NOKIA 7250 DEAD AFTER PUT 12V ON SMALL BATERY INSIDE PHONE..urgent help - GSM-Forum

crossings · 12-08-2004, 15:48

Hi , I Put 15v Directly On Pcb Were Small Battery Is It Because Was Oxidated And Only 0.35v. Now Phone Is Dead.. Flasher Works , I Flashed Mcu+ppm+cmp Still Dead. Phone Was Wornkig Ok Before 15v To Small Battery Inside Phone.

Anyone Can Tell Me What To Change ?

Please Urgent Need Help

mtmc · 12-08-2004, 17:11

hi
u have to check the short circut in the vbat
1) uem
2) P.A
3) any other Capacitor

br

gabiz_ro · 12-08-2004, 18:02

why you do that?
was better to remove little batterie and replace with new one,even if you are trying to recharge this little batt when was desoldered how long life of batterie 2-3 day maybe,so is not a solution to do what you do.now try to find if somewhere is a shortcircuit (and first check little batterie maybe he is shorted but i don't think) and replace defective component.
P.S. and never try this again.

CyberoptiK · 12-08-2004, 22:32

Change UEM

GreetZ

crossings · 12-09-2004, 10:20

thank you! UEM change it ,work ok now.

CyberoptiK · 12-09-2004, 18:03

You R wellcome.

GreetZ

12-08-2004, 15:48	#1 (permalink)
crossings No Life Poster Join Date: Mar 2002 Location: LONDON Age: 58 Posts: 790 Member: 9897 Status: Offline Thanks Meter: 7	NOKIA 7250 DEAD AFTER PUT 12V ON SMALL BATERY INSIDE PHONE..urgent help Hi , I Put 15v Directly On Pcb Were Small Battery Is It Because Was Oxidated And Only 0.35v. Now Phone Is Dead.. Flasher Works , I Flashed Mcu+ppm+cmp Still Dead. Phone Was Wornkig Ok Before 15v To Small Battery Inside Phone. Anyone Can Tell Me What To Change ? Please Urgent Need Help

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12-08-2004, 17:11	#2 (permalink)
mtmc Freak Poster Join Date: Aug 2004 Location: www.Tools4Gsm.com Age: 46 Posts: 289 Member: 79725 Status: Offline Thanks Meter: 5	hi u have to check the short circut in the vbat 1) uem 2) P.A 3) any other Capacitor br

12-08-2004, 18:02	#3 (permalink)
gabiz_ro No Life Poster Join Date: May 2003 Location: Romania Age: 48 Posts: 515 Member: 29006 Status: Offline Thanks Meter: 28	why you do that? was better to remove little batterie and replace with new one,even if you are trying to recharge this little batt when was desoldered how long life of batterie 2-3 day maybe,so is not a solution to do what you do.now try to find if somewhere is a shortcircuit (and first check little batterie maybe he is shorted but i don't think) and replace defective component. P.S. and never try this again.

12-08-2004, 22:32	#4 (permalink)
CyberoptiK No Life Poster Join Date: Sep 2003 Location: GermanY Posts: 972 Member: 38922 Status: Offline Thanks Meter: 35	Change UEM GreetZ

12-09-2004, 10:20	#5 (permalink)
crossings No Life Poster Join Date: Mar 2002 Location: LONDON Age: 58 Posts: 790 Member: 9897 Status: Offline Thanks Meter: 7	thank you! UEM change it ,work ok now.

12-09-2004, 18:03	#6 (permalink)
CyberoptiK No Life Poster Join Date: Sep 2003 Location: GermanY Posts: 972 Member: 38922 Status: Offline Thanks Meter: 35	You R wellcome. GreetZ