Database Users

Battery Charging Problem

If I let the battery on my Wizard run down completely, I can't get it to recharge, either with a wall charger or USB charge/sync cable. I have to replace the battery. Is there a way to jump-start the charging process?
After I put in the new battery I can't even get the Wizard to boot up. I have to reflash with the provider ROM and then flash with my desired ROM. I know I shouldn't let the battery run down, but I have several Wizards that I alternately use, and unused, the battery runs down and then the Wizard won't restart and the battery won't recharge.

Been there!
I solved this problem by buying an extra battery, which I keep with me, fully charged in my laptop case. As far as the wizard goes, it will only charge the battery if the operating system is booted and operational. I was lucky to find a site with a whole group of people who had the same problem and came up with a solution that is crude, but it works. Take a usb to mini usb cable and cut the mini end off. Strip the black and red wires, plug it into your laptop or desktop usb port and touch the black to the negative terminal of your battery and the red to the positive. Hold them in place for about 20-30 seconds, place the battery back in the phone and it should boot and then charge normally. Somewhere on this site you will find this information and a couple of posts from people who used basically the same tehnique with a nine volt battery. I can tell you the usb cable trick works, but I haven,t tried the battery approach.
Good Luck!

Could someone assist me please

My jasjar shutdown after the battery was drained from normal use. So I tried to plug it into the USB port to charge. Well the amber light did not come on. So I tried to unplug and plug in again. Nothing. So I tried to charge from the lighter adapter, still nothing. I do not have a wall adapter.
So I purchased a new battery, and inserted into my jasjar and plugged up to the USB port. Well now I get a flashing red instead of amber.
Well at this point and reading on this forum I decided to hard reset and reload the OS thinking the current one was corrupt. Well the hard reset didnt work using my USB. So I tried it while plugged up in my car and I got the menu and selected 0 to reset. But it showed clearing and then shut off. I called PPC Tech and they told me that it was all corrupt.
So I cant connect via USB so how do I get an OS on my unit. Is there another way to do this.
If anyone could help I would appreciate it.
Regards
Julian

You should see if you can enter in boot loader mode (search for all the procedures in the wiki).
If it does not enter into boot loader, then you will have to "unblock" it manually, this procedure involves some communication with the PDA directly with MTTY, again, search for this procedure in the forum/wiki, also search for the mamaich method if the things get tough, do not panic, it's usually feasible to recover your PDA.
Be patient and read, then if you have doubts, ask a more specific question, then the people who knows will usually answer you.
cheers

Thanks kecido for the reply,
Yes I can enter bootloader mode but only using car adapter. All my batteries are uncharged and I do not have a way to charge.
I do not have a way to get a USB connection to my device. For some reason nothing works with USB connection. I can only get the 2 boot screen methods by using car adapter.
I have tried 2 different USB cables, maybe I should try another.
Again thanks

you should just buy a wall charger from here http://www.buybits.com/product/sku_bb-world-charger-htc-universal.aspx
or even buy a cradle charger that can charger an extra battery as i doubt the universal will charge the battery without windows being booted (very stupid idea that). If you cant fix it can i buy the lcd cable from you As i have a universal that works but my backlight is broken

Well Im not ready to give up just yet. Somehow I have to get a battery charged, and proceed with the process.
Regards

Im still needing help
is there anyone that could assist me please. Im not sure what to do now.

So your device is not dead, well, then it should be easy, you just have to recharge one of your batteries out of the PDA, many sellers in Ebay (most of them from Asia) sell the batteries with an external charger, this could be a way of charging your battery without the PDA, you can also charge the battery with any external charger for Lithium batteries (i.e. a cellular external battery charger), you could even charge the battery with an old cell phone (it has to have a Lithium battery), all that you need is to take the positive and negative poles from the phone to the battery, it could take more time than with your PDA, but it will work.
You could also attach your PDA to an external power supply, you should give him 3.7V and at least 1A through the battery's contacts (not the USB connector that is disabled when you upgrade the rom), the power supply MUST have a voltage regulator in order to keep the voltage constant, if you're not sure about this, or if you don't have the necessary equipment, try the other two solutions to get your battery charger and being able to reflash your device.
I'm out of my work (another continent) and will not return until mid april, i do not remember the circuit well, but there I have a very simple one to recharge lithium batteries, but this requires electronic assembly, if you have the skills, you might search the internet for a Lithium battery charger.
bye

[Q] dead battery help!

Hi guys, in need of a bit of help here.
right, having not realised what i had done, i pulled the battery whilst on charge before i pulled the charger. my current situation is that now the phone is stuck on the loading bit. the version of android i have comes up with "droid" then goes to a red eye like thingy whilst loading. it keeps looping that screen over and over.
after a quick search i saw my problem could have been bent battery connector pins, but alas they are fine.
after another search i reasised what i had done (or at least what i think i have done). would i be right in thinking that the battery now does not have enough power to boot android and get to a point where it can charge the battery?
having seen the threads on here about using a USB lead to manually charge the battery i am at my wits end. i tried the USB fix and it didnt work.
i have now found this thread: http://forum.xda-developers.com/showthread.php?t=978101
and am currently attempting to charge my phone using the "USB mass storage" setting on MAGLDR (v1.13 btw) but the bit that im wondering is the bit that says "you will NOT get a charging indicator in this mode"
does any one know for sure whether this is true? i am hoping that the thread is correct my only doubt has arisen due to the fact that the thread was based on a HD2 running WP7.
thanks in advance for any help
Ben

Try to measure voltage at pin +/- on battery. If there is more than 3,6V battery is able to boot up the phone if voltage is belov 3V it's bad. If You have an adjustable (for laboratory use) voltage source, connect it to pins of phone vhere normally must be connected +/- leads of battery (carefully check polarity), give it 3,7V and try to load the bootloaderon the phone (hold Vol.Down butt and power button together). If it doesn't work, you may have ruined the bootloader.

I read some of the thread you linked. There is something that I think the OP of that thread and a whole lot of people using MAGLDR do not understand. I qoute this straight from the OP of the MAGLDR thread.
*Fixed Power-Off-Cable-Plug-Stop. Phone now detects this situation and reboots. Battery controller inside LEO needs runtime control during charge, it implemented in OS.
Click to expand...
Click to collapse
You have to have a functional OS installed for you to even be able to charge your battery using your HD2 when you have MAGLDR installed on your HD2. The simple fact that the OP of that thred has a WP7 ROM installed on their HD2 is the only reason option #4 USB Mass Stg even will slightly charge the battery, if it was no ROM on the phone, just MAGLDR, it will not charge at all just as when you are in bootloader and the USB connected it will not charge no matter if you have a ROM on the phone or not. I personally think the slight charge you get by using option #4 USB Mass Stg in MAGLDR is purely accidental and only a small amount of voltage as it takes so long to get any kind of substantial charge. Also if you have a completly dead battery you can not even boot into MAGLDR to try to charge using opyion #4 of MAGLDR.
I am a electrician and have been for a little over 15 years and in my oppinion if you have a dead battery and you are running Android from NAND or a WP7 ROM using MAGLDR. Your best bet is to use.
A: A external charging cradle.
B: Another HD2 that is running Win Mo.
C: Using a modified USN cable to get enough charge to boot into your ROM
Note: The last option I listed is only in a emergency situation as I do not advice you use this as a everyday charging technic. Also only long enough to boot your phone so you can finish charging normally. If you do use this option maintain a constant watch of the battery to insure it does not start to become warm, and only use your wall charger when using this method. The voltage is very low that the wall charger sends though the witres so there is no danger of shock.

Do You mean that when HD2 is POWER OFF state it doesn't charge battery? Even from wall charger? Mine does charging pretty well when turned OFF...
All phones I repaired or dizassembled had hardware automatic for charging battery, not depending of ROM or OS at all, it must have only 5V at charger inlet (USB or dedicated charger port i.e. for NOKIA), I doubt if HTC gone other way that all other developers
C: Using a modified USN cable to get enough charge to boot into your ROM
Click to expand...
Click to collapse
Can You tell me more about this cable? Any schematics?

pvii said:
Do You mean that when HD2 is POWER OFF state it doesn't charge battery? Even from wall charger? Mine does charging pretty well when turned OFF...
All phones I repaired or dizassembled had hardware automatic for charging battery, not depending of ROM or OS at all, it must have only 5V at charger inlet (USB or dedicated charger port i.e. for NOKIA), I doubt if HTC gone other way that all other developers
Can You tell me more about this cable? Any schematics?
Click to expand...
Click to collapse
Yes a HD2 can charge in a powered off state if you are still running a Windows Mobile ROM on it. If you have flashed MAGLDR to your HD2 you will not be able to charge your HD2 until you flash a Android or WP7 ROM to it as the charging is to quote the OP of the MAGLDR thread again, "Battery controller inside LEO needs runtime control during charge, it implemented in OS."
As for as a schematic no real need for a schematic. You take and cut the end off of a USB cable, the end you leave on needs to bt a standard USB male end. Next you strip back the outer insulation and the inner foil layer, then strip a little off the ends of the black and red wires. Finally connect the red wire to the positive terminal of the battery (marked on the battery), and connect the black wire to the negative terminal on the battery (marked on battery) and plug the USB male end of the cable into your wall charger, not any other power source. Yopui can use some tape to keep the ends connected to the battery.

T-Macgnolia said:
As for as a schematic no real need for a schematic. You take and cut the end off of a USB cable, the end you leave on needs to bt a standard USB male end. Next you strip back the outer insulation and the inner foil layer, then strip a little off the ends of the black and red wires. Finally connect the red wire to the positive terminal of the battery (marked on the battery), and connect the black wire to the negative terminal on the battery (marked on battery) and plug the USB male end of the cable into your wall charger, not any other power source. Yopui can use some tape to keep the ends connected to the battery.
Click to expand...
Click to collapse
You tried this even one time???
NEVER DO THAT, YOU WILL RUIN YOUR Li-ION BATTERY!!!!
Li-ION charges at no more that 4,2V, internal protection circuit will shut it off if you get it to 5V charger directly and if this protection accidentally will not work your battery blows up! 5V must be applied to USB port ONLY if you want your battery and phone alive

unfortunately i dont have a way of measuring the voltage of the battery, i have now just bitten the bullet and ordered another battery and an external charger. that way if the battery i have now is dead i have a replacment and if it just needs charging then ill have two batteries. having tried the USB cable charging bodge and it not work im thinking i have killed the battery. i use LiPo batteries in my airsoft stuff so i know that they can die if not treated properly. my own silly fault i guess haha.
ill update tomorrow once the charger and battery have arrived.
what do you guys think will be wrong with it if a new full charged battery doesnt work?

airsoft_ben_1989 said:
unfortunately i dont have a way of measuring the voltage of the battery, i have now just bitten the bullet and ordered another battery and an external charger. that way if the battery i have now is dead i have a replacment and if it just needs charging then ill have two batteries. having tried the USB cable charging bodge and it not work im thinking i have killed the battery. i use LiPo batteries in my airsoft stuff so i know that they can die if not treated properly. my own silly fault i guess haha.
ill update tomorrow once the charger and battery have arrived.
what do you guys think will be wrong with it if a new full charged battery doesnt work?
Click to expand...
Click to collapse
If your new battery wont work than you probably may have a dead charging circuitry on your mainboard (sudden death when removing a battery during charging process) and if that circuit works only under OS control, IMHO your mainboard is useless too. Have to be replaced or repaired.

fair enough, thanks mate. fingers crossed for tomorrow the hehe

pvii said:
You tried this even one time???
NEVER DO THAT, YOU WILL RUIN YOUR Li-ION BATTERY!!!!
Li-ION charges at no more that 4,2V, internal protection circuit will shut it off if you get it to 5V charger directly and if this protection accidentally will not work your battery blows up! 5V must be applied to USB port ONLY if you want your battery and phone alive
Click to expand...
Click to collapse
I have not personally tried charging a my battery this way bit I know several people on her that have and it does charge the battery. If it did not work for the OP of this thread than they either did not have a good connection between the wires or the battery is not chargeable anymore.
Look at your wall charger it should say on your wall charger that the output is 5.0 v or 5.1 v. This is pretty much a standard on all wall chargers for phones as they all require the same voltage. Yes there is a protection system that monitors the charging voltage and if you use the modified cable to charge you do not have this protection system. But your wall charger unless the small transformer in the actual plug part that is the charger malfunctions will only put out 5v, actually it will probably be more like 3.5v as the 5v is Max output capacity. Also if the transformer malfunctions it is just going to melt down and not put out a charge what so ever, it will not cause a spike in voltage. Trust me on this one, my job requers I have a full understanding of transformers be it a big one are a little one as I have to work with them all of the time. But I did put my warning in there for a reason as this can kill the battery where it can no longer charge, and even though it is menamal it is a small risk of the battery exploding, but it is a very small risk.

pvii said:
You tried this even one time???
NEVER DO THAT, YOU WILL RUIN YOUR Li-ION BATTERY!!!!
Li-ION charges at no more that 4,2V, internal protection circuit will shut it off if you get it to 5V charger directly and if this protection accidentally will not work your battery blows up! 5V must be applied to USB port ONLY if you want your battery and phone alive
Click to expand...
Click to collapse
Just for info I've done this twice, once thru wall once thru usb slot. It only needs about 45 seconds to get enough charge to start booting, and charging starts about halfway through the boot.
you are right that it isn't recommended, of course, but then most of what goes on on this site isn't recommended for a healthy phone

T-Macgnolia said:
I have not personally tried charging a my battery this way bit I know several people on her that have and it does charge the battery. If it did not work for the OP of this thread than they either did not have a good connection between the wires or the battery is not chargeable anymore.
Look at your wall charger it should say on your wall charger that the output is 5.0 v or 5.1 v. This is pretty much a standard on all wall chargers for phones as they all require the same voltage. Yes there is a protection system that monitors the charging voltage and if you use the modified cable to charge you do not have this protection system. But your wall charger unless the small transformer in the actual plug part that is the charger malfunctions will only put out 5v, actually it will probably be more like 3.5v as the 5v is Max output capacity. Also if the transformer malfunctions it is just going to melt down and not put out a charge what so ever, it will not cause a spike in voltage. Trust me on this one, my job requers I have a full understanding of transformers be it a big one are a little one as I have to work with them all of the time. But I did put my warning in there for a reason as this can kill the battery where it can no longer charge, and even though it is menamal it is a small risk of the battery exploding, but it is a very small risk.
Click to expand...
Click to collapse
Man, I do not intend to start a holy-war about it
It's a little off-topic, but seems that you do not have idea how these power stage of mobile devises works (from wall outlet to battery), all mobile devices are very similar in this aspect, simply google what is Li-Ion battery advisor, how it works and rules of charging Li-ion batteries, there are a huge bunch of forums specially dedicated to this theme...

pvii said:
Man, I do not intend to start a holy-war about it
It's a little off-topic, but seems that you do not have idea how these power stage of mobile devises works (from wall outlet to battery), all mobile devices are very similar in this aspect, simply google what is Li-Ion battery advisor, how it works and rules of charging Li-ion batteries, there are a huge bunch of forums specially dedicated to this theme...
Click to expand...
Click to collapse
Ok first of I am not madd by no means, and no it is not off topic as people need to be able to know these things. As I have seen in a couple of XDA members signatures "I am learning from you, and you are learning from me."
I Googled the Li-Ion battery advisor and found the PDF I think you were talking about as it was the first two links Google pulled up. But I have to tell you what is discussed in that PDF is on Li-ion batteries for vehicles not cell phones. Those batteries are much large and there for data in that PDF can not necessarily by applied to cell phone LI-ion batteries, unless you care to educate me further.
Like I said I have been a electrician for going on 15 years now, I know how to read electrical schematics, I know how electricity flows, I know about positive and negative charges, I know a lot I will just put it that way. If you have further links YOU would like me to check out I will be glad to. But from my prospective what I mentioned as a emergency charging method is no more dangerous than shaving with a disposable razor.

right so the new battery doesnt work, charged it in the external charger and nothing. same as before just looping on the Droid boot up screen.
would it be worth flashing back to WM6.5 as a last resort?

airsoft_ben_1989 said:
right so the new battery doesnt work, charged it in the external charger and nothing. same as before just looping on the Droid boot up screen.
would it be worth flashing back to WM6.5 as a last resort?
Click to expand...
Click to collapse
Any photos of boot screen?
Try to flash back to older official WM ROM with regular SPL (flash from SD card not thru PC sink), else HSPL and that custom bot manager wont be erased from NAND. May be it will help You, I used this method when my touch stopped responding and it was a solution for me.

pvii said:
Any photos of boot screen?
Try to flash back to older official WM ROM with regular SPL (flash from SD card not thru PC sink), else HSPL and that custom bot manager wont be erased from NAND. May be it will help You, I used this method when my touch stopped responding and it was a solution for me.
Click to expand...
Click to collapse
You are correct to tell the OP to flash via SD card or they would still have HSPL. but the custum boot manager as you called it is actually a custom bootloader. And if you flash a Windows Mobile ROM be it custom or official through RUU or SD card it is gone. MAGLDR or cLK bootloader run in sesession of the original bootloader meanning you never lose the original boot loader( if you did you would have a bricked phone) and that it is not in the same partition of the NAND memory as the original bootloader. MAGLDR, CLK, AND CWM are in the same partition as the OS, therefore when you flash back to a Win Mo ROM you lose them.
HSPL would not have anything to do with the OP's problem as it is part of the original bootloader and the two main purposes for HSPL is to one beablecto flash a official ROM that is not meant for your HD2 without having to use a gold card, and to disable the CID check so you can flash custom firmware.
At the OP have you had a look at your battery pins to make sure they are all in properly aligned with each other and that one is not bent?

[Q] Defy reboots after plugging in usb

I recently flashed my Defy with 3.4.2-179-2 CEE DEBLUR and it reboots every time I plug in my usb cable. It doesn't matter if it's connected to a PC or to the power adapter. Anyone have the same issue and know of a solution?
I did a google search and found someone complaining of the same issue but didn't see a solution.
More background:
I had an issue with my phone and when I went to do a factory reset I was stuck on the google screen. My power ended up running low to the point where I couldn't run the bootloader. I had to charge the battery manually with a battery charger and some wires. I monitored the voltage throughout to make sure the battery was ok. After flashing the new SBF I found that things worked fine except whenever I plugged in a USB cable it would reset. I put CM7 on the phone hoping it'd help but the problem still lingers.
I will probably attempt to flash another SBF or maybe reflash the existing one.

Does this problem only exists if the phone is fully booted or does it happen if you plug it in while booting also? Because if its happening while booting too maybe your usb cable is broken and theres a short in the cable that makes the defy reboot. Have you tried another cable? And what about plugging the cable in before booting the phone? Tried this already?

I encountered this problem occasionally before. Dunno why.

There's 3 possible issues here apart from software/firmware causes.
1) The USB cable might shorted.
- This can be confirmed by using multimeter to test the usb cable. You will see a shorting between to wire in the USB cable.
2) The Phone USB port might shorted.
- This can be confirmed by using another good/new usb cable and test it with multimeter.
3) Phone battery broken(happened when you charge it using wire and external charger).
- This can be confirmed by trying another Defy battery and charge it.

hi farsight,
upon further inspection i'm pretty sure the usb port is shorted because if i squeeze the bottom of the case the phone will reboot.
is there any way i could fix this? I've looked at some videos for the disassembly of the defy.
hi iregistry,
yes the issue occurs if the phone is fully booted and when it's booting.

quit risky la.. if under warranty, why not claim/RMA?

hi adie, i bought it new on ebay and i'm not sure how the warranty works on that.
[solved!]
after further testing I believe it was because the battery contacts were not as close together as they were originally due to me manually charging the battery. It must have been right on the very edge because it would work normally but just squeezing it would make it lose connection.
I used a pin to push the contacts closer together and hope this solves the issue. I've plugged in the usb and squeezed the case and so far everything seems ok.
IMO this is a poor design on motorola's part. the raised contacts on the phone are nice but the contacts on the battery are poor.
Thank you everyone for responding.

Had the same issue. Your solution worked on mine as well. Pushed the contacts on + and - in, and it worked! Thank you!

I had the similar issue. I had attempted to charge battery with external universal charger and looks like since then this issue where "phone would reboot upon unplugging the power source" started. Now as mentioned in this post, put the +/- pins bit closer and tried unplug and no issue observed so far.
Thanks. :good:

I too have the same issue. I tried to charge the battery with some direct USB.
Today I dropped the phone on my bed from 2' height and it got restart. But its quite surprise to see the effect of the USB plugin with the battery connector loosing up
I am thinking of putting a small alumunium wrapper on the +/- connector. Let see.

need quick help please defy wont charge

Hey guys I am hoping someone can assist me. This morning when I woke up my defy would not charge. I have tried charging via my pc, ps3, and 3 wall chargers and it refuses to charge. The battery is at a very low state (around 7 percent). I am afraid if I call tmobile and/or bring it to their store and they look at it im screwed because im running CM9.
The phone is still under warranty for another few weeks, do I just chance it at this point and hope it has enough juice to flash the USA SBF and then go for warranty options or is there a fix for this?
EDIT: silly me, cant flash a SBF because my pc doesnt know my phones connected

did u try to use other usb cable ?
maybe the problem is the usb cable .

Yes all 3 chargers had different cables. My wife's LG marquee is charging fine on them
Sent from my LG-LS855 using XDA App

is it odd that without a battery in the phone I can wiggle the usb charger and my phone will boot into CM7? I thought it was odd, I kind of find it out on accident
EDIT heres the deal I can wiggle the usb end that plugs into the phone itself without a battery, and the red M logo comes up and will boot into CM7. At any time if disconnect the usb during this process, the phone turns off, If I leave the usb plugged in it continues to work. Anyone have an idea as to whats going on? It seems like it must be getting a signal from the usb cord

my friend, if you have an earlier complete recovery just boot into recovery mode the restore it. i can confirm that will solve your problem as i encountered the same problem before.
try to use an original usb cable.