Database Users

HD2 charge from dead battery questions

I have an HD2 I just bought, should be still under warranty (aside from running wp7 and random warranty-voiding stuff) and I am noticing an issue of when I totally kill it, it seemingly won't charge (or no charge light comes on at least) until I pull the battery out and put it back in. Also, I have noticed it doesn't power on from that state (light goes from orange to green) until I pull out the battery and put it back in. Is it just because I'm running WP7 and hardspl3 or radio 2.14.50... (or whatever recommended radio is for wp7). It's not a huge deal but it makes me curious. Also I get occasional restarts upon booting wp7 but it always boots into it (maybe 1 or 2 restarts every ten boots, and it seems to happen more after total kill). Just wondering if people are having similar issues.
WP7 is pretty cool, but I am wondering how many prefer 6.5? I'm an avid Android user (never ran 6.5 except on a Blackjack ii briefly, and yes, 6.5) and I was curious what you guys thought of wp6.5 vs wp7.
Lastly, I am wanting a magldr compatible sd version of a Desire HD ROM with sense and everything that isn't overclocked (I know there are some out there that are, ie DL.DesireZ 3.x).
Please advise.

It's not WP7, it is MAGLDR. MAGLDR does not have a software in it which allows the phone to charge when off.
My advice to you, never, ever, let your phone lose charge. A dead battery is a dead phone in our case, unless you have spare batteries.

I figured something like that. It's not going to botch the magldr flash though if it dies, is it? I would assume magldr is read-only or close to or something like that to where it can't corrupt itself.

I don't see why a dead battery can kill MAGLDR, it'll just leave your hd2 unable to turn on. However MAGLDR, I assume, isn't incorruptible. Well if you're afraid of corruption from leftover flashing, for whenever you want to flash WP7, Android or winmo, perform a task 29 first, flash MAGLDR, and then the OS. Well if it winmo, then a task 29, then simply flashing winmo and done.
Oh and the reason WP7 kept on rebooting on yours was because your sd card was incompatible. My advice is to reformat the sd card with panasonic formatter, full format btw, and then reinstall WP7. If that doesn't work, you just have to get a new card.
A MAGLDR SD desire hd version I know not of. Since NAND came out, SD development has died off so there are only a few developers that still strive in that forum.

Well it restarts hardly ever so I probably am not going to worry about it. It's the stock HD2 sd that came with the phone. The reason I want an sd build is because I want to dual boot.

I don't understand how I seem to be the only one who can charge in magldr.
I've drained my battery many times to the point where it doesn't turn on to calibrate using Android. Pulled battery, reinserted and connected wall charger. Orange light comes on which means it's picking up charge, leave it for a few minutes so it gets some residual charge in it, pull battery and charger, reinsert, boot up, then during boot process plug the charger back in and away you are, charging from scratch.

I too didnt have any problems charging dead batteries via MAGLDR.
Those who are can update to version 1.13 as its now got a workaround for it apparently.

I wasn't aware v13 was even out. Well it's not a big deal. Glad everyone is having this issue . This bug still beats having to wait 20 minutes for my stock Sammy Vibrant to boot up. Damn ridiculous.
Is your battery life worse on WP7 or WP6.5? I get roughly 8-10 hours. I'm surprised it burns that much electricity seeing as how all it is is some colored squares and no data connection or multitasking.
EDIT: Updated to MAGLDR ver. 1.13 without a hitch. Will see how this goes. For the record I was using 1.12.
I guess this is the fix:
"*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."

I could do it on the first version of magldr, as long as the Orange light comes on you're good to go, just leave to get some charge then pull everything reinsert turn on, simple...

I found the trick--MAGLDR V1.13
Plug the phone into a wall charger. Hold the call end button as soon as the phone comes on booting into MAGLDR. Let the phone stay at the MAGLDR menu screen for about 15 to 20 minutes. Restart the phone and leave it on the charger. It will have enough power to make it to the android home screen.

sorry for the delayed reply bro but i justr had this problem lately and know abt the fix for it... just go into magldr by pressing the power key for sumtime on bootup... after that plug in the wall adapter for about 20 - 30 minutes... havng done that remove the battery and insert it agiain w/o the charger... start the phone and let it go the main wp7 screen where it will stay for only about 20 seconds... quickly run to the settings menu and switch on airplane mode and put the brightness to the lowest setting... and quickly lock the screen... the phn will start charging fine... now leave it for an hour to charge and then adjust the brightness as u like and turn on airplane mode... it will work fine... take precautions for next time... there is a kind of an odd fix that was in forums...(sorry dont have the link)... when the wp7 is working go to the default camera and go to the video camera mode and switch back to the still camera and press the windows buttn to go to the main screen... the battery drainage is very less in this case and the stanby increases... cheers!

Phone restarts once drained whilst charging

Hello
Once ive completely drained the battery, and i got to plug my hd2 WP7 in from a wall plug, it automatically switches on.
Then, it goes through MAGLDR and the boots WP7 onto the welcome screen, then restarts back to MAGLDR again!
So what i have to do, is leave it on the magldr screen for a few minuites and wait for it to charge up a little before starting WP7.
Anyone else have this problem?
I have checked BatteryTool whilst plugged in and on 30 second test, i get between 392 and 465.
Is this typical? this is whilst in the wall and the screen on.
Cheers!
p.s just looked at the charger, and its supposed to be outputting 5v DC and 1200mA

Same behavior here.
Seems that after x restarts also is capable of loading wp7 tough.

I run into the same problem. If you let it hang in MAGLDR, even on the first boot, to let it charge up some, then it can boot on the first round. For some reason it doesn't boot if you plug it in when the phone is off; does it not charge in this situation? I am yet to actually bust out a multimeter

The new magldr being developed supposedly fixes that. We all get that issue.

HD2 does it even without modifications. It seems it happens when it doesn't have enough charge to boot all the way into the OS so it reboots forever. As homeworld1031tx says, leave it on magldr screen for a few minutes which should let it get enough juice to boot properly.

aaah, glad to know im not the only one having this issue!
It becomes even more of a problem when your using a car charger.
I guess we will just have to waitt for the next MAGLDR

another one to watch out for, and that was what i thought you was going to say from your title
is that if you charge the phone whilst the red light blinks, it will not charge!
From what ive noticed this can happen from one of two ways, firstly is that you get the phone to hot, it seems to have some kind of thermal cut out, the second way is to run the battery right down low, it seems to get confused sometimes and wont let you charge even within windows. Infact the battery monitor program can sometimes show you a negative value for the charge left in the battery
In fact it almost discharges the device, The battery is a real pain in the arse, my advice to you is get an external charger cuz the other thing with using MAGLDR and The bootloader to charge is that it messes up your clock, an if you get a bunch of txts whilst its messed up it can be a pain in the arse to find them!
This isnt likely to get completely fixed guys (the Magldr issue fix is slightly different and wont fix everything), to try an make the best of a poor situation, i find a nice cradle with an Aux charge slot on it and a spare battery works wonders.

[Q] Charging While In MAGLDR 1.13

Ok, so last week my iPhone got lost, and I had to get a new sim card (on AT&T). I asked all my friends if they had any sim card phones I can borrow, and one of them let me use her HTC HD2 (T-Mobile branded).
I installed everything correctly, Radio, MAGLDR, HardSPL and Android perfectly. The phone has been working great (sans 3G) for the past week.
I noticed the battery died VERY quickly, and seeing as the phone was old, ordered a new one.
I got it in the mail today, and upon plugging it in (because of MAGLDR 1.13), it automatically turns on and tries to boot android from NAND.
Here is the problem: It doesnt have enough battery to fully boot up, so about 5 seconds after showing the Dark Force Team screen, it reboots. And loops.
I can find no way of charging the battery. Wall chargers and USB cords do the same, it automatically turns on, and will NOT charge.
I'm not sure why MAGLDR automatically turns on the phone instead of just keeping it off, or am I missing a setting somewhere?

Pull the battery press and hold the power button until it boots into magldr and leave it like that for 10 or 15 minutes it will charge but not indicate its charging then switch on normaly

It continually surprises me that the advice to "boot into magldr and leave it for 10/15 minutes" keeps being offered.
the person who wrote magldr clearly states that the phone WILL NOT CHARGE under magldr,,, android must be running. The code to control charging doesn't exist in magldr, it is not possible to charge using only magldr. That's why magldr starts the phone when it detects the USB connection,,,, so that android can boot to allow charging to start.
OP, get a spare USB cable, mini / micro, cut end off, bare red and black, take out battery plug usb into wall charger and hold red to + and black to - for a minute or two. Should now be enough charge to boot into android and start charging.
When a battery is empty, but only just empty, not fully discharged, letting it rest for ten mins often allows the residual charge to build up a little, so a phone that wouldn't start suddenly has enough to just about start. I believe this is why people think leaving it in magldr charges it. It doesn't.

I left it for an hour and still the bootloop.
I even tried it with the battery I know works. After 25 minutes the battery had 3% less charge then before I left it plugged in at the MAGLDR main menu.

if it bootloops with a good battery, there's a good chance it is a bent battery pin. Either that, or sometimes when a battery dies whilst the OS is running, it screws up and then wont boot until you do a hard reset or fresh flash. (However normally it would hang rather than bootloop, but anything is possible)

samsamuel said:
It continually surprises me that the advice to "boot into magldr and leave it for 10/15 minutes" keeps being offered.
the person who wrote magldr clearly states that the phone WILL NOT CHARGE under magldr,,, android must be running. The code to control charging doesn't exist in magldr, it is not possible to charge using only magldr. That's why magldr starts the phone when it detects the USB connection,,,, so that android can boot to allow charging to start.
OP, get a spare USB cable, mini / micro, cut end off, bare red and black, take out battery plug usb into wall charger and hold red to + and black to - for a minute or two. Should now be enough charge to boot into android and start charging.
When a battery is empty, but only just empty, not fully discharged, letting it rest for ten mins often allows the residual charge to build up a little, so a phone that wouldn't start suddenly has enough to just about start. I believe this is why people think leaving it in magldr charges it. It doesn't.
Click to expand...
Click to collapse
Are you sure about this? Because if you turn off phone at 1% charge, turn on MAGLDR 1.13 -> USB FLASHER and leave it over night, battery is at 100% when turn on and lasts for a day.

Just going on what cotulla says, and since he wrote magldr he knows that the code to control the charge circuits doesn't exist in magldr, plus the OP says he left it in magldr and the % went down.
However you sound like you've tested this yourself, so I shan't argue with you, since I haven't.
Perhaps USB flasher mode exposes the battery terminals to raw USB power, bypassing the charge control circuits, giving the same effect as holding bare wires to the battery?

Yeah I'll have to figure something out. And not to knock the writer of MAGLDR, because I could certainly not create something like it, but I find it odd and almost disturbing that the creator is fully aware that a dead battery basically bricks your phone?

I think "bricks your phone" is a bit harsh,, its not like its a surprise, most roms spend the last 15/20% warning you of low battery.
I've used the bare wire method three or four times now when my battery ran out, and although I did say it sometimes won't boot after running out, as often as not it does boot ok. I'd go into cwm and clear cache,, if that doesn't help I'd try a cwm backup,hard reset (via cwm, not the built in bootloader hard reset) see if it starts fresh, and if it does restore SD ext,, if THAT works I'd then restore data.

Just a quick related question - can you charge your phone while in bootloader? I couldn't find an answer to that but I need to know...

Allegedly not. At least that's always been the answer that has been given for the past two years. I for one believe that it doesn't charge in bootloader.

Heres the update : I had a bad charger and the usb cable was messed up as well hence the phone dies on me as battery got over. When i was trying to charge it, was getting a bootloop because of MAGldr so what i did was left the phone in the main Mag menu for 5 mins and rebooted and viola it booted in android and is charging now hope this helps i guess somehow MAG does charge your phone cheers

[Q] HTC HD2 won't turn on<don't recognise Charger or USB

Hi,I have a Android gingerbread 2.3,haspl v.3,MAGLDR113,it's second time my htc block and dont want to restart from the buton,i have remove the battery and it dosnt want to turn on ,there is no screen,the battery was charget,but the red light don't light when i plug the cabel,in my PC dont recognise usb,nothing and the phone,i try for 1 day to remove a battery,but no result,1st time when it happens it work,but for a week i can't use it,Sorry For my English,Some ideas what can i do before i took it back in the store

sounds like it could be a simple flat battery. when magldr is installed you cannot charge the phone unless android is running, so when it is off it does not charge.
if you can try another battery, or your battery in a winmo hd2, that will tell you if its teh battery.
If you have a spare usb cable (any type, doesnt have to be a hd2 micro usb cable) cut end off, bare red and black, hold red to + and black to - on teh battery for about a minute, which should give it enough power to charge.
Also check very carefully that you dont have a bent battery pin from all teh battery in/out. they bend easily.

i hava a Bat charger and charge the bat all night,and the morning it show me that bat is charget,put it on the phone,but nothing ... cant turn on

Maybe battery is dead. Do you own a volt meter an can check the voltage provided by the battery? It shoud show up about 4 volt.
---------- Post added at 08:12 PM ---------- Previous post was at 08:04 PM ----------
Maybe battery is dead. Do you own a volt meter and can check the voltage provided by the battery? It shoud show up about 4 volt.

i took the bat to my friend with devace to check the battery,and everything is OK,but the phone didn't turn on,Can i reinstal the Android ?and how can i do it

Is there a program that can connect to the phone and erase everything

To wipe the phone install the HD2 toolkit, you can download it here.
It includes every tool needed for maintaining your HD2.
Be sure to install the drivers!
Start the program and press the Task29 button, follow the instructions provided. When it's finished your HD2 will be fully wiped, so you would need to reinstall everything.
Do so by doing a MAGLDR repartition. After that choose MAGLDR update recovery to flash the Clockworkmod recovery.
Then go into the Clockworkmod recovery and flash your rom.
Now your HD2 should be fully wiped
BUT! If your PC doesn't even recognize your HD2, and you can't even get to the bootloader screen by pressing and holding both volume down and the "end call" button. Then it's probably a hardware failure.

Maxp101 said:
To wipe the phone install the HD2 toolkit, you can download it here.
It includes every tool needed for maintaining your HD2.
Be sure to install the drivers!
Start the program and press the Task29 button, follow the instructions provided. When it's finished your HD2 will be fully wiped, so you would need to reinstall everything.
Do so by doing a MAGLDR repartition. After that choose MAGLDR update recovery to flash the Clockworkmod recovery.
Then go into the Clockworkmod recovery and flash your rom.
Now your HD2 should be fully wiped
BUT! If your PC doesn't even recognize your HD2, and you can't even get to the bootloader screen by pressing and holding both volume down and the "end call" button. Then it's probably a hardware failure.
Click to expand...
Click to collapse
Magldr repartition flashes cwm so no need for the update recovery step. That's for, well the clue is in the name,,, updating the cwm version on an already partitioned instal.

Okay, thanks for clarifying that!
Didn't know it worked like that, I only use CLK.
Sent from my HD2 using xda premium

thanks for the information,but Isn't happened like I expect,I still cannot to turn the phone on,and still don't recognize USB,Battery is Full,
Everything i try:
Remove a battery for 1 night
Charge a battery with Charger for battery
Put the charge cable into phone for 1 day
try comb. with keys ( volume up/volume down/Power but.,,volume Down and power but.)but nothing happens.More idaes ??? , or maybe never will wake up this phone ???

more information for the problem
htc hd2 1024 mb with Android gingerbread 2.3,haspl v.3,MAGLDR113
Sd card 2 GB (class 3)
while I play games and watching youyube via wifi connection my charge cable was plugged in the phone,in about a 2,3 hours it freeze,i wait 1,2 minutes and after i try to power off the phone I remove the battery and pul back again and in this moment the phone never turn on.That is maybe everything I know if someone knows or give me a idea what to do,please tell me

I've seen this and similar a few times, when left on charge overnight, and upon waking the phone is totally gone. I've woken up to a fully hard reset phone myself, once, not dead but something weird happened.
Electrical surge, perhaps? Overheated circuits? Who knows.

Somehow the phone start,I have put on my router,and plug in USB all night,in the morning i remove a battery,remove a SDcard put back batery,plug usb and it go,I replace infromation from the card with onother sdcard,flash the phone. 10x for the help,maybe now everything is ok

marto9067 said:
more information for the problem
htc hd2 1024 mb with Android gingerbread 2.3,haspl v.3,MAGLDR113
Sd card 2 GB (class 3)
while I play games and watching youyube via wifi connection my charge cable was plugged in the phone,in about a 2,3 hours it freeze,i wait 1,2 minutes and after i try to power off the phone I remove the battery and pul back again and in this moment the phone never turn on.That is maybe everything I know if someone knows or give me a idea what to do,please tell me
Click to expand...
Click to collapse
I've same problem after similar conditions.
Mine is 512Mb HD2 running Andorid on SD
- while using in extreme conditions: very low network signal, hot ambience temperature, using GPS and downloading data throug 3G
- the screen freeze on image and not respond on touch neiter button
-after 2-3 minutes phone temperature became very hot and screen again on freeze
- removed battery (for power off button not responding)
- insert battery
- no power up, no green LED with AV adaptet, no USB recognized
I'll trying to charge battery but i don't have a table battery chager.

Could you please repeat me what you did, since I didn't get the first part, what did you put on your router (what kind of router please)?
I've tried using my phone with another HD2 phone's battery which is working (and which also started with my own battery?!) but my own phone wouldn't start at all with the other battery...
The battery wasn't fully charged, but did it have to be, if so how long should I charge the battery with the cut USB cable for it to be charged enough please?!
TIA
P.S. I've tried a voltmeter on my battery and it said 4.14V (should it be 4V exactly?) and should I even try the cut USB charge trick again (since I've tried another phone's working battery)?
marto9067 said:
Somehow the phone start,I have put on my router,and plug in USB all night,in the morning i remove a battery,remove a SDcard put back batery,plug usb and it go,I replace infromation from the card with onother sdcard,flash the phone. 10x for the help,maybe now everything is ok
Click to expand...
Click to collapse

dada.81 said:
Could you please repeat me what you did, since I didn't get the first part, what did you put on your router (what kind of router please)?
I've tried using my phone with another HD2 phone's battery which is working (and which also started with my own battery?!) but my own phone wouldn't start at all with the other battery...
The battery wasn't fully charged, but did it have to be, if so how long should I charge the battery with the cut USB cable for it to be charged enough please?!
TIA
P.S. I've tried a voltmeter on my battery and it said 4.14V (should it be 4V exactly?) and should I even try the cut USB charge trick again (since I've tried another phone's working battery)?
Click to expand...
Click to collapse
Ok if I understand you correctly you have tried your battery in a working HD2 and it worked. Then you tried the battery from the working HD2 in your device but your device still did not boot up. If this is correct I do not feel your battery is the problem, but still check the battery pins on your device to make sure none of them are not slightly bent and not making contact properly.
Also if you can provide more info on what you may have done to cause this or what happened when your device reached the state it is currently in. This info can help others and me help you better.

I have a similar problem.
The phone won't start, it gets to the white htc screen sometimes but quits within a fraction of a second.
This has been so since the first Android boot hung (I suspect I have not followed the steps accurately enough...). I have charged, decharged and recharged the battery using the suggested USB-cable technique, but this was of no aid so far, so it's not the battery. Pins and all's fine.
It's someone else's phone, too, so it would be rather unfortunate if I bricked it.
Are there any other common reasons for this behavior? Most tutorials rely on a PC connection, but as it does not recognize such a thing, that's a bit of a problem.

Finally the same problem here.
Battery status was about 70% and running smoothly (WinMO Custom Rom) since installed.Unlocked the Screen and tried to start programs.
The Icons were lightened up but nothing happened.Tried to softrestart...Nothing happened.
Removed and reinserted the Battery.
=> Not turning on.
-another fully charged Battery => nothing
-charging on Charger => nothing not even charging light
-plugged into (running) pc => nothing not even charging light
-5 hours in the fridge => nothing
-charging over night => nothing
Any hints ?
Thx for the goot work around here and greets from Germany !
Sebastian
PS If anyone got one to offer => contact me. Dont like those situations

Bad news!
Seems like your MB is gone...:crying:
Maybe one chance left for a JTAG attempt to a local service shop...

thats what i was afraid of
at least it happend only one hour after i made a backup
thx for the reply !

What is wrong with my HD2? It would not turn on when on battery power but....

I was trying to delete every files/folders on the SD card while it was still in Android OS and when it was connected to my desktop via usb cable but then when I finished deleting the files/folders and when I take out the battery to reboot the HD2 it would not turn on at all.
Then when I plugged the HD2 into a charging cable via the electrical outlet, the HD2 would turn on at the "Stick Together" logo then turned off after about 3 seconds. It repeats this pattern of turning on and off continuously when the HD2 is plugged in. It would be completely dead and would not turn on if it is disconnected from the outlet and just be on battery power.
How do I fix this? Did I just brinked my HD2? Is there a way to fix this?
Thanks.

i had this happen when my charger cable went bad one night and my phone drained down to nothing. just the boot logo like you described then it reboots.
i hope yours is the same. that the battery has too low a charge to start the phone further.
I let mine charge for a half hour then it worked.
also check to see if the battery terminals are bent a little and not letting the battery charge.
good luck

Earthbrain said:
I was trying to delete every files/folders on the SD card while it was still in Android OS and when it was connected to my desktop via usb cable but then when I finished deleting the files/folders and when I take out the battery to reboot the HD2 it would not turn on at all.
Then when I plugged the HD2 into a charging cable via the electrical outlet, the HD2 would turn on at the "Stick Together" logo then turned off after about 3 seconds. It repeats this pattern of turning on and off continuously when the HD2 is plugged in. It would be completely dead and would not turn on if it is disconnected from the outlet and just be on battery power.
How do I fix this? Did I just brinked my HD2? Is there a way to fix this?
Thanks.
Click to expand...
Click to collapse
Were you running an SD build possibly?
Also as previous poster states check for bent battery pins where all 3 contacts need to be straight in line.
Sent from my HTC HD2 using Tapatalk

It is not the battery problem. I have two HD2 and I can check the battery power. Both batteries is at 100% full charge.
I just don't know how to fix this problem. Please help.
Oh, and yes, I was running the SD build prior to the problem.

Earthbrain said:
It is not the battery problem. I have two HD2 and I can check the battery power. Both batteries is at 100% full charge.
I just don't know how to fix this problem. Please help.
Oh, and yes, I was running the SD build prior to the problem.
Click to expand...
Click to collapse
SD Android should never affect WinMo, but that has to be one of the stupidest things ever. Why on Earth would you delete the files key to the system whilst in Android?

Nigeldg said:
SD Android should never affect WinMo, but that has to be one of the stupidest things ever. Why on Earth would you delete the files key to the system whilst in Android?
Click to expand...
Click to collapse
I did not know that it would mess things up. I thought that WinMo would take over once I take out the battery.
So what happened to WinMo? How come it cannot boot back to WinMo now ?
Any fix for this?

I had the same problem when installed Winmo 7,5. turned on only with cable and restarting every 5 sec.
I took out battery for 10 mins and when plugged in worked normal.(but after every turned off i had to take out the battery) and because of that i turn back to winmo 6.5 and ics android sd card (haret) and until now working perfect.

Earthbrain said:
I did not know that it would mess things up. I thought that WinMo would take over once I take out the battery.
So what happened to WinMo? How come it cannot boot back to WinMo now ?
Any fix for this?
Click to expand...
Click to collapse
Unfortunately I have no clue. I, like you, wouldn't have expected that. Just try re-installing if all else fails I guess. Unless by some miracle it begins working again I would think this would be the only way, sorry
Also try reformatting your SD Card to FAT32 format and see if this has any effect.
boglefkas said:
I had the same problem when installed Winmo 7,5. turned on only with cable and restarting every 5 sec.
I took out battery for 10 mins and when plugged in worked normal.(but after every turned off i had to take out the battery) and because of that i turn back to winmo 6.5 and ics android sd card (haret) and until now working perfect.
Click to expand...
Click to collapse
In this case your issue is normal. Windows Phone (not WinMo which is seriously sh*t but Windows Phone 7.5 which looks to be amazing) runs through MAGLDR which does not support cold charging (charging when phone is off) therefore when plugged in the phone just begins to boot up in order to start charging, but cannot charge until it is booted into the OS and there wasn't sufficient battery to do that, hence the bootloop.