Hey,

I've searched for a good while about this issue but I can't find anything similar to my issue.

Background:

I had previously installed Uboot PR13 in anticipation of installing another OS but I haven't gone any further.

[phone would switch on fine, had it running like this for 3 weeks fine]

The problem occurred like this:

In the car the battery charges via USB connected to the stereo, this normally charges it great, until one day when I disconnected it after an hours drive and it showed only 60 percent remaining.

[ I investigated this, and sometimes it would say "not charging" about 2 minutes after saying "charging" when connected to the USB.]

When I went to bed I set my alarm and turned the phone off because the battery was still at 60%

Needless to say my alarm didn't go off and I was late for work.

The phone wouldn't turn on. I plugged it into the car, and it "boot looped" [penguin would show, screen would be really dull, then it would loop and loop]

I removed the battery for a couple of minutes, then plugged it back into the USB, and the orange light came on permanently, I left it like this for about 10 minutes, then tried to boot it.

The screen lit up, I tried to write "run noloboot" by which time the phone switched itself off.

This happened a couple of times till eventually the orange light started blinking. I let it charge for 5 minutes then turned it on. Got it booted alright and the battery showed 60%!!

Now this problem seems to happen if I turn the phone off overnight, I can turn it off for a minute and it'll reboot fine, but not overnight.

This happened again on Friday morning. I got it booted quicker and the battery status was 100% and it didn't need charging all day!!


I've removed uboot by flashing the device, but haven't flashed eMMC. The problem still remains.

Can anyone shed any light on this issue, it's pretty annoying!

Thanks

Bump,

Any suggestions at all?

get a new battery?

also see Battery Tests, Homemade 3000mAh XL Battery & Q&A (GOTO POST #1!!!!!)

the age of the device isn't indicative of the performance of the battery
(the original NOKIA battery included in my (new) N900 was not working properly & i barely made it thru the day, even with only network on 2G & very moderate use; 1st tried a OEM which turned out to top out @ 800 mAh (vs. 1320 mAh for the original)
eventually bought an original one for a few bucks more & been happily going thru a couple days ever since )

The fault doesn't seem to indicate that. As I said, the battery shows a good deal of charge once I get it booted, and will stay on and function correctly, even if I leave it overnight, as long as the device is switched on, it is fine.

It's when it is turned off long periods of time that it won't boot again.

Why would that indicate battery? I am asking.

Thanks.

when the device is off, the battery is completely "on its own";
even though the powered off device still uses a tiny little bit of power to keep time, this is negligible (at least over a few days or even weeks).
the management of the battery is indeed part of the device, but that the devices finds the battery empty after a power off lasting more then a few seconds isn't the device's problem, methinks.
it is sign of a problem with the battery.

just my two cents

Okay I will try another battery, what's the cost of a genuine one, as on ebay a "genuine" one can be as little as £2.50, or £9.

Thanks for the help.

as linked a few posts back, look to my thread for battery advice/buyers guide before just buying of ebay and having a pretty high % of being ripped off, thats why i made the thread, to find the best battery and to let you all know where NOT to buy

personally i would go (actually went for the last one) for the £9 one;
the OEM one i bought for 6 or 7 £ a few months earlier was doing okay but only had 800 mAh (instead of the 1320 mAh advertissed)
the last one tops of @ 1230 mAh, but according to the author of the thread i posted earlier, the logic of the device is showing less then the actual capacity.

going to a NOKIA care center () is pointless, unless it is a major one; they'll just say they'll take the device in & send it to NOKIA...

Install 'powertop', do this, post results.

With respect to purchasing a new battery, it is CRITICAL you listen to this guy.

hehe nice one vi_

Again go to my thread and instead of a Original get a Scud, Polarcell or Japod.

The Scud is the best and will give you much more runtime.