EML-L29V100R001 Advanced Maintenance Manual V2.1 
 
 
 
 
3.2 Software Update Guide 
3.2.1 Updating a Rooted Phone 
After a phone is rooted, use the fastboot tool to erase all data. Then, update the board software again. 
Step 1.  Run the Fastboot Erase Tool. Click the button marked as 1 next to Configure file, and enter the 
password huawei. Select the required .xml file from the MHA factory-level software package.