Once i purchased huawei h30 u10, i rooted it & tried to install custom recovery, No luck.. boot loop . ..
Then lucks worked
1. My base stock rom was B110 CUST
2. Rooted vy VRoot chinese version
3. Backup IMEI/NVRAM by MTK Droid tools
4. Updated with CHN B110 Via update.app method, Link:
https://cloud.mail.ru/public/95880b...are_China_Android 4.2_Emotion UI_05021KNH.zip, Mirror:
https://mega.co.nz/#!pdpGATCL!PTzzghLZGf6u-xCBKaCmY0FODvVb1zhK-jm4qEUjDOg
5. Updated well but IMEI lost
6. Rooted again
7. Recovered IMEI/NVRAM
8. Installed custom recovery by mobileuncle tools, Link:
https://mega.co.nz/#!0doz1JCa!nladFRMROLk1gRPK88qEEAM05Yg8CPe9UpO8DJ_ypLM
9. Hurrah.. succeeded having custom clockwork recovery
10. Now enjoying every type of ROM by flashing zip files from needrom.com and no need for updating by update.app
11. Now enjoying KitKat 4.4.2, Smooth
12. Makes backup on clocworks
This was the way i succeeded, but not guaranteed if it works for you.. try at your own risk