Location Need Urgent Help

Hi,I need help with my iBall Andi 4.5z MTK6572am unable to get network on WCDMA mode, It was working before but now its not workingI have re-installed the IMEI numbers using Mobile Uncle Tools>CDS information>RadioInfo.

IMEI Numbers are correct now but am getting 3G or H+ network at GSM/WCDMA only. Its Like No WCDMA signal
Please help me
Thanks.