8210 with draining battery

[Peter]

I have a 8210 that drains its battery. even when its turned off the battery runs down in about 16 hours. The problem is not the battery, since it is a new one.
Have update mcu, ppm and eeprom but didn't solve problem.

Anyone an idea as to what kind of hardware problem this might be?

[Kjetil]

Hey Peter:)

I've got some of the same problem.
I have to 8210 wich I bought to new batteries for.

One of the phone is using more battery then the other one.
This was normal i thought because there had been some water damage on that phone.

But when i used the menus 20-23 in netmonitor mode. I saw that both phones used equally much power. (3mA in stanby and ca 400 when calling) so i guess there is something else??

I do want to try the energy calibration in wintesla, but I cant get my cracked versions work:(

So check for water damage (around the power ic)
And check the power consumption in menue 23.

[buddy]

my friend it's a hardware prob,so try to change the PA

[K-Meleon]

Hi all!!

I have(had) the same problem. Battery was empty after 5h, so I bought a new one (with 1000mAh). This battery was empty after 16h, too. I opened the case of the 8210 and saw that nearly every IC has some kind of salt on every pin.

I bought it used on ebay, so I don't know the "history" of this 8210 and this salt. I guess it was flooded with alcohol, sweat or condensed moisture. The seller said that this mobile phone was 100% working (hahaha) :-((.

I analysed the impedance between the "plus" and "minus" pin of the phone: It was 400 Ohm, that's pretty low, I think. So I extracted the PCB from the case & everything else and flooded it in 94% alcohol, while I was carefully brushing over the PCB and the devices. After the first time I did this, everything was working OK and the problem got better but not good enough, so I flooded it again totally and let the PCB lay in the alcohol about 1,5h. After I dried and assembled it, the vibra and LEDs were on all the time, then I touched the SMD IC (TM23A) and it was really hot. I guess the beeper wasn't dry enough, so that the driver IC was nearly short-circuited. After the last flooding the 8210 had an impedance of about 10 ohm, which is absolutely low, but after the SMD-IC melted it now has over 7kOhm, so I think the first problem is solved, but now I need to replace the LED driver IC, because the LEDs are lighted all the time.

I hope I could help you...perhaps it is the same problem you have!
Measure the impedance between the + and - pin! My phone
drains current (??, sorry don't know the right word), while it is switched off, too (that was before I flooded it with alcohol)!

Best regards,

K-Meleon

[Kjetil]

Thanks for helping me guys:)

I have actually messured the current the phone is using in different states:

Of state is about 0,12mA witch is wery good i think
on state with no net 2-4 mA variates
on state with net up to 100mA (pulses) not good

So i belive it is a error with the ccont ore battery controller chip?
I vill do some more mesuremet when I got time:)

Maybe I will try to change PA and/ore cean it with alcohol for a longer period of time.

Be vell
Regards
Kjetil