Database Users

Fix for dead hd2 winphone 7 fter battery discharge

Probably the wrong place but this forum is beyond navigation for newbies like me...
if you have let your battery run dry and can no longer charge and get into your win7 hd2, here's how I did it...remove sim and sd card, plug charger in, it will boot and charge again... worked for me...

I'll make sure to keep this in mind, if it works! I'll make an edit to announce my results when that unfortunate day comes.

Pulling the battery out and sticking it back in works too.

NeoGreendawg said:
Pulling the battery out and sticking it back in works too.
Click to expand...
Click to collapse
not for me. if its really discharged and i remove the battery, put it back, the charge led (orange) goes on and after 5sec its off again and nothing happens

NeoGreendawg said:
Pulling the battery out and sticking it back in works too.
Click to expand...
Click to collapse
Nope, that only works if you still have charge left in battery. removing and putting it back in also unlocks it because if you power on phone with USB in it locks for some reason. Well mine does anyway.
If your battery is completley dead then you have no choice (atm) to either charge the battery externally with a dock or by using a USB cable with end cut off (red wire to positive/black to negative).

NeoGreendawg said:
Pulling the battery out and sticking it back in works too.
Click to expand...
Click to collapse
Yes. That's what I also do many times. Never fails
No need to pull out your micro sd, it might cause your rom corrupt. Be careful!

Here's What works for me
Remove the battery .. put it back ... keep the down volume key pressed n press the power key ... THE phone will be on recovery screen... plug THE usb in .. leave it like this for like 15 mins n now reboot . It will be recharged just enuff to power the phone on ... keep the usb plugged and it will start rechaging ...

None of these tricks worked for me, and I didn't want to cut my usb cable...
But I solved the problem with dual boot. Now I can charge my hd2 when it's turned off, and I even have my battery able to charge up to 100%

I presume the phone will not charge if theres not enough power to enter WP7.
I thought the phone would charge by the USB power lead if its turned off.
I guess enter MAGLDR or the Tricolour screen will allow it to charge?

TheATHEiST said:
Nope, that only works if you still have charge left in battery.
Click to expand...
Click to collapse
I've let my phone turn itself off twice since I've been on WP7 and pulling the battery has been enough to get it to boot up far enough to charge both times so maybe I've just been lucky or maybe the phone shuts down before it's completely discharged...

Oh man, this happened to me the other day. Battery died, phone wouldn't hold a charge. Freaked out!! But after some trial and error it worked.

Its not possible to charge the phone when its turned off?
This happened to me when I was still using WinMo. When I connected the phone to charger, it seemed dead (no led light), but after some time (I left it charging over night) it catched up and charged.
This is not possible with WP7? I wouldnt say, that MGDLR could change the way of charging when the phone is off.

keep an external charger for this problem. at least we can hope in the next update of the ROM will solve this problem

In my case, since I fall asleep while listen to music, in morning I wake up, phone already shutdown and can not boot. Even when I plug in, it boot to htc welcome then reboot.
I have tried to pull out the battery and put it back but nothing happen, my phone keep reboot.
So, I pull out the battery and charge with external charger (can charge battery only without phone). Then after 30min put it back then it works.
Thanks god. So be prepare an external charger because WP drain more power then we thought even with the warning 10%. I can not have enough power left for an over night.

This works for me.
This is known maglard issue. This steps works for me every time.
1. Remove battery and after few seconds place it back.
2. Connect your phone with PC through USB
3. Now enter bootloader by pressing Vol Down and Power buttons at same time.
4. Leave it connected for a few minutes.
5. Disconnect your phone from PC and remove battery for a few seconds.
6. Now place battery back and power up your phone.
7. You will start WP7 and now you can continue charging battery normaly.

MGDLR choose last option
it hapens to me and what i have done is in MGDLR I choose last option an it satart charging after some minutes you have to take out the baterry and reboot
it work for me

Happened to me this morning:
1) Took battery out, placed in cradle, put battery in, and held down 'POWER' whilst it booted to MAGLDR.
2) Selected USB Mass Storage Mode, waited for 10 minutes, pulled the battery out, whilst still in the cradle.
3) Re-inserted battery, allowed WP7 to boot, and orange light came on whilst booting, and started charging in WP7.
Thanks to all in this thread!
Nick

Tghe VOL DOWN + POWER works. Happened to me yesterday and after 10 minutes in tricolor I was able to boot.

Bootloader Charges Battery
VICTORY! I was frustrated, and pulling out the battery for a few seconds didn't help at all. Putting the phone in the bootloader (tricolor) screen for 10 minutes worked for me. Phone is back in WP7 and is charging.

No need to pull out battery just hold down power button boot to magdlr main menu leave charger in for 5 mins than boot wp7 (first option in menu) than shud work
Sent from my HD7 T9292 using XDA Windows Phone 7 App

Battery Qustion???*

i just got the phone nad first charge i charged it whe ni got it and now its dead im charging it battery is very weak compared to nexus one i had.... but is it true that if u discharge it completley and then charge it completey and repeat 3-4 times battery gets good? i also heard over a little time that battery gets way better? any one can relate to this?

Sounds like you could benefit from re-calibrating your battery. It can be done manually through recovery by resetting battery stats, or easily through an app like this one (you must be rooted).

how u do it without rooted and i heard discharging 3 times and fully charging works? any update on that

There's lots of different "methods" floating around about how to calibrate your battery, many of which actually don't make much sense. The ones that do make sense to me involve deleting the batterystats.bin file. That app TeeJay3800 linked to pretty much does just that. For rooted devices, all the ClockworkMod recoveries have an option to delete battery stats in the Advanced menu.
I think this file is located somewhere in /data but I don't know off the top of my head. I also don't know if root is required to delete this file. Maybe try finding it with Terminal Emulator and attempt to delete it. If that doesnt work, then you'll probably have to root the device (or maybe just temproot it).

yea i did it yesturday nad today its still bad about to attept 3rd charge and im waiting till it dies it went from 39% to 19% within an hour wtf is this??? im waitign till ti dies then recharge to fully

i also did this wthich is good but will it mess anything up if the phone is brand new and is charging fine
Connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged.
Disconnect the phone from the charger, and power it off.
Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green.
Disconnect the phone from the charger and power it on.
Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green.
Disconnect the phone, power it on, and use it. You need to use this sequence only once.

bigg12x said:
i also did this . . .
Connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged.
Disconnect the phone from the charger, and power it off.
Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green.
Disconnect the phone from the charger and power it on.
Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green.
Disconnect the phone, power it on, and use it. You need to use this sequence only once.
Click to expand...
Click to collapse
This is "bump charging" and all it does is try to fill up your battery as much as possible. It's like topping off at the gas station. It won't do much as far as battery calibration. You may see a minor improvement in battery life after a bump charge, but you'll have to do it each time you charge.
Keep in mind that battery life is dependent on many factors, including your usage pattern. Improving battery life is a matter of being mindful and selective about what connections you leave open (bluetooth, GPS, WiFi, account sync) and what apps you let run. Screen usage plays a role as well. Network signal strength also plays a part, but that's not something you can control. Don't use taskillers, they cause more problems than they solve.
I'm assuming you're still on the stock ROM. If that's the case, you should be aware that there's lots of extra stuff on there that runs in the background to support the HTC Sense overlay. The biggest improvement in battery for me was (a) flashing a custom ROM without all that junk on it and (b) flashing a custom kernel which both underclocks the CPU and uses lower voltage settings.
If after all these considerations you still think your battery is borked, head over to a T-Mobile store. They may give just you a new one, otherwise it'll probably cost you not very much.

[Q] HTC Not charging while off (cLk)

Hey,
I have installed cLk and my battery ran out by accident, and when I put it in with my USB it just turns on the phone, then turns off almost straight away then turns on and goes in a loop. How can I ressurect my phone? I thought cLk was able to charge while off?
Thanks,
Snowled

Did you check the contact pins between battery and HD2 body?My experience is that the middle pin is so easy to be bent, and can not contact to the battery. This makes battery unchargeably.

CLK can be offline charging but I still get problem too if I want turn on my device,,,i must pull out my battery and back it back to turn on my device,,,,

ariebower said:
CLK can be offline charging but I still get problem too if I want turn on my device,,,i must pull out my battery and back it back to turn on my device,,,,
Click to expand...
Click to collapse
This is due to how clk charges while off. AFAIK the phone isn't truly off when charging, instead it boots to something (clk?kernel?something else?) that just handles charging with the screen off. This is also why the hardware key lights will light up when charging while off. You don't need to pull the battery, just unplug from charger and power up.

If you still can't get it to charge, remove the battery, connect the usb cable then wait a few seconds, finally insert the battery and your phone should start charging normally .

cLK: phone off under charge
Hi guy
with cLK 1.5.0.3 when my phone is off and under charge, I have to remove the battery because the led stay on, and as if I push the power button, the phone doesn't start on.
This happen also when I unplugged the cable and push the power button like suggest to jwchips (2 post above)
There's a solution?
Ps. With phone off and usb cable is plugin, the battery charge.

still not charging
phone still not charging, I have to charge the battery outside of the phone, then insert it for the phone to boot up, then it will charge, if the battery died on me, it wont charge with the original charger or with the computer USB...

Enable in-built charging mode in CLKs advanced settings and try.

Don't know about Clk...but in magldr...when in boot menu screen...HD2 charges. (Led is off...no indication of charging...but it does).
Sent from my T-Mobile HTC HD2 using XDA Premium.

Snowled said:
Hey,
I have installed cLk and my battery ran out by accident, and when I put it in with my USB it just turns on the phone, then turns off almost straight away then turns on and goes in a loop. How can I ressurect my phone? I thought cLk was able to charge while off?
Click to expand...
Click to collapse
What version of clk do you use? The latest experimental version can charge in off mode (both by recovery or built-in clk) and wake up your phone easily. You can charge in off mode when using old clk. But, the wake-up key combination is weird, i.e. volume up + volume down + power key. It is difficult to press them at the same time.
If all failed, charge the battery out of the phone.:fingers-crossed:

charge it in tricolor bootloader! (volume down + power) and it will not show led during charge

Snowled said:
Hey,
I have installed cLk and my battery ran out by accident, and when I put it in with my USB it just turns on the phone, then turns off almost straight away then turns on and goes in a loop. How can I ressurect my phone? I thought cLk was able to charge while off?
Thanks,
Snowled
Click to expand...
Click to collapse
2# is right :laugh:

sonalikagaur said:
Don't know about Clk...but in magldr...when in boot menu screen...HD2 charges. (Led is off...no indication of charging...but it does).
Sent from my T-Mobile HTC HD2 using XDA Premium.
Click to expand...
Click to collapse
Are you sure about this? I don't know exactly what happens because I only have WPH 7.8 and I can't really rely on the battery indication while it turns on. Every time it is different.
So, maybe a new feature in the next release of MAGLDR can be a battery charge indication and levels? Since it boots up anyway to charge (even in magldr), i think it would be helpful. What do you all think? Maybe we post a humble request to the developers of MAGLDR?

New Battery problem

Hello
My battery sucked, like going from 100 to 20 in 10secs so i asked for a new one from huawei greece. They sent me a new battery and when i put it into the phone and tried to boot it phone didn't boot. I thought it was because the battery was empty and when i connected it to charge first the light was blinking red and then phone boot up to the battery screen. 15min later i realised the phone was boot up and the red light was blinking red and not like staying red which is the light when you charge it with no battery. the percetange was 0%. i left it there for a little bit but nothing happend. then i tried to turn it off while it was connecting to the charger but that just boot up again with the same red blinking light and 0% percentage. I'm on aurora sp on top of aurora v20. When i try the old battery everything is working ok like it charges and everythinh. Could someone help me out?

Strange
Try this connect your phone to usb power without battery inserted. Then turn on when phone boot insert your new battery into your phone let charge until green led or 100%. And install Battery Stats and post details about your batt.

dark_vader said:
Strange
Try this connect your phone to usb power without battery inserted. Then turn on when phone boot insert your new battery into your phone let charge until green led or 100%. And install Battery Stats and post details about your batt.
Click to expand...
Click to collapse
i've tried that nothing changed. i let it boot up without the battery then put it back in without pulling off the charger and it still seemed to be without battery just with the usb cable. i got back to official gingerbread, no rooting and stuff now but still doesn't charge. the weird thing is that the very first time that iconnected it to the charger, when the phone was off, the light started blinking red without phone getting into "battery screen" and after a while it was at battery charging screen. 15min later it was booted up and "no charging" status

Cybergiannis said:
i've tried that nothing changed. i let it boot up without the battery then put it back in without pulling off the charger and it still seemed to be without battery just with the usb cable. i got back to official gingerbread, no rooting and stuff now but still doesn't charge. the weird thing is that the very first time that iconnected it to the charger, when the phone was off, the light started blinking red without phone getting into "battery screen" and after a while it was at battery charging screen. 15min later it was booted up and "no charging" status
Click to expand...
Click to collapse
Okay. Ask Huaei to change your battery since it's damage for another one you have and can active warranty do that

[Solved; Ignore] Phone on "charge" at 0% Instantly turns off when charger is removed.

[Solved; Ignore] Phone on "charge" at 0% Instantly turns off when charger is removed.
As the title suggests, my phone will only turn on when the charger is plugged in and the battery stats say "0% Charging (AC) - 0s on battery".
Little background. I just flashed stock and AK 301 kernel as well as the latest libs. Phone turned on just fine, battery was at 50%.
I then decided to run Antutu for the hell of it to see if there were any performance changes etc.
Whilst Antutu was running the phone just powered off and wouldn't power back on. I had a red blinking light and that was it.
Eventually I managed to boot in to recovery after following advice to hold power + vol down for 15 seconds then plug the charger in.
The phone was on charge for about 3 hours with the LED still blinking at me.
When I managed to get in to recovery I flashed the only ROM I had on there after wiping all data etc. Which was Mahdi ROM.
Now when I turned the phone on, after many failed attempts, the battery icon is completely depleted with the charging icon inside the battery and as said in my first sentence it says 0% Charging and as soon as I take the charger out, the phone turns off instantly and won't turn back on nor will it blink until I put the charger back in.
Does anyone know whats going on? Could the battery have come loose somehow? I'd like to open it up but I don't have the required screwdriver to do so, anyone know any other way I can crack the case open without damage?
Any help or suggestions are most welcome. I can't return it on warranty as I bought this phone 1 year ago on the 4th June... Of course this had to happen 6 days after warranty expired!

I think I spoke too soon.
I just decided to hold the power button and vol down until the phone completely switched off. Turned it back on and now my battery says 32%.And as of writing this it's now up to 34%. So it's actually showing that it's charging now, whereas earlier the phone was on for about 20 minutes and said 0% the whole time.
Odd. That's all I have to say.
I can't delete my post for some reason. So I'll just flag it as answered. Sorry about that.