Instructions:
1.Install latest Lucky Patcher
2.Run Lucky Patcher > Menu > Select 'Patch to Android'
3.Select √ 'Signature Verify always True' and 'Disable Zip Signature Verify' > Apply > Yes
4.After reboot go to 'Patch to Android' and check (Patch applied). If applied exit from Lucky patcher. otherwise do 3rd step again.
5.Backup current Google play with Titanium backup if you want to restore original version in case.
6.Rename downloaded 'GoogleMarket.by.Chelpus.TrueLicenseMod.apk' and transfer to sd card.
GingerBread users > rename to 'Vending.apk'
ICS / Jelly Bean users > rename to 'PhoneSky.apk'
7.Open Root Explorer and copy/replace renamed apk to '/system/app/' folder
8.Set permissions rw-r--r-- and Reboot
9.Done. All Apps on Device with LVL is licensed. (Tested to GoldenDict, TitaniumBackup, PowerAmp and other)