After installing the update make sure you reset all setttings. I have done a few updates now and have had much better sucess after settings reset all. Standby drain has been virtually eliminated from 2-4% hr before update. It is located in settings/reset//reset all settings. You loose some wifi and desktop settings, but data, apps, etc remain intact.
BradSK wrote:
Hi all, just posting for some advice regarding a system restore.
It seems as though most people have had success after doing a system restore and setting up as a new phone (when I updates to 5.0.1 I needed to restore but chose iCloud backup instead). I am reluctant to lose too much info, so could someone advise me as to what kind of data would be lost a d what could be recovered from the cloud (not via restore but from my old phone)? I know things like apps and music would have to resynced but that's not a problem.
Thanks
Before doing a system restore, try the steps below. Corrupt system level settings created by an iOS 5 bug in the original release that caused battery recalibration issues, etc. Just installing the update does not fix the issue in most cases (sometime it initially can be worse). You need to clear out those settings and recalibate the battery. For those still having the "standby battery drain" issue follow the procedure below in order. It does fix the problem in most cases.
Go through these steps to address the battery after updating to iOS 5.0.1:
1. Reset all settings (settings app-> general-> reset)
2. 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 photos, will still be there). At this point, Do NOT restore from iCloud or iTunes (It can copy back corrupt settings)
3. Turn off system location services timezone and iAd
4. Fully discharge battery (till it shuts off with the spinning wheel)
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!
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!
It seemed like I was a little too quick with my reaction. After a second charge, the battery drain occured again (2-4% drop in 1h standby).
I've looked further and found firmware 9A406 (special firmware for 4S).
Some people had good results by upgrading to this firmware.
Executed steps:
- restore with 9A406
- no restore of backup (configured all settings manually)
=> good battery life time (2h standby test: 0.5-1% per hour)
- added my apps via Iphone (not via Itunes)
=> good battery life time (2h standby test: 0.5 - 1% per hour)
- added my exchange account and other mail accounts
=> bad battery life time (2h standby test: 2 - 4% per hour)
I looked into my OWA and I saw a sync conflict of two messages. I deleted them
=> no battery impact, still 2 - 4% battery drop per hour
The final steps where: disable push, location services for iAds and time.
Finally,(at this time) I have the battery life time of my old Iphone 4
(At this time 74% with 1h50 of use and 8h47m of stand-by time.)
Bluetooth and wifi are constantly active.
For anyone new to the thread be sure to go through these steps to address the battery after updating to iOS 5.0.1:
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!
For anyone new to the thread be sure to go through these steps to address the battery issues after updating to iOS 5.0.1 or 5.1:
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!
One other note. After the phone reboot just go through the default setup ( i.e lang, wifi, Siri, etc) and choose "setting up new phone". Don't restore. That will just reinstall potential corrupt settings. Your apps and data will still be there as before. Really hope this helps some folks. My personal 4S is sitting @58% after 14hrs and moderate use.
day 2 ... stil seeing very good performance. i charge overnight and after two hrs of mostly standby and one quick phone call this morning, the battery is still holding 99% charge. the only other recommendation, i have for folks still having issues in addition to the steps above, is to do a full discharge of battery after the 5.0.1 update is installed. i did this once shortly after i received the phone, but did not need to after the update. however, i have seen on some other forums that this resolved the issue after the update.
sflomenb,
"resetting all settings" sets only the basic sytem level settings back to default. this includes desktop wall paper, network, screen brightness, etc. all your data, apps, mail and iCloud should remain the same and not be unaffected. after reboot and going through setup (re-choosing lang, wifi, enable location, etc) choose "setup new phone", NOT restore from iCloud or iTunes backup. also be sure to fully discharge and fully recharge battery.
No, you do NOT want to do a restore. Carefully, read my post throughout the thread especially the first few. You want to "reset all settings" and setup "as new phone". All your apps, mail, and data will still be there as before. Re-adjust your screen brightness where you want, wallpaper, etc and I still recommend turning off general -> location -> system -> timezone (and iAd). Then use your phone until it is fully discharged and recharge it overnight
davidch wrote:
No, you do NOT want to do a restore. Carefully, read my post throughout the thread especially the first few. You want to "reset all settings" and setup "as new phone". All your apps, mail, and data will still be there as before. Re-adjust your screen brightness where you want, wallpaper, etc and I still recommend turning off general -> location -> system -> timezone (and iAd). Then use your phone until it is fully discharged and recharge it overnight
Thanks. Will it prompt me to set up as a new phone after I reset the Settings? I thought setting up as a new phone means to restore it.
Thanks. Will it prompt me to set up as a new phone after I reset the Settings? I thought setting up as a new phone means to restore it.
yes... it will reboot and you will go through initial setup process like when you first get the phone (i.e. choose lang, setup wifi, enable location services, enable Siri, etc). toward the end you will have choice to "setup new phone", "restore from iCloud backup", or "restore from iTunes backup". choose "setup new phone". again, all you data,apps, mail, etc will still be there like before. it is a little confusing terminology, but hope that helps.
csal109,
you need to "reset all settings" again and this time be sure to choose "setup as new phone". again, you do NOT want to "restore". after you complete the setup process, you want to recalibrate the battery (full discharge followed by a full recharge). you apps, data, mail, contacts, etc will still be there. a "restore" will just copy potential corrupted settings that are likely to be the cause of the problems. carefully read my post especially the first few and follow exactly. i have seen it work now for 10 plus users now consistently. if it does not work, you likely have something wrong with your hardware.
good luck
csal09 wrote:
davidch
After doing the update to 5.0.1 I noticed my battery was draining almost twice as fast. So I did what the apple care tech told me to do. That was to turn off my iPhone and plug it into iTunes while holding the power and home button, releasing the power button at 8 seconds and waiting for the restore pop up option in iTunes. Then just set up iPhone as new. It still didn't fix my issue so I tried resetting all settings. Still the battery drains al
Oat twice as fast. As I type this reply my battery was at 100% and is now at 86%. This is the same case on my iPad I should have never got rid of my iPhone 3GS. I would much rather go back to that. Apple has replaced my 4S twice since I got it on the 29th.
csal09,
i understand this can be frustrating, but you need to try my recommendation in the exact order that i suggest. i have seen it work consitently many times now. again try "reset all settings" under the settings -> general -> reset. once the phone reboots, go through the initial setup process (lang, wifi, sir, enable location service, etc) and choose "setup new phone", then "start using phone". next, go to settings -> location services -> system and turn off timezone and iAd location services. next, completely drain your battery (watch youtube watever until it goes off with the spinning icon), let it sit and cool off for a few minutes, then completely re-charge it overnight. if that does not improve the standby battery drain issue, i recommend you take it to an apple store. they will likely offer you a replacement or a refund. they also still offer the 3GS for free w/ 2 yr commitment if you want to go back to that.
best of luck
sflomenb wrote:
Ok, I readded my iCloud and Gmail accounts. Now should I reset the Settings again?
hey... i am back. busy day at work today and did not get chance to log in. sorry to hear it did not work so well for you so far, but it does seem very successful for many as i expected. i can never hurt to try to reset your all settings again. the mail changes will remain. you will need to go back and turn of the system location services though (i.e. timezone, iAd). everything else i leave on. i am currently only using mail and reminders with iCloud and i also have a business imap mail account. be sure to fully drain and fully recharge after. i am on my fourth day now and it still working very good. i am at 71% remaining with 1.5 hrs usage and over 16 hrs standby. remember the fix primarily addresses a standby drain, imho. heavy usage can still pull on it, just as any iPhone i have owned. if this does not work this time i would suggest completely wiping you phone as new, setup as new phone, sync add you data (i.e. mail, contacts, apps, media, etc). you may just have a bad battery or hardware which does occur from time to time.
I have done all the steps, plus I did a hard reset after completing the battery drain/recharge. From the weekend to a full day at work on Monday, my battery performance has improved. Usage 5hrs (lots of emailing, 3 calls); Standby 2 days, 2 hrs; Battery at 1%. I left the battery drain to shutoff and then recharged. I let the iphone sit in standby overnight and woke up to 97% battery. I checked the stats and it said 25 min of usage vs 6 hr standby. Since I have my mail setup to fetch every 30 min and with 2 mail accounts, that would be 24 times the iphone checked email so it makes sense for the usage to be around 25 min mark.
Settings for me:
Bluetooth = off
Notifications = all on except for calendar notifications
Location Services = under system services; all on except timezone and iAds
iCloud = photostream and documents/data are on
Mail = push at the top menu; under advance, I set all my emails plus the iCloud to fetch
Sync to Itunes = on
One check if the battery life does not improve would be to let the phone sit in standby overnight without a charge; note the usage before then after waking up check the usage again. If the usage seems abnormally high (should be minutes of usage especially if your mail is set to fetch), then you probably still have some type of operation running. If not, then you may truely have a battery issue.
I did notice an interesting post in a different discussion topic from ZDNet on Nov 14. It suggests the issue is related to configuration setup and software.
http://www.zdnet.com/blog/hardware/test-suggests-iphone-battery-issue-not-a-hard ware-problem/16250
Thanks, davidch!
Seems to have worked perfectly well for me.
Before:
Charged on Sunday. 100% Sunday evening. Stand-by over the night. Monday morning after waking up only 50+%. Roughly 5% loss per hour in stand-by.
Shock!
First I tried some of the "simpler solutions on Monday (locations off, iCloud off, most notifications off).
But I could still literally watch the battery percentage drop lower while looking for a solution.
After following your suggesntions:
Reset all settings, drained the battery and re-charged (iphone switched off during charge) on Monday.
100% Monday evening.
Tuesday afternoon after only light use (only some telephone calls) still 88% (20 hours stand-by, 1 hour usage)..
With settings now pretty similar to yours.
Seems that my initial mistake was restoring from an itunes backup (iphone 3G to iphone 4s).
Somewhere in "there" must have been a problem causing the iphone to try and do "something" in stand-by (Wifi connection at home).
iPhone 4S 5.0.1 Update Improves Battery w/ Settings Reset
