for low 3G signal and call drops try this
guide update solution error allowed 3g and drop calls
download the package here
https://mega.co.nz/#!Rx0SDapR!P6Mqcl...cSrWuXnCU07upI
extract the contents to a folder on your desktop you will end up with several files
go in the folder MauiMETA_exe_3G_v6.1216.0 right click on the file Maui META ver 6.1216.0 3G
compatibility propieta previous versions of windows (with this Win8)
if you have window7 can directly isattallare the program once installed
go right icon propieta compatibility win xp service pack3
this to install the program in this way I was able to install it
on both Win8 that on win7 both 64-bit and were operated
open the program installed as an administrator
to put the phone in recovery mode plug the usb cable
to go to device manager should see a device named csv sconoscuta update driver
by selecting the folder on your desktop and then the folder Driver - USB VCOM Driver (binary)
if you do not find the device go on the phone and still in recovery mode and do rebot now and do not touch it most
always refer to the guide and images that are in the translation file
back to the program and select Options --- Conenect smartphone into META mode
click Reconnect
select "updata parameter
Select the button: "change NVRAM DB
BPLGUInfoCustomAppSrcP_MT6589_S00_MOLY_WR8_W1248_M D_WG_MP_V2 search for the file
in the folder in the folder on desktopo database
click " Load from file "and browse for the file zp810.ini always present in the downloaded folder,
click on Download to flash: You will receive a message from the upgrade program completed did notice all that I have used this procedure.
das ist die erklärung von xda aber blicke da nicht durch
