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Old May 24th, 2012, 05:35 PM   #1 (permalink)
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Default Battery Drainage after Updating to ICS

Hello,

Ive been more than happy with my Notes Battery Life before the Update. It usually lasted about 1 1/2 day with normal usage.
Ive updated my phone last Saturday to ICS and now my phone isnt even lasting 8 hours.
I didnt install any Apps or made any changes after the update. The only thing I did is change my settings back to my prefernces.
I can basically watch my phone losing its charge and i noticed that it becomes quite hot when I am carrying it in my pants.
Actually using my phone for something acclerates this even more.

I wonder of anyone could give me any hintson how to prevent this? I really regret that I updated to this firmware because besides the battery issues some things like Firefox even run rather shaggy....

Thanks in advance!

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Old May 24th, 2012, 07:05 PM   #2 (permalink)
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there is power saving mode you can access from notification pull down. I am currently testing it. Got around 8 hours yesterday, playing music for around 4 hours non stop, reading ebooks, checking facebook & twitter, and downloading apps from play store.
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Old May 25th, 2012, 01:51 AM   #3 (permalink)
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go into settings applications and check for running apps....

Also look at battery usage and see whats using it.

Apparently if you upgrade without 100% charge the battery needs to re-calibrate..

I had battery drain and it was caused by go sms or an associated go app. I removed them all and it seems the battery usage is flat
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Old May 25th, 2012, 03:58 AM   #4 (permalink)
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i have experienced some quite severe variances in battery use.

sometimes it's fine, and "normal" ie perhaps 10% an hour in use. Other times it's like 10% in 10 mins. Checking battery stats its sometimes not obvious whats causing the problem, like "mediaserver" taking up 50% or Skype suddenly going into hyperdrive, even whatsapp one time.

yesterday i panicked a bit, because it was draining even on charge! But then it settled down after half an hour and started charging normall. weird s**t.

it does make using the note on battery a bit uncertain. Why cant these companies accept they have a "beast" on their hands and stop trying to weight save all the time. its a big mother, what's another 50 grams gonna make the difference? - double or triple the blooming battery size from the get go and stop the nonsense. give it 15000 mah! yay!!!

is your hyper drain completely consistent? suggest you check the battery stats regularly to try and get a feel for whats going on.
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Old May 25th, 2012, 04:00 AM   #5 (permalink)
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rule of thumb, dont install ANYTHING unless you really need it, and remove unwanted apps asap. Like a pc, all these apps can cause conflicts in addition to battery drains.
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Old May 25th, 2012, 12:31 PM   #6 (permalink)
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Same here. Just updated to ICS and now it seems like the battery is draining. Dropped from 96% to 76% in 2 hours 45 minutes, and most of the time the phone is on stand by.. Any news on that or solution?
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Old May 25th, 2012, 04:08 PM   #7 (permalink)
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Same here. I used get 1.5 day usage before upgrade. Now its around 15hours... Looks like OS not optimized...
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Old May 26th, 2012, 04:28 AM   #8 (permalink)
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i used to get around 1 to 1.5 days with net on constantly on gb with moderate usage now it last hardly 8 hours...
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Old May 26th, 2012, 04:34 AM   #9 (permalink)
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Ics is using hardware often than gb, eg. processor for muktitasking which is better than on gb. So its not strange that it drains battery more
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Old May 26th, 2012, 01:31 PM   #10 (permalink)
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Angry Please can I have GB back, I mean really

Whether ics is cleverer, better at multitasking or whatever, but battery only lasts 8 - 10 hours of very light use then for my money it's an absolute disaster.

Anybody knows if we can downgrade to GB?

It's getting to the point where I can't keep the damn thing charged to unless I keep it plugged in and then it gets crazy hot.
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Old May 26th, 2012, 03:22 PM   #11 (permalink)
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Here is tutorial for s2:
http://androidforums.com/androidlot.com/downgrade-samsung-galaxy-s2-with-android-4-0-3-ics-to-2-3-6-gingerbread

I think u can use it to downgrade note's firmware.
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Old May 26th, 2012, 09:07 PM   #12 (permalink)
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Why don't you try draining the battery to close to 10%, and charge it overnight and see what's you getting?

It seems my battery life has improved that way...
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Old May 26th, 2012, 09:25 PM   #13 (permalink)
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try to charge the phone until 100% and then pull out the battery and reinsert it
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Old May 27th, 2012, 05:22 AM   #14 (permalink)
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the notes battery ,like the sgs 2 is self calibrating, give the rom a few days to settle, ics is a large rom , clear anything you dont use (there is a list of safe apps to remove on xda) dont do any factory resets or large wipes or cwm wipes on ics or you will brick your phone, gb roms or cm9 roms or roms using cm kernels are the only safe roms as of now, with kernel source out now devs should have more safe ics roms soon
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Old May 27th, 2012, 11:00 AM   #15 (permalink)
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I haven't yet updated to ICS (still not available in the UK) but yesterday I probably pushed the battery hardest yet. It was fully charged at 7AM, I spent an hour and a half on a train with Bluetooth connected to wireless headphones, while Mobile data was on just about all day. Wifi was on for part of the day but not connected to anything. Quite a lot of time was spent web browsing, playing music, editing photos and uploading to Facebook and one of my web sites' photo galleries. By 10PM the battery was indicated to be down to 5%. So 15 hours of reasonably heavy use and still a little juice left.

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Old May 27th, 2012, 08:27 PM   #16 (permalink)
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I am planning to gauge the longevity of the battery for seven days. I will let it drain to less <9 %and then charge it overnight while I am sleeping.

In the waking hours, I will use it to listen to musics all day, do e-book reading for about 1.5 hours total, browsing with mobile data for about 3 hours total, and watch video for about 1 hours total. I will turn off the wifi while I am still at work (around 8 hours off WIFI)

In the seven days, I will take screenshots of the battery conditions just before I sleep.

In the end, I am hoping that the Note can last 18 hours this way, but let's see the results.

As for starter, you can see my battery usage in a sunday, mostly at home, wifi on, used for reading ebooks and browsings. Good run life, 15 hours to 11%.
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Old May 28th, 2012, 01:42 AM   #17 (permalink)
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Here what I did on my G-Note based on the same drainage issue and memory leak in my Blackberry Bold.
1. After updated to official ICS, my G-Note became hot at all time because processor is downloading something fishy. Battery survive barely 8-10 hours only during normal usage.
2. Backup all data and settings then do a factory reset. Restore backup file. (Better if you backup and restore data before updating to ICS)
3. After factory reset, u will lose all apps installed from Playstore. Install them again from Playstore. U dont have to pay again any paid apps. Only games data lost, got to start new. Apps installed before updated to ICS could be the culprits of memory leaks and battery drain. Some apps which are not fully fixed or updated got issues with ICS.
4. Do a battery calibration by discharging until 1-2% left. Recharge again for 8 hours or more just like when we first using it. Do not do this too often, can overkill the battery.

After I did all these, my G-Note is back to normal and awsome with Nova launcher.
Good luck everyone.
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Old May 28th, 2012, 02:42 AM   #18 (permalink)
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Quote:
Originally Posted by koolman View Post
Here what I did on my G-Note based on the same drainage issue and memory leak in my Blackberry Bold.
1. After updated to official ICS, my G-Note became hot at all time because processor is downloading something fishy. Battery survive barely 8-10 hours only during normal usage.
2. Backup all data and settings then do a factory reset. Restore backup file. (Better if you backup and restore data before updating to ICS)
3. After factory reset, u will lose all apps installed from Playstore. Install them again from Playstore. U dont have to pay again any paid apps. Only games data lost, got to start new. Apps installed before updated to ICS could be the culprits of memory leaks and battery drain. Some apps which are not fully fixed or updated got issues with ICS.
4. Do a battery calibration by discharging until 1-2% left. Recharge again for 8 hours or more just like when we first using it. Do not do this too often, can overkill the battery.

After I did all these, my G-Note is back to normal and awsome with Nova launcher.
Good luck everyone.
glad to here you "got away" with doing a factory reset on ics you might not be so lucky next time ,have you not heard what has been happening with the emmc bug on ics , triggered by wipes of any sort...please do not suggest to someone on ics to do any wipes as this can and has happened many times cause that person to have a brick , then its back to sammy for a motherboard replacement @300 euros, ouch
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Old May 29th, 2012, 05:01 AM   #19 (permalink)
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There are always risks.. especially when u cannot hold on anymore with this battery drainage.. I've learnt that updating from official froyo to gingerbread also got this issue..
The safest way to update is to do a factory reset while on GB. It will erase downloaded apps and its data before u update to the official ICS using KIES. This will greatly reduce any chance of brick or memory leak.
Like I mentioned, the previous downloaded apps on GB may not 100% compatible with ICS. Most of free apps got adds and bugs..
Note: Only apply this for official ROM.. never try flashing to other custom ROM. Custom ROM surely got bugs!

Note: My version: N7000DXLP5
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Old May 29th, 2012, 06:23 AM   #20 (permalink)
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thought it was only a few that had been locked and as said already doing the upgrades outside of kies can result in locks on previous versions.

I had no issues - I did non wipe. ICS works fine for me.

I also think its a bit hypocritical for samsung to release software outside of kies that can brick your device and they wont honour warranty. As far as I'm concerned I've used official fw and thats the problem. Not the method of installing it.
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Old May 29th, 2012, 11:20 AM   #21 (permalink)
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Not only samsung do this. Eg. Sony/SE gave ICS beta which needs unlocked bootloader to flash (unlocking bootloader void warrant)...
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Old May 29th, 2012, 10:16 PM   #22 (permalink)
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Same here ICS upgrade went smooth with no issues, only the battery life has been literally decimated, my GNote went from one day of extremely heavy business use (14Hrs) to two days of moderate use with Ginger Bread 2.3.6 to just a few hours with ICS (8 if I am lucky) if I am very careful with the phone it can only just about make it through the working day.

Charged the Note last night, lost 3% while I was asleep, since 7 am this morning the phone has dropped to 50% with very moderate use, nice one Samsung. I will give it a week (already 2 days), if the phone remains the same I will look to revert to GB.

There is a lot of good in ICS, however reducing the run time to 20% - 25% of GB make it a useless upgrade to me. Hopefully it will improve over the next few days, but so far given the numbers I am seeing for my usage pattern it will need to work miracles
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Old May 30th, 2012, 02:21 AM   #23 (permalink)
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Still waiting for ICS but I have been logging the battery life of my Note in readiness for comparing with ICS once I get it. I normally have wifi, bluetooth, mobile data and GPS switched off until I need to use them but yesterday I left wifi on all day. Admittedly I didn't do a great deal with the phone yesterday - a few short phone calls, some texts and some web browsing, but after 16 hours (7AM-11PM) there was still 41% battery remaining.

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Old May 30th, 2012, 05:11 AM   #24 (permalink)
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I have just upgraded to ICS and the battery life is half of what I had previously. Today, I disconnected it from the charger fully charged at 9am. By 3pm, the battery was almost flat. And that was with less than 20 minutes of screen on time. The graph shows Exchange Services taking up 62% and Email 18%!!!! My stock email app with the Exchange is configured to sync only once per hour.

Something is drastically wrong. We need an emergency patch quickly.
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Old June 4th, 2012, 01:54 AM   #25 (permalink)
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Quote:
Originally Posted by dworkin View Post
Whether ics is cleverer, better at multitasking or whatever, but battery only lasts 8 - 10 hours of very light use then for my money it's an absolute disaster.

Anybody knows if we can downgrade to GB?

It's getting to the point where I can't keep the damn thing charged to unless I keep it plugged in and then it gets crazy hot.
Sure u can my Friend
Just Download ur preffered GBrom from SAMMOBILE.com
Use ODIn and put THE rom in PDA place , hit START

Then UR DONE,,,,,,,,,,,,,,

If U want in details PM me.........
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Old June 4th, 2012, 02:49 AM   #26 (permalink)
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No battery problems at all after ICS for me.
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Old June 4th, 2012, 03:01 AM   #27 (permalink)
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When I first got the phone the battery would drain quickly, I was advised to switch of social hub and since then it improved loads.

I have also upgraded and installed ICS and noticed a big drop, for some reason I can't switch of background data which is also another drain but in all the excitement of getting ICS I completely forgot about Social Hub.

Switched it off yesterday and Im.up to 45% left with 11 hours use.

My advice is to kill social Hub and see how you get on, previous to this I was struggling to.get 8 hours out of ICS although I have now drained the battery 3 times so it could be that.
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Old June 4th, 2012, 03:15 AM   #28 (permalink)
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Good advice, although I did not have to do that myself. But logically there has to be one or more explanations as to why some people are experiencing poorer battery life after the update. My hunches are:

You're using your device more because it's got a shiny new OS.

Mobile data defaults to on all the time and apn switch apps no longer work.

Other apps like social hub default to on all the time.

Power saving settings previously in use reset.

Battery profiling reset by update.

Anyone care to add to the list?

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Old June 4th, 2012, 10:19 PM   #29 (permalink)
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Same problem here, my note can only last 8 hours with light use.
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Old June 5th, 2012, 09:27 AM   #30 (permalink)
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Quote:
Originally Posted by ifb-online View Post
No battery problems at all after ICS for me.
Same here. Twenty five hours so far on battery and 31% left. And that's with browsing web, twitter, emails and some other random stuff.
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Old June 5th, 2012, 03:11 PM   #31 (permalink)
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Quote:
Originally Posted by GiggityGiggity View Post
Same here. Twenty five hours so far on battery and 31% left. And that's with browsing web, twitter, emails and some other random stuff.
Twenty five hours is very good for ICS
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Old June 5th, 2012, 05:44 PM   #32 (permalink)
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Today after 14 hours of quite heavy use with wifi or mobile data on constantly, browsing, watching video, etc., I have 15% battery left. Tomorrow I will manage power much more carefully and report back.

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Old June 5th, 2012, 07:18 PM   #33 (permalink)
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I think the battery life of the note is quite impressive given all that can be done on this phone,it really is like a mini pc,at the moment charge mine every two days and am really happy with that considering how much I use it,I don't leave data or wifi on unless I am using it,why waste battery and I don't sync automatic its just not necessary for me,overall really happy :-)
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Old June 6th, 2012, 12:18 AM   #34 (permalink)
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Quote:
Originally Posted by salla43 View Post
rule of thumb, dont install ANYTHING unless you really need it, and remove unwanted apps asap. Like a pc, all these apps can cause conflicts in addition to battery drains.
Yah.. tell me about it.. everybody knows the rule of thumb
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Old June 6th, 2012, 05:56 AM   #35 (permalink)
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Today I'm only enabling wifi, mobile data, bluetooth and GPS when and if I need them After 3.5 hours I have only used 3% of my battery.

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Old June 7th, 2012, 06:27 PM   #36 (permalink)
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After almost 40 hours I still had 11% battery left. This was achieved by only enablling mobile data, wifi, bluetooth, or gps when actually needed.

In this time 400MB of data was transferred over wifi. I used my Bluetooth headphones for a couple of hours on and off, watched a few video clips, browsed the Web, updated apps, etc.

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Old June 8th, 2012, 09:25 AM   #37 (permalink)
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So basically you had everything switched off and didn't use the net much???
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Old June 8th, 2012, 10:20 AM   #38 (permalink)
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Not only do I have the battery drainage, but even clearing memory still leaves large amounts in use with nothing running, presumably being used by the system.

As soon as I can find an official (not custom) GB ROM to download I'll be using Odin to revert.

If any of you who have not yet upgraded can tell me the ref no of the Samsung UK GB firmware I should be looking for I'd be grateful.

Should have made a note before I upgraded - hindsight is a wonderful thing!
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Old June 8th, 2012, 10:56 AM   #39 (permalink)
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Quote:
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So basically you had everything switched off and didn't use the net much???
400MB over two days isn't using the Net much? Maybe not excessively, but that included six email accounts with a couple of hundred messages, an hour or so watching video clips on the Web and YouTube, a couple of hours of Bluetooth headphone listening, some phone calls and texts, etc. Pretty much my normal daily use of my Note. The key thing though is that I only allowed wifi, mobile data, gps, bluetooth, etc. to be on when I needed it.

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Old June 8th, 2012, 10:57 AM   #40 (permalink)
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Not only do I have the battery drainage, but even clearing memory still leaves large amounts in use with nothing running, presumably being used by the system.

As soon as I can find an official (not custom) GB ROM to download I'll be using Odin to revert.

If any of you who have not yet upgraded can tell me the ref no of the Samsung UK GB firmware I should be looking for I'd be grateful.

Should have made a note before I upgraded - hindsight is a wonderful thing!
If you haven't previously rooted your Note, doing a factory reset may solve your post-ICS problems. It's reported that if your Note has been rooted then doing a reset is a risky choice and may brick your phone.

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Old June 8th, 2012, 05:13 PM   #41 (permalink)
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If you haven't previously rooted your Note, doing a factory reset may solve your post-ICS problems. It's reported that if your Note has been rooted then doing a reset is a risky choice and may brick your phone.

Ian
Honestly man you guys should read more before just throwing out this type of info. I have read that a bunch of people have had great success resetting their phones on stock ICS with no problems and phones run great. But all the guys in the know say do not do it at all stock, rooted etc etc...they actually recommend downgrading first. Samsung ICS has an issue...at least thats what people who know way more than any of us say. They also say you can do it once, twice whatever but that 3rd time or 4th could be the brick. Just know beforehand that on a fully stock ICS you can brick by doing resets flashes full wipes etc. The rest is up to you but I would feel bad if I said just reset it man no worries and you end up getting a brick because of what I just threw out there.

And for the record I have read a ton on this because I was having serious battery issues. I have not seen it anywhere state that you are more at risk for bricking if you have a rooted phone running stock ICS.

I rooted mine and installed Titanium and froze a bunch of apps that were hogging up the juice on my battery. Kept track of the phone going into deep sleep with CPU Stats and tried to figure out what was causing the issue of no-sleep using Better Battery Stats. I can also say this has been a total pain to have to worry about it but I didn't want to just reset my phone for the fear of bricking. I can now say with all the little tweaks I have done I am getting good battery life without resetting.
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Old June 9th, 2012, 02:27 AM   #42 (permalink)
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If you haven't previously rooted your Note, doing a factory reset may solve your post-ICS problems. It's reported that if your Note has been rooted then doing a reset is a risky choice and may brick your phone.

Ian
I'm a bit uncertain here.

I've seen several reports, as stated by jbeef86, that a factory reset may (just may) brick the phone, rooted or not (mine isn't).
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Old June 9th, 2012, 06:26 AM   #43 (permalink)
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If you are thinking about wiping your phone then I recomend it if you havent tampered with your phone.

On my first charge since doing it, its been on for 17 hours and I have 47% left.

The battery seems to go down really slowly, very happy now.
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Old June 9th, 2012, 07:03 AM   #44 (permalink)
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Honestly man you guys should read more before just throwing out this type of info. I have read that a bunch of people have had great success resetting their phones on stock ICS with no problems and phones run great. But all the guys in the know say do not do it at all stock, rooted etc etc...they actually recommend downgrading first. Samsung ICS has an issue...at least thats what people who know way more than any of us say. They also say you can do it once, twice whatever but that 3rd time or 4th could be the brick. Just know beforehand that on a fully stock ICS you can brick by doing resets flashes full wipes etc. The rest is up to you but I would feel bad if I said just reset it man no worries and you end up getting a brick because of what I just threw out there.

And for the record I have read a ton on this because I was having serious battery issues. I have not seen it anywhere state that you are more at risk for bricking if you have a rooted phone running stock ICS.

I rooted mine and installed Titanium and froze a bunch of apps that were hogging up the juice on my battery. Kept track of the phone going into deep sleep with CPU Stats and tried to figure out what was causing the issue of no-sleep using Better Battery Stats. I can also say this has been a total pain to have to worry about it but I didn't want to just reset my phone for the fear of bricking. I can now say with all the little tweaks I have done I am getting good battery life without resetting.
Oh well, suit yourself.

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Old June 9th, 2012, 07:05 AM   #45 (permalink)
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If you are thinking about wiping your phone then I recomend it if you havent tampered with your phone.

On my first charge since doing it, its been on for 17 hours and I have 47% left.

The battery seems to go down really slowly, very happy now.
That's great to hear :-)

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Old June 9th, 2012, 07:10 AM   #46 (permalink)
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I'm a bit uncertain here.

I've seen several reports, as stated by jbeef86, that a factory reset may (just may) brick the phone, rooted or not (mine isn't).
You will just have to bite the bullet. Your Note is under warranty, so the worst that can happen is that you will be inconvenienced for a few days. I haven't yet seen a post here from someone who had bricked their un-rooted Note. Not sure I have seen a post from anyone who had bricked their Note, full stop.

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Old June 9th, 2012, 07:25 AM   #47 (permalink)
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I just dont see how you would brick it if you havent tampered with it.

The function is there to use or it would be hidden.

If you have tampered with it then the risk is obvious because you yourself have messed with something you shouldnt have.

If you havent then relax, back everything up in Kies then restore.

Ps. Anyone that has done it, did you lose your auto spell and if so how do you switch it back on?
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Old June 9th, 2012, 07:25 AM   #48 (permalink)
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When I first got the phone the battery would drain quickly, I was advised to switch of social hub and since then it improved loads.

I have also upgraded and installed ICS and noticed a big drop, for some reason I can't switch of background data which is also another drain but in all the excitement of getting ICS I completely forgot about Social Hub.

Switched it off yesterday and Im.up to 45% left with 11 hours use.

My advice is to kill social Hub and see how you get on, previous to this I was struggling to.get 8 hours out of ICS although I have now drained the battery 3 times so it could be that.

can you list exactly what settings you have changed and what apps you have disabled via applications,

also since i am new to the note can you list some of the 'must have' apps?

thanks in advance
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Old June 9th, 2012, 07:31 AM   #49 (permalink)
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I disabled anything I dont use, you may be different, I got rid of all news, finance, Google +, social hub, e mail, voice activation etc as none of those interest me and I use GMail.

Settings wise my background data is on and location is is off.
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Old June 9th, 2012, 10:50 AM   #50 (permalink)
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I still don't really know what is meant by 'background data'. Can you clarify?

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