yashsingh1/xdaforums huggingface dataset:
[Nokia Lumia 900] stevebor1:
I have tried various key combos to reset, while in fully off and while on the logo and battery screens. After I hold for +20 sec and let go, it vibrates then tries to start up. None of these fixes anything. I am using Volume Down and Power Button.

So I left it on the replacement Lumia's charger overnight and it still sits on the at&t screen during boot. I also put it on a Apple iPhone charger, which it 5v 1A, and it eventually drained all the way to where only the keys would light up.

The one thing I noticed, is that the lumia responded differently to each charger. Some would get it to the batter screen, then reboot. Some would get it to the at&t screen, then reboot.

I tested the output of each charger by using the Nokia Diagnostics tool with my new Lumia. Most were 4.020~ volts and 200-400 mA, including the Apple charger.

The Lumia 900 charger rated around 4.020~ volts and 500-700 mA.

I have a Onda Android tablet charger that was 5.2v 1A, but rated at 4.065 volts and 700mA. That didn't work either.

...And now with my replacement lumia, I no longer have the loud rattle, but I do have the purple hue everyone is talking about. btw, the new one had the green dot on the box.
[Nokia Lumia 900] alodar1:
Try, from an off position, Vol Down +Camera...keep these down. Press power until the vibrate, then release. Keep the other 2 buttons down. Whenthe Nokia screenappears, you can release all buttons.

Works every time....queston is...do you have enough charge to allow this to occur.

There is a thread here on the button combo's. I started it, but there is alot of good feedback in the thread.
[Nokia Lumia 900] foxbat121:
Sounds like OP's Lumia behaves exactly like my co-worker's. No button combo will work to reset the phone.
[Nokia Lumia 900] alodar1:
button combo is not the only thing important. Its sequence and starting postion.

If the phone is on, turn it off. If its frozen, hold the power button until it turns off...about 10 seconds or so.

Once off, then the combination Vol Down+ Camera. Hold these until told to release.

Touch the power button to turn on...release at the vibrations...

Continuing to hold the Vol Down+Camera, wait until the Nokia screen. Then you can release. You'll be put through the setup sequence again.

Works every time, like a charm, but, the phone must be off.
[Nokia Lumia 900] foxbat121:
Yeah we did exactly that. Doesn't help. It doesn't work for every phone. Just like some L900s can be charged up and boot normally. Some can never recover. The manufacturing quality of Lumia 900 with so many variations of bugs should put Nokia in shame. I personally have to exchange mine because of the random capacity button issue.

So that is 2 for 2 in my own observations.
[Nokia Lumia 900] stevebor1:
Well I must say adieu to this phone and my pictures. Nothing seemed to work, so I sent it back.

Holding Power and the Camera button got me to the "download mode", Zune opened, and I then tried to restore to previous version, however it decided to reboot 30% into the process. Most likely due to it not having enough charge.

I got my SkyDrive set up on the new device. So no more losing any data if something fails again.
[Nokia Lumia 900] ATHORNFAM2:
i would have to agree with the guy that posted second the phone is rated for a higher powered charger. but i would try looking at the specs of the wall charger amps and watts see if thats correct for the phone and if thats true try looking into the usb port on the phone for dust and lint. maybe even try another battery
[Nokia Lumia 900] alodar1:
Psst....for which phone? You know the Lumia does not have a removable battery? I hate when you guys test us like this....:p

---------- Post added at 03:13 PM ---------- Previous post was at 03:09 PM ----------

YOu know its volume down + camera from an off position that resets this thing...right???
[Nokia Lumia 900] hx4700 Killer:
The wall charger is 5v 1 amp... nothing special there. My HTC chargers all handled that and were easily more.
[Nokia Lumia 900] Zhariak:
Creepy,

Same thing happened to me.

Using phone, the battery was ultra low, figured I'd plug it in when it started to complain, but never received any messages. The phone just turned off.

Plugged it in:

1) 5 minutes, screen didn't come on

2) Out nowhere, backlight turns on for a minute

3) backlight turns off for 4 minutes

4) I unplug it, as I do it vibrates and backlight turns on

5) plug it back in, backlight turns off

6) 5 minutes later, battery image shows up on screen in red, disapeers after a minute

7) Phone sat for 5 minutes doing nothing, I unplug and plug back in, it turns on, goes to the battery on screen again for 10 minutes.

8) Finally Windows Phone starts up, it starts presenting battery errors (even though it's plugged in). Finally after 60 seconds it makes the plugging in sound, and starts charging.

I google'd and found this thread! Weird!

Another thing I noticed, is even when battery is fine, and you plug it in there's a delay before device recognizes it. Seems like there's something going on between hardware and software, just like the delay with the touchscreen (which is aggravating)...

Any word on this?
[Nokia Lumia 900] Pigseer:
Mine is bricked too

Same behavior, nothing seems to help. I was waiting patiently for an unlock code but I guess I have a bigger problem now.
[Nokia Lumia 900] hx4700 Killer:
Go get supersports tools in the dev forum. It adds drivers so when you plug in the phone you can recover a bricked device.
[Nokia Lumia 900] Pigseer:
Is there a link for those tools?
[Nokia Lumia 900] hx4700 Killer:
In the Developer section for the lumia 900 there is this post from supersport:

http://xdaforums.com/showthread.php?t=1605144

The nokia care suite is what I am talking about.
[Nokia Lumia 900] Zhariak:
Does anyone know if/when this is going to get fixed?

I'm nervous to even let my phone get close to dead, considering when it died the other day it happened suddenly only after one battery warning.
[Nokia Lumia 900] peterfnet:
I'm glad I found this thread. I feel like an idiot since I haven't synced my photos/videos from the phone to the computer for a long time. (WiFi synced stopped working....)

The phone battery was low and battery saver was turned on. I disabled battery saver for no good reason. An hour later, the phone was off. I plugged it in and the phone started going through the update loops like the others mentioned.

These are approximate times

(1 second ) button backlight turns on

(5 seconds) The screen goes all white and the button backlight is on

(5 seconds) The Nokia logo appears, button backlight still on

(18 minutes) The AT&T logo appearss, button backlight still on.

The phone will restart and continue the cycle
[Nokia Lumia 900] Zhariak:
It's almost as if there's some software control that has to enable battery charging, instead of just the device hardware starting to charge when plugged in...

Without juice to allow the software to allow the device to charge, you aint get no charging! hahaha
[Nokia Lumia 900] peterfnet:
Just to follow up from my previous post. After a full night of being plugged into the Nokia charger, the phone is still malfunctioning. It's constantly rebooting and going through loops. I even get the low red battery image once in a while.

I contacted Nokia support. They asked me to ship the phone to them by completing the repair phone forms on their site. I should be getting a UPS label soon via email.
[Nokia Lumia 900] jimski:
Thanks for the post peterfnet. My guess is you will never find out from Nokia if it is a software bug or something specific to you device, but good information in any case. Until Nokia states something in a firmware update note, I will avoid completely draining my battery.

Just a guess, but as the L900 takes a few seconds to detect a power source, I think they leave the power contacts open till detection, and then close the contacts, maybe to prevent shorts or arcs. When the battery totally drains, some part of that code is getting confused.

Please keep us posted.

Sent from my Lumia 900 using Board Express Pro
[Nokia Lumia 900] hx4700 Killer:
Wild, I guess I was just lucky when I drained mine. I was a bit freaked when it wouldnt come back on right away but after about 2.5 hours total I got it back on by fiddling with it, plugging in, unplugging until it came on and charged.

I fiddled with it at first to get it to come on then left it for 2 hours then fiddled with it off and on for about 30 minutes and then it came on and charged up.
[Nokia Lumia 900] Jc61990:
not sure if anyone's tried this yet but #10 on this website http://nokiaconnects.com/2012/03/28/top-10-nokia-lumia-tips-and-tricks-everyone-should-know/
[Nokia Lumia 900] Alpha-Male:
New Lumia 900 user and I have the exact same problem. In a lengthy conversation, I inadvertently drained the battery.

Left it charging overnight, but it won't boot. Goes through the cycle showing the Nokia splash screen and the AT&T "Rethink getting to use your phone is Possible" image. Then after a while a reboot.

Occasionally it shows a low battery screen. Won't charge, won't boot. Have tried all the key combos, plugging + unplugging, usb vs charger - even car charger hoping something "different" would happen.

Replacement is on the way - but overall this is very disappointing.

When it worked, it was an outstanding device - but this is a pretty serious flaw.
[Nokia Lumia 900] pistol44:
Just wondering, is this a confirmed issue with EVERY Lumia 900 or only those posting in this thread?

Still waiting to unlock mine so not sure if I should be avoiding a full drain once I begin using it.
[Nokia Lumia 900] kkrull:
"is this a confirmed issue with EVERY Lumia 900?"

I think what you want to say is "has anyone discharged their phone and not had this problem on a sub 350 mA charger? Has anyone been unsuccessful at charging thier phone from a dead state from a 500 mA charger?

I discharge my phone all the time, and on many chargers it is a problem, but on some chargers (Original Nook and Samsung Focus) and some PC USB ports it is ok. Other chargers (pre-iPad era iPhone charger) cause the endless loop.

Currently at 6% phone charge my Original Nook charger which is better shows 800 mA and the original iPhone charger which was a problem yesterday shows 400 mA. But one USB port that has more than once resurrected the phone from the discharging death cycle shows only 375 mA.
[Nokia Lumia 900] Zhariak:
A lot of people are having this problem with their charger that was shipped with the Lumia 900.

I had this problem with my Lumia 900 using the factory shipped charger.
[Nokia Lumia 900] hx4700 Killer:
My former few phones were winmobile HTC's. All their chargers were mini USB so I bought a handful of mini to micro adapters off eBay for $5 and use them still. They all charger over 1A.

While it took a couple of hours for it to come on I didnt notice a "looping" effect but it did come back on eventually.
[Nokia Lumia 900] ragingclue:
Mine has died two times, both times resurrected successfully using the wall charger provided with the device.
[Nokia Lumia 900] svaldera:
It is recommended to use the Nokia wall charger to get best results for battery charge.
[Nokia Lumia 900] foxbat121:
The Nokia wall charger is rated 5V 1A. And yet, it can't resurrect my friend's L900. So, it is completely a random luck if your phone can or can't be resurrected. I would NEVER let mine run down for this reason.
[Nokia Lumia 900] Alpha-Male:
Using the Original Nokia wall charger has made no difference to this situation for me - it was the first thing I used.

Thinking the charger itself may be having an issue, I tried my wife's Lumia 900 charger to no avail. I also tried usb via computer and the car charger I purchased with the phone from AT&T.

All resulted in the same rebooting pattern - with the phone not starting up nor charging as needed.
[Nokia Lumia 900] alodar1:
As we all know, WP will power on when connected to a charge of any sort. However, if the battery is drained, it may not have enough charge to maintain the on position, and will shut off. As long as you keep it plugged it, this process should repeat, until enough of a charge is obtained to not require the shut down process.

I wonder if this is what is being referred to as the reboot loop? How long have you left it on the charger. I've heard of it taking a couple of hours to work through this....
[Nokia Lumia 900] foxbat121:
It is certainly a bug in the firmware. When my Zune drained its battery, it will charge until it reached certain battery level before it boots up.

With my friend's phone, we keep it charged for 4 to 5 hours before gave up and replaced it.

Normally it won't be an issue for phones with replaceable battery. But for Lumia 900, Nokia really needs a better and careful design to avoid this issue. I heard Lumia 800 has the similar trouble and a firmware update addressed it.
[Nokia Lumia 900] Alpha-Male:
I'm sure this is the boot loop - The longest I left it was about 16 hours....
[Nokia Lumia 900] Alpha-Male:
Replacement phone arrived today....time to put it through its paces and make sure nothing is wrong with it.

Really like the Lumia....but it'll take me a while to "trust it".
[Nokia Lumia 900] LastBattle:
Hey guys, I am not sure why you guys are experiencing this with Lumia 900 however it doesn't even happen once on my Lumia 800.

If you are stuck somehow, you may try a soft reset by holding on Volume Up + Down + Lock for 20 seconds and it'll restart automatically.
[Nokia Lumia 900] peterfnet:
Following up with you all again, I did try a hard reset. Still refuses to completely boot.

Anyone had any problems with Nokia's support site? I've been back and forth on the phone with them for a while and submitted multiple repair requests. I never receive a ship label in my email.
[Nokia Lumia 900] Jc61990:
call them back to confirm your email address, those guys in the call center can never understand you correctly, they always screw up my email address
[Nokia Lumia 900] peterfnet:
I called again; I was escalated again. I was told that I would receive a call back from someone. I was given no other option. :mad:
[Nokia Lumia 900] Picard_8525:
I was able to replicate this issue by draining my L900's battery completely. Plugged in my Captivate's wall charger rated @ 5V 750mA and boom! Bootloop!

Since i didn't have the Nokia charger that came with my phone, I tried using a Luxmo car charger rated @ 5V 1000mA and the L900 charged as usual and booted normally (no bootloop)... unplugged the car charger after 5 mins then plugged back the Captivate wall charger while the phone is ON and it continued charging normally.

It's safe to assume therefore that a lower-rated charger won't be able to handle the power requirements of a 100% drained Lumia 900 to complete a startup boot.
[Nokia Lumia 900] Spectre51:
I saw this issue initially when I got my phone as the battery was completely dead. If I remember right I was using an iPhone charger. Switched to the included charger and still had the issue. Let it sit for a while and it came to life no problem. Hasn't drained it since then.

Sent from my Lumia 900
[Nokia Lumia 900] Jurgestonian:
I'm having the same issues on my Lumia 900. I had another shipped out to me, but I haven't given up hope. I had it plugged into a wall charger at night and I noticed something odd. After the phone tried to boot up with a dark screen and lit buttons, it darkened the lit button row, and a ghostly image of what looked to be a wood-grain appeared on the screen. It's kinda creepy and I'm not sure of what it is, but it seems that some kind of image has gotten stuck in the phone boot sequence.

I want to take a picture of it, but its only noticeable in low-light.
[Nokia Lumia 900] foxbat121:
It's manufacturing defects of AMOLED screen. Large percentages of the screens have this, even on Samsung phones (Samsung manufactures AMOLED screens). Your only solution is to exchange for another one and pray the new one is better.
[Nokia Lumia 900] chanakya.wp7:
My battery got drained yesterday night. And now I am Stuck at ATT boot logo and its just keep getting restarted every 5 min or so. I don't want to replace the phone as after a lot of try I got it unlocked from ATT. Is there any other solution for this problem.

Sent from my PI86100 using Board Express
[Nokia Lumia 900] stevebor1:
If it does not charge with the oem Nokia Lumia charger, then you will have to get it replaced.
[Nokia Lumia 900] redwhiteandblue:
I don't think it even has to be a 100% drained battery. I noticed something odd the other day when I took my phone out to test the Nokia Drive app. As I mentioned in another thread, on the way home I lost the GPS signal so tried resetting the phone to get it back. As the phone was connected to the in car charger, it turned itself back on, and then went into a boot loop, only flashing up the low battery screen and then immediately rebooting. The really odd thing about this was, the battery was already 50% charged - I hadn't drained it. I had to reach up and unplug the charger to stop this happening.
[Nokia Lumia 900] bman212121:
Does anyone having this issue have a 2nd battery? I'm wondering if you could simply swap the battery to a 100% charged one and be able to get around the problem. If you had two batteries then you could always have a spare charged up for when you forget to turn off the phone. Once the phone is booted, plug it into a charger and you should be able to remove the charged battery and put the dead battery into the phone while it is still on. Then it should be able to charge that battery back up.

EDIT: Hmm... that might not actually work. I just tried taking the battery out on my trophy and when I put the battery back in the phone rebooted.
[Nokia Lumia 900] Picard_8525:
Unless they pry their Lumia 900 open, none of the owners here have a 2nd battery. You do realize that the Lumia 900 does not have a back door for the battery right? :D
[Nokia Lumia 900] ramanan86:
Folks,

I have had this issue since day one and the only way to get around the loop is to plug your phone in for 3-5 mins without turning it on....then unplug and turn the phone on.....after the phone boots or you see the Windows phone logo; you can plug the charger back in. I have done this numerous times to test it out and it works.
[Nokia Lumia 900] Picard_8525:
I once again drained my L900 completely but this time used the supplied charger. Everything worked fine (no bootloop). So I guess this issue is device-specific, depending on what batch you have.
[Nokia Lumia 900] peterfnet:
Or be forced to return it for a replacement from Nokia??

Whatever magic fix you're talking about is not a blanket fix.
[Nokia Lumia 900] arunnbio:
YES!

Yes the same issue happened with my lumia 900. Went to nokia care, its still in nokia centre itself, it ll take more than a week to get back my phone.
[Nokia Lumia 900] xxxrichievxxx:
I don't know if anything like this has hapened to anyone but, while i was at work, i plugged my headphones into my lumia (For the first time) and the phone went all black, rebooted showed the nokia and the at&t splash screen. and resumed like normal.

almost had a heart attack!
[Nokia Lumia 900] foxbat121:
There is a separate thread talking about this rebooting issue. It happens to a few ppl.
[Nokia Lumia 900] Ap0c3030:
Your phone is now as useful as a brick.

I am a proud owner of my...third Lumia900

I bricked my first 2 in the same fashion you described. Oddly enough I just came home with my latest.

The first time I replaced it ATT said it was probably software issue due to an app.

Possible I guess. Then it happened on the second phone...

Two things I did on the phones that bricked that I realized and I mentioned it today to the ATT rep as to what I thought was the error or the actions that lead to the error.

In both instances the battery was near drained and I recieved the critical warning telling me as such. I plugged it in and proceeded to use my phone as soon as I plugged it..and in both instances it got stuck in the power cycle...I had not installed any apps other than what came default on the second phone..So it couldn't have been that. Was it the update? Doubt it because the updates were done well before the issue happened. So the only common factor (other than me, the user) was that I waited till the battery was almost dead before plugging it then used it immediately after I plugged it. I expressed that today with the rep and he claims to have received an email that describes that issue exactly as the cause.

So there you have it, don't wait 'till the battery is nearly dead, plug in and immediately use otherwise your lumia will be useless and you may as well start using it as building material or target practice.
[Nokia Lumia 900] turtledude558:
Looks like they need to push out a software update or something as this sort of situation shouldn't cause the device to become unusable.

I'm already waiting for a 3rd replacement as my first 2 phones experienced this boot loop after their batteries died. :(
[Nokia Lumia 900] cwiley2566:
I can agree with this guy. I have had this problem a couple of times and so have friends. Allow it to charge a few minutes, then UNPLUG the phone from the charger and turn it on; allow it to boot up. Then plug it back into to the charger. Has worked every time for me.

Not saying this is right and isn't a bug; this is just a workaround until Nokia can fix the issue with a firmware update.
[Nokia Lumia 900] robvde:
This is really disappointing

Same overhere. Drained and it never comes accross the boot screen. So that's quite an expensive brick.

Went to Nokia Care but since the phone came from South Korea through Europe ending up in Dubai they could not accept it since Nokia doesnt seems to provide international warranty.

It's just a treshold that is too low in the firmware.

It's supposed to be a flagship but they end up with something with a silly bug.
[Nokia Lumia 900] robvde:
Disconnect/Reconnect battery

Has anybody tried to open the device and disconnect and reconnect the battery ?

Off course you loose your warranty etc etc. but since i have no Nokia Care center close to me that is helpfull, I might not care about that one
[Nokia Lumia 900] redwhiteandblue:
How is it supposed to work when the battery is drained?

Yesterday I found my phone had drained and turned itself off during the night. When I powered it on it just gave me the battery critical sound, said "goodbye" and turned off again. I put it on charge and it switched on but stayed on the "battery low" screen for several minutes, then it booted and was fine.

Is this how it is supposed to work or is this Nokia's fix in the latest firmware for this issue? (I'm assuming I have the latest firmware in mine as it's only about a month old.)
[Nokia Lumia 900] metroidnemesis13:
This is what I do as well. Usually it takes me 20 minutes or so though. Just let it restart and freak out for 20 minutes, come back, and then try to turn it on. It's annoying but I am sure it is some low level firmware issue that is probably pretty common.
[Nokia Lumia 900] robvde:
Good i did it, didnt work out. Neither getting it a nice treatment with the hairdryer.

Have to cut my losses, go back to my hd7 and wait for WP8 and probably not a Nokia again.

Can not believe if you make such a big bet on windows phone that all your models are actually having the same battery issues and you cleary dont care. Shame on you Nokia!
[Nokia Lumia 900] Emppu78:
[A] 100% Drained Lumia 900 Battery Will Not ReCharge - Try high power charger

iPad charger rated for 2.1 amps was able to charge a Lumia900 that had a battery fully drained. The phone kept trying to boot up when connected to any other charger and also did the same with the iPad charger at first.

Assume that it takes a charger that can supply more current than start-up current.

Failed first trying

1. iPhone charger (0.5 A)

2. no-name charger (0.7 A)

3. Car charger (0.9 A)

4. Reset as it didn't have enough battery

5. iPad charger for 15 min (kept rebooting)

Three days later tried one last try with iPad charger and 5 minutes later screen was black, and everything functioned when powering up.