Improved battery management keeps your old hardware running longer. Troubleshooting Common Issues
Select "Wipe" > "Advanced Wipe." Check Dalvik/ART Cache, System, Data, and Cache. Do not wipe Internal Storage if your ROM is saved there. android 442 update to 70 verified
Move photos, contacts, and documents to a cloud service or PC. Improved battery management keeps your old hardware running
KitKat is highly vulnerable to modern exploits. A 7.0 ROM includes newer security patches. android 442 update to 70 verified