Database Users

very dead exec

Having not use my exec for a bout a month I now find it will not start or take a charge (battery has 3.8v ) but it will not power up ,it is still in warranty BUT I have changed the rom ,so don’t know if o2 will repair it
If I use the wall charger a LED flashes on for about 1 second ,if I plug in to usb lead on pc (with battery removed) red led comes on any ideas appreciated

towinguk said:
Having not use my exec for a bout a month I now find it will not start or take a charge (battery has 3.8v ) but it will not power up ,it is still in warranty BUT I have changed the rom ,so don’t know if o2 will repair it
If I use the wall charger a LED flashes on for about 1 second ,if I plug in to usb lead on pc (with battery removed) red led comes on any ideas appreciated
Click to expand...
Click to collapse
Problem indeed.... Firstly, I wish I could offer some constructive solutions, but afraid not.... it does sound like a worn battery, and maybe worth trying (or borrowing) another one to flash?
I take it as you refer to it as an 'Exec' that it is the O2 branded one? If it is, from my experience with the O2 technical support, they really don't have a clue. I would assume that they would send an exec straight to HTC for testing. It's a complete last resort, but if you were to tell them that your unit was dead and they were to take it in, they wouldn't be able to solve the problem before they sent it back to HTC. This is of course after you have clarified it's not just a dead battery cell.
Best of luck with the thread and hoping someone a bit more experienced can help.

So, let me get this straight, your universal does not turn on (and by turn on I mean that you see the familiar wm5 screen with your apps, etc.), no matter what have you done, and the only way to have the charging led on is by connecting it to USB port with the battery removed?
If this is the case, you might have a dead internal battery charging/power supply circuit, i have repaired some old Ipaqs with this failure, most of them failed due to a defective battery, easily recognized by overheating when the unit was placed in charge, usually the overheating increased slowly in time (months usually).
I don't want to be misunderstood, but all these devices have a way of turning of the LCD backlight, a long pressure on the on button does this, it can restores with the same long pressure, see if this is not your case.
If you have some electrical problem with your PDA you might take it to repair or you could try to do it yourself -if you're able to do it obviously-.
Anyway, try to get yourself another battery (you might ask for it to someone else with a uni), put it on and see.
I'm also assuming that you have tried to hard reset your device.
good luck

kecido said:
So, let me get this straight, your universal does not turn on (and by turn on I mean that you see the familiar wm5 screen with your apps, etc.), no matter what have you done, and the only way to have the charging led on is by connecting it to USB port with the battery remo....
good luck
Click to expand...
Click to collapse
Look maybe this will give you some hope. Yesterday I took my Htc Typhon (smartphone) after a long time, the battery was die. I tried to charge via usb, and nothings happened, then I tried to use a usb charger and nothing happened neither. Finally I charged the battery alone on an universal battery charger and after 30 minutes my phone was alive again.
Hope it will help you!
Felipe

kecido said:
So, let me get this straight, your universal does not turn on (and by turn on I mean that you see the familiar wm5 screen with your apps, etc.), no matter what have you done, and the only way to have the charging led on is by connecting it to USB port with the battery removed?
If this is the case, you might have a dead internal battery charging/power supply circuit, i have repaired some old Ipaqs with this failure, most of them failed due to a defective battery, easily recognized by overheating when the unit was placed in charge, usually the overheating increased slowly in time (months usually).
I don't want to be misunderstood, but all these devices have a way of turning of the LCD backlight, a long pressure on the on button does this, it can restores with the same long pressure, see if this is not your case.
If you have some electrical problem with your PDA you might take it to repair or you could try to do it yourself -if you're able to do it obviously-.
Anyway, try to get yourself another battery (you might ask for it to someone else with a uni), put it on and see.
I'm also assuming that you have tried to hard reset your device.
good luck
Click to expand...
Click to collapse
thanks for all the help
1 it will not turn or power ,no led no screen
2 battery dose get hot when charging
3 screen has not been dimmed
its back at o2 shop now we will see if they repair it and ill report back !!!!!!!!!

Grilloman said:
Look maybe this will give you some hope. Yesterday I took my Htc Typhon (smartphone) after a long time, the battery was die. I tried to charge via usb, and nothings happened, then I tried to use a usb charger and nothing happened neither. Finally I charged the battery alone on an universal battery charger and after 30 minutes my phone was alive again.
Hope it will help you!
Felipe
Click to expand...
Click to collapse
hi thanks for the reply i have had the same on a m600 ,would not charge from usb or car kit but did start with mains charger
i have tryed hard reset but it will not do that either
battery is stuck at 3.7v even after trying to discharge it with a small bulb
thanks
John...

This is something I've had happen in the past.
Try taking the battery out, and put it into a ziplock back, and place it in the freezer for a few hours. I know, I know, it sounds ridiculous. But sometimes, just sometimes, it will reactivate the cells, and you'll be able to charge it after that.

well done o2 uk
well as said before took my phone back to the O2 shop and sent it off to the service centre. The report came back that the main board US .not only did i get a new exec but But a new boxed one and a full set of all original parts !!

i had this problem when i first got my SPV m5000..i took it to the orange shop...(the people where nice) they kept it for few testing and said...
battary was faulty...so they gave me a new battery XD

help with battery power

Hello to you all,
My new XDA Exec has developed a fault. It works OK when plugged in to the USB on my laptop or charger but when running on battery will only do so for a short time. In fact a matter of a few minutes.
The battery indicator shows the battery at 100% when charged but the phone turns off variously at 95 - 98%. I tried a soft reset and not change.
I tried discharging the battery using small lamp then recharging in the phone. The battery indicator did show a lower %age 80 ish but not as low as I would have thought. Subsequent charging made no difference and the problem persists. Has anyone seen this before? Any bright suggestions?
Many thanks to you all for you time.
Cheers
Piran

Piran Bassett said:
Hello to you all,
My new XDA Exec has developed a fault. It works OK when plugged in to the USB on my laptop or charger but when running on battery will only do so for a short time. In fact a matter of a few minutes.
The battery indicator shows the battery at 100% when charged but the phone turns off variously at 95 - 98%. I tried a soft reset and not change.
I tried discharging the battery using small lamp then recharging in the phone. The battery indicator did show a lower %age 80 ish but not as low as I would have thought. Subsequent charging made no difference and the problem persists. Has anyone seen this before? Any bright suggestions?
Many thanks to you all for you time.
Cheers
Piran
Click to expand...
Click to collapse
You battery is dead therefore you would need to change. You are not unique with this problem. That is common issue for Universal (exec) batteries. For your new battery: dont charge with the USB cable and charge when is completely drained.

Hi Bulldog,
thanks for the reply and the info. Regarding charging the unit from the USB port. Does the unit not begin charging as soon as it's plugged in to a USB port? Is there a way to prevent this that you know of? My phone was normally charged for about half it's life from the charger, half from USB.
From what I understand the LI ion batteries don't have a charge memory due to milisecond pulse charging so pardon me for asking but what does the total discharge do for the battery? Obviously it does something but what? (Not doubting you but I'm curious). Is there a away to ressurect a defective battery such as the one I have currently or is it a lost cause. I know some batteries can improve with either heating or cooling by about 20 - 40°C from normal operating temeprature, have you any experience with this?
Do you know if some makes of batteries are better than others?
Please pardon the inquisition but as I spend a lot of time in remote areas it's often quite handy to be able to bodge rig stuff in order to effect a temporary fix and it seems any bits of knowledge help!
Once again many thanks
Piran

Piran Bassett said:
Hi Bulldog,
thanks for the reply and the info. Regarding charging the unit from the USB port. Does the unit not begin charging as soon as it's plugged in to a USB port? Is there a way to prevent this that you know of? My phone was normally charged for about half it's life from the charger, half from USB.
From what I understand the LI ion batteries don't have a charge memory due to milisecond pulse charging so pardon me for asking but what does the total discharge do for the battery? Obviously it does something but what? (Not doubting you but I'm curious). Is there a away to ressurect a defective battery such as the one I have currently or is it a lost cause. I know some batteries can improve with either heating or cooling by about 20 - 40°C from normal operating temeprature, have you any experience with this?
Do you know if some makes of batteries are better than others?
Please pardon the inquisition but as I spend a lot of time in remote areas it's often quite handy to be able to bodge rig stuff in order to effect a temporary fix and it seems any bits of knowledge help!
Once again many thanks
Piran
Click to expand...
Click to collapse
Hi, I have the exact same problem...works fine when usb or mains connected but only for a few minutes when on the battery. Usually when I give it some heavy task stuff it will suddenly just blank out the acreen and die.
I'm going to try and do what's suggested on the wiki page about masking off the charge indicator contact with tape - run the thing down and charge up again.
otherwise it's a new battery - not expensive - and plenty about on ebay.
fanger

Hi Piran,
Be Frank I am not battery specialist. Therefore I cant give a deep explanation what makes the Universal Battery having so many problems with USB charging. For my understanding it is the slow charge which leads to Battery overheat. Therefore All the post here regarding the Battery problems suggest not keeping the universal charged with USB. Just search for Post for "battery problems" and you will find few "explanations"
In Regards whether you could reverse your battery issue. From my previous experience I would say the max the you can get back is some 10-15%. However in your case the issue seams more severe as you device turns off by 90-100% therefore I think you would need to order new Battery.
following procedure I follow to drain my battery:
1) Turn off You Phone Radio (important)
2) disable the "Turn off Backlight" and put your device brightness to "full"
3) let your device drain the battery by him self( prevent doing anything with your device during this time. I found starting application, touching screen etc. leads that the device request a pick of power which the battery is not able to provide and turns the device off.
4) after certain time your battery will be to weak to keep the device on.
5) push the "power button + backlight button + reset pin" to put your device in to bootloader mode. (your screen will be almost off just some info like SERIAL or Bootloader Version will be visible)
6) again keep the device in this mode to drain as much you can until you cant see anything on the screen.
7) repeat this point6 few times as sometimes the device turns of but after trying again the button combination you can put it back to bootloader.
With above the aim is to drain the battery much as possible. After that you charge your device with power connection for min.12 hours. I guess you will gain few % however repeat the draining and charging procedure for next couple charging cycle to see how much max you will get back.
Good Luck.

I faced the same problem with my battery on Universal.
After a complete drain, the battery wont recharge:
1) Connecting the power cord it starts the boot process, after few seconds the power led ligths in red once, the screen blanks and the boot restarts again and again.
2) Using the usb cord the power led flashes in red without further actions.
I have to throw away the battery, I guess.
Thanks for any comment.

Cesare said:
I faced the same problem with my battery on Universal.
After a complete drain, the battery wont recharge:
1) Connecting the power cord it starts the boot process, after few seconds the power led ligths in red once, the screen blanks and the boot restarts again and again.
2) Using the usb cord the power led flashes in red without further actions.
I have to throw away the battery, I guess.
Thanks for any comment.
Click to expand...
Click to collapse
Cesare, One thing you could try before given up on your battery. Try to Use your power connection to charge for while before starting up your device.

How much is a new battery?

Bulldog said:
Cesare, One thing you could try before given up on your battery. Try to Use your power connection to charge for while before starting up your device.
Click to expand...
Click to collapse
Bulldog, many thanks for your replay.
When I connect the power cord the start up begins automatically.
There is a way to avoid the starting up?

Cesare said:
Bulldog, many thanks for your replay.
When I connect the power cord the start up begins automatically.
There is a way to avoid the starting up?
Click to expand...
Click to collapse
Cesare, you right when you plug in the device it will boot up. However after while (ca.10-15) when the first initialization complete you could go and switch off the screen(with power button) which takes allot power. Anyhow in your case it is really strange as your device behaves like it has no battery at all. there could be 2 things leading to that.
1) your battery is completely dead ( check with a voltmeter to confirm)
2) or something wrong with your Connection clips (battery and device) you could again check with a voltmeter whether you get any juice on those clips.

Bulldog said:
Cesare, you right when you plug in the device it will boot up. However after while (ca.10-15) when the first initialization complete you could go and switch off the screen(with power button) which takes allot power. Anyhow in your case it is really strange as your device behaves like it has no battery at all. there could be 2 things leading to that.
1) your battery is completely dead ( check with a voltmeter to confirm)
2) or something wrong with your Connection clips (battery and device) you could again check with a voltmeter whether you get any juice on those clips.
Click to expand...
Click to collapse
Hi Bulldog.
I think that the 1st one is the rigth hypothesis. I'll check with a voltmeter.
The connection clips are ok because the backup battery works perfectly.
To drain that battery I connected an optical usb mouse until the mouse ligth went off. Do you think that this action is the reason of the death?
Many thanks again

Cesare said:
Hi Bulldog.
I think that the 1st one is the rigth hypothesis. I'll check with a voltmeter.
The connection clips are ok because the backup battery works perfectly.
To drain that battery I connected an optical usb mouse until the mouse ligth went off. Do you think that this action is the reason of the death?
Many thanks again
Click to expand...
Click to collapse
Cesare, your battery my not complete dead but it is to weak to lighten up your Universal. Said that leads to bad thing which is: you can only start to charge battery when the universal has come out of bootloader mode.
I had such case ones, after not using my device for very long time the battery was completely drained, And as you described the device keep booting after plugging to the power. However after certain time ( I think some 15-30min trying) suddenly I was able to start up. I am not sure whether that would help to overcome the booting mode with less power but you could try to take out your sim card and memory card and try booting. ( again not sure it will help)

Guys - a quick update from my previous post.
I was suffering a sudden power outage at about 75%-85% battery power - just a blank screen - power gone. Didn't happen when mains connected, only on battery.
Well, first things first, I thought...dodgy ROM for WM 6 - so I tried a few of them - Ivans, Ranju's and Beastys - no change - still this power out.
Read the posts on this forum and thought - gotta be the battery's fried.
Sooo,
I ordered a new Genuine JasJar battery and installed it - (let it charge for 8 hours) - since then...no problems - no crashes, stalls or blank outs.
I'm running Ranju's 7.4 with spb pocket plus - htc home, etc,
As a point of interest my old battery stated 3.9Volts when I put my meter across it BUT - a voltmeter isn't drawing as much as the universal - when 'under load' from power intensive apps - hence you think you've got a battery putting out the requisite power when you haven't.
This was a real niggly problem to sort out with potential culprits all over the place:
Bad battery?
Bad ROM?
PCB crack?
Hardware Fault?
At the end of the day it's good to have spent £32 or so and simply got rid of the problem totally.
I'd say to anyone who's getting outs or blank outs at 80% power or below - your battery stuffed and no amount of mucking about with ROM swaps, Freezers, charging/ discharging is going to stop it blanking out on you.
I'd also like to say how appreciative I am of this forum with a great deal of knowledge available from so many users across a very broad spectrum of skills and experience. Nice one!
Hope this helps,
fanger

Charging stuck at 70%,PLS HELP

Guys pls help..I have this problem,that when I'm charging my trinity,it couldn't reach 100% of charging (full charge) instead was stuck to 70%.eventhough i charge it overnight.I'm thinking if it is a battery prob or the charger. i am using the originally supplied charger & battery.
Thanks in advance...

Have you tried powering the unit off, removing the battery for, say, 15 seconds, then refitting it and rebooting?... Check the battery level after reboot?... Then retry charging again?...
Maybe a full discharge might help "reset" the above problem too?...
I'm not sure, but I think the Trinity battery management is quite dependant on so called "coulomb counting" and I reckon sometimes it goes a bit wrong.

LoopyLoo said:
Have you tried powering the unit off, removing the battery for, say, 15 seconds, then refitting it and rebooting?... Check the battery level after reboot?... Then retry charging again?...
Maybe a full discharge might help "reset" the above problem too?...
I'm not sure, but I think the Trinity battery management is quite dependant on so called "coulomb counting" and I reckon sometimes it goes a bit wrong.
Click to expand...
Click to collapse
i tried all your suggestion bro,after rebooting,the battery meter increased 10%,tried to recharge,but still can't reach full.i tried to turn off my device then charge it,this time it goes upto 90%.it's a good sign but,charging while my phone is turned on is better right?i have no computer around,maybe i'll try to charge thru USB later..if it went ok,maybe i'll buy a new charger..thanx loopyloo for that sound advice..

tranquil20 said:
i tried all your suggestion bro,after rebooting,the battery meter increased 10%,tried to recharge,but still can't reach full.i tried to turn off my device then charge it,this time it goes upto 90%.it's a good sign but,charging while my phone is turned on is better right?i have no computer around,maybe i'll try to charge thru USB later..if it went ok,maybe i'll buy a new charger..thanx loopyloo for that sound advice..
Click to expand...
Click to collapse
Try battery callibration procedure!

The actual standalone charger (if that's what you're referring to) has no intelligence in it to speak of. Battery charge monitoring/status will be an integral function to the phone itself using dedicated h/w.
Something's not quite right with your kit somehow. Maybe the battery has gone a bit wrong (could be replaced - how much use has it had?)... Rather that than the phone itself, in which case it'll need repair.
You can try tnyynt's suggestion of Battery Calibration. Basically this requires you to totally discharge the battery (I suggest thru normal use of your phone!) then when it shuts down "cos battery is flat" reboot the phone into its bootloader screen (power down, then press and hold Power & Camera buttons until Tri-colour screen is displayed)... Then just leave the phone until it powers off of its own accord.
This may take a few hours (I did mine recently and it took @4hrs!) but the battery should be as discharged as its possible to get by that point...
And if you're lucky, it might just sort your problem out when you next recharge!
Good luck dude!!!
;-)
LL

tnyynt said:
Try battery callibration procedure!
Click to expand...
Click to collapse
i tried to use charging thru pc and it charged 100%,but again,as i tried to charge using a friend's htc charger,still stuck at 70% charging...will try this battery callibration procedure tnyynt,thanx 4 the suggestion..

LoopyLoo said:
The actual standalone charger (if that's what you're referring to) has no intelligence in it to speak of. Battery charge monitoring/status will be an integral function to the phone itself using dedicated h/w.
Something's not quite right with your kit somehow. Maybe the battery has gone a bit wrong (could be replaced - how much use has it had?)... Rather that than the phone itself, in which case it'll need repair.
You can try tnyynt's suggestion of Battery Calibration. Basically this requires you to totally discharge the battery (I suggest thru normal use of your phone!) then when it shuts down "cos battery is flat" reboot the phone into its bootloader screen (power down, then press and hold Power & Camera buttons until Tri-colour screen is displayed)... Then just leave the phone until it powers off of its own accord.
This may take a few hours (I did mine recently and it took @4hrs!) but the battery should be as discharged as its possible to get by that point...
And if you're lucky, it might just sort your problem out when you next recharge!
Good luck dude!!!
;-)
LL
Click to expand...
Click to collapse
thanx again LoopyLoo,you made this procedure (battery callibration) clear to me,on how to do it.will try this procedure and will report asap the result.hope it works (fingers crossed),and hope it's not an internal phone prob.
Thanx Bro!!:>

Let me know how you get on.
I'm a little baffled as to why you have problems with your friends charge too but not USB???...

battery callibration not worked...
I'm sorry to report that after 3 times of trying the battery callibration method,my trinity still doesn't reach its 100% capacity of charging thru the standalone charger..but mysteriously charge a 100% with USB charging..I'm still not really sure why this happened..maybe will try to see a mobile technician for PPC..anyways,thanx for all your suggestion..will report ASAP after going to a service center..

Wizard wont show charge.... Help

After 2 oem batteries and 2 extended batteries, Im very confused as to whats going on. It will turn on fine, and it will even charge the battery, but once it hits 100% the wizard will restart and it will show battery level as zero and shutdown. I thought mabey it wasnt charging but it will let me install roms and i can restart it as much as i want. Thanks for looking!!!!

One thing i forgot...
I can also get it running by running wires from it to another phone battery ( i was trying to use it to replace my blackjack2) and by taking the 3.3volt power adapter route, i can even get it to start charging. but it will either cut off at 99% and reboot saying dead battery or take the battery out adn put it in to get 0%.

Update.... Not that anyone is reading lol
Ok, Ive made a little more progress today. Using sketchy methods, 3.3v adapter wires between phone and battery, i got it to charge whil on usb with computer to 100% today without shutting off ( a first since before flashed). Once I removed it from usb thou, the battery bar went immediatly down to 50%. I charged it to 100% percent again, but once i dosconected it, the battery level would decrese almost as if the gague were a countdown clock. I tried doing the powersave registry edit posted in these forums, but the phone showed 0% charger after the soft reset and promptly died again.... I just put in the other extended battery i pulled from a nap in the freezer, and if i ever find a solution i will post it... thanks to whoever is looking for looking!!!

[email protected] said:
I can also get it running by running wires from it to another phone battery ( i was trying to use it to replace my blackjack2) and by taking the 3.3volt power adapter route, i can even get it to start charging. but it will either cut off at 99% and reboot saying dead battery or take the battery out adn put it in to get 0%.
Click to expand...
Click to collapse
[email protected] said:
After 2 oem batteries and 2 extended batteries, Im very confused as to whats going on. It will turn on fine, and it will even charge the battery, but once it hits 100% the wizard will restart and it will show battery level as zero and shutdown. I thought mabey it wasnt charging but it will let me install roms and i can restart it as much as i want. Thanks for looking!!!!
Click to expand...
Click to collapse
[email protected] said:
Ok, Ive made a little more progress today. Using sketchy methods, 3.3v adapter wires between phone and battery, i got it to charge whil on usb with computer to 100% today without shutting off ( a first since before flashed). Once I removed it from usb thou, the battery bar went immediatly down to 50%. I charged it to 100% percent again, but once i dosconected it, the battery level would decrese almost as if the gague were a countdown clock. I tried doing the powersave registry edit posted in these forums, but the phone showed 0% charger after the soft reset and promptly died again.... I just put in the other extended battery i pulled from a nap in the freezer, and if i ever find a solution i will post it... thanks to whoever is looking for looking!!!
Click to expand...
Click to collapse
to me i looks like a short in the main bored hit me up on aim

Another update...
Ok. Still freezing battery and such. But today i finally got around to dissasembly and everything on the inside seemed fine to the unexperienced eye. the water sticker was ok, no clearly visable burn marks. It was a little dirty, but nothing that should cause this type of error. I did notice some weird things, but im not sure if thats just wizard guts or if its something to be concerned about. Hopefull I'll be able to get some guidance on this, i really hate missing calls on Crapjack2

This is getting expensive.....
So, I bought a battery charger and after rigging it with some wire to charge my extended battery(s), it shows the battery being charged and will run like normall... except i cant charge the batteries in phone..... so yeah... Im waiting on an oem wall charger in the mail, but im still open to the fried main board. I just need to know a little more before i start spending more money lol
edit: oh also, im only really charging it by usb whenever i attempt at internally charging the battery. Occasionally i borrow my cousin's kaiser wall charger, but i dont have mine yet

[Q] After several cycles on WP7 HD2 won't charge

After several cycles on WP7 the batt was fully drained and now it won't charge (charge LED goes on for few seconds and then goes off). It won't load either, just switches off on DFT screen. Batt is standard.
Guess it is critical not to allow batt to drain fully on WP7?
Is there any solution to this?
Thanks for any ideas.

Had a similar problem with Android...battery drained completely and wouldn't charge. I solved it by cutting the end off of a spare USB cable, removing the battery, and charging directly from the cable (red wire to positive/black to negative). After about twenty minutes I put the battery back in the phone and it booted Right up. Or, if you have more sense than me, you could just pick up an external battery charger...I'm just the hack apart a cable and do it caveman kinda Guy...
Sent from my HTC HD2 using XDA App

I can confirm a similar experience; I thought it was worth trying the fully-drain-then-fully-recharge regime suggested elsewhere on these forums as a means of extending battery life, which does struggle a bit on WP7.
The fully discharge bit was easy, but it is worth everyone bearing in mind that magldr - as advised, I believe - will not allow the phone to charge. As a result, I was getting into WP7 (just) only for it to almost immediately shut down. But it was at least doing a small amount of charging before it did.
After a sweaty fifteen minutes or so of restarts (I was having to take the battery out to force the restart as it wouldn't start on the power button), it decided it had enough charge to...well, charge and all was well.
My suggestion would be not to risk going beyond the critical warning WP7 gives, at least until magldr is able to offer charging.

Almost the same issue here, without having let the battery fully drained...
I can't charge my hd2 anymore.....if it's turned off.
But, it Can be charged if wp7 is running! I don't know why...
I had This issue when I received the phone. It took me a whole Day to charge the battery the first time : orange LED turning off after 10seconds (HD2 switched off or in wm6.5
Once the led is off, can't turn the phone on or charge it again until I remove and put the battery back.
It was in summer so I thought the phone was too hot, so I cooled the battery with a fan, replaced it, retryed... At least 10times, and it finally charged.
SO weird, I'll test This again with wp7, who knows?

I am wondering whether it is some kind of magldr bug?
I'll try the trick with the cable directly to the batt. It is not very practical though if you drain your batt, where there is no access to spare cabling.

bdkinney said:
Had a similar problem with Android...battery drained completely and wouldn't charge. I solved it by cutting the end off of a spare USB cable, removing the battery, and charging directly from the cable (red wire to positive/black to negative). After about twenty minutes I put the battery back in the phone and it booted Right up. Or, if you have more sense than me, you could just pick up an external battery charger...I'm just the hack apart a cable and do it caveman kinda Guy...
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
This should be put into the sticky rollup thread for people who have let their batteries drain.
Why dont you do some pics bud and create a topic?

I am cutting the cable as I write. Will take some pics.

If your battery drains completely, just remove it, replace it back. Without starting the phone, connect it to your PC. start and enter the bootloader. You'll be then able to charge. I did it like that last week.
Sent from my HD7 using Board Express

Running cable directly to the batt is confirmed to work. Just revived mine with this trick.

jemaho said:
If your battery drains completely, just remove it, replace it back. Without starting the phone, connect it to your PC. start and enter the bootloader. You'll be then able to charge. I did it like that last week.
Click to expand...
Click to collapse
How do you enter the bootloader, if the phone is not responsive at all?

adminlt said:
I am wondering whether it is some kind of magldr bug?
Click to expand...
Click to collapse
Less of a bug and more of an unwanted side-effect of having this excellent capability, I think. I seem to recall that the developers are aware and looking to see what can be done.
adminlt said:
How do you enter the bootloader, if the phone is not responsive at all?
Click to expand...
Click to collapse
I guess it is possible to completely drain the battery, in which case this won't work. But if there is some power, removing the battery and replacing it should kick the phone into life for long enough to do this. This was going to be my first try if persistent rebooting hadn't eventually worked.

having this problem and definitely charging below the amount...
i cant fully charge the battery as well

Like I said, if connected, but not started, to your computer, you'll have enuff time to start it then and entering the bootloader, of course, you gotta be quick for this to work.
If it doesn't respond, don't laugh, confirmed to work, remove your battery like explained and put it for some mins in the fridge before replacing it (it's only chemistry playing here, somehow better than cutting a USB cable in 2).

jemaho said:
Like I said, if connected, but not started, to your computer, you'll have enuff time to start it then and entering the bootloader, of course, you gotta be quick for this to work.
If it doesn't respond, don't laugh, confirmed to work, remove your battery like explained and put it for some mins in the fridge before replacing it (it's only chemistry playing here, somehow better than cutting a USB cable in 2).
Click to expand...
Click to collapse
You know nothing about chemistry at all! Cold kills battery charge if your going to use temperature use your armpit for 5 mins!

double post oops please delete

lilikin said:
double post oops please delete
Click to expand...
Click to collapse
"storing them in the freezer might be more practical. These kinds of batteries lose their charge after a few days when kept at room temperature. But they'll retain a 90% charge for months if you store them in the freezer. Just like alkaline batteries, you'll need to wait until they've warmed up before using them. However, this isn't a problem when you need new batteries for your digital camera or other electronic gadget. "
I suggest you to be more polite when answering and learn your lessons before posting!

I finally made a dual boot Android/WP7.
At first, Android said my battery was fully charged, just like WP7, which is totally impossible as I used MAGLDR to format the SD card (wp7 & android partitions) and that it took me almost 1hour, without any possible way to charge the battery while I'm in bootloader mode.
But when I turned the phone off, plugged into the wall.......TADAA It was finally charging, with phone turned off
So, it seems that dual boot may be a way to solve this issue

jemaho said:
"storing them in the freezer might be more practical. These kinds of batteries lose their charge after a few days when kept at room temperature. But they'll retain a 90% charge for months if you store them in the freezer. Just like alkaline batteries, you'll need to wait until they've warmed up before using them. However, this isn't a problem when you need new batteries for your digital camera or other electronic gadget. "
I suggest you to be more polite when answering and learn your lessons before posting!
Click to expand...
Click to collapse
You're arguing against yourself here aren't you? Cold may be fine for storage but you need heat to coax a little more power out. You even say 'you need to wait until they've warmed up before using them'.

adminlt said:
I am cutting the cable as I write. Will take some pics.
Click to expand...
Click to collapse
If you could do some pics that would be great...I have two, "My computer's broken," calls to deal with today. Visuals might help some...it's appreciated.

Wrong idea, sorry guys.
I thought that HD2 was charging since I installed WP7 and Android in Dual Boot. But it's a fake : if the phone is turned off, and that I plug it, the orange led turns on. But that's all, even if I unplug the phone, the led remains turned on !!
And now, Android as well as WP7 are telling me that the battery is fully charged but I'm sure it's not even 50% full.