Q: iPhone 4S 5.0.1 Update Improves Battery w/ Settings Reset

jrez wrote:

 

I have tried this reset approach a couple of times. The best result I have seen was 7 hrs usage and about 25 standby. Does not seem like very good numbers since I have everything turned off. And I do mean everything. The only difference between this and my iPod is a can make Phone calls. I have read several replies of people updating to 9a406 version due to an issue with the SIM card. I am on Sprint and to my knowledge there is no need for a SIM card on there network. Does anyone know if there would be an issue with just removing my card since its not needed. I'm up for anything right now. As long as it involves not taking the phone to the Apple store so I can be there for 3 hrs and not get anything resolved.

jrez... 7 hrs of usage combined with 25 hrs of standby is good and well within specification.  apple official specification is the following:

• Talk time: Up to 8 hours on 3G, up to 14 hours on 2G (GSM)
• Standby time: Up to 200 hours
• Internet use: Up to 6 hours on 3G, up to 9 hours on Wi-Fi
• Video playback: Up to 10 hours
• Audio playback: Up to 40 hours

note that those are independent maximums which means you will get 200 hrs "or" 6 hrs of 3G data usage not both, etc. so, according to spec and asumming you had an even mix of 3G/Wi-Fi data usage i get the following:

for standby, 25/200 -> 12.5% standby usage.  for 3G/Wi-Fi (i.e. 7.5 hr average), 7/7.5 -> 93.3% data usage.  12.5 + 93.3 = 105.8%.  that suggest that you ~ got 5.8% better than the official specification which is very good.  sure all these are estimates, but that is still very good.

Two Thumbs wrote:

 

Please help!  My iPhone 3GS heats up and the battery drains real fast.  What should I do?

Follow my steps below and in the exact order as specified... good luck!

1. Reset all settings (settings app-> general-> reset)

2 a. Go through initial setup steps (lang, wifi, siri, enable location, etc) and choose setup as new phone (don't worry your apps, data, contacts, mail will still be there). Do NOT restore from iCloud or iTunes (It can copy back corrupt settings)

2 b. If you do not get the complete new setup screen with language setup and setup as new phone or restore from iTune/iCloud backup, be sure to go back to #1 and reset all settings again (it should happen the second time)

3. Turn off system location services timezone and iAd (settings -> location services -> system services)

4. Fully discharge battery (until you get the spinning wheel and it shuts off)

5. Fully recharge battery (overnight if possible)

In my experience this improves the Standby battery drain issue significantly in most cases.  It reduces drain from 2-4% or more per hr to 0.5% or less. It has worked for many, many users now. If it does not work after a few try's you may have a real battery or hardware issue and should contact Apple.  Good Luck!

bladester wrote:

 

hey!Davidch -  cheers mate! I'd given up hope - and to be honest was a bit cynical about the drain and reset theory = tried it and my battery is still sitting at over 80% - off charge for 8hours - vast difference! very pleased if it stays that way....now - just the weak wifi to deal to - new antenna on the way but may wait for mext OS upgrade first! Got any more magic for that one David??

bladester... cheers . glad it worked out so well for you!  no "magic" to improve wifi, but in my experience iphones are typically very good with wifi (strong signals and staying connected).  have you tried any other wifi routers to be sure the current one is not the issue.  also, phyically moving closer to it can help a lot

anastasiosfromcincinnati wrote:

 

Ok my final test is as follow :

 

Usage : 6 Hours

Standby : 2 Days , 6 Hours

 

And i still have 4% Battery remaining!

I think that is 13% better than the official specification which is good

 

What do you think davidch ?

anastasios... that looks very good.  glad it is working out for you.  enjoy your phone!

attaax wrote:

 

 

Davidch I am gonna buy new iphone 4S, what I have to do to

 

enhance battery life ? ? Thank you

 

After you get the phone and sync or backup from iTunes, follow my steps below in the exact order as specified... good luck!

1. Reset all settings (settings app-> general-> reset)

2 a. Go through initial setup steps (lang, wifi, siri, enable location, etc) and choose setup as new phone (don't worry your apps, data, contacts, mail will still be there). Do NOT restore from iCloud or iTunes (It can copy back corrupt settings)

2 b. If you do not get the complete new setup screen with language setup and setup as new phone or restore from iTune/iCloud backup, be sure to go back to #1 and reset all settings again (it should happen the second time)

3. Turn off system location services timezone and iAd (settings -> location services -> system services)

4. Fully discharge battery (until you get the spinning wheel and it shuts off)

5. Fully recharge battery (overnight if possible)

In my experience this improves the Standby battery drain issue significantly in most cases.  It reduces drain from 2-4% or more per hr to 0.5% or less. It has worked for many, many users now. If it does not work after a few try's you may have a real battery or hardware issue and should contact Apple.  Good Luck!

9tigereatrice wrote:

 

Hi

I just recently did the steps on my new iphone 4s also. My battery life seems to be average but my caller ID have stopped working after settings reset. All my contacts are still there but calls coming in or recent calls, there is no name just number.

How can I fix this? I'm on Verizon.

 

Thanks

this is a common problem wth verizon... dial *228 and then option 1. wait until it finishes. then close the phone and message app (double tap home button, hold an icon until the  red circle shows and tap each app to close). after a minute or so try it.

attaax wrote:

 

THNX DAVIDCH , I DON'T WANNA BACKUP OR SYN MY IPHONE ,,,,,, BECAUSE I AM NEW IN APPLE IPHONE , I NEVER USED IT BEFORE, I HAVE NOKIA BEFORE SO I WANNA ASK CAN I MAKE CHOICE OF SETUP AS NEW IPHONE ? ? ? ?AND IF THIS WHAT I HAVE TO DO IT AFTER THAT ? ? ? THANKYOU FOR YOUR REPLY AND TIME

attaax,

after setting up the iPhone as a completely new phone (no transfer of previous backups, etc), a "reset-all settings" is probably not necessary, but certainly won't hurt either (you will just go back though those basic new user steps, but no added data will be deleted).  either way, you still want to calibrate the battery to the software and, accordingly, will need to fully discharge and fully recharge.  again, steps #1 and #2 are probably redudant in your situtation, but certainly won't hurt.  you still want to follow steps #3, #4 and #5 with you new iPhone 4S.

good luck