Hi all, I have a Z1 c6903, I brought this phone from new as an unlocked to all networks phone from littlewoods only 4 months ago, now straight out the box it had android 4.4.4 kitkat, here's the problem...I sent it to Sony to fix a vibration on it, they sent it back to me fixed But changed the andriod from kitkat to jellybean?? I've messaged them emailed the contacted them but they Insist!! It's always been on jellybean and they haven't changed it, they don't believe me when I'm telling them IT WAS ON KITKAT 4.4.4...they downgraded it, all they tell me is try using your pc to update it, I HAVE... IT WON'T UPDATE... It's stuck on old jellybean 4., why is this?? It had kitkat, does anybody know why or whathe changed my phone? And how to update it to back to how it was, also thinking if it won't update to kitkat then it has no chance of updating to lollipop even though my friend has lollipop now on his Z1, I feel left behind about 3 years behind...
