Stamina mode not working

[Jehdz]

I purchased c5 ultra a month ago. 1 week before my battery life is about 2 days+ without stamina mode on. with stamina mode on it will tak 4 days+. and after 3rd or 4th charge, the phone at fully charge goes 23 hours only. and stamina mode is only 1 day 3 hours. i reset the phone and still the same. i returned the phone for warranty. they changed the battery and after fully charge again it goe 23 hours and stamina mode on i goes 1 day and 3 hours.

[_alexdon_]

I think what you saw was the device adapting to your usage pattern. If you are an intense user and keep screen on most of the time, stamina won't create a huge difference. Stamina kicks in when the display is off and shuts off connections.

[Jehdz]

no not really. i dont use it too much. i still have my primary phone. the xperia ray. so  i used the xperia ray for calling, texting. i dont even play android games.

[_alexdon_]

And you say the case is the same like with your first device? Are you sure it was replaced?

[Jehdz]

yes they replace the battery only.

[Jehdz]

i think the problem is the android software. i returned the phone again in the retailer store. and i want to change the item to another smart phone

[_alexdon_]

I am sorry, you could perhaps try a software repair too just to be sure. If that doesn't help, return the device.

[Jehdz]

i already return the device. and i am waiting for the result if they are going to change the phone. do you think m5 is better than c5 ultra?

[_alexdon_]

I do not have any of them, but looking here it might be:

http://www.gsmarena.com/compare.php3?idPhone1=7463&idPhone2=7464

[Jehdz]

thank you. hope sony will fix the issues as soon as possible