Startup problem with NOKIA - GSM-Forum

cris · 08-12-2002, 17:22

I have problems with some Nokia terminals (6210, 8210) about s tart-up. If I use normal and full battery the phones DO NOT start-up. But if I use an extermal power supply like dummy battery the phones work normaly. For dummy battery I use Ubat + 1volt (3.6 + 1 = 4.6Volts).
I replaced charging IC, CCONT IC and COBBA IC... But no results
Have anybody a solution for this?
Thanks in advance!

george gsm · 08-12-2002, 20:27

hello cris,
i'm not sure but change the flash
geo

cris · 08-13-2002, 09:23

Hi George,
I tried to replace flash IC to other phone, rewrite it, but after this the phone swiched down in 5-10sec. I don`t now, maybe it`s not corectly replaced...

willy · 08-13-2002, 22:42

Cris,

you can do this.

Put a resistor 22K ohm, between BSI to GND
then use power supply to VB + and GND
then 4V-4.5V , see phone will power on or not !

Willy

Quote:

Originally posted by cris
I have problems with some Nokia terminals (6210, 8210) about s tart-up. If I use normal and full battery the phones DO NOT start-up. But if I use an extermal power supply like dummy battery the phones work normaly. For dummy battery I use Ubat + 1volt (3.6 + 1 = 4.6Volts).
I replaced charging IC, CCONT IC and COBBA IC... But no results
Have anybody a solution for this?
Thanks in advance!

08-12-2002, 17:22	#1 (permalink)
cris Freak Poster Join Date: Oct 2000 Location: Romania Posts: 305 Member: 2375 Status: Offline Thanks Meter: 4	Startup problem with NOKIA I have problems with some Nokia terminals (6210, 8210) about s tart-up. If I use normal and full battery the phones DO NOT start-up. But if I use an extermal power supply like dummy battery the phones work normaly. For dummy battery I use Ubat + 1volt (3.6 + 1 = 4.6Volts). I replaced charging IC, CCONT IC and COBBA IC... But no results Have anybody a solution for this? Thanks in advance!

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08-12-2002, 20:27	#2 (permalink)
george gsm No Life Poster Join Date: Jul 2002 Location: Bucharest-Romania Age: 51 Posts: 1,160 Member: 14200 Status: Offline Sonork: Sonork id Thanks Meter: 117	hello cris, i'm not sure but change the flash geo

08-13-2002, 09:23	#3 (permalink)
cris Freak Poster Join Date: Oct 2000 Location: Romania Posts: 305 Member: 2375 Status: Offline Thanks Meter: 4	Hi George, I tried to replace flash IC to other phone, rewrite it, but after this the phone swiched down in 5-10sec. I don`t now, maybe it`s not corectly replaced...