Hmm. So you deleted your /data/app folder and most of the apps are gone? Whoops! lol And you are rooted. Do you have a custom recovery? I'm assuming so since you said you tried to restore a backup, is that correct? It would probably just be easiest to factory reset in recovery as that will remove the password and then when it boots, you can restore the keyboard app. Other option is trying to remove the password in recovery (has to be custom) with adb commands as you won't be able to while booted due to the password.
- and this does not work for every device, obviously.
Need some help, advice, something fixed? Hit me up on Hangouts @ es0tericcha0s and check out my site: http://mobilemojo5280.com
for more info!
HTC Droid Eris / Motorola Droid / Samsung Galaxy S Fascinate / Motorola Droid X / LG G2x / HTC Evo 3D (x2) / Samsung Epic 4G Touch (Sprint S2) / HTC Amaze / Samsung Galaxy S3 (International) / Samsung Galaxy Note 2 / Nexus 4 / HTC One / Samsung Galaxy S4 / Sony Xperia ZL / Nexus 5 / ? (One+1 maybe...)