure the device serial is detected. If not, install the Qualcomm driver ...
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