iphone 4S ios8.3

IPhone 4s latest update

I had a perfectly working, fairly fast iPhone 4S with the battery lasting 1 day, IOS 7.1.2.

Than i decided to update it to IOS 8.3, and I wish I have n ever done it !!!!

-The battery life reduced to 4 hours and by the end of the week I had to replace it.

-With the new battery, still would not work more than 6 hours.

-Running Safari or Good Reader or Notability (paid version), the bottom right side of the screen would get incredibly worm.

-Double click Home would take 2 sec to get into it and another 3 sec before you are enable to move/delete the apps in memory.

-After have made a phone call, it would take about 2sec to update the phone call log list and if you are too fast clicking on the next number to call it will dial back the previous number with the obvious consequences.

-If you need to save a number after someone’s call, clicking on the number information will take 3 seconds to open the info panel from where you can "Add to new contact" meanwhile you would have thought to have “missed touched” the screen re-clicking again and again on it, creating a cascade of delayed actions for up to 6sec before enable to complete the process.

-After using safari, activate the cam and a black screen will stay with you for at least 3 sec (by the way still missing an option to choose reduced resolution shooting).

-Using Safari to watch 3-4 YouTube movies, than passing to the camera it could not work at all and you will need to restart the iPhone.

-Steps done to try to resolve the basic above problems (still tons of other but not important to me)

1) full reset of the phone(12-14sec holding home+off)

2) full reset of the phone to manufacturer status and install everything back in (twice) , with some app not restoring properly (documents lost)

3) turn off Wi-Fi and data and see if it improves( not much, especially when you have to save a new contact number that just call you)

4) tune all the apps and turn off the spot light search

(still nothing)

5) I called Apple centre and in ½ h they just manage to tell me to do what I did already with no solution and no possibility to go back to the previous ios7.1.2 as Apple, in purpose, removed the boot strap disabling the restore.

They don't care, with this action they secure everybody to upgrade £500 phone, this is very bad. Just to say, I have bought 3 iPhone, 2 mini iPad , 2 iPad, 1 Mac book Pro and AppleTv for all my family £3500 worth of apple products and they still dont care (the items all under the same apple registerd email so they can verify)

Using cpu analysis app I was enable to see that the iphone 4s its not enable to handle the complexity of multi tasking of the IOS8.3 and 8.4, so, WHY APPLE DECIDED TO SEND THE UPDATE TO THIS OLD DEVICE? I HAVE MY LIFE IN THIS PHONE AND I AM USING IT FOR WORK,

your triple my working time on the phone which is driving me insane.

pls restore the boot strap and give use the link for the IPSw to enable the restore to the IOS 7.1.2/2