yashsingh1/xdaforums huggingface dataset:
[HD2 Android Q&A, Help & Troubleshooting and Genera] CRXed:
READ this topic, the answer is in it! You need read/write permission under root.
[HD2 Android Q&A, Help & Troubleshooting and Genera] CRXed:
My HD2:

This morning, 1% was something like 3.5V

I charged it from 0 to 100% in 3 hours on de wallcharger while the phone was off.

When the light went to green I unplugged it.

After booting in WM it showed me 100%

Then I booted Android (from SD) and it now shows 98% @ 4097mV

I'm gonna wipe that batterystat file and report back.

edit

I plugged in the phone again, to charge it to 100%

100% was 4196mV

I deleted the batterystat.bin file with ES Explorer and unplugged the charger.

I then made it discharge (3G, Bluetooth, GPS on with Maps, Music playing on repeat) untill the phone shut itself down

This was @ 2% and 3118mV.

I didn't see the "Shutting down" message as would happen normally, but the phone just went dead.

It would not reboot into WM, too little power for that.

Now I am going to charge it again, while the phone is off.

edit2

I charged to a 100% again and it again is at 4196mV

Now I am going to take it off the charger and see how it holds up with regular use.

Before, I could barely get through the day, I hope that will be improved now.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Kazz88:
Batterystats.bin

Hi, i want to know would it work if i copied the file Batterystats.bin after i have configured it, and paste it in to the system after a new flash, would this work?(batt voltage show 4.25, after a new flash its usually 4.191 ) I use the same method for the g-sensor file AK8973prm.txt when i flash a new build to recalibrate the g-sensor and it works.
[HD2 Android Q&A, Help & Troubleshooting and Genera] CRXed:
This was already answered in this topic and NO it will not work.

It is kernel dependant and a new flash will probably have a new kernel as well, so you would have to recalibrate.
[HD2 Android Q&A, Help & Troubleshooting and Genera] CRXed:
Well after a few days of testing.....it did NOT improve my battery life at all !!! :confused::(
[HD2 Android Q&A, Help & Troubleshooting and Genera] coolfire:
I also get 4196mV on all 3 of my original batteries - 2 standard & 1 extended. How long does your phone last on each charge? mine is about 10-12 hours on the standard cells in Droid (in WinMo, about 20 hours, I am a relatively heavy user).
[HD2 Android Q&A, Help & Troubleshooting and Genera] nzxtneo:
I am going with these instructions.
[HD2 Android Q&A, Help & Troubleshooting and Genera] GoCkillaz:
I'm doing this as well.
[HD2 Android Q&A, Help & Troubleshooting and Genera] MoreYummy:
Where do you do this?

Can you do it with root explorer?
[HD2 Android Q&A, Help & Troubleshooting and Genera] lms1407:
in Terminal, install from market if it's not installed.

Thank's guys, verry helpfull thread.

I see some of you don't have the issue that the phone is not actualy charging 100% when power off!?!
[HD2 Android Q&A, Help & Troubleshooting and Genera] MoreYummy:
ok. didnt realize i have it. thx

And what is your near 0% mv value at? mine is at 3700mV, it seems so high.
[HD2 Android Q&A, Help & Troubleshooting and Genera] jonboyuk:
Uh oh....I've followed this thread and somehow after killing my battery, then recharging it, the capacity is screwed. It charged from 0% -> 100% in Android in about 5 mins.....

What could I have possible done wrong? :-/
[HD2 Android Q&A, Help & Troubleshooting and Genera] jonboyuk:
No worries, fixed it. I think the guide needs a bit more clarification for NAND users, so I have rewritten it.

1. Charge the phone fully while it is on.

2. Turn it off and then unplug it.

3. Remove the battery for 2 minute then replace and switch on again.

4. Plug the mains in during boot at any time.

5. Use Droid Explorer (install from internet, plug in USB and make sure USB Debug is enabled).

6. Go to /data/system/ then delete batterystats.bin

7. Kill that battery! GPS/Movies/Wifi/BT etc....

8. When dead, turn on a few times until it just won't turn on any more to ensure full depletion.

9. Stick the mains supply back in and wait for a minute or two for some residual charge.

10. Turn the phone on and allow the charging icon to go green.

When you reach step 10, you will notice that the batterystats file is recalibrating and the charge % will reach 99% after about 10 minutes. This is normal because it won't hit 100% until it is fully charged.

Since I've done this, I still have 62% battery remaining and it's been on for just over 18 hours, so I expect to just get around 2 full days of charge. This is with syncing, location etc on. More if I was to disable those services.
[HD2 Android Q&A, Help & Troubleshooting and Genera] wd5gnr:
I am having the same problem. Shows 100% charge right away, apparently quits charging, and then when you unplug it you get minutes of battery before it dies.

I can't remove the batteries (pad, not a phone). And I'm not clear what you mean about #4. Do you mean "unplug" maybe? Or do you mean you unplugged it already? Not sure if that matters.
[HD2 Android Q&A, Help & Troubleshooting and Genera] pretzdothack:
I'm confused. My phone registers that it's fully charged at 4.184v and it stops accepting charge. How do I charge it fully to 100% while it's on if it stops accepting charge?

Also, step 4 seems confusing. Can you clarify?
[HD2 Android Q&A, Help & Troubleshooting and Genera] tobiascrystal:
My girlfriend and I are having exactly the same problem mine doesn't go above the same voltage as yours either. I actually just ordered an external charger to see if I can get more than a few hours off a charge. I watched it charge yesterday and it stuck at 89% for like 10 min then jumped straight to 100%. It is really killing our batteries not being able to charge with the phone off.
[HD2 Android Q&A, Help & Troubleshooting and Genera] VanDerWaals:
My guess is you need to turn the phone off and let it charge fully, reopen android again and see whether the voltage value has increase, from what I gathered from the instructions is android will automatically assume whatever charge on first boot = max battery charge, and it gets confused when suddenly the charge is higher than what it registered as max battery charge, hence stop accepting charges, mostly related to android, hence, if you charge it when its off or in WM, the charge will reach its maximum capacity, its mostly a hit and run to get the highest volt anyway, most probably you have to do is reduce the battery consumption when booting into android so that android will register the highest voltage and you delete the batterystats.bin for it to recallibrate the maximum voltage.

Correct me if i am wrong. I am just doing this today anyway, haven't confirm whether mine is working or not, I got just 14 hours previously, hope this will improve my battery life.
[HD2 Android Q&A, Help & Troubleshooting and Genera] tobiascrystal:
There in your reply lies our problem... due to MAGLDR we can not charge our phones while they are off in order to get the battery to its max capable voltage and since android has got false info written into the batterystats.bin we can never achieve full charge without an external charge. Please, correct me if I'm wrong so I can get more than a few hours out of my phone with a less than a 3 month old battery!
[HD2 Android Q&A, Help & Troubleshooting and Genera] StephanV:
Of course you can charge your phone while it's off, you're just gonna have to remove and reinsert the battery before booting again. The charging works fine though.
[HD2 Android Q&A, Help & Troubleshooting and Genera] tobiascrystal:
Hmmm, I'll try again tonight to see if I get anywhere. The last few times I actually lost voltage trying that
[HD2 Android Q&A, Help & Troubleshooting and Genera] pretzdothack:
I suppose I should clarify. I get more than a "few hours" off my phone. I've gotten up to 19 actually, and I'm a very heavy user. Granted, some of those were sleeping hours. lol

Anyways, my phone charges up to 4.187 and never any higher. I tried wiping the battery stats using root explorer and then immediately turning the phone off. Charged for a while more with the phone off but the voltage is set to 4.187 as opposed to 4.184.

I'm confused. If we wipe the battery stats while in the phone won't it just register whatever the current charge would be as 100%? And if that's the case since our phones do not receive any more charge past said number...

So... confusing.
[HD2 Android Q&A, Help & Troubleshooting and Genera] shawn1968:
Here is one for you. What about extended batteries. Does the rule apply to them too??

'Cause right now, I use [JAN 30]Copes AOSP SD HD2 GB232/CM7 A2SD [kernel:warrenb's hastarin853+] that says that it supports ext.batteries, yet I have problems with it. It lasts as a normal battery and seems to be draining twice as fast.

Can I calibrate it as a normal battery?????
[HD2 Android Q&A, Help & Troubleshooting and Genera] bates_1974:
I think as its because your stats file reads for a normal battery, try deleting the file, draining fully, pull battery, charge off for a min or two, then pull battery and charger, reboot and put the charger back in and wait for green light whilst on, if that doesn't work could be the kernel not reporting correct stats, anything in the kernel thread about issues?
[HD2 Android Q&A, Help & Troubleshooting and Genera] pretzdothack:
okay, so I have a few questions that I'm confused about.

First, im running the nand Cyanogenmod 2.4.

I can't get my battery calibrated at all for one thing. The best I've gotten it is that it charges up to 4.187 and it won't charge anymore. Well, the number goes up but it doesn't take any charge. My battery widget says that's about 84%. It dies somewhere around 3.4xx.

When it "dies" if I try to turn it off, then back on it just boots up normally. Then when it gets into Android it's dead. If the battery was actually dead wouldn't it not make it all the way to the boot screen? I can leave it on magldr for a good while and nothing happens.

I get great battery draw with this ROM and everything else for the most a part is fine. I just can't get it calibrated. I've followed some of the guides in here and used root explorer to wipe the stats but nothing ever works properly.

What should I do?
[HD2 Android Q&A, Help & Troubleshooting and Genera] hardstuffmuc:
I don't understand this at all!

Today my HD2, running Tytungs Nand Nexus Gingerbread 2.1 died at batterylevel 32%, it just died with the battery apparently empty.

So I tried the guide described in here, but under File Explorer there is no data/system/batterystats.bin listed, and when I type in Terminal Emulator the commands su (enter) rm data/system/batterystats.bin i get error message that there is no such file

I am somewhat confused :confused:

Any help would be appreciated!

Greetings
[HD2 Android Q&A, Help & Troubleshooting and Genera] StephanV:
^do you get any kind of message after having typed 'su'? If you do, you're not rooted. If not, you're probably missing busybox. Install & use titanium backup to fix this.
[HD2 Android Q&A, Help & Troubleshooting and Genera] hardstuffmuc:
Thanx,

just run busybox in Titanium Backup again to be sure, and found the file in ES File Explorer after allowing ES root rights, and deleted it....now it is depleting the battery completely and see how it goes from there!

;-)
[HD2 Android Q&A, Help & Troubleshooting and Genera] shawn1968:
That seems logical, but how can I drain it while on Android, when while showing 1% of remaining current it actually has more than 50% !!!!!!
[HD2 Android Q&A, Help & Troubleshooting and Genera] StephanV:
I've read that, ironically, official extended batteries aren't supported, only the unofficial ones. Could have changed by now though..
[HD2 Android Q&A, Help & Troubleshooting and Genera] aortega:
I made all the process as you wrote in this forum, but I can't get my phone on again, the only thing is doing is: trying to boot, but in the screen just passing MAGLDR turns off and then retry to get on, before doing this procedure I was having the same problem with my phone I can't turn it off and charg it, because it wont turn on, what I have to do is pull the battery out and repalce it with no charger plugged in in order to turn it on, if I leave the charger connected, is doing nothing, any idea about this??
[HD2 Android Q&A, Help & Troubleshooting and Genera] DaraM:
I am not sure if I want to mess around with the battery stat and voltage. It could cause more harm than help. I like to think that if there is a way to go around with tech improvement, should those chefs who cooking up ROM have figure it out by now...

Personally, I just have to charge my phone as much as I have the time, and get one of those car charger, just in case.

That is my 2 cents.
[HD2 Android Q&A, Help & Troubleshooting and Genera] XMaseX171:
Maybe I am wrong, but I thought if your battery was completely dead, which it should be at this point. It wouldn't even turn on. Have you tried to plug it in when it says retry?
[HD2 Android Q&A, Help & Troubleshooting and Genera] ktreadwell:
Hey guys I've been reading this thread thinkin about doing this but I have one question first. My phone turns on automatically when I plugged it in I cannot charge it with phone off I have tried. Help please. Thanks.

By the way I'm charging it right now and it is at 4191mV @ 85% according to Battery Life Wigget.
[HD2 Android Q&A, Help & Troubleshooting and Genera] aortega:
there's no more to talk about it. Thanks
[HD2 Android Q&A, Help & Troubleshooting and Genera] t1h5ta3:
sorry, as much as id love to help, i lost the hd2 about a month before nand was working, cant realy try any thing out w/o a phone....

only sugestion i have is deleting bat stats from inside clockwork...
[HD2 Android Q&A, Help & Troubleshooting and Genera] E.Bonobox:
i've deleted the batterystat from Androis OS (ES Explorer).

Recharged...still having 4.19V

mmm i will recharge and try to delate from clockwork
[HD2 Android Q&A, Help & Troubleshooting and Genera] mikeauto3:
you save my life, thanks
[HD2 Android Q&A, Help & Troubleshooting and Genera] CrazyTurk42:
same problem here:(
[HD2 Android Q&A, Help & Troubleshooting and Genera] E90 Commie:
I am interested in knowing the values for dead battery. According to BattStats I have approx 4205 mV (4,2 V) with full charge. Then it goes down and indicates approx 3550 mV when it indicates empty battery and turns off.

I have now 24% of battery left@3740 mV according to BattStats. The standby power consumption is normal, 5 mAh according to CurrentWidget.

The question is: what is the lowest voltage the battery should have to hit the correct zero point?

According to the first post it says something about 3200 mV.

I have deleted the battstats.bin with Root Explorer. The ROM is imilka Vision Sense 4.1 and I am using MagLdr 1.13. Radio is 2.15.xx.
[HD2 Android Q&A, Help & Troubleshooting and Genera] lude219:
I like to know the answer to this question, too. My battery's fully charged is 4206mv...and shuts off at 34xxmv.

Another question, being that my phone shuts off in the 34xxmv range, does that mean that my battery is deteriorating and that it's not holding as much charge compare to one that shuts off in the 3200-3300mv area?
[HD2 Android Q&A, Help & Troubleshooting and Genera] CrazyTurk42:
Can't i just replace the batterystats.bin with a better one of someone??

That's would be realy easy
[Desire Android Development] Uqbar:
I do understand that every (base) ROM comes with its very own radio firmware.

And none, AFAIK, is modding it as it's tightly tied to the GSM/CDMA/3G stuff.

But which one is good for a v2.2.1 based ROM working in Europe?

Or, even better, why not adding some lean documentation to each RADIO?
[Desire Android Development] beanbean50:
There isn't really a best 'one size fits all' you have to try them all and see which one is best for you.

I've been flipping from .44 to .48 over the past few weeks, other people say .47 is the best, it really depends on your phone, ROM, service provider and their coverage etc.

It only takes a couple of minutes to flash a different radio so go flashing...!
[Desire Android Development] Uqbar:
I don't think you are right.

I know that some radios come from other markets/areas and have never been pushed in Europe. And vice versa.

Moreover, testing that way takes much more time than the couple of minutes needed to flash them. You need to test handover among BTSs, roaming, Sim Toolkit stuff, incoming and outgoing SMSs and MMSs and so on. And in the meanwhile maybe you also need your phone.

For example, at the moment my radio (32.44.00.32U_5.09.05.30_2) is giving me troubles with my ROM (Froyo 2.2.1 - DeFrost 6.0a) in 3G, while works just fine in 2G.

Is there anyone with some good feedback for Europe/Italy with the various radios?
[Desire Android Development] fllash:
Look, what beanbean50 said about radios is true - there really isn't a 'one-size-fits-all' radio. Some people, depending on their location (and network provider, signal strength and which wireless radios they use frequently), experience better battery life with different radios.

For example, I flashed the new 5.11.05.27 radio the yesterday, and my battery life dropped like a stone, but signal strength was amongst the best I have seen with different radios. To some people, signal strength is more important than battery life. To me, battery life is more important - so this new radio wouldn't do.

The radio you are using (32.44.00.32U_5.09.05.30_2) is the radio of choice for some, but if you are experiencing issues with it, i would recommend you try the 5.11.05.14, which is also recommended by many (including me) for its all round performance.

You were correct in suggesting that it takes longer than a couple of minutes to test a radio, but not everybody uses features such as SIM-Tooklit (me, for example). If SIM-Toolkit didn't work properly in a new radio, but everything else worked fine, it wouldn't matter to me - its all about preference.

The only way to find out the best radio for

you

is to try some different ones. What's the worst that could happen (assuming you follow the correct flashing procedures and minimize your chances of bricking)?

Josh.
[Desire Q&A, Help & Troubleshooting] nicopilami:
Hi all

As my previous message, i'm still running on Defrost distrib on my Desire.

Do you know if there is a way to make the notification led flash at a mail / sms / mms arriving when Desire is charging ?

For the moment, I did not find the option, and when the desire is charging, the led only shows the battery charge status.

bye

Nico
[Windows Phone 7 General] nirpaudyal:
Hi,

This may be a vague question, but it would be interesting to see what people have to say - perhaps with some contributions who have bought any First Gen Win Phone 7.

Given that specifications on paper & hardware mostly the same -

1. Is performance variable between differing handsets

2. What physical features of the handset make it appealing to you? With this regards, whats your ideal Win Mo 7 handset from the current available?

Ta
[Windows Phone 7 General] destiny_await:
Hmmm for me I choose the display over storage space. For my omina7 there's only 8gb version. But the display when put aside with the other model convince me to get it.

Also the build quality of it is quite nice.
[Windows Phone 7 General] mozzy:
It was a breath of fresh air when the Omnia was officially announced, mainley because of its original design and super nice screen.

The hd7 on the other hand just seemed like another rush job from HTC, not really doing anything different from the hd2, evo, desirehd...
[Windows Phone 7 General] ericc191:
Though I have yet to play with a WP7 device in person, the Venue Pro is the phone for me. I had my heart set on the Mozart at first, but a couple things changed my mind.

- I'm sick of HTC cutting corners lately. Every blog/post I've seen about the Venue has been very positive about the device's build quality.

- I don't want a 4.3 inch screen. I've always wanted something a bit smaller. 4.1 is perfect, in my opinion.

- A portrait keyboard is good and bad. Good because one hand texting is very easy. Bad because it kind of ruins any emulation/gaming experience that could take advantage of a landscape keyboard.

- Removable storage. WP7 doesn't allow using the phones as a thumb drive. Problem solved on the Venue. Upgradable storage.

- AMOLED. This is strictly my opinion. I much prefer deeper blacks and more vibrant color over bleeding and washed out color. I loved my Nexus One's display.

- Huge factor here.. the stereo speakers! I've been told they sound great and not nearly as tinny as HTC's devices. Also, the volume can be maxed out without the slightest hint of crackling.

- Camera. I dunno if it'll be any good, but I can't stand the low quality crap HTC continues to use. I'm ready for something new.

* The size kind of worries me.

* The chrome trim looks cheap and is a fingerprint magnet.
[Windows Phone 7 General] davidebanks:
Ive got an omnia 7 had it for 2 weeks and the only thing im dissapointed about is the 8GB storage. having said that i owned a touch diamond 2 for 18 months and lived 4GB so for me its an upgrade anyway, heres wha i think. in short, ( without having actually seen it in the flesh.

Dell Venue Pro depends if it has more than 8gb or an sd slot but mim now thinking this would be my choice if i wasnt so impatient to gte a wp7 device.

my list of things that make a good wp7 phone.

Super AMOLED screen - why? at first i didnt care about this `feature` until i put my omnia 7 up against a HTC HD7. it makes the HD7 screen look very poor indeed. once youve seen the difference in the flesh theres just no going back

NAND memory - looks like samsung has done a great job with this memory with tests proving that its faster than micro SD and performs better, if you can get a 16gb omnia would an awesome purchase.

4" Screen MINIMUM. one of the first things i wanted was a bigger screen than on my last phone, this will be especially useful when playing xbox live games such as rocket riot. on a smaller screen your thumbs will be covering up a lot of playable space.

Windows Live ID - if you havnt got one get one, WP7 integration is awesome, you can use email,zune and xbox live with this.
[Windows Phone 7 General] lqaddict:
How is it solved on the Dell???
[Windows Phone 7 General] JEEtoP:
One of the main things that made me decide on an HD7 was the screen size as I use Sharepoint pretty much every day and having that extra size is great.
[Windows Phone 7 General] chizzwhizz:
if the venue pro was on at&t I would get it...but since it's not I want the samsung focus...which is just as great a phone IMO
[Windows Phone 7 General] nirpaudyal:
Interesting views. I had a look at some of the phones suggested and did think that the Dell Venue looks quite impressive. Perhaps too thick tbh.

I like my phones slim and light - the most lightest I found so far is SAMSUNG focus - any thoughts on that?!

Samsung Omnia 7 looks the smartest I think - but a bit of Iphone copying going on with the button!

Additionally, I like to have all buttons as hardware. Thats one thing I hated about my HTC HD.
[Windows Phone 7 General] arturobandini:
For me the ideal WP7 phone:

* Storage (more than 16GB)

* NAND memory instead of poor SD cards

* battery life (should be more than 1 full day)

* hadware buttons (no sensitive buttons)

* S-AMOLED screen instead of bad S-LCD or LCD screen

* AND THE BEST: a slot for an additionnal SD Card

None of the current WP7 devices has a decent storage, except the LG and the Focus. I know it's a total deal-breaker for most people I know.:mad:

Regarding battery I'm becoming very tired of all these manufacturers that still cannot propose a decent battery lasting more than a couple of hours.:mad:
[Windows Phone 7 General] ericc191:
Well, for me, I'll be able to just take my SD card out and plug it into my computer. Copy whatever files I need to quickly and then slide it back into the phone. :D