We are tyring out new 4.20 trojan for android. We have remove trojan 4.10 trojan, however after restarting the phone and installing trojan 4.20, phone doesnt appear in the server. From the running services we can see Android Services running in the phone. Phone currently on Android 2.3.5. 

On another note, trojan 4.10 install successfully on this phone, however Whatsapp messages doesnt appear in ther server.