Possible battery trick addressing improper charge issue in 7720 after ISVcleanup - HD2 Windows Phone 7 Q&A, Help & Troubleshooting an

Using Battery Tool, my HD2 on Mango 7720/ISV cleanup regularly charged pretty much 3/4 of total battery charge or in terms of HTC Battery Tool the charges were as follows:
FULL 1230
ACR 935
With that being said I 'd previously run NODO on 2.12 with great reception and the same charging issue. Update to 2.15 with Mango degraded my reception, battery life and preserved the charging issue. Then I started seeing posts claiming that flash to 2.12 in Mango improves the overall experience and one of them literally mentioned the charging issue which allegedly disappeared. Knowing what to expect from 2.12 due to prior NODO experience, I decided to roll it back and see what happens...
First flashed 2.12 over 2.15 with battery approx. quarter down its charge and despite better reception my battery constatly charged only three quarters of total charge. Sooo, after reading couple posts on 2.12 radio, and how the battery charges fully all the way to 100% (using HTC Battery Tool to check this), I finally decided to charge my battery in external charger and than once again reflash 2.12 this time with fully charged battery and...
No more three quarter charge . Will do some repetitive charging to test and confirm but so far it's always charging all the way! .
Hope this helps someone who's suffering the same half ass charging annoyance .
PS: Drawback to this is need for external charger or properly charging phone
To download CustomRUU and radios click link below:
http://forum.xda-developers.com/showthread.php?t=611787 (tnx user Kholk for useful post)
Hope this will work also for some other people .

Uhm... WP7 might be considering a theoretical maximum, just like android does with it's battery calibration.
Difference is, Android has on-the-go battery index recalibration. If it reaches the theoretical maximum (100%) and the charge is nowhere near 20/10 mAh, it keeps charging and set's the new maximum to the new charge (i belive it has a arbitrary battery units, at least Android on HTC Kaiser does).
What you're saying is, only flash WP7 if you're charge is at, or near 100% on WM6.5/Android Otherwise WP7 will waste battery charge

daedric said:
What you're saying is, only flash WP7 if you're charge is at, or near 100% on WM6.5/Android Otherwise WP7 will waste battery charge
Click to expand...
Click to collapse
Even better... In case that your battery does not charge properly there is no need to repeat WP7 install, only reflash your radio .
Yes, you may ask how device radio rom could have any effect on WP7 installation which comes with it's own radio drivers after all, but today I can attest that it does. My phone is regularly charging all the way to 1190 out of 1230 all the time as opposed to post Mango Rom flash value of 935 and all I did was reflashed device radio with fully charged battery .
Appreciate the Android analogy .
PS: I presume that it does not charge full 1230 due to phone not charging in USB flasher mode and during flashing process

Question, on what wp7 phone is our version based ?

daedric said:
Question, on what wp7 phone is our version based ?
Click to expand...
Click to collapse
I suppose it's HTC HD7 based as far as drivers for individual device components go. After all, people who are getting their new WP7 Roms activated (on HD2) literally tell Microsoft customer service reps that the activation is for HD7...

LuckTR said:
Using Battery Tool, my HD2 on Mango 7720/ISV cleanup regularly charged pretty much 3/4 of total battery charge or in terms of HTC Battery Tool the charges were as follows:
FULL 1230
ACR 935
Click to expand...
Click to collapse
Eh ... i have tried but i can't this battery tool you're talking about Where is it?

ToddeSwe said:
Eh ... i have tried but i can't this battery tool you're talking about Where is it?
Click to expand...
Click to collapse
Hi.
Click the below link (tnx xboxmod), and download the zip file attached to the first post. HTC Battery Tool is one of the utilities in that archive....
http://forum.xda-developers.com/showthread.php?t=896104

Have I missed a post somewhere, how are you reflashing only the radio? I have been wanting to change my radio to one better suited to Australia. I was loathe to go through the entire process of WP7 install again, when essentially I have a bug free functioning install.

Speedn said:
Have I missed a post somewhere, how are you reflashing only the radio? I have been wanting to change my radio to one better suited to Australia. I was loathe to go through the entire process of WP7 install again, when essentially I have a bug free functioning install.
Click to expand...
Click to collapse
Hi.
There is no other way then complete WP7 Rom reflash if you'd like to switch actual WP7 radio but hardware level radio driver (OS independent) can be upgraded/degraded without resetting or reflashing your phone . Note, I am talking about radio e.g. 2.12 and more as made available via the link in post #1.
With that being said, if there's any radio on that list that suits you or if you're in possesion of Australia compatible radio then all you have to do turn of your phone, next hold volume down --> power on your device and wait for the rainbow screen to appear (kernel flash interface ). Once your phone is connected to PC, your interface type will change from serial to usb and do your thing as instructed under the radio rom link in post #1. Let us know how do you and if there's anything else that could possibly prove helpful
Regards to Australia

Interesting.....
I was only getting a 75% charge with Mango and 2.15 so i flashed my radio back to 2.12.
After an immediate restart the battery charge graphic then showed 100%. Weird.
As the amber light was on I left the device charging into it changed to green. I then reflashed back to 2.15 and I have been getting a more accurate battery charge graphic ever since.
Ooh and the bonus, my battery is lasting longer between charges. Yey

Are you supposed to charge the device until green before flashing?
How long does your batt. last? On the worst day I had 4 hours batt. time (with BT on and WIFI on).
Today without WIFI and BT on the batt. seems to be lasting something around 15 hours.

I fully charge to green before I do anything nowadays.
I rarely use WIFI but I do have two email accounts set-up which check for mail every 30 minutes. With moderate talk time and two hour train surfing time I'm getting about 20 hours between charges. Which is considerably more than before.

my battery loses 10% on 30 mins, that's so LOL..
I have 7720 with 2.15.. with camera trick..
i'm gonna try the 2.12.. just a question, DO i need to HARD-RESET(by phone7 about screen) after the radio flashing?

luxxa said:
my battery loses 10% on 30 mins, that's so LOL..
I have 7720 with 2.15.. with camera trick..
i'm gonna try the 2.12.. just a question, DO i need to HARD-RESET(by phone7 about screen) after the radio flashing?
Click to expand...
Click to collapse
Hi...no, do not hard reset your phone at all. Whenever CustomRUU completes the ROM flash procedure, simply close RUU on your computer screen and your phone will restart (you will be exiting the rainbow/kernel USB interface). Mango install will be fully functional just as before you shut it down prior to flashing new radio .
Srry to hear about your battery drain issues...hope this will help to decrease it by a lot.
Let us know

The only solution that worked for me amongst all the options (based on my experience)
1. Tried the camera trick - NOT WORKED
2. Followed the steps below - NOT WORKED
* Boot the phone to MAGLDR
* Select "Reset" option from the menu
* Phone reboots normally
3. Hard reset the phone - NOT WORKED
4. Charge the phone in magldr USB storage option - NOT WORKED
5. Finally, flashed the 2.12 radio, did the camera trick (not sure if its relevant). The battery life has improved dramatically. It lasts more than 24 hours and still running (26% left) - WORKED.
Follow the thread below to download the 2.12 radio
http://forum.xda-developers.com/showthread.php?t=930578

Related

Multiple problems after installing 1.48

I don't even know why did I update, 1.43 worked fine for me. After I installed 1.48, I've noticed several problems:
- battery drains a lot faster
- problem with the auto lock, or lock with "end" button - after I want to use the device again, it won't turn on all the time, buttons glow, but nothing happens
- few times phone didn't wanna dial some people when I enter their contact and try to dial their numbers
Anyone experiencing similar issues? Both versions of ROM (1.43 and 1.48 are WWE East Europe)
can't be that I am the only one facing these problems in 1.48
hehehe seems u are tryed to flash 1.48 a second time?
I seem to be having a problem at the moment with 1.48 where sometimes (usually) if I plug in my phone to the computer it freezes up. Only way to solve it is to take the battery out.
Don't know if it's to do with 1.48 or some other program I've installed. Doesn't seem to do it all the time but it really p!ssing me off. That battery cover isn't easy to get on and off. Why on earth didn't they put a small reset button somewhere like on my trusty Trinity.
xardus said:
hehehe seems u are tryed to flash 1.48 a second time?
Click to expand...
Click to collapse
I reverted to 1.43 WWE East Europe, downloaded from HTCPedia, but seems like battery is again draining a lot faster than on my stock ROM. I don't know what whas the catch in my stock ROM, the one I got when I bought the phone, but seems like battery was far best on it.
It was 1.43 WWE East Europe as well btw, I have no clues..
the problem with battery is with htc sense. You can notice this disabling it for a day and using the Windows default. It is a huge diference
Im using 1.48 official and not get any special problem....
Yes, sometimes after reboot my device I not get lock of screen. But if to do long press of OFF button and choise LOCK then all works fine. Also, I have problem with Skype, but it not special problem, I think.
Battery works about 1-2 day with my style of using device. It mean 1-2 hour of speech, WiFi when available, Inernet browesing and checking mail every 10min. I think, this normal.
With 1.48 I have more faster connect to WiFi, more stable connect in GSM and more natural sound.
May be, I will reflash my device to 1.43, but now Im happy from 1.48.
i have the same battery drain with 1.48,
back to 1.43
I have similar problems. 1.43 was working great for me and I thought I could get a little more out of my HD2 with 1.48. Turns out not. Battery life has decreased, the phone crashes every now and then (as opposed to never with 1.43) and the camera takes horrid pictures with the flash. I am thinking of reverting back to 1.43. I am using the Western Europe ROM.
I will now wait for official HTC roms before installing anything.
Sure you can disable Sense and have huge battery life but that sort of defeats the purpose of the HD2 in my opinion.
Bear in mind that WM seems to take a little time to 'calibrate' the battery with each new ROM. Various threads I have read suggest anything from 2-3, up to 10 or more battery drain/recharge cycles before you get a true reading.
Ditching a new ROM after only a day or two may therefore be a little previous...
meegulthwarp said:
I have similar problems. 1.43 was working great for me and I thought I could get a little more out of my HD2 with 1.48. Turns out not. Battery life has decreased, the phone crashes every now and then (as opposed to never with 1.43) and the camera takes horrid pictures with the flash. I am thinking of reverting back to 1.43. I am using the Western Europe ROM.
I will now wait for official HTC roms before installing anything.
Sure you can disable Sense and have huge battery life but that sort of defeats the purpose of the HD2 in my opinion.
Click to expand...
Click to collapse
Strange with 1.48 I can take really great photos which I couldn't with 1.43. My phone since I have flashed it to 1.48 never hang/crash but battery drains very fast.
Gustopher said:
Bear in mind that WM seems to take a little time to 'calibrate' the battery with each new ROM. Various threads I have read suggest anything from 2-3, up to 10 or more battery drain/recharge cycles before you get a true reading.
Ditching a new ROM after only a day or two may therefore be a little previous...
Click to expand...
Click to collapse
I didn't know this. Can anyone more confirm on this? Too bad I already went back to 1.43, I will see what happens
Gustopher said:
Bear in mind that WM seems to take a little time to 'calibrate' the battery with each new ROM. Various threads I have read suggest anything from 2-3, up to 10 or more battery drain/recharge cycles before you get a true reading.
Ditching a new ROM after only a day or two may therefore be a little previous...
Click to expand...
Click to collapse
This is hard to believe...
Gustopher said:
Bear in mind that WM seems to take a little time to 'calibrate' the battery with each new ROM. Various threads I have read suggest anything from 2-3, up to 10 or more battery drain/recharge cycles before you get a true reading.
Ditching a new ROM after only a day or two may therefore be a little previous...
Click to expand...
Click to collapse
I had also read something like that regarding the battery and new roms.
example for Energy ROMs
BATTERY SAVING TIPS
The first few days
• There is nothing special about this ROM to make it use more power than other ROMs except that it is tweaked for performance over battery life. After things have settled down, you should get a couple of days usage out of a charge.
• Immediately after flashing, you will probably observe very poor battery performance. This is due to the charging circuit having to reset itself.
• The battery meter will not settle down and give accurate readings for a few battery cycles. Give it a few days.
• For the first few battery charging cycles, try to charge to 100% with phone off and then allow battery to drain down quite a bit before recharging. This is so the meter will calculate drain well.
Click to expand...
Click to collapse
Battery drain & other issues
I am not having iszues with 1.48. battery drain.
I heard this so often in the HD forum but never experienced it, and I was flashing Miri's roms every second day.
If people mean their battery runs down very quickly after a flash, well it takes a lot of power to reboot, and then you are probably going to run the device for a while to get all your settings back. Well this I have experienced, but next charge, no problems. I flashed yesterday and recharged overnight and after a day of use my phone had 50% left. No issues yet either.
Xaddict said:
I am not having iszues with 1.48. battery drain.
I heard this so often in the HD forum but never experienced it, and I was flashing Miri's roms every second day.
If people mean their battery runs down very quickly after a flash, well it takes a lot of power to reboot, and then you are probably going to run the device for a while to get all your settings back. Well this I have experienced, but next charge, no problems. I flashed yesterday and recharged overnight and after a day of use my phone had 50% left. No issues yet either.
Click to expand...
Click to collapse
Was about to agree with you when i noticed something today: i usually charge my phone overnight (it doesn.t matter how much battery i have i just do it to be sure) but few nights i left it without a charge and notice 3% to 4% battery drain overnight (1.43 rom). After update(1.48) i left it overnight and noticed 11-12% battery drain(even though i left my phone for a few days to get used to the new rom). Don.t want to jump to conclusions yet but there could be something about battery drain in the new ROM.

[HOW-TO] Battery calibration

I've just found that on the desire forum, do you think it will word on ours HD2?
vidler said:
Found this on another forum, I have done this a few times myself (do it whenever i flash a new rom because i always clear battery stats, can't hurt). Have found that it does top it up a fair bit. Before doing this i find my desire will drop to +-93% straight off the charger, however this keeps it 100% longer and i actually get to see the numbers 99-94%
Worth a go in my opinion because it only takes 5 mins of your time and can't hurt the phone... So any minor gain from this process is a win...
Hi *******, I understand your concern regarding battery life on your Nexus One device. The following steps should significantly extend the battery life on your phone. Please connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once. If the issue of battery life on our phone persists, I recommend you contact our HTC accessory department directly.
Click to expand...
Click to collapse
link to the original thread
http://forum.xda-developers.com/showthread.php?t=755903
my guess will be no on this. As i think that the batteries are different. and it might be something with batteries that are in droid devices perhaps.
extasy98002 said:
my guess will be no on this. As i think that the batteries are different. and it might be something with batteries that are in droid devices perhaps.
Click to expand...
Click to collapse
I'm trying right now i'll report as soon as I have an answer!
I think it should work as it's wiping battery stats in android
im trying it too as we speak
I'm pretty sure that calibration will not work currently in android properly. Cottulla posted a few days back that the battery driver is still incomplete and currently only supports reading battery state and that the write too part of the driver has not been implemented. When the driver is complete and has full read/write battery function this procedure should work better.
drewestate said:
I'm pretty sure that calibration will not work currently in android properly. Cottulla posted a few days back that the battery driver is still incomplete and currently only supports reading battery state and that the write too part of the driver has not been implemented. When the driver is complete and has full read/write battery function this procedure should work better.
Click to expand...
Click to collapse
thats' true i didn't know that . it may be impossible to wipe battery stats this way
....
My battery wasnt calibrated properly and wudnt charge over 90%. Someone in this forum told me to switch off and charge until green and then switch it on. Now my battery seems calibrated plus i got 2 days of use on moderate use
drewestate said:
I'm pretty sure that calibration will not work currently in android properly. Cottulla posted a few days back that the battery driver is still incomplete and currently only supports reading battery state and that the write too part of the driver has not been implemented. When the driver is complete and has full read/write battery function this procedure should work better.
Click to expand...
Click to collapse
but ive seen several posts of people calibrating their battery in winmo and reporting better battery life....idk maybe placebo
i will try this too. i myself had an issue today. i'm using chuckyrom right now. i use it at work so i can turn the "phone" off while at work. so it is in airplane mode. i only used the phone today to check the time and played some uno on a break. my battery stayed on 100% for 5 hours. so i turned the phone off, took the battery out for 1 minute. put the battery back in and turned the hd2 on. it was still on 100%. 4 hours later it was down to 94%. i just didn't think that a true battery reading. most days when i have the "phone" turned on at work i only have 10% battery left by the end of the day... just seemed odd to me. idk.
Well, I don't know if this works 'properly' or not but it's certainly had an impact so it's doing something right.
Prior to the calibration I could only charge to 95% or so. Phone now seems to be charging to 100% all the time which is good. Battery life also seems great, not sure if this is down to the calibration or not as I moved to Darkstone V2 (16/08/10) release the day before so don't have a baseline.
FYI, as I type this I'm on 49% battery remaining after being unplugged for 10hrs. Fairly light usage, couple of calls; some texting but quite a lot of browsing and XDA App on 3G and WiFi.
Amazing progress the devs are making. Have been running various builds of Android for a week or so no and haven't yet had to revert to WiMo.
Sent from my HD2 using XDA App
Edit: Couldn't figure out how to take a screenshot without plugging in (and hence losing the 'time since last unplugged stat') - so here's a ropey photo for the inevitable 'screenshot or it didn't happen' remark Seems I've been unplugged for 13hrs not 10... where does the day go?!
Anyone able to do this with mattc Leo + Froyo w/Sense? The charge indicator LED never changes to green.
retain81 said:
Edit: Couldn't figure out how to take a screenshot without plugging in (and hence losing the 'time since last unplugged stat') - so here's a ropey photo for the inevitable 'screenshot or it didn't happen' remark Seems I've been unplugged for 13hrs not 10... where does the day go?!
Click to expand...
Click to collapse
Yeah, its hard to remember to take a screenshot before you plug it in (or in my case...reboot the phone)
You may want to try BatterySnap...its a free app in the market which gives you a great battery widget, plus a lot of really useful graphs and information.
I upgraded to Froyostone on the 12th...thats why the information is only going back that far...but as you can see, 18-19 hours a day at moderate usage is what I am getting on a regular basis
Cheers
Hey guys, I'm trying this method but my battery won't charge past 99%. any suggestions?
interfreak said:
Hey guys, I'm trying this method but my battery won't charge past 99%. any suggestions?
Click to expand...
Click to collapse
Power the phone off...then charge till you get a green light (Maybe even for an extra 10 minutes or so)...power the phone back up and plug into your charger. now it should charge up to 100%
I dont know if the battery itself is limiting the charge, or if its just the battery meter that is not displaying correctly...Anyhow, the above method corrects it for me whan this happens on my phone.
Thanks matey . I've only had my HD2 for five days but thanks to the awesome resource that is the xdadevelopers forum, I'm successfully running Android on my phone. :-D
AND This is my first WM device, have had iPhones for the past 2 years lol!
agentaaron said:
Yeah, its hard to remember to take a screenshot before you plug it in (or in my case...reboot the phone)
You may want to try BatterySnap...its a free app in the market which gives you a great battery widget, plus a lot of really useful graphs and information.
I upgraded to Froyostone on the 12th...thats why the information is only going back that far...but as you can see, 18-19 hours a day at moderate usage is what I am getting on a regular basis
Cheers
Click to expand...
Click to collapse
Cheers for the heads up - that looks like a great app! Downloading now...
quick question , do we do this while runnning android or windows mobile?
I did it from Android and seems to have worked a treat.
alantak said:
Anyone able to do this with mattc Leo + Froyo
w/Sense? The charge indicator LED never changes to green.
Click to expand...
Click to collapse
Just to confirm, I'm on ChuckyDroidROM with mattc Leo + Froyo w/Sense 1.5b.
- I can charge to green when the phone is powered off.
- I cannot charge to green in ChuckyDroidROM WM (says 100 in Battery screen, just no green LED)
- I cannot charge to green in mattc Leo + Froyo
w/Sense (stays at 98 in Battery screen)
Hi i am on ChuckyDroid ROM 2.12.50 Radio and darkstones 2.1 build.
have don successfully the trick in post 1.
Now having 100% in the taskbar and i will report if the battery life have improved.

[Q] battery driver issues

i currently own 3 units of s200 and have flashed them with cooked roms. however i have discovered a very disturbing fact about almost all the ccoked roms here - the battery driver is screwed up. i ended up changing 2 of the 3 phones battery because it only charges till 55% and 74% respectively, the 3rd phone charges to 95% and is stuck there
2 of the devices came from a same build september 2009 and the third phone is from jan 2010( i guess because it only says on the service receipt).
am i the only one who is experiencing this or there are more of you who had been infected by this bug?
i finally flashed all three phones with 3.03c official for malaysia/singapore
one more thing i noticed, all the roms effected were using somekind of tsowens taskbar icon as well as using non acer dialer.
bevoc said:
i currently own 3 units of s200 and have flashed them with cooked roms. however i have discovered a very disturbing fact about almost all the ccoked roms here - the battery driver is screwed up. i ended up changing 2 of the 3 phones battery because it only charges till 55% and 74% respectively, the 3rd phone charges to 95% and is stuck there
2 of the devices came from a same build september 2009 and the third phone is from jan 2010( i guess because it only says on the service receipt).
am i the only one who is experiencing this or there are more of you who had been infected by this bug?
i finally flashed all three phones with 3.03c official for malaysia/singapore
one more thing i noticed, all the roms effected were using somekind of tsowens taskbar icon as well as using non acer dialer.
Click to expand...
Click to collapse
Which Custom ROM did you used?
used a couple of kubino's
arto's latest
one of yours. (if i remembered correctly... i have to check my download folder)
additional info, the battery will get stuck on the last maximum charge before flashing... lets just say i have 55% batt and i flashed a custom rom... after flash, the battery will not charge more than that.
(it is safe to say that you must flash the phone in 100% batt... my bad, i flashed as soon as the charge goes over 50%... pardon my obsessive flashing disorder)
i even have left the phones connected to the charger overnight and in the morning it is still displaying the same level of charge (+ over heating = almost dead battery = buying 2 mugen 1500mAh's)... at first i thought it was a minor battery update lag bug, but the phones will die within 5 to 6 hours. sometimes they will be switched off for no apparent reason
i seriously want a 6.5.x rom running on all 3 devices because of the touch friendliness but the fact that it gives me battery errors turns me off.
just hope i can use custom roms like i used to on my previous htc devices.
bevoc said:
used a couple of kubino's
arto's latest
one of yours. (if i remembered correctly... i have to check my download folder)
additional info, the battery will get stuck on the last maximum charge before flashing... lets just say i have 55% batt and i flashed a custom rom... after flash, the battery will not charge more than that.
(it is safe to say that you must flash the phone in 100% batt... my bad, i flashed as soon as the charge goes over 50%... pardon my obsessive flashing disorder)
i even have left the phones connected to the charger overnight and in the morning it is still displaying the same level of charge (+ over heating = almost dead battery = buying 2 mugen 1500mAh's)... at first i thought it was a minor battery update lag bug, but the phones will die within 5 to 6 hours. sometimes they will be switched off for no apparent reason
i seriously want a 6.5.x rom running on all 3 devices because of the touch friendliness but the fact that it gives me battery errors turns me off.
just hope i can use custom roms like i used to on my previous htc devices.
Click to expand...
Click to collapse
Well your battery is broken.
I have already flashed with only 30 % of battery and nothing happened. Have also flashed my Phone over 200 Times in the last 6 months, in the last 3 days over 50 times - and the battery is still functioning without any problems.
On my Sencity ROM it holds for 2 days without loading.
thanx for feedback
i think i'll experiment on a few more roms. as far as my devices go, the problem was rom specific where flashing the stock rom eliminated the issue.
bevoc said:
used a couple of kubino's
arto's latest
one of yours. (if i remembered correctly... i have to check my download folder)
additional info, the battery will get stuck on the last maximum charge before flashing... lets just say i have 55% batt and i flashed a custom rom... after flash, the battery will not charge more than that.
(it is safe to say that you must flash the phone in 100% batt... my bad, i flashed as soon as the charge goes over 50%... pardon my obsessive flashing disorder)
i even have left the phones connected to the charger overnight and in the morning it is still displaying the same level of charge (+ over heating = almost dead battery = buying 2 mugen 1500mAh's)... at first i thought it was a minor battery update lag bug, but the phones will die within 5 to 6 hours. sometimes they will be switched off for no apparent reason
i seriously want a 6.5.x rom running on all 3 devices because of the touch friendliness but the fact that it gives me battery errors turns me off.
just hope i can use custom roms like i used to on my previous htc devices.
Click to expand...
Click to collapse
In my opinion, it is the issue of your battery, not the driver. If you use the original battery, you will find it works fine! The high capacity battery maybe need the special charger. Maybe just because the phone can not recongnize the battery's capacity.
By the way, I found that the battery does not work well with the new style roms. The battery always exhausts faster than the old style rom. For instance, the rom 23140 exhausts battery faster than rom 21057. My battery can stand by for neary 4 days with rom 21057, more than 3 days with rom 21895 or 219xx. But it can only stand by for about 2days with rom 23140 or 28xxx.
well the drivers are just ****ty
i searched thru the forums to find out what is missing... and i find then post that says new roms = new base drivers = recalibrate battery
guess what, i recalibrated my battery even the "broken" ones. now all are working perfectly.
the catch
1. recalibrate all batteries
2. delete any battery icons / taskbar enhancement (can be reinstalled after all this)
3. use any regedit find string "state" without the quotes. find "battery", and change all values to 0
4. charge batteries without turning on device, wait till light is green.
5. turn on device, make sure battery % is showing 100%
6. take off batteries, wait 10 seconds, reinsert battery
7. push vol+ and vol- and press power button (hard reset device)
8. voila... perfect charging battery
tested for 1 day already. the broken battery were not broken after all, its the battery driver. it will not make changes or detect changes from the battery because its from a different base driver (even if the drivers were said to come from official 3.03c bla bla bla.
sorry mates.. its not my batteries. if just one device its understandable. its from 3 seperate devices (one is actually my girlfriend's) so i made a conclusion that even roms cooked from same base will actually have a flaw that can kill your devices......... slowly
bottom note - only flash your phone at 100% batt and reflash stock rom in between flashes.
@ sinocreate
BTW the mugens were bought to replace 2 ORIGINAL batteries that had been damaged by the roms. do read the post carefully.
i think you are competent enough to understand my simple english.
bevoc said:
i searched thru the forums to find out what is missing... and i find then post that says new roms = new base drivers = recalibrate battery
guess what, i recalibrated my battery even the "broken" ones. now all are working perfectly.
the catch
1. recalibrate all batteries
2. delete any battery icons / taskbar enhancement (can be reinstalled after all this)
3. use any regedit find string "state" without the quotes. find "battery", and change all values to 0
4. charge batteries without turning on device, wait till light is green.
5. turn on device, make sure battery % is showing 100%
6. take off batteries, wait 10 seconds, reinsert battery
7. push vol+ and vol- and press power button (hard reset device)
8. voila... perfect charging battery
tested for 1 day already. the broken battery were not broken after all, its the battery driver. it will not make changes or detect changes from the battery because its from a different base driver (even if the drivers were said to come from official 3.03c bla bla bla.
sorry mates.. its not my batteries. if just one device its understandable. its from 3 seperate devices (one is actually my girlfriend's) so i made a conclusion that even roms cooked from same base will actually have a flaw that can kill your devices......... slowly
bottom note - only flash your phone at 100% batt and reflash stock rom in between flashes.
Click to expand...
Click to collapse
In your step1:recalibrate all batteries. I just want to know how to recalibrate the battery?
I remember that the system can recalibrate the battery automatically from maybe WM6.1 or newer core...
recalibrate
set backlight to maximum
turn off powersaving
let the device run until it dies by itself
take out battery for 10 seconds
put it back in
turn on device
if device turns on - let it alone until it dies again
if the battery have fully discharge, hold the power button red led will blink
once you know battery is fully empty, you can
a. charge using the original acer desktop charger
b. charge using a phone with stock rom
c. charge using your phone (make sure phone is off until fully charge)
wait till green light. then you're done.
the premise of this.
1. every battery has a chip that tells the phone and power management system that either it is empty or charged (voltage level, temperature etc)
2. Flashing custom roms abrupts this transaction of info from battery to power management causing innacurate reading.
3. new base driver will detect different battery level, some are ok and some are not, unfortunately in my case it has a serious error.
4. recalibrating is just a remedy to make sure that both phone and battery starts reporting on power drain from 100 - 0
one more thing, if you think your phone is affected, charge at a minimum of 8 hours (sometime the green light will come out earlier due to the fact that it is not accurately reporting the battery charge)
bevoc said:
i searched thru the forums to find out what is missing... and i find then post that says new roms = new base drivers = recalibrate battery
tested for 1 day already. the broken battery were not broken after all, its the battery driver. it will not make changes or detect changes from the battery because its from a different base driver (even if the drivers were said to come from official 3.03c bla bla bla.
sorry mates.. its not my batteries. if just one device its understandable. its from 3 seperate devices (one is actually my girlfriend's) so i made a conclusion that even roms cooked from same base will actually have a flaw that can kill your devices......... slowly
bottom note - only flash your phone at 100% batt and reflash stock rom in between flashes.
Click to expand...
Click to collapse
Where did you find that? Because that is for the HTC Devices. The ROM's for the HTC's use different battery drivers.
For our Acer device there are drivers 2.002 and 3.003. None of the kitchen Chefs use the old battery drivers or replace something in the OEM package.
So, if I say to you that my ROM has 3.003 drivers then be shore - there is no difference between my ROM and the official Acer one.
sinocreate said:
In your step1:recalibrate all batteries. I just want to know how to recalibrate the battery?
I remember that the system can recalibrate the battery automatically from maybe WM6.1 or newer core...
Click to expand...
Click to collapse
well these roms are not recalibrating automatically as they should
brainmaster said:
Where did you find that? Because that is for the HTC Devices. The ROM's for the HTC's use different battery drivers.
For our Acer device there are drivers 2.002 and 3.003. None of the kitchen Chefs use the old battery drivers or replace something in the OEM package.
So, if I say to you that my ROM has 3.003 drivers then be shore - there is no difference between my ROM and the official Acer one.
Click to expand...
Click to collapse
yes there is a difference. new builds brings new improvements/change towards many features including power management. i am sure you have been around long enough to have experience improvement in kernel and memory management as well as power management.
driver 303c was specifically made for the old builds. not 6.5.3. so i guess the best way to be sure about the battery issue is to recalibrate. it is safe and it is free.
bevoc said:
yes there is a difference. new builds brings new improvements/change towards many features including power management. i am sure you have been around long enough to have experience improvement in kernel and memory management as well as power management.
driver 303c was specifically made for the old builds. not 6.5.3. so i guess the best way to be sure about the battery issue is to recalibrate. it is safe and it is free.
Click to expand...
Click to collapse
Yes, you are right. If the battery isn't functioning as it should - then it is best to recalibrate the battery.
But normally this won't happen if you first full charge the battery when you buy a phone and then turn it on.
thanks
brainmaster, nice rom by the way, thanks for cooking. i'm using one of your rom now, i recalibrate and getting a good battery life good battery life.
next order of business - waiting for someone to compile a linux kernel!!
hahaha
bevoc said:
set backlight to maximum
turn off powersaving
let the device run until it dies by itself
take out battery for 10 seconds
put it back in
turn on device
if device turns on - let it alone until it dies again
if the battery have fully discharge, hold the power button red led will blink
once you know battery is fully empty, you can
a. charge using the original acer desktop charger
b. charge using a phone with stock rom
c. charge using your phone (make sure phone is off until fully charge)
wait till green light. then you're done.
the premise of this.
1. every battery has a chip that tells the phone and power management system that either it is empty or charged (voltage level, temperature etc)
2. Flashing custom roms abrupts this transaction of info from battery to power management causing innacurate reading.
3. new base driver will detect different battery level, some are ok and some are not, unfortunately in my case it has a serious error.
4. recalibrating is just a remedy to make sure that both phone and battery starts reporting on power drain from 100 - 0
one more thing, if you think your phone is affected, charge at a minimum of 8 hours (sometime the green light will come out earlier due to the fact that it is not accurately reporting the battery charge)
Click to expand...
Click to collapse
I m testing this method right now,then i ll report results.I m in Arto 3.9.2 rom now and battery with a good use last to me one day and half
I ve tried with no success...Nothing changed here
@axel85
what are you trying to change?
READ THE THREAD CAREFULLY.
DON"T JUMP INTO CONCLUSIONS.

Better battery life on HD2 WP7

After unplugging the phone turn the camera on and record for about 15 secs and your battery should last for about 2 days or longer. I tried it on 3 different HD2 with WP7 and it worked perfect
I know it sounds stupid but don't judge it before trying it !!!!
If you try this pleas let me know if it works with your HD2 too
benrotti said:
After unplugging the phone turn the camera on and record for about 15 secs and your battery should last for about 2 days or longer. I tried it on 3 different HD2 with WP7 and it worked perfect
I know it sounds stupid but don't judge it before trying it !!!!
If you try this pleas let me know if it works with your HD2 too
Click to expand...
Click to collapse
Nice find!
It is known video trick.
Read this:
http://forum.xda-developers.com/showthread.php?t=1041912
reading, reading, reading......
ahuahuahu
nice to find that solution without help!
iba21 said:
ahuahuahu
nice to find that solution without help!
Click to expand...
Click to collapse
As always you are absolutly right!
Marche Sur Mon htc hd2 Rom XBmod 1.10 Stock.
Merci
Hi
I ask if i remove the battery or i charge the phone
should i make this again or not
thank you
hi
The trick works untill you reboot your phone or change battery.Then you have to do it once again.Thats it.
The only solution that worked for me amongst all the options (based on my experience)
1. Tried the camera trick - NOT WORKED
2. Followed the steps below - NOT WORKED
* Boot the phone to MAGLDR
* Select "Reset" option from the menu
* Phone reboots normally
3. Hard reset the phone - NOT WORKED
4. Charge the phone in magldr USB storage option - NOT WORKED
5. Finally, flashed the 2.12 radio, did the camera trick (not sure if its relevant). The battery life has improved dramatically. It lasts more than 24 hours and still running (26% left) - WORKED.
Follow the thread below to download the 2.12 radio
http://forum.xda-developers.com/showthread.php?t=930578
goldbeard said:
The only solution that worked for me amongst all the options (based on my experience)
1. Tried the camera trick - NOT WORKED
2. Followed the steps below - NOT WORKED
* Boot the phone to MAGLDR
* Select "Reset" option from the menu
* Phone reboots normally
3. Hard reset the phone - NOT WORKED
4. Charge the phone in magldr USB storage option - NOT WORKED
5. Finally, flashed the 2.12 radio, did the camera trick (not sure if its relevant). The battery life has improved dramatically. It lasts more than 24 hours and still running (26% left) - WORKED.
Follow the thread below to download the 2.12 radio
http://forum.xda-developers.com/showthread.php?t=930578
Click to expand...
Click to collapse
and battery drain with bluetooth on? can you check with battery tool please?
goldbeard said:
5. Finally, flashed the 2.12 radio, did the camera trick (not sure if its relevant). The battery life has improved dramatically. It lasts more than 24 hours and still running (26% left) - WORKED.
Click to expand...
Click to collapse
my experience not good with 2.12... draining battery is improved with 2.12 on my device.... in stand by battery drain is 40% in 6 hours... with 2.15 is much better for me...
Thanks OP, will try this.
I read that SD cards are the main cause of battery drain.
I have changed the radio from 2.15 ---> to 2.12 , Better sound better signal , Battery but we have for sure a bit of duration improvement not something extraordinary though .
BUT !!! i Have experienced something else.
I have bought a Chinese battery 1650 Mah and i left the battery drain completely.
(you need to be careful with that point cause after the windows will not start if no power !!!) and then the battery can charge (from the HTC official charger) only up to 60% and it lasts more than one 1 day simple doing nothing on the phone . With normal use lasts only max Half day.
But when i charge the phone to Pc or rapid travel charger the battery completes the full 100% capacity .I Believe that this has to do with the software & battery that do not recognize probably the full capacity,
Keep in mind that if the battery is charged up to 60% with the official charger I gain better duration than 100% charging from PC.
…still a big mystery the battery on mango !!!!
Thank you very very very very very very much i'm gonna try it
Good !!!!!!
Different radios never worked for me so I just stuck with 2.15.
Indeed hard to believe, but the video trick helped! Before the Battery was down in about 10 hours, now 8 hours passed and still 75% capacity. Thanks very much!
German HD2 from O2 with mango 8107.79, followed this thread installing it with xboxmods autoupdate. Great work, actually much easier than installing most commercial software packages! ;-)

HD2 7720 very bad battery life

OS: 7.10.7720.68
radio: 5.51T.09.29a_22.32.50.10U
Battery tool/Battery Current: - 138 !!!
Yuki back to the future rom.
My battery only last 10 hours standby! by end of the day, the battery is completely dead! Tried the camera trick, but this version of rom had green button mapped to voice dail so just went to camera tool, then go to video and
autofocus. Does not seems to help.
Anyone have solution? With this kind of battery life, I would have to revert back to wm6.5
kelingdun said:
OS: 7.10.7720.68
radio: 5.51T.09.29a_22.32.50.10U
Battery tool/Battery Current: - 138 !!!
Yuki back to the future rom.
My battery only last 10 hours standby! by end of the day, the battery is completely dead! Tried the camera trick, but this version of rom had green button mapped to voice dail so just went to camera tool, then go to video and
autofocus. Does not seems to help.
Anyone have solution? With this kind of battery life, I would have to revert back to wm6.5
Click to expand...
Click to collapse
Mine is the same way. Just a few minutes (10 to 15) doing things on mine from a fully charged battery and it goes down 20%.
I think it has more to do with magldr than the ROM, though. My other HD2 is using a cLK version of Tytung Android and it is the actual first Android build I've ever used that has acted like a stock ROM. The battery life is great and in standby it stays charged really well. Not so with the magldr version. In standby with the same ROM booted with magldr, the battery drops quickly.
There are people here experimenting with different radios to try and get the battery drain down. Both the hardware and software radios and different combinations of both.
As changing the hardware radio is easier at the moment than the software one (you have to re-flash and update to mango), you may want to try that.
Good luck
I have the same configuration but mine works fine (after doing the camera trick the battery last more than 24 hrs.). Maybe it is due to the battery lifetime, capability, quality or any other hardware issues.
i dont seam to recall haveing any battery issues on yuki v1 but after i update to v2 i strted experianceing fast battery drain auto focs trick with camira dosent seam to work ither i updated all the way to 7200 i was still not happy about the battery drain tehn i install teh device provisioning and isv beta clean up through zune hopeing to fix my batter issues it didnt i gave up then i wanted to get wireless radio and installed DEV_FM_ANTENNA_INTERNAL.cab and now its even worce i littery wach 17 hr's of battery life dran in 7 min's
11:58 pm
battery info
remaining batter life 100%
estimated time remaining 1 day 20 hours
time sence last charge :less than one hr's
this is my battery info in settings after just disconecting it!
12.00am
and as i wright this i just lost an hr and am down 99%
will edit post agin!
12.40
90%
estimated time remaining 1 day 7 hr's
i just lost 17 hr's in 40 min's
with both battery saveing options checked!
edit!
1.02 am
remaining batter life:82%
estimated time remaining:14 hr's
-------------------------------------------
i thought only people wear wrong not computers opps gess i was wrong because to me this seams like a fatel error!
the system menu is displaying faulse information
its one thang to have fast battery drain but for the system to display faulse info in the system settings and be totaly inacurate?
whats up with that?
Everytime you start the phone or after a reset, you have to do the camera trick.
Also, when you take a picture... before you shut down the camera, do the trick again.
After the MANGO installation, also download and install 2.12 Radio. That seems to be keeping the drain down a little. After I installed the 2.12 radio AND keeping an eye on the camera trick is done, the phone lasts for 1 day and 9 hours. (It's been 1 day and 10 hours now, 11% left...)
update 2.12 rom works!
update. I flashed with 2.12 rom, then did a factory reset, then camera trick.
Now 16 hours after the charge, made a few phone calls and some light internet surfing, I still have 48% battery. This is a remarkable contrast from yesterday. Don't know if this is due to 2.12 or the camera trick, but the combination of the two definitely worked. Now I ca keep my Mango
Thanks all for the help
kelingdun said:
update. I flashed with 2.12 rom, then did a factory reset, then camera trick.
Now 16 hours after the charge, made a few phone calls and some light internet surfing, I still have 48% battery. This is a remarkable contrast from yesterday. Don't know if this is due to 2.12 or the camera trick, but the combination of the two definitely worked. Now I ca keep my Mango
Thanks all for the help
Click to expand...
Click to collapse
I also flashed 2.12 earlier today and have just now done a reset (in the "About" menu) and am going to see if it helps with the BL. Mine was down to about 45% after just probably 3 or 4 hours...in standby. Not being used at all.
KrewsialNL said:
Everytime you start the phone or after a reset, you have to do the camera trick.
Also, when you take a picture... before you shut down the camera, do the trick again.
After the MANGO installation, also download and install 2.12 Radio. That seems to be keeping the drain down a little. After I installed the 2.12 radio AND keeping an eye on the camera trick is done, the phone lasts for 1 day and 9 hours. (It's been 1 day and 10 hours now, 11% left...)
Click to expand...
Click to collapse
Please can you explain what the "camera trick" is?
Skyjouby said:
Please can you explain what the "camera trick" is?
Click to expand...
Click to collapse
start camera, switch to video, exit from camera
dxdy said:
start camera, switch to video, exit from camera
Click to expand...
Click to collapse
Like this, but don't back out of the camera, tap the homescreen button. You want to leave the camera running in the background.
--------------------------------------------
Regarding flashing the 2.12 radio and then resetting it, something helped. I won't say flashing the 2.12 radio helped because I flashed it first and later I did the reset. My HD2 still drained faster than an old Chrysler sucking gas through a straw. But after the reset, it is still at about 85% since last evening about 8:30PM. It is currently 1:11PM the next day. So that gives me about 17 hours on this one charge. And no, I am not exaggerating. My previous post lists the time I flashed it to 2.12...actually before I made the post. And I just now took another look at it....about 5 minutes ago. It hasn't been used at all during that time period and, in fact, I haven't even set it up yet....no wifi, no syncing of any kind, not even signed into my account. After resetting it, I simply set it aside and did nothing with it. So lets see how it does after I begin using it again...syncing, turning on wireless and all.
My current is -318!!! And I only have 3G on. I tried the camera trich and it does nothing. Any other suggestions.
Robbie P said:
There are people here experimenting with different radios to try and get the battery drain down. Both the hardware and software radios and different combinations of both.
As changing the hardware radio is easier at the moment than the software one (you have to re-flash and update to mango), you may want to try that.
Good luck
Click to expand...
Click to collapse
Please can you explain how to change the radio without flashing new Mango?
mentjens said:
Please can you explain how to change the radio without flashing new Mango?
Click to expand...
Click to collapse
I'll help.
Put your HD2 in bootloader screen by powering off first, then press and hold the down-volume button and tap the power button. Hold the down-volume button till the red/green/white screen appears.
Then connect your HD2 to your PC and at the bottom is should say USB once Windows sees it.
Once you have the appropriate radio file downloaded and unzipped, open its folder and click the "LeoCustomRUU.exe" file. You may need to right-click and open it with "Run as Administrator".
Go through the checks and it will flash the radio. Once finished, disconnect your HD2 for your PC. It will reboot and your new radio is flashed.
Regarding the battery usage of my HD2 after a reset, I can report that I'm now seeing above normal battery life. Earlier today, around 1PM, I set up my HD2 and established all my accounts...3 email accounts, FB, Twitter with default syncing...and enabled wifi. All of the usual stuff I normally use except the installation of all my previous apps.
Currently the battery is exactly 70%, according to the built-in battery saver menu in the settings. It has not been charged since yesterday about 8:30PM. That's approaching 24 hours since a charge.
EDIT - I took a picture of the current battery condition. It shows time since last charge and time left on charge plus the current charge level.
MartyLK said:
Like this, but don't back out of the camera, tap the homescreen button. You want to leave the camera running in the background.
--------------------------------------------
Regarding flashing the 2.12 radio and then resetting it, something helped. I won't say flashing the 2.12 radio helped because I flashed it first and later I did the reset. My HD2 still drained faster than an old Chrysler sucking gas through a straw. But after the reset, it is still at about 85% since last evening about 8:30PM. It is currently 1:11PM the next day. So that gives me about 17 hours on this one charge. And no, I am not exaggerating. My previous post lists the time I flashed it to 2.12...actually before I made the post. And I just now took another look at it....about 5 minutes ago. It hasn't been used at all during that time period and, in fact, I haven't even set it up yet....no wifi, no syncing of any kind, not even signed into my account. After resetting it, I simply set it aside and did nothing with it. So lets see how it does after I begin using it again...syncing, turning on wireless and all.
Click to expand...
Click to collapse
MartyLK said:
Regarding the battery usage of my HD2 after a reset, I can report that I'm now seeing above normal battery life. Earlier today, around 1PM, I set up my HD2 and established all my accounts...3 email accounts, FB, Twitter with default syncing...and enabled wifi. All of the usual stuff I normally use except the installation of all my previous apps.
Currently the battery is exactly 70%, according to the built-in battery saver menu in the settings. It has not been charged since yesterday about 8:30PM. That's approaching 24 hours since a charge.
EDIT - I took a picture of the current battery condition. It shows time since last charge and time left on charge plus the current charge level.
Click to expand...
Click to collapse
When you speak abour reset, it is the"Parameter/About/reset"? To gain this autonomy you still use the "camera trick"?
Skyjouby said:
When you speak abour reset, it is the"Parameter/About/reset"? To gain this autonomy you still use the "camera trick"?
Click to expand...
Click to collapse
I have been using the camera trick, but I don't really have faith in it that it is doing anything useful. Once I see how far this first charge will go, I will do more experimenting like not using the camera trick. Right now I want to leave my HD2 exactly like it is...not using it, just leaving it in standby...till the battery dies out.
It's actually not all that good for standby battery life. Being in standby, it should last much longer than the projected 54 hours on this one charge. My iPhone will last longer than a week in standby. My Inspire and other HD2 with Android lasts about the same as this, though.
And the reset I speak of is in the "Settings" > "About" screen. At the bottom of the screen is the "reset your phone" rectangular box.
MartyLK said:
Regarding the battery usage of my HD2 after a reset, I can report that I'm now seeing above normal battery life. Earlier today, around 1PM, I set up my HD2 and established all my accounts...3 email accounts, FB, Twitter with default syncing...and enabled wifi. All of the usual stuff I normally use except the installation of all my previous apps.
Currently the battery is exactly 70%, according to the built-in battery saver menu in the settings. It has not been charged since yesterday about 8:30PM. That's approaching 24 hours since a charge.
EDIT - I took a picture of the current battery condition. It shows time since last charge and time left on charge plus the current charge level.
Click to expand...
Click to collapse
Damn, that's nice I manage 1 day and 18 hours on a full charge, according to the battery saver app. As soon as I go to work I use the internet a little (Twitter/Facebook/IE). By the time I get to the office (40 minutes), it dropped a good 30%.
When i'm not using the phone, it's good, 1% per hour or so. As soon as I start using it a little, it goes down like an elevator on meth.
What I also noticed, is that when the signal is not very good, the battery will drain up to 6/7% per 30 minutes... i have no idea what that's about.
update: the camera trick is spradic.not working no more im back to 10 a day standby. i will give up and flash back to andr9d this wkend
kelingdun said:
update: the camera trick is spradic.not working no more im back to 10 a day standby. i will give up and flash back to andr9d this wkend
Click to expand...
Click to collapse
And you have done a reset?

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