Huawei honor 6 upgrade to EMUI3.0 and returned to EMUI2.3 version

1 upgrade notes
1.1 matters needing attention
Please read the version of the characteristics, cautious upgrade.
1) version of the software requirements
A) to ensure the use of mobile phone before the upgrade for the Huawei original version, no other online non official version of the upgrade, otherwise there is a risk the upgrade is not successful and may introduce unknown problem.
B) please don't try to customized version of the other countries, otherwise there is a risk the upgrade is not successful and may introduce unknown problem.
C) if root or file system modification on the phone, please don't try to upgrade or return.

2) hardware version requirements
Please check carefully whether the phone models with ROM package, if you use other phone models, software upgrade may cause can not boot the consequences.
For the user as the mobile phone faults in contravention of the above considerations lead, HUAWEI not warranty repair.
1.2 note two
If there is an important content, suggest first make a backup before upgrade. In order to ensure that the battery in the process of upgrading the adequate power, suggest that during the upgrade to connect USB line power supply.
1.3 note three
SD card brush machine Unicom customized models do not use the release package brush machine, please to the official website to download the official China Unicom customized version: http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=99
Unicom custom models identificati:

2 Version requires
The 2.1 version of history information table.
Please read carefully the ROM corresponding to the release notes and historical versions make sure you are currently in use in the version can be upgraded to the ROM.
2.2 upgrade environment
You need to use the Micro SD card upgrade
2.3 upgrade file list
File Name
Main software upgrade package: dload \ UPDATE.APP
Upgrade Media: Micro SD Card

3 upgrade preparation
3.1 check the upgrade environmental compliance requirements
Check whether the MICROSD card can read and write, the remaining space must be greater than the SD card package. Recommend the use of Sandisk, Kingstone, or Kingmax.
3.2 check the upgrade package
Please follow the 2.3, check the software upgrade package.

4 upgrade instructions
There are two kinds of modes: the normal and forced upgrade upgrade upgrade
For normal upgrade version upgrade or other needs of the situation to the user.
Forced to upgrade is suitable for mobile phone can not boot, need to repair, or other needs of the situation.

5 upgrade operation
5.1 note:
1) please make a backup of important data and application before upgrading.
2) during the upgrade process, ensure the battery must be greater than 15%
5.2 normal upgrade steps
1) to prepare a 2G above Capacity SD card, recommend the use of Sandisk, Kingstone, or Kingmax.
2) format the SD card (optional).
3) confirm that the UPDATE.APP file in the dload directory, and then the dload is copied to the SD card root directory.
4) the SD card into the phone boot, wait for the SD card recognition and after loading, into the "Settings" menu, select "set the phone to upgrade the system software update local upgrading", according to the dialogue and choose whether to backup data, and finally select "upgrade" button to begin the upgrade. As shown in the figure below (font color will vary):

5.3 mandatory upgrade steps
1) to prepare a 2G above Capacity SD card, recommend the use of Sandisk, Kingstone, or Kingmax.
2) format the SD card (optional).
3) confirm that the UPDATE.APP file in the dload directory, and then the doad is copied to the SD card root directory.
4) and wait for the complete shutdown, shutdown
5) and press the volume up and down keys and the power button, continue to press for more than 10 seconds, at this time, the phone will automatically trigger the SD card upgrade operation, system wait schedule the phone will automatically restart and enter the new version, as shown in the figure below (font color will vary):

6 version rollback
If you need to fall back to EMUI2.3 EMUI3.0 version stable version, please refer to the following precautions and steps
6.1 Precautions
1) We currently only support SD card mode fallback version.
2) fallback version must pass the subcontract, this version allows only fall back EMUI2.3 stable version.
3) Each model has a corresponding the subcontract, please select the corresponding phone models subcontract:
Huawei honor 6 H60-L01 in the subcontract: http://dl.vmall.com/c0zjt1yiv7
Version Download: http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=70

Huawei honor 6 H60-L02 in the subcontract: http://dl.vmall.com/c07djh23p2
Version Download: http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=76

Huawei honor 6 H60-L11 in the subcontract: http://dl.vmall.com/c0gpatk1ug
Version Download: http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=81

Huawei honor 6 H60-L12 in the subcontract: http://dl.vmall.com/c0uvqam22t
Version Download: http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=82

Huawei honor 6 H60-L21 in the subcontract: http://dl.vmall.com/c0apot9vvj
Version Download: http://www.emui.com/plugin.php?id=hwdownload&mod=detail&mid=94

6.2 The version rollback operation steps
1) into the "Settings" menu, select "Settings - System Update - menu - local upgrading", according to the dialogue and choose whether to backup data, and finally select "upgrade" button, to start upgrading.
2) after the upgrade is complete, create a dload directory in the root directory of the SD card, will brush EMUI2.3 stable version of the package (please download from the EMUI website station brush corresponding models of bag) into the SD card dload directory, in the boot state, into the "Settings" menu, select "settings - system updates: menu - local upgrading", according to the dialogue and choose whether to backup data, and finally select "upgrade" button, to start upgrading.
3) after the upgrade is complete, the EMUI version back to the stable version of EMUI2.3.

6.3 Unicom customized models version upgrade error rollback method
If you are a Unicom customized models, recognition method, please refer to chapter 1.3, if inadvertently brush to the EMUI3.0 version, can cause repeated error which led to the mobile phone can not be used, can be restored through return to the stable version of the EMUI2.3 method.
We strongly recommend you by any means will Unicom customized models refresh to non operators customized version of the EMUI3.0, please to the official website to download the official China Unicom customized version of id=hwdownload&mod=detail&mid=99 http://www.emui.com/plugin.php?.

Rollback operation steps
1) first put the phone SIM cards are removed, close the error window.
2) create a dload directory in the root directory of the SD card, SD card will H60-L02 Unicom subcontract into the dload directory of non customized models under the special B002 (L02 package address to be synchronous).
3) into the "Settings" menu, select "Settings - System Update - menu - local upgrading", according to the dialogue and choose whether to backup data, and finally select "upgrade" button to begin the upgrade.
4) after upgrading into the system, will be the root directory of the SD card transfer under the dload directory to delete the package, brush and then Unicom customized models dedicated B118SP02 package (please download from the EMUI website station) into the SD card to the dload directory, in the boot state, into the "Settings" menu, select "Settings - System Update - menu - local upgrading", according to the dialogue and choose whether to backup data, and finally select "upgrade" button to begin the upgrade.
5) after the upgrade is complete, enter the system will repeatedly error, this time shutdown.
6) in the off state (at this point the phone don't insert USB line), press and hold the volume up and down keys and the power button, continue to press for more than 10 seconds, at this time, the phone will automatically trigger the SD card upgrade operation.
7) wait for the upgrade of schedule, EMUI version back to the version of B118SP02.