This is a fairly simple process. I based this guide in MPKG Installer English by Shadow_Cruiser, since it's the more efficient one I have seen (with the obvious language advantage ) there's a link t it at the end of this post
First, make sure that your phone is in Mass Storage Mode. Tap Setup> USB Mode and make sure that Mass Storage is selected.
Next, plug the phone to the PC. Windows recognizes it as a removable drive.
Download the application you want, unrar it if its packed, and make sure that the file extension is .pkg. If it's .mpkg, delete the m.
Place the pkg file in the root directory NOT inside a folder, and safely remove the phone.
Now, use the phone's File Manager to go to the root directory of the memory card.
If it's the first time you are going to install a pkg file, tap and hold the file until a pop-up window appears, and select "Open With" now a list of all the available applications in the phone appear, select MPKG (the orange box with a cd for version 3.1) and mark "Always use the program to open this filetype" now click OK
Now a pop-up window appears asking
"Do You Want To Install This PKG File?"
Obviously, you know the answer.
After clicking YES, wait a few seconds, depending on the size of the application you want to install, and then a new pop-up appears that says
"The Program is Successfully Installed and GUI will restart" click OK, wait a few seconds, and enjoy your new app.
In other versions of MPKG Installer, you must reboot the phone. [You must be registered and logged in to see this link.]
Info by: Archer
First, make sure that your phone is in Mass Storage Mode. Tap Setup> USB Mode and make sure that Mass Storage is selected.
Next, plug the phone to the PC. Windows recognizes it as a removable drive.
Download the application you want, unrar it if its packed, and make sure that the file extension is .pkg. If it's .mpkg, delete the m.
Place the pkg file in the root directory NOT inside a folder, and safely remove the phone.
Now, use the phone's File Manager to go to the root directory of the memory card.
If it's the first time you are going to install a pkg file, tap and hold the file until a pop-up window appears, and select "Open With" now a list of all the available applications in the phone appear, select MPKG (the orange box with a cd for version 3.1) and mark "Always use the program to open this filetype" now click OK
Now a pop-up window appears asking
"Do You Want To Install This PKG File?"
Obviously, you know the answer.
After clicking YES, wait a few seconds, depending on the size of the application you want to install, and then a new pop-up appears that says
"The Program is Successfully Installed and GUI will restart" click OK, wait a few seconds, and enjoy your new app.
In other versions of MPKG Installer, you must reboot the phone. [You must be registered and logged in to see this link.]
Info by: Archer