(2014-06-25, 00:34)putoazul Wrote: Hi.
I have invalid IMEI when upgrade tu 4.4.2 official firmware.
You need root shell. Open MTK Droid Tools and click on IMEI / NVRAM. Here you can write your IMEIs. Both imei can be found under the battery.
Reboot, well done
(2014-06-26, 19:08)akwangwu Wrote: Mobile uncle will fix your problem, have a nice try
you can download at playstore
First you must backup your IMEI with mobileuncle tools ... you only can restore your IMEI backup with mobileuncle tools. But you can write IMEI in engineer mode
ZP990 2/32 MT6589T | PS7 2/16 MT6592