1100 and 2300 charging - GSM-Forum

HUM · 10-18-2005, 22:42

friendz in nokia 1100 and 2300 charging fault iz very common when charger connected to mobile nothing happened no sign of charging,can anyone successful to make this fault,plzzzz help.(with diagrams)i use search button but not find the authentic solution.

sto · 10-19-2005, 10:11

something to do with it charging circuit, i changed uem & software dun work. like you say no sign, nothing. just something very funny. bat + have 3.6 voltage. i think maybe cpu misstaking that battery is full. try the temp pin.

viks · 10-19-2005, 20:22

i think thiswill be the solution for u

viks · 10-19-2005, 20:30

if the part is ok then try this

gsm500 · 10-19-2005, 20:31

New board revisions don't have this resistor.

I think it is the UEM. If you check voltage in and voltage out of the UEM it seems to be lost in there. Phone is too cheap to bother with UEM change. Too much labour to remove glued BGA and a UEM (working one) is too expensive.

Curious to see sto changed UEM and no difference.

Makes me think again ?????????

saso · 10-19-2005, 22:09

I don't thing it is UEM problem becouse I got one 1100 who not charging
(even and show ) and I change UEM with new one (blank) and put charger
, phone start charging . Disconect charger and programm UEM with rpl make full factory reset and phone work at all BUT AGAIN NOT CHARGING

GSMARMOON · 10-19-2005, 22:44

New board revisions don't have this resistor[R100].changed UEM

viks · 10-20-2005, 06:59

open the phone Connect the charger socket to board,check voltage on fuse (K) both side must have charger voltage (8V) then self both side ,and one side of Zener diod.
if OK and the resistor near data cable is ok,and there is no voltage on both side of R 0.22 (big resistor that is ame as 3310) then UEM is faulty

MrHazeem · 10-20-2005, 17:26

90% of NOT CHARGING problem in nokia 1100 and 2300 and 2600 phone Due to UEM,

if the battery conatcts voltage out = 3.6 then try write pmm file, if not ---> UEm,

if u see the battery indicator ONLY on screen the goes off, then check lines from UEM to battery contacts (change any damaged capasitor or resistor)

Br

------------------
MrHazeem

mattakins · 10-20-2005, 21:15

I THINK MORE COMPREHENSIVE SOLUTIONS STILL NEEDED TO SOLVE THIS PROBLEM I HAVE TRIED ALL MY BEST IT DOES WORK

THANKX 4 UR GREAT EFFORTS

MATTAKINS

[email protected]

unlock2005 · 10-20-2005, 23:29

unlock2005 tst 100 100

nelson ikeh · 10-21-2005, 01:15

pls tell us more on this 1100 and 2300 not charging thanks

ea12345 · 10-25-2005, 17:13

It is 100% UEM fault

rajumobile · 10-25-2005, 17:42

Dear friends,

Start with measurements 1) Check both the charger pads on PCB for shorting. 2) Check resistance of +ve pad of charger on PCB for @ 2.5 to 4 Kohms. If this resistance is OK then no need to doubt for UEM. 3) Check charging resistor continuety with battery positive.

In case charging symbol appears for a while replace resistor as shown by Mr.Viks & Mr. SevgiGSM.

Regards.....

rajiv007 · 10-26-2005, 10:13

hi dear friends what rajumobile, viks, and other resp. member are saying 100% write
what i am telling you is follow BSI line (midle line of batt connector) most of time i am successfully done this job

10-18-2005, 22:42	#1 (permalink)
HUM No Life Poster Join Date: Jul 2005 Location: karachi Posts: 8,673 Member: 161728 Status: Offline Sonork: 100.1582708 Thanks Meter: 2,237	1100 and 2300 charging friendz in nokia 1100 and 2300 charging fault iz very common when charger connected to mobile nothing happened no sign of charging,can anyone successful to make this fault,plzzzz help.(with diagrams)i use search button but not find the authentic solution.

10-20-2005, 21:15	#10 (permalink)
mattakins Major Poster Join Date: Oct 2005 Posts: 32 Member: 189476 Status: Offline Thanks Meter: 3	Another Solutions Are Still Needed I THINK MORE COMPREHENSIVE SOLUTIONS STILL NEEDED TO SOLVE THIS PROBLEM I HAVE TRIED ALL MY BEST IT DOES WORK THANKX 4 UR GREAT EFFORTS MATTAKINS [email protected]

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10-19-2005, 10:11	#2 (permalink)
sto Crazy Poster Join Date: Jan 2003 Location: malaysia Age: 48 Posts: 55 Member: 20545 Status: Offline Thanks Meter: 0	something to do with it charging circuit, i changed uem & software dun work. like you say no sign, nothing. just something very funny. bat + have 3.6 voltage. i think maybe cpu misstaking that battery is full. try the temp pin.

10-19-2005, 20:31	#5 (permalink)
gsm500 Insane Poster Join Date: Oct 2003 Location: Europe Age: 50 Posts: 69 Member: 42007 Status: Offline Thanks Meter: 1	New board revisions don't have this resistor. I think it is the UEM. If you check voltage in and voltage out of the UEM it seems to be lost in there. Phone is too cheap to bother with UEM change. Too much labour to remove glued BGA and a UEM (working one) is too expensive. Curious to see sto changed UEM and no difference. Makes me think again ?????????

10-19-2005, 22:09	#6 (permalink)
saso Freak Poster Join Date: Jul 2001 Location: macedonija skopje Age: 55 Posts: 239 Member: 5292 Status: Offline Thanks Meter: 5	I don't thing it is UEM problem becouse I got one 1100 who not charging (even and show ) and I change UEM with new one (blank) and put charger , phone start charging . Disconect charger and programm UEM with rpl make full factory reset and phone work at all BUT AGAIN NOT CHARGING

10-20-2005, 06:59	#8 (permalink)
viks Freak Poster Join Date: Aug 2005 Age: 46 Posts: 207 Member: 168352 Status: Offline Thanks Meter: 18	open the phone Connect the charger socket to board,check voltage on fuse (K) both side must have charger voltage (8V) then self both side ,and one side of Zener diod. if OK and the resistor near data cable is ok,and there is no voltage on both side of R 0.22 (big resistor that is ame as 3310) then UEM is faulty

10-20-2005, 17:26	#9 (permalink)
MrHazeem Freak Poster Join Date: Jul 2002 Location: MAD Age: 50 Posts: 483 Member: 13545 Status: Offline Thanks Meter: 2	90% of NOT CHARGING problem in nokia 1100 and 2300 and 2600 phone Due to UEM, if the battery conatcts voltage out = 3.6 then try write pmm file, if not ---> UEm, if u see the battery indicator ONLY on screen the goes off, then check lines from UEM to battery contacts (change any damaged capasitor or resistor) Br ------------------ MrHazeem

10-20-2005, 23:29	#11 (permalink)
unlock2005 Junior Member Join Date: Mar 2005 Age: 49 Posts: 11 Member: 127919 Status: Offline Thanks Meter: 0	unlock2005 tst 100 100

10-21-2005, 01:15	#12 (permalink)
nelson ikeh Junior Member Join Date: Aug 2004 Location: south afric a Age: 48 Posts: 19 Member: 77462 Status: Offline Thanks Meter: 0	pls tell us more on this 1100 and 2300 not charging thanks

10-25-2005, 17:13	#13 (permalink)
ea12345 Freak Poster Join Date: Mar 2005 Location: GSM Age: 50 Posts: 164 Member: 130345 Status: Offline Thanks Meter: 10	It is 100% UEM fault

10-25-2005, 17:42	#14 (permalink)
rajumobile No Life Poster Join Date: Feb 2004 Age: 52 Posts: 593 Member: 54993 Status: Offline Thanks Meter: 47	Dear friends, Start with measurements 1) Check both the charger pads on PCB for shorting. 2) Check resistance of +ve pad of charger on PCB for @ 2.5 to 4 Kohms. If this resistance is OK then no need to doubt for UEM. 3) Check charging resistor continuety with battery positive. In case charging symbol appears for a while replace resistor as shown by Mr.Viks & Mr. SevgiGSM. Regards.....

10-26-2005, 10:13	#15 (permalink)
rajiv007 No Life Poster Join Date: Aug 2004 Age: 51 Posts: 1,064 Member: 78767 Status: Offline Sonork: 100.95137 Thanks Meter: 566	hi dear friends what rajumobile, viks, and other resp. member are saying 100% write what i am telling you is follow BSI line (midle line of batt connector) most of time i am successfully done this job