Problem with Galaxy SII

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bespechnik2013-01-22 19:59:42

Android

bespechnik, 2013-01-22 19:59:42

Already wrote on w3bsit3-dns.com, but no one can help for quite a long time ... I hope for you, experts!

Situation: it is discharged even in the off (just off, not sleep) state, and actively. That is, it loses 20-30% of the charge overnight.
Previously, there was a replacement for the USB connector board and a battery replacement for the original 1650 capacity. The old one was inflated, the lid did not even close.
I did a test today - I took out the SIM card (simply because I put it in another phone), left it to lie for 3 hours turned off. Lost about 7% of the charge. Then he pulled out the battery and also left it for 2.5 hours. Also lost 10% of the charge.

That is, simple logic suggests that the battery is to blame. But a certain amount of doubt still remains. The question is, is there any other way to check it? In fact, the phone suits everyone, but such glitches make you think about replacing, there is no extra money, and so on ... What to do in short?

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4 answer(s)

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TheEternal, 2013-01-22
@TheEternal

If the battery has changed, then at first the Fuel Gauge chip, as it is called on XDA, may be wrong.
If the phone is rooted, reset its calibration in the recovery.
But in general, a loss of 10% per hour in the off state is not at all normal. Moreover, it is not particularly clear how this can be if you do not take dead iron into account.
Try to fully charge it, turn it off, wait 12 hours - well, logically, it should go to zero or close to that, then turn on and drive some kind of YouTube or Yandex.navigator, they eat a lot of batteries. See if it lasts long.
By the way, original and not very SGS2 batteries on eBay cost a penny with free shipping.

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elgordo, 2013-01-22
@elgordo

Generally speaking, if the phone is under warranty, you don't need to deal with all this. If not...
You can simply measure the current consumption of the battery when the phone is turned off. Connect ammeter in series. But for this, of course, you need to make some equipment.
When the phone is turned off, 99% of the circuit is de-energized. Under the current, only, in fact, the m / cx itself, which is responsible for the power supply. Either it eats, or the board is defective with current leakage: this is also possible - the technologies are complex, maybe somewhere there is a small contact where it does not need to be.
Check the battery itself - just leave it out of the phone overnight and see if it's dead or not. Measure the voltage on it in the evening and in the morning.
In general, of course, phones with such symptoms are the most disgusting thing. And it is difficult to show how marriage is, and it is not easy to diagnose.
Try it on the dedicated forums. Some kind of unlockers.ru or mobile-files.ru. There people have a lot of experience, they will probably tell you.

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iLbstr, 2013-01-22
@iLbstr

I had a similar situation on SII - the phone was discharged very quickly (I didn’t try it in the off mode, but it also consumed the battery in an hour in sleep mode). The reason for this was a closed contact on the MicroUSB port (the phone periodically "woken up" from the off mode, believing that USB was connected to it). I had to clean it, but when I cleaned it, the problem went away.

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Maxim, 2013-01-23
@Bublik

If the battery lies and is discharged, then 100% is a battery.