This is official Infinix X551 Hot Note Stock Firmware (Flash File) for your X551 Hot Note device. Guides for flashing this X551 Hot Note Firmware are detailed below.
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Page Sections:
1. What is Flashing?
2. What is Infinix X551 Hot Note Stock Firmware
3. Infinix X551 Hot Note Stock Firmware Download
4. When Can You Flash Infinix X551 Hot Note?
What is Flashing?
This is the process of loading stock firmware, stock ROM or flash files on your device; Infinix X551 Hot Note, either via the recovery or by means of a computer software / tool such that the firmware files being loaded erases and or replaces the existing files on the phone.
In most cases, flashing resets and restores the phone to its factory default settings and wipes out every existing files and or data on the device.
What is Infinix X551 Hot Note Stock Firmware?
Stock Firmware which is also refered to as Stock ROM, Firmware Files or Flash Files, are the officially released files containing all the partitions of the phone. Stock firmware contains files and code needed to boot the device up and run its designed system on it.
Stock firmware also contains the GUI (graphical user interface), required and useful applications, support files for those applications along with all other files required to run the OS on the device.
Infinix X551 Hot Note Stock Firmware Download
1. Infinix X551 Hot Note Flash Files Download (X551-G808-A1-KK-28A-20150701) - 1GB RAM, 16GB ROM MTK Backup
2. Infinix X551 Hot Note Flash Files Download (X551-G808-B1-KK-28A-GMS-0150709) - 2GB RAM, 16GB ROM MTK Backup
3. Infinix X551 Hot Note Flash Files Download (Hot Note Pro) - 2GB RAM, 32GB ROM
4. Infinix X551 Hot Note Flash Files Download (X551-G808-A1-L-20160722) - 1GB RAM, 16GB ROM Lollipop
5. Infinix X551 Hot Note Flash Files Download (X551-G808-BC-L-20160722) - for 2GB RAM, 32GB ROM and 1GB RAM, 16GB ROM variants
6. Infinix X551 Hot Note Flash Files Download (Android 5.0 Lollipop, MTK Backup) - Works for all Hot Note and Hot Note Pro variants
For Infinix X551 Hot Note Stock Firmware and all other Infinix Stock ROM see here: All Infinix Stock ROM Firmware List Here
When Can You Flash Infinix X551 Hot Note?
There are a number of reasons for which you may need to flash Infinix X551 Hot Note. Below here, I enlist a few reasons why you might need to.
1. When there is need for you to upgrade or downgrade the device.
2. If you have forgotten the password or passcode to unlock the device.
3. If the device does not boot pass the welcome screen.
4. When the device is stuck at boot screen.
5. If the device reboots incessantly.
6. White screen displays that is not connected to the device's screen (hardware) issues can be corrected by flashing.
NOTE:
Flashing can correct virtually all MTK Android devices malfunctions or software related defects therefore; if you notice any malfunctions other than the ones listed above in the device, you may attempt flashing.
How to Flash Stock Firmware On Infinix X551 Hot Note
1. Download your Infinix X551 Hot Note Stock ROM firmware from above
2. Download USB VCOM drivers from here. See the instructions on the page for how to install the drivers on your PC.
3. Extract your Infinix X551 Hot Note firmware onto a folder on your PC.
4. Now, choose either of the service tools listed below here.
5. Follow the illustrated instructions on the page to flash the stock firmware on your Infinix X551 Hot Note.
Supported Service Tools
The service tools listed below can be used to flash stock firmware on Infinix X551 Hot Note. It's verified that most of them support this Infinix X551 Hot Note flash file, stock ROM format:
Also see this for: Qualcomm Devices or SPD Android Devices

Before you go, read these: