yashsingh1/xdaforums huggingface dataset:
[Nokia Lumia 800] bhejafry:
Flight Mode: Off

3G: On

Wifi: On

Bluetooth: Off

Email Accounts/sync: Exchange, MSN, Gmail: All 3 Push sync

Live Tiles (that update): BBC, IMDB

Background Apps: WhatsApp, gMaps

Battery Life (Hours Approx) Day time: ~ 24

Battery Life (Hours Approx) Sleeping: ~ 16

Version: 12070

Update Method: cab

Lumia, after update, lasts me for around 38 - 42 hours for complete discharge :D . I use it frequently for web (about 2 hours on train), Kindle (half an hour), about 5-6 sms, about 15 minutes of phone calls, about half an hour of games.

This is almost twice as compared to the SGS II which I had before :cool:.
[Nokia Lumia 800] martoto:
Yesterday I received the last 12070 update. And did a very simple test. Before went to bed unplugged both my Nokia Lumia 800 and Samsung Omnia 7 on 100% charge. Left them for the night with absolutely same settings (WiFi and 3G on, 3 push emails, one and the same network - O2 with full coverage, same live-tile apps etc.).

At the morning, 7 hours later, the result was:

- Samsung - 87% battery left;

- Nokia - 50% battery left;

So what more to say, after more than 4 months and several patches Nokia is still unable to address fundamental issue with a product, which should be their future. Lumia is still unusable to me and this is my first and most probably last Nokia. For comparison Samsung makes WP only as backup and pushing its android line up instead. And my Omnia 7 works perfectly from day one, with the first version of WP7, more than a year ago.

Looks like the burning Nokia platform will fire up the Microsoft's one as well. What a pity, as otherwise WP7 is a very good product on itself.
[Nokia Lumia 800] dada051:
It may just need to be recalibrate ? My Lumia 800 is at 21%, I unplugged it at 8:00am yesterday. My Omnia was shutdown at 10:00pm (14 hours of life)
[Nokia Lumia 800] zolhof:
I did the exactly same thing! Went to bed on full charge and after 6~7 hours it had 48% of battery left! That's unusable IMO. Any hints?

Flight Mode: Off

3G: On

Wifi: On

Bluetooth: Off

Email Accounts/sync: 1 Push, 30min

Live Tiles (that update): 2 contacts and 1 people

Background Apps: none

Version: 12070

Update Method: Official update

I'm charging it right now and gonna do a full test today.
[Nokia Lumia 800] paglabhai:
honestly saying im getting the best battery life after the update ...charged it last night and now battery still 56% remaining with 3G, WiFi on, 3 push email and made few calls...im impressed
[Nokia Lumia 800] zolhof:
I bought mine a couple of days ago and it came with a branded 12070 pre-installed. After reading many ppl advising to do a hard reset, I decided to roll back to 11501 - unbranded - and wait for the official 12070 release here in Brasil. I'll keep an eye to how 11501 battery behaves on my phone.
[Nokia Lumia 800] ashu86sharma:
battery life

Hmm, well I purchased my phone on Mar 23(Its Dec 2011 make). So far battery life seems good. Being a light user, (location off, data off, no push mail - basically m using phone as a dumb phone; but when i surf internet only then i switch on 3g) I do normally 2 hrs surfing, similar 2 hrs or more of phone calls, and my battery lasts around 39 hours(with 5 % remaining).
[Nokia Lumia 800] rohitsingh05:
Hi All.

Long time lurker, this is my first post. :)

Anyways back to the point. Bought my lumia 800 way back in Dec. Prebooking, first day possession on 16th Dec, in India. And frankly I love my phone.

Updated to 12070 update on 6th March, via Zune. And although I wasnt really facing the discussed battery issues, the battery life has only improved. Here's the status of my phone:

Flight Mode: Off

Wifi: On for about 2-3 hours

3G: Always off

Bluetooth: Off

E-mails: 2 gmail accounts on hourly schedule, One outlook account on 'push as they come' setting

Live Tiles: People

Background apps: Whatsapp

Other usage: Gaming for about 2 hours, Music for about 1 hour

This is my general usage and my phone easily gives me more than 30 hours on an average.

P.S: At the moment its showing:

Rem Battery: 8%

Time rem: 3 hours

Time since last charge: 1 day 17 hours :D
[Nokia Lumia 800] jeffiphone:
How do you do the rollback?
[Nokia Lumia 800] zolhof:
I followed this guide http://community.giffgaff.com/t5/Le...okia-Lumia-800-Giffgaffers-guide/td-p/2891451
[Nokia Lumia 800] Maszt:
Flight Mode: Off

Wifi: Off

3G: Always On

Bluetooth: Off

E-mails: 2 gmail accounts - 30min and 1hour sync.

Live Tiles: Weather

Background apps: Weather

Other usage: Music for about 1-2hours, web - 1h, about 30min calls, 3 sms, sometimes games for an hour

Version: 12070

Update Method: cab

I can get about 16-24 hours (24 is with standby by night). I think it should be better. Is it because of 3G? I have never get something like 30 hours with this usage...
[Nokia Lumia 800] TechManiac89:
My idle time is at least triple after the update in 3G mode. :)
[Nokia Lumia 800] zolhof:
Some more numbers after testing 11501 unbranded:

- 21 hours of battery life during a full day, heavy usage (music, web, SMS, email, camera and gaming) with 3G on

- 84% left after I went to bed, idle for 10 hours (3G on, 1 push email)

- 64% left after 2,5 hours of nonstop usage

Well, I'm pretty satisfied with these numbers! Way better than I was getting with branded 12070. I'll post more numbers after I receive the official update.
[Nokia Lumia 800] :
Im getting worse Battery after update. With 11501 i was getting 1 day 10-15 Tours om film charge, with 1207 om getting 16-18 tops in film chatte. Can barely last a day with moderate use..

Sent from my Lumia 800 using Board Express
[Nokia Lumia 800] :
With moderate use*

Sent from my Lumia 800 using Board Express
[Nokia Lumia 800] biggary:
Hello. New Lumia User....

Owned the lumia since yesterday afternoon, and updated to .12070

Charged overnight and unplugged about 5.30am, its been on 12 hours and battery still 53% after mid to high usage (downloading apps, music, calls and over 50 texts)

As a ex-owner of SGS2 and HTC sensation, this is a great amount of battery left, the sensation or Galaxy S2 would be on 30% or less.

Glad I made the jump from Android to WP7
[Nokia Lumia 800] igoramadas:
Hi guys,

I've been playing around with my Lumia 800 on 11501 and 12070 for about 2 weeks, with different settings regarding WiFi, 2G, 3G...

12070 definitely gives me better battery life *if* I leave my phone on 2G only. Today I unplugged it at 6AM, full charge. It's 5:30PM now and I've been listening to music for at least 3 hours, sent some messages on WhatsApp, emails every hour and internet browsing for about 40 minutes, and still have 70% left. I have only 1 Exchange account syncing every hour, and also Facebook and LinkedIn.

I am always on WiFi thou (relying on my 2G conn when I am on the train to/from work). Yesterday I did the same thing, having similar results and at 11PM yesterday I still had around 35% battery (an extra 2 hours music and another hour browsing, plus emails).

I have very good 2G and 3G signals at home and at work, network is O2 Germany in Berlin and apparently Fast Dormancy is not supported, so this could be a cause of much less battery juice on 3G.

11501 would give me less juice on both 2G and 3G, but the difference isn't soooo much on 3G: I would even say it's around the same.

So I think Nokia can improve this even further. 3G will always use more battery but on Lumia 800 the difference between 2G and 3G is insane.

Some advices:

* If you have WiFi available most of the time, leave it on and turn 3G off.

* If you don't have WiFi and you're not streaming music/videos/uploading pictures, 2G might be enough and will give you much better battery life than 3G.

* If you don't have good 3G signal and leave it on, battery will be definitely flat in less than one day.

* Leaving bluetooth on all the time will give you 1 to 2 hours less battery each day, no matter which firmware you use.

* Leaving Location services won't affect battery life if you don't use any apps / features that require geo location. But as soon as you open Nokia Drive or the Maps app, it will start using GPS and will keep fetching GPS data for a few minutes after you close the app.

* The built in Diagnostics tool is clueless regarding battery levels. Each time I charge my phone it will display different values for Full Charge Capacity.

On a side note: Bass is SO much better on 12070!!!!!!!
[Nokia Lumia 800] cuni:
So, I decided to post my experience here to see if it helps someone.

I bought my phone de-branded, it came with 11501. Battery life was pretty bad, i got around 10 hours with:

Flight Mode: Off

Wifi: On

3G: Always On

Bluetooth: Off

E-mails: 1 hotmail - Push

Live Tiles: Weather, People, Me, Foursquare, Whatsapp

Background apps: Weather

Other usage: Some calls, messaging, and music

It should be pointed out that this is exaggerated by the fact that my workplace has no wi-fi and very poor reception which exacerbates the problem, but even on weekends battery life was poor. So I decided to cab update the phone to 12070. After doing it, sucessfully, nothing seemed to changed. But then I followed some advice and hard rebooted it and everything changed. On a weekend, after 7 hours of same said usage, My phone was still at 77%, which is awesome, I'm guessing with battery saver kicking in at 20% it would last more than a day. In work days, it's not as good (my guess is the phone would die in 16 hours or so), but I cannot blame it on the phone as most people who work with me suffer the same problems.

So, I cannot stress this enough, TRY A HARD RESET AFTER UPDATING IF NOTHING CHANGES. It will erase all content but it will not roll back a version.

Two questions though:

- Even if wi-fi is not being used, does it consume battery if turned on?

- I noticed that the release will be oficially released in my country in a few weeks (everyone can check the schedule at nokia's website - I could not post the link, just google Nokia Europe Lumia 800 Update). When said time comes, would there be any benefits in rolling back to 11501 (I did a backup before upgrading, I'll be able to do this) and installing the update through official channels? Is there a chance the update will be fine tuned for my specific model number (as the schedule seems to suggest)?
[Nokia Lumia 800] Inopia:
For those who are interested about 2G/3G and fast dormancy, there are several things which influence power consumption.

First of all, there are three power states for 3G being idle, fach, and dch. In idle mode your phone consumes next to nothing, while fach and dch correspond to medium and high energy modes respectively. In fach (free access channel) your phone has less bandwidth, while in dch (direct channel) you get more speed. Now, there's overhead associated with going into dch, which is called the 'ramp up' time, and can be as much as two seconds. You can see this considerable delay when you start browsing for example. Because of this delay and the cost associated with it, once your phone is in dch mode it will be reluctant to go back into low-power mode immediately after a data transfer. It will stay in high power mode for typically 6-12 seconds before going down to either fach or idle. This behavior cuts down on the number of ramp-ups and generally saves a lot of energy when you're browsing the internet or streaming data. Unfortunately, it works not so good for periodically checking your email. If you check your email every 1 minutes for example, and your modem stays in dch for 12 seconds after the last transfer, you have your phone in this high power state for ~20% of the time.

So why am I telling you all this? Well, it turns out that the policy that governs these state transitions (when and why the device switches between power states) is carrier dependent. This means that on carrier A your phone might go back from dch to idle after 12 seconds of inactivity, while on carrier B your phone goes dch->fach->idle which each transition happening after only six. The second policy is better for checking your email, but may waste energy with Youtube streaming for example (think buffering).

Fast dormancy is basically a feature that lets an application tell the modem to go directly to idle from a higher power state because it will not transmit any more data. While this is a nice feature on paper, there are many applications running concurrently without coordination. It should work well for periodically checking your email though, provided your OS does the necessary scheduling.

You guys are getting wildly different power consumption rates from 3G because of differences in usage patterns and carrier configurations.
[Nokia Lumia 800] :
I rarely use 3G, only wifi. And my Battery drain is still off the charts. Is hard reset the 3 button method?

Sent from my Lumia 800 using Board Express
[Nokia Lumia 800] cuni:
Yes, you can do the three button method (which is what I did) or you can go to settings > about > more info > restore factory settings, which I think is the same thing (cannot say for sure, though, that this won't cause you to roll back to a previous version).
[Nokia Lumia 800] zolhof:
Updated to 12070 unbranded and did the "idle test" again.. after 10 hours, 79% left (3G on, 1 sync email). That's 5% of loss compared to 11501. The 1st test was done at my girlfriend's house (much better signal then here), dunno if a lower signal sucks more juice.
[Nokia Lumia 800] crysu:
For me it is like this:

Flight Mode: Off

3G: On

Wifi: Varies

Bluetooth: Off

Email Accounts/sync: none

Games: around 1 hour per day

Version: 12070

Update Method: CAB

Remaining battery life: 58%

Estimated time remaining: 23 hours

Time since last charge: 1 day 18 hours
[Nokia Lumia 800] CervezaPorFavor:
I wonder if email sync is the main culprit here. Did you achieve this result with Battery Saver turned on or off?
[Nokia Lumia 800] zolhof:
Well, things got better here. 1 day and 7 hours since last charge and still 23% left (3G on, 1 sync email, web browsing, many sms, 40min phone call). Estimated time remaining 10 hours
[Nokia Lumia 800] crysu:
Yes... Battery Saver is on... I'm not using email sync since I don't needed (and to be honest I don't want).
[Nokia Lumia 800] rowly94:
Hi, long time lurker, decided to post for once.

I just got a Lumia 800, and the battery life is shocking. The 12070 update failed the first time as the PC crashed; the second time went without a hitch, yet the battery life rarely gets beyond 5 hours (in contradiction to what the phone predicts) on very limited usage.

Flight Mode: Off

3G: Off

Wifi: On

Bluetooth: Off

Email Accounts/sync: none

Games: around 30 mins

Live tiles: Weather view

Version: 12070

Update Method: Zune

Remaining battery life: 61%

Estimated time remaining: 23 hours

Time since last charge: 3 hours

Also, the phone randomly displays "no service" despite there being ample reception at my location, and I've tried different sims and networks to no avail. I think I'm going to send this back to Nokia, I just can't be doing with such appalling performance.
[Nokia Lumia 800] manpete:
You really need to find some friends to occasionally talk to... <grin>
[Nokia Lumia 800] _z_:
How do i run the diagnostic test?

Sent from my Lumia 800 using Board Express
[Nokia Lumia 800] kharma45:
Before you send it back, have you tried a hard reset?
[Nokia Lumia 800] Boss_Cuco:
Dial ##634#
[Nokia Lumia 800] rowly94:
Yeah. Knowing that I'd probably have to send it back, I thought I might as well - firstly I tried restoring to before the update then re-updating, then I did a hard reset and updated, both to no avail. :(

Some praise for Nokia here though - I arranged a warranty repair yesterday afternoon, UPS collected the phone this morning and it's already been checked in at Nokia's Thetford repair centre this afternoon. The phone may not be faultless, but so far their service seems to be. :)
[Nokia Lumia 800] cuni:
So, the time has come. The official Nokia Lumia 800 12070 update is now available to my country and model, but I haven't received any notifications, seeing as I forced the update last week. My question is, should I roll back to the backup I made at the time (with version 11501) and install the official update? Or there's really no difference between what I installed and the official one?
[Nokia Lumia 800] asadkhanduhh:
back to only getting 12-15hrs of battery life with quite little usage.
[Nokia Lumia 800] b16b:
I have only 20% more battery than before.. From 10h hard use now keep 12h

I have an other problem after update and I want to know if I'm the only one

when go to dial pad to dial a number always the first number is laggy coming after 1sec

Anyone else?

Ps. Some times have the same problem on first letter when texting..
[Nokia Lumia 800] chaihg:
Yes I know what this is. I have this problem too
[Nokia Lumia 800] zolhof:
Yeah, that's something I'd like to know too.. the "country variant" FW on NaviFirm is the same FW Nokia is rolling on Zune?
[Nokia Lumia 800] granzil:
hi i wanna asking about FW from zune and from cab diffrent to phone? and i want ask how to downgrade my frimware 102070 to 11501?.. i want update from zune... because my friend said.. using cab method.. that lumia 800 is harm rather than from zune
[Nokia Lumia 800] cuni:
I think you mean to say what zolhof and I are asking, which is "Is the official Zune update for a specific model better than the cab update?".

My phone is still draining slowly but now it seems to have some trouble prediciting batttery time left (it says 19 hours after disconnecting form charger but lasts much more). So I will try rolling back to 11501, installing 12070 through official means and I'll get back to you! (I won't be able to do this until Sunday since I'm not home and not using my main computer).
[Nokia Lumia 800] granzil:
yes my friend say using cab more warm/heat.. than officall..

but how to roll back to 11501?
[Nokia Lumia 800] cuni:
Well, that is tricky. When I did the cab update, I used the "B" option, which creates a backup before installing the update (this backup is also recognized by the Zune software). If you used the "S" option, you just installed the update without any backup, so it kinda means you have no way of rolling back, as far as I know. Any one know another way of rolling back?
[Nokia Lumia 800] evripidis:
Ι have updated my phone using Zune. My battery perfomance remained the same as with the previous version of OS. This afternoon, in flight mode, it consumed 6% in 3 hours!

With which key combination can I make a hard reset?
[Nokia Lumia 800] cuni:
You could just go to settings>about>restore facotry settings (this won't roll back the firmware). You can also press volume down+power+camera, and when the phone restarts, release power while pressing the other two.
[Nokia Lumia 800] evripidis:
Thanks a lot! Firstly I think to do the soft reset from the settings and if I have problems and after this, I will do the hard reset.
[Nokia Lumia 800] cuni:
APACI

You're most welcome! I think, though, that there's a difference between the two methods!
[Nokia Lumia 800] evripidis:
I think the same too! :p

But I want to test the easy way firstly and in case of failure to go to the plan B... :D
[Nokia Lumia 800] Boss_Cuco:
I think you should try first the "Hard Reset" which is done by pressing the power button for 10 seconds.

If you go to settings>about>restore factory settings you'll loose all your data so you might want to try first the "Hard Reset".

For more info and pics:

http://www.mobile-repair.org/2012/03/how-to-do-soft-reset-hard-reset-nokia.html
[Nokia Lumia 800] evripidis:
Thanks a lot! :)

If this doesn't work, should I try software or hardware reser first?
[Nokia Lumia 800] zolhof:
I'm convinced that signal strenght is a big part on battery drain. Just did another "idle test" with 12070 unbranded at my girlfriend's house (awesome reception here), and after 10 hours my Lumia has fantastic 90% of battery left! That's a 11% gain compared to what I get at home.
[Nokia Lumia 800] ctiantock:
Lumia died with 59% battery

I updated to 12070. The next day I was playing some games and listening some music with my earphones. I quit the game and checked the battery its still 59% and about 20 hours left.Then about 5 minutes later the music stopped, and when i checked my phone its dead and i can't turn it on. So I went home and plugged it to charge, it turned on and shows 59% again. I don't really know whats happening can somebody help?

Battery diagnostic seems normal

<100ma when idle
[Nokia Lumia 800] nok_fusion:
i think u most do a calibration,charge the phone until 100%

use it normally until the phone turn off

make a full charge to 100%

;)
[Nokia Lumia 800] Skew01:
I updated too. Battery working a shade better than.
[Nokia Lumia 800] crnkoj:
hey guys, which app do you use to check the battery drain? my gf has a lumia 800 and before this update could get 4 days (unbelievable lol) with moderate use (almost no mobile data though, mostly sms and some calls), now after the update it just craps out after less than 2 days =/ anyone got a suggestion as what to do? reset the phone or maybe flash with navifirm/flasher?
[Nokia Lumia 800] omeryounos:
Try factory reset then followed by a complete charge discharge cycle.
[Nokia Lumia 800] cuni:
I would do the discherge cycle before the factory reset, as you will lose all data doing the reset.

I recently rolled back my phone to 11501 (I had updated it using the cab method but then the official update became available for my country) and updated it through Zune. The first day it didn't seem to improve, so I let it discharge completely and then charged to 100% again. Now it seems to be much better! If at the end of the day I notice that performance hasn't significantly improved I will try a hard reset as well.
[Nokia Lumia 800] crnkoj:
ah i see, ill suggest that,

so anyways i see people writing how much drain they have in idle, which app is being used for that ?
[Nokia Lumia 800] Coder247:
My Settings:

3G on if need to check/send email then switch it off straight after

GPS off

no heavy use, make an recieve calls as an when needed, same with texts, dont play games on or use radio/mp3 player, dont watch vid clips on it but still only get around 10 hours, after updating i charged and did a full discharge but still no change after the 12070 update, im contemplating gettin the phone changed for a new one incase of battery fault and see how i get on
[Eee Pad Transformer General] sniper8752:
is it possible when rooting your tablet, just like your phone, you can brick it? i thought i heard somewhere that tablets are different?....
[Eee Pad Transformer General] baseballfanz:
Anything is possible. Just read read read and follow directions.

Also check and see what SBK version you have. Those with SBK v1 have ability to use nvflash

Just in case something doors go wrong
[Eee Pad Transformer General] feisty_noodle:
Anything is possible when you are doing unauthorized things to your device.

Many things are possible when you are doing *authorized* things to your device.

The difference is that then you are covered by manufacturer warranty.

Rule of thumb: if you aren't comfortable with unexpected possibilities --- don't do it!
[LG Optimus Black] Spevky:
Who is a developer in this forum? Who develops roms and stuff here?
[LG Optimus Black] N00BY0815:
Look into dev section mate ;) You ll find guys like Huexxx, knzo (although he told to stop deving), dxdiag32, gabwerkz,... Just have a look in there ;)

http://xdaforums.com/forumdisplay.php?f=1190
[General Questions and Answers] j0rd4nkzf:
Moved to: http://xdaforums.com/showthread.php?p=23423784
[Samsung Galaxy Fit GT 5670] Mello^:
Can anyone give me or tell me a step by step procedure on how to edit an apk file ?

What I want to know is the requirements, what things I have to install on my computer and steps regarding on editing the apk. Specifically, lists of softwares I need and what to install on my pc. That's all I am asking..

Thank you in advance .
[Samsung Galaxy Fit GT 5670] Aspire:
check this

http://xdaforums.com/showthread.php?t=1466100