yashsingh1/xdaforums huggingface dataset:
[Desire General] jaavaa:
I did this procedure and at the end wiped battery data.

Now i can get to recovery but i cant boot up. Phone stuck at white HTC "boot animation". I did a nandroid restore but still no boot. Doesent matter if its connected to charger or not.

Any suggestions?
[Desire General] cez10:
how long have you been waiting for the boot animation to go ? sometimes it can take up to 10minutes
[Desire General] jaavaa:
Its been there now for like 2 hours..
[Desire General] cez10:
hmm maybe go to recovery and reflash the rom, if it wont help flash the radio, maybe you accidently wiped something else or some system files went missing hmm
[Desire General] jaavaa:
Flashed rom again (leedroid 2.4) and i booted up fine. When i restart the phone it is again stuck in the htc screen. After a reflash of the rom it boots once again. What the h*ll :confused:
[Desire General] ttanemre:
I was abit doubtful about this calibration thing. I also assume that discharging the battery down to zero is not good for the battery life either. After the first charging (down to %0 then to %100) the battery ran down very fast (like in 5-6 hours). But I started the second charging cycle (the 8 hour charging when the phone is on) around %7 battery life (maybe this will help). Then followed the instructed steps. Now my Desire HD is at %69 charge, with 19 hours 43 min. running time. And the battery is constantly decreasing. Did not stuck at %100 or %99, but constantly decreasing since unplugged. I've been using wireless, a few applications like facebook and angrybirds (but for a few times, not severely), and a few shots with the camera during the day. I hope the battery will not run down fast after this... But maybe these calibration steps are not necessary, after 5-6 standard charge-discharge cycles the battery will reach its potential as well.
[Desire General] kingears:
Worked a treat for me
[Desire General] happy20b:
Dear All,

I bot HTC desire 2 days back. Im loving it except d battery life :( My cell battery is used to drain from 100% to 98% in les than 5 mints without any usage. :eek: ..

I was very happy when i came across this thread. I started reading this thread and got confused by d time i completed 10 pages.. I tried it once but no luck... I have few questions here..

I have installed a battery widget which shows me following stats

36.8 Celsius

3864 mV

58%( at battery level)

Li-ion

1] When i tried this for the first time (on d 2nd day after I purchased d cell) my battery was already 65% charged. So i charged till LED become green. But when i switched off and charged again it directly showed me green LED. Does that mean my battery is properly calibrated ?

2] Do i have to clear battery stats ?

3] My cell is not rooted. So how can clear my battery stats without rooting it. If i have to do it in recovery console, can some one please tel me the procedure since im new to htc desire?

4] Im goin to follow below method today.. please let me know if it is ok..

1] Wait till battery level goes between 5%-10%

2] Then recharge till it reaches 100% (green LED)

3] Unplug d charger, switch off d cell and connect d charger again.

4] What if LED shows straight away green color ? If it shows orange then i will charge till LED turns to green.

5] what should i do next here ?

a] If in step 4] i get green LED straight away.

b] If it was orange n if i charge it till it turns green.

c] depending on a] and b] do i have to clear battery stats ?

I request some one to guide me before i proceed with this. Later i will post my results.

Thanks & Regards
[Desire General] undercover:
It's a new battery, give it a chance to run in. Basically, you need to do full cycles, charge till 100 then let it die. I recommend 10 full cycles. After that, if you are still not happy, charge to 100%, delete bat stats, (you have to be rooted, but its easy as pie, you'll do it anyway, once you run into low memory problem, trust me). And do a couple of full cycles again, so phone can build bat stats again.
[Desire General] cez10:
installed cm7 with new drivers ril and vork kernel and since the morning with very low usage ( few texts + ping) 2g network/wifi on all the time + every now and then sync and i still got 83 % :)
[Desire General] happy20b:
Thanks for the info. I will try 10 full cycles first as u said.. By d way abt rooting,

a] If i root my device what about my warranty ? is it void ?

b] Is it possible to unroot in future if i need ?

c] What do u mean by low memory problem ? I have froyo out of d box. apps r installed in sd card.

Im only new to HTC Desire.. i dono how to root this device .. I have HTC touch pro cdma mobile and i have flashed both windows and android ROMS and experimented on it ;). Please point me to the procedure rooting htc desire.

Thanks once again :)
[Desire General] cez10:
a) i havent seen any info about it from network providers (t-mobile here) but i guess that yes warranty will be voided, because it is interfering with the critical parts of the phone that can brick it, but as for point B it is possible to unroot which means warranty can be used again I guess if something goes wrong :)

c) apps to sd on android are still kind of taking up a lot of space, i have about 100 apps installed and still 90mb space left on my device thank to custom root and custom apps2sd script

have a look here, http://xdaforums.com/forumdisplay.php?f=628

everything you need about rooting, guides etc etc is there :)
[Desire General] undercover:
a. Yes

b. Yes, you can always return to out of the box state for warranty (well, not always but in most cases)

c. Still too much of an app stays on phone memory. You WILL be short of memory sooner or later.

Root with unrevoked http://unrevoked.com/ they have a guide, but if you have any questions LPVEHO8P on Live Profile, i'm glad to offer help, but please, do your research, all the question you will have, have been answered many times. Also, i recommend using amonra 2.0.1/2.0.0 when you root, people with cwm seem to have more problems with certain roms. More on rooting here http://xdaforums.com/showthread.php?t=696189

Look up roms here http://xdaforums.com/showthread.php?t=809328

Then choose your rom and flash it. Certain things require s-off, but it's ok not to, you won't necessarily need it. Once you learn more about desire , you'll be able to make your own call whenever you need it or not.

Look for the roms with A2SD+ , as this is the thing which increases your internal memory capacity. You'll need to partition your card. Seach xda for fat32 + ext3. Easiest way to do it is with amonra recovery (which you'll have if you choose to install custom recovery within unrevoked, as by default it flashes cwm, and i'm not sure if cwm can partition cards).

Good luck matey :)

Oh, and sorry for stealing this thread for a bit lads.
[Desire General] happy20b:
Thanks for the information and d useful link. Right now my concern is only about battery life and not planing to use any custom ROMS , but definitely in d future.

For now(may b after 10 full recycle) I would like to root the device, calibrate the battery and unroot the device.

I had heard of an app which will temporarily root d device and when we reboot the device automatically get unrooted. please let me know if it is available.

Im really upset with battery, today my battery went from 100- 90% within a hour in idle state[ wifi off, sync off, display off, gps off] :( .. I hope with this battery calibration everything wil be fine.

Thanks
[Desire General] Magikq:
Thanks for that
[Desire General] Stefanic:
Great info, I also did this with my Desire and my Desire HD and works like a charm!
[Desire General] barti2000:
Thanks!

I´ll try it tomorrow!
[Desire General] sz1a:
TO EVERYONE:

I have an HTC Legend and needed to use this method. Why? If you flash a rom to your phone with the AC adapter plugged in, no matter what percentage you were on previously you will see 100% after flash is done. Then it drops to its original value slowly but surely and you loose whatever the difference was.

I used this method and battery life wen't back to normal. However, if I leave my phone on the charger for an entire night, it will be at 74% when I wake up. This means it is slowly cooking the battery cos in reality its well on or above capacity. After a restart it shows 100%.

So, this screwed up my battery by making it think it is not at capacity when in fact it is and that's pretty dangerous. Is there a way of fixing that?
[Desire General] krwlng:
hi all

so i decided to try this with my desire hd. running seo's fusion 0.10 ROM with stock kernel and the latest radio.

prior to performing these steps, my battery would last anything between 6-8 hours. from full charge to total shutdown. my mobile network is always on but not the wifi or gps. i spend about 3 hours online with surfing, facebook, twitter and whatsapp,

i performed the steps in the first post. after which i noticed that there was not much of a difference.. i think. i peformed the steps last night. 8 hours later, this morning, my batt had dropped about 30% without doing anything other than probably syncing gmail and the weather.

i'm going to try the batterycalibration app from the google market now.

will let you guys know if its any good.
[Desire General] enricoandreoli:
It works! ;) Thanks!
[Desire General] gizlgisbert:
works great.. thank for that
[Desire General] Lord Zog:
Works great.. I can see my battery at 97% again. :) heh
[Desire General] tariqsdk:
You need to format your SD card or just remove it and then turn on your phone it should work.
[Desire General] RealyPssd:
Thanks, maybe I'll try it out too.
[Desire General] decebal12345:
My first post in his forum.

I have HTC HD2 with Android and my battery goes off very fast. Charged out (11 PM) and in the morning it shows 11% battery left.

Battery history shows me 50mAh - 250mAh overnight without use. I read that a normal discharge are values between 4 - 7 mAh.

I think, i will use the tips but I'm afraid I will damage the battery... with WM, I can use the phone without charge for 2 days, normal use.
[Desire General] erklat:
Damn, I knew this crap is going to backfire on me. I was fiddling something with partition tables and s-off some time ago, a lot of flashes and reboots, but I left it on usb all the time. Prior to that indicator was spot on precise. After that, it started turning the phone off at about 9%. Last night in an attempt to remedy that, I got it to turn off at 19%. Very nice. Now we'll see because I downloaded the calibrator from the market, but I doubt it as the only thing it does is wiping battstats, the same thing I did. This indicates how good this method is :rolleyes:
[Desire General] jjdoctor:
F@ck ****...... I think I screwed up my battery with this method... Normally my phone would come down to 90% in 3 hours and now its just 50 mins use and its down to 90%...

Is there any way to reverse the procedure?...

Please this thread should be deleted... its harming batteries with little or no gain... and for me its a disaster...
[Desire General] decebal12345:
Yes, I think is better to delete this topic because some people don't read all topic and they can ruin their battery.

Fortunately, my wife didn't let me to try this method.
[Desire General] jjdoctor:
Thank you for this stupid trick... I was such a moron to try this... My battery is dead after 9 hours...

I dont know it will recover or not... but I just think it wont..
[Desire General] decebal12345:
I suggest you to ask the people who tried this method first (with PM). I guess they found a solution but they don't follow this topic now.
[Desire General] jjdoctor:
now let me tell u my story of how ****ed up my battery is after this tip.

Before this Method..

My phone would charge to full 100% and then after 3 hours it would come down to 90%. on 2%, it would shutdown itself. I was getting an average of 20-24hrs with moderate use.

After applying this Method

My phone when plugged out from charge falls to 90% in less than an hour and would shut down at 8%.. my phone is now getting from 14-16hrs with minimum use.

this method is just a battery killing tip...

I would request Mods here to please delete it before someone else harms his battery...
[Desire General] Angen:
awsome guide:D
[Desire General] marcustg:
Battery Calibration

Test this app: Battery Calibration on Market
[Desire General] BigMrB:
AT YOUR OWN RISK - FIRST POST Mod Edit: There have been a few reports of damaged batteries by people on this thread. There is a chance that this MAY damage your battery. Please bear this in mind if you choose to follow the instructions above.

This method worked for me - I just wondered if it is known to fix batteries turning off at 30%.... I just presume my batt stats are knacked

Edit - If you have damaged your battery - try your luck with htc / network provider and ask for new battery!!!
[Desire General] k-lin:
Battery calibration app from market works fine for me
[Desire General] palito1980:
I have been flashing different roms like crazy wanting to find THE ONE. Finally I flashed MIUI 1.7.22 and I think I will stick to it for a while.

Unfortunately my battery was discharging very fast and it was a big problem form me. So I have found this post and did exactly as it says.

I charged my phone when it was on. When the LED turned green I unplugged the charger and switched off the phone. I noted the time it was 8:00 pm. Then I plugged the charger again and the phone started charging. It was charging till 8:39 pm. So according to the post there was something wrong with my battery. When the phone finished charging (green LED) I unplugged it and via Clockwork Recovery cleared battery stats.

Now after 12 hours at night when I did not use the phone except a 20 minutes play session and one text I still have, according to overcharged, 81% of battery and the voltage is 4016 mV. I will report when my phone will die to tell you how long did it last. Thank you very much.
[Desire General] cecengazi:
Thank you very much my battery is fixed...........
[Desire General] Homerstar296:
mine too supper dupper thanks
[Desire General] palito1980:
My battery lasted for almost three days. Now I am about to wipe batery stats one more time because I am keep changing roms and my phone simply needs that.
[Desire General] bbgmp:
Tried this method due to flashing a new rom. Battery life seems better (and full charge has higher mv) but phone is shutting off at 10%. Not sure how to fix that.
[Desire General] bluzermajstor:
Sorry, it's not working for me... when battery full, led is green in on and off mode.

Plus phone turns off at 15-20 % . I don't know how to fix it...

Regards

------------------------------

Desire PVT4, S-OFF, Villain ROM, Amon Ra recovery...
[Desire General] JohnnyBB:
i let the phone charge until the led got green with the phone on, and then i turned it off and plugged it back in, but its been half an hour and the led is still orange..is this normal?:S
[Desire General] JohnnyBB:
Nevermind, I just finished the whole process like half an hour ago..the battery is at 97% right now..I'll tell you how long it lasted tomorrow..it kinda looks like there's some small difference on the battery though..I expected it to already be at 90-85% by now..
[Desire General] JohnnyBB:
It doesn't look like it had that big of an effect:( my battery lasts about 16 hours, with using the browser and the youtube apps, playing music, texting ALOT, about 1 hour, 1.5 hour max on the phone, and 30 mins of playing games..i dont know, is that considered much?
[Desire General] psycho693:
In my opinion that is very good.battery life lasts a lot longer than mine does. I do about the same as you but less phone calls and mine last maybe 11 hours max and then totally dead
[Desire General] Batt2fd:
I did this on my EVO 3D as described in the very first post and my battery life has doubled. I am at 35 hours and still have 33% battery left.
[Desire General] Mancsyyy:
help me

I followed the given steps, but when I first turned off the phone and connected to the charger, the LED stayed orange. It was on the charger for 8,5 hours(!) and it is currently still orange. Now I disconnected and powered on the phone. The battery is on 80 percent!!! I can not believe it.

Neither I could believe that when I left my Desire (2.2) on the charger at 01 AM with a 100% battery, I woke up at 06.30 AM that it has 6% (SIX!!).

And it has got a very poor performance: with 1 hour voice call, 10 minutes of browsing, 1 hour of watching video, 5 minutes of listening music, 30 minutes of playing, the battery is totally out, it's dead.

When in standby and even not turned on, it drains 40% under 8 hours.

Please help me, what could I do?

#update: Oh, and I forgot to mention that except 3G and weather sync, everything is turned off.
[Desire General] decebal12345:
I don't know what you have to do now. I suggest you to ask the people who ruined theirs battery with this method many days ago (with PM). I guess they found a solution but they don't follow this topic now.
[Desire General] Mancsyyy:
I wrote the parts of my previous comment in a wrong order - my Desire's battery was already ruined and performed so poor (although I did nothing with it). I decided to try the trick in the topic, but the device stucked on orange.
[Desire General] Sephi:
I did this and now it seems like my battery isn't charging to green anymore. -.- Any solution to that?
[Desire General] darwin567:
Please delete this thread because it does not help, it just makes things worse.

I also tried this steps and got my battery messed up so to undo this please do the following (it helped me)

1. Drain your battery until the phone shuts down

2. Try to turn it on again after a minute an wait until it shuts down again

3. Connect it to a wall charger and leave it to fully charge over night while it is OFF

4. Unplug it from a charger and turn it on.

Now your battery should be OK. Please notice that your phone should be OFF while charging in step 3

Post your results!
[Desire General] MobilNerd:
I have tried every tip I have found, and I think https://market.android.com/details?id=com.nema.batterycalibration&feature=search_result is the easyest option :)
[Desire General] magier6:
I treid also every tipps but nothing really helps... I guess the best solution is to fully charge your phone and drain it till it shut down by itself...everytime
[Desire General] jukyO:
Use this howto:

http://xdaforums.com/showpost.php?p=7850480&postcount=3

This is for N1 battery, use value 1400 for full40 if using Desire.

Link to the Battery Calibrator app:

https://market.android.com/details?id=net.jonrichards.batterycalibrator.ui

Use proper kernel, if your kernel doesn't support it, you can enter values, but nothing will be changed.

I had the same problem, now my Desire shuts down at 0% :)
[Desire General] erklat:
Batteries are the same. 1452 is full40 for Desire too.

This is the real calibration. Deleting batterystats.bin is a big misconception.
[Desire General] lindahl85:
I did that but i will never reach so high volt anyway. The phone says 4.139mv and 99% now when its fully loaded.
[Desire General] 7_michel:
Does any of you got a HTC battery with part number 35H00132-06M?

The one I received few days ago do not allow to have any significant voltage , current and temperature readings!!!!!

THe supplier guarantees that it is a HTC branded battery.

I am surprised
[Desire General] erklat:
I hope that eBay is not it's place of origin?
[Desire General] 7_michel:
I didn't get it from eBay, I get it from a local reseller, but I agree with you, it is not even a full guaranty it is a genuine battery......

I also bought an unbranded battery from eBay , and this later one works perfectly, like older HTC one.

Strange world!!!!!
[Desire General] joaonds:
To wipe battery Stat, I need have root?

If you do not need root, what procedure the HTC Incredible S? As I enter the recovery?

Thank you for listening
[Desire General] mohsinriaz:
cell phone dies at about 25% with battery left

hey all, i tried to read the forum to figure it out but 600+ pages :p

when cell on charge and it shows green light(charging complete) at around 90%, this needs to be calibrated.... right? i did using cmw and also an application, it helped too, but now my phone starts dying with almost 25% of battery left, or at least thats what my phone showing me... not been able to correct this even with the wiping stats proceure...

this sucks... i mean charging complete at 70% is bearable, but cell dying randomly at 25, 30%... this literally hurts :p

Please help me :)

edit: i am using htc desire cm7 nightly.

btw my cell started dying with 10% battery ages ago.... i didnt take notice... now this has become a problem.

thankyou in advance :)
[Desire General] 7_michel:
Even if you suceed recalibrating your battery, you will stay with a battery which has definitively lost around 25% of its nominal capacity. http://78michel.unblog.fr/htc-desire-battery-shutdown-analysis/

In such a situation, the best way is to get a new one, may be.
[Desire General] Tsjoklat:
The only way that I know of to fix the battery is to use the battery calibration app used by the Oxygen ROM.

http://forum.oxygen.im/viewtopic.php?id=723
[Desire General] 7_michel:
Very interesting link.

Maxim documentations are very precise, but several questions arise:

How to know if the battery managing IC in the smartphone is a Maxim model ?

How to find the registers adress which should be adjust to recalibrate the battery for non Maxim IC? Are these adress the same for all manufacturers?

Managing a Li-ion battery seems very complicated. Reading the Maxim AN131 document , I do not understand why a so sofisticated program is not able to have an autocalibrating process that could take into account the battery ageing......
[Desire General] Tsjoklat:
I think this calibration process is only tested with stock batteries for the HTC Desire GSM (bravo). I would assume the battery is the same for all HTC Desires (GSM and CDMA) but don't quote me on that.

Before doing this procedure, I had the same problem everyone is complaining about with the battery shutting the phone down at 20% power. After completing this calibration process, my phone shuts down around 2% power. Win.

No other method seemed to work to fix the battery besides this method.
[Desire General] vbz1312:
Battery Calibration

Battery Calibration on the android market, just for rooted phones.

---------- Post added at 08:52 AM ---------- Previous post was at 08:22 AM ----------

You have options in clockwork recoviry to reset battery log.
[Desire General] peejanz:
My battery suddenly dies at 13% :eek:
[Desire General] Tsjoklat:
Deleting the battery stats does not fix the battery. The battery stats is just a file on your data partition that keeps statistics of your battery performance. That file also gets wiped out every time you install a new ROM. You have to reprogram the battery itself. That is what that calibration program does with the Oxygen ROM. The kernel in the Oxygen ROM is patched so that the battery calibration program can write to the registers on the battery itself.
[Desire General] renabat:
My sometimes dies at 20%. sometimes even goes to 0%. Already size 1 or 2 more times found no big difference.
[Desire General] dnyanesh:
After this procedure, the phone remained at 100% for 2 hours or so even after making a 5 minute call and messaging at a interval of 15-20 mins. After 8 hours, it was down to 90%. Now after 10 hours, the battery level says 84%.

It seems to have worked for me but it's too early to get to any conclusions. Time will tell.

Note: Edge was ON all the time and WiFi was used for 10-15 mins.
[Desire General] dnyanesh:
It lasted for more than 24 hours with low-moderate use but it shut down itself @ 15% battery level.
[Desire General] Shehabi:
i will try it :D
[Desire General] michaeldepotter:
thanx for the tip!
[Desire General] r3act:
I tried it but my battery level keeps dropping to 90% before charging occurs. So the LED stays green and no charge while android indicates 99-to-90% before the LED turns yellow. Maybe my battery itself is getting bad?
[Desire General] ivan_dgo:
i will definently try, hope it helps