ios 9.2.1 update ~battery drain ~battery dying fast
I got my iphone 5s pretty much when it hit the shelves, never having an issue with battery life before in fact, my battery always kept great charge. Until this update!!
-During update I was never asked to back anything up or sign in or out of icloud, update was pretty fast!
-After update I unlocked my phone and checked a few apps, my screen froze up in facebook, not over thinking the situation I put my phone on charge over night.
- Following morning after unplugging my iphone I noticed my battery percent was in the 30’s, I just assumed the plug wasn’t connected correctly and thought no more about it. Until I was using my phone and noticed literally each second my battery was dropping and also feeling extremely hot to the touch. I removed my cover to help cool my phone down, decided to leave the battery die completely and then charge it to 100% thinking this might help.
-I googled the ios 9.2.1update and issues surrounding this, hmmm! noticed I wasn’t alone, reading all the tips and hints of conserving battery life, turn this off and turn that off, **** just turn everything off while you’re at it. Yes I gave it a go, turning off location, turning off all background refresh, pretty much everything in my settings that could be turned off I turned off, including signing out of my icloud as it was constantly upgrading with a spinning wheel, felt this may be causing the most of my battery drain and over-heating. After all this, with a full 100% battery I was sure all be ok, I was wrong, in fact the complete opposite, I lost 60% battery in 20 minutes, the only app I had open was my settings. Of course I was extremely annoyed, why after paying 599 for an iphone should I be stuck with a dying shell just because of an update. (I would suggest if anyone has this same issue, just leave your settings alone, turning everything off will not fix this issue, perhaps turn toggle on in low battery mode, if you want to try the following as it sorted my battery and over-heating)
Make sure your itunes on you computer is up to date.
2. Connect iphone to itunes via USB. Leave phone connected for a while and make sure it is charging while connected, I had the bolt of lightning on my screen but no charge (here I had to reboot my iphone as my computer would not charge it, as you will need a healthy enough battery for a back-up, place fingers on both sleep and home button together for 30seconds) try keeping phone on low power mode!
3. Click on iphone (summary) in itunes... (second section) Back up to this computer. I also clicked on back up my apps!
4. Once complete restore iphone(first section) (to factory settings) you will be prompted are you sure, and click on I agree etc etc. Seriously this took a lifetime (7 hours approx) as itunes had to download the software to restore the iphone. This seems to be normal and time tends to vary.
5. After the lifetime passed by and the software is downloaded I had to click on restore my iphone again, this time it restored taking a further 30-40 mins, once complete, you now have a new iphone and set up begins.
6. Iphone should restart with HELLO and ask for wifi settings.. Follow on screen instructions, hit continue when prompted in itunes, here it will ask you if you want to set up as NEW or Back up to the last back up, which you done earlier. Click on this option and allow phone to sync. Should take some time. All set up complete and battery at 100% all my apps had to re-install, this process is extremely slow, would probably be much faster too download all the apps from scratch IMO!
Anyway I hope this helps, it is a lengthy process but defiantly worth it.
Good luck.