i9300 dead after chang usb socket - GSM-Forum

tuggigsm · 06-27-2014, 16:56

hi need help.
i have changed usb socket. i9300 no power on after that.
no connectin no charging, still dead.

SHIBU13 · 06-28-2014, 09:18

maybe you have damaged emmc. by over heat

ricardomonterio · 06-30-2014, 00:16

- Double check your battery for volts with multimeter
- carefully inspect usb replacement with lighted magnifier
- check for volts to usb pins on circuit board
- check for volts at the battery connector

arvaser · 07-03-2014, 07:23

Hi, I have had the issue before.. Probably the flux shorted or something because after cleaning well the board with IPA or 99% alcohol I let the board dry for 10 minutes and than it worked... In case it doesn't help remove the charging socket you soldered and test if device works.

tuggigsm · 07-04-2014, 02:48

i9300.JPG

emmc is ok.
have removed socket no power.

jakkarzoya_2511 · 07-04-2014, 04:30

check vbat line its sort ... mybe some capacitor is damage on vbat line so check one by one no more hint ...

06-27-2014, 16:56	#1 (permalink)
tuggigsm Junior Member Join Date: Oct 2007 Location: Germany Age: 46 Posts: 37 Member: 604209 Status: Offline Thanks Meter: 2	i9300 dead after chang usb socket hi need help. i have changed usb socket. i9300 no power on after that. no connectin no charging, still dead.

07-04-2014, 02:48	#5 (permalink)
tuggigsm Junior Member Join Date: Oct 2007 Location: Germany Age: 46 Posts: 37 Member: 604209 Status: Offline Thanks Meter: 2	i9300 dead i9300.JPG emmc is ok. have removed socket no power.

06-28-2014, 09:18	#2 (permalink)
SHIBU13 No Life Poster Join Date: Sep 2007 Location: Calicut Posts: 783 Member: 592544 Status: Offline Thanks Meter: 97	maybe you have damaged emmc. by over heat

06-30-2014, 00:16	#3 (permalink)
ricardomonterio Junior Member Join Date: Dec 2013 Posts: 6 Member: 2083929 Status: Offline Thanks Meter: 0	- Double check your battery for volts with multimeter - carefully inspect usb replacement with lighted magnifier - check for volts to usb pins on circuit board - check for volts at the battery connector

07-03-2014, 07:23	#4 (permalink)
arvaser Freak Poster Join Date: Jun 2013 Posts: 178 Member: 1952487 Status: Offline Thanks Meter: 43	Hi, I have had the issue before.. Probably the flux shorted or something because after cleaning well the board with IPA or 99% alcohol I let the board dry for 10 minutes and than it worked... In case it doesn't help remove the charging socket you soldered and test if device works.

07-04-2014, 04:30	#6 (permalink)
jakkarzoya_2511 No Life Poster Join Date: Oct 2007 Location: IN MOBILES Posts: 1,199 Member: 613242 Status: Offline Sonork: 100.1626311 Thanks Meter: 645	check vbat line its sort ... mybe some capacitor is damage on vbat line so check one by one no more hint ...