First of all, what is a .deb file ?
It is a package which contains everything you need to install an application (often coming from Cydia). The package is edited by hackers, they modify the code lines and then it becomes a cracked application.
1st method : Mobile Terminal
[Steps 2 and 3 are only if you never installed a .deb file with this method]
- Download the .deb file you want (example : LockInfo)
- Start Cydia, go to "Search", type "Mobile Terminal" and install it
5. Type the following commands :
- su (press return)
- alpine (press return) /!\ You won't see the typed password then don't worry /!\
- dpkg -i nameofpackage.deb (press return, replace nameofpackage with LockInfo for the example)
Note that you can rename the .deb file like 1.deb (it's easier to type)
6. Reboot