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+# PureFlash Guide
+## Introduction
+*PureFlash* is a command line tool for buring OS images into the flash memory using the Ecoboot MSC mode.
+The tool works only in the Linux system.
+
+## Howto use
+For invoke PureFlash we need to provide following arguments:
+```
+./pureflash [--force] filename blkdev
+ --force Skip device sanity checks (optional)
+```
+* --force - Is a optional argument, for skip sanity checking of the source and target
+* filename - Is a path to the purephone image
+* blkdev - Is a major block device of the purephone.
+
+## Example howto flash PurePhone image
+
+* Download the MuditaOS release in the tar.gz format.
+* Unpack the Release using the following command: `tar xf <release.tar.gz>`
+* Switch the phone into the MSC mode *<4>*
+* Check the phone block device using `lsblk` command
+* Ensure that the any partitions from the Pure disks are not mounted using `mount` command
+* If any partition from the Pure disk is mounted please umount partition using the `umount <path>` command, where the *<path>* is a mount point path
+* Flash the phone using the following command `pureflash PurePhone.img </dev/sdX>` where *sdX* is a Pure block device identifier<
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