Recently I have purchased viewphone 3 with Android 2.3.7.When I try to install backup pro .It says your device is not rooted.So I tried with gingerbreak,Unlock Root,z4root, UniversalAndroot-1.6.2-beta5,SuperOneClickv2.3.3,Still I was unsucessfull.So I Download superuser.zip and universal_gb_root.zip to Install from sdcard,rebooted my phone.Press power button along volume +_ to recovery mode. I got boot menu When I move my Volume Up and down , to Select ,Cursor does't move but works fine with android app,It goes FTM MODE. So I connected usb to pc from command prompt I used "adb reboot recovery",I selected update from sd,Tried to Install universal_gb_root.zip I get Error signature verification failed. but I am able to move the cursor in recovery mode. I Tried All Methods after googling in the Internet .but device is working fine 100%.Please Help to unlock/root/bootloader also.