GT-C3300K does the 7pin micro USB connector needs the original charger ? - GSM-Forum

saramara69 · 09-09-2013, 22:51

Hello
I replaced a broken micro usb port at a GT-C3300K and now the phone shows charger disconnected although it is connected .In adition when i turn the phone on when i connect the charger it shows that it charges but when i disconnect it it shows it keeps charging. Does anybody here knows if the original charger has only +5V and GND or it has any feedback from the +Vbat from the phone ?

binaybiswas · 09-10-2013, 06:51

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Charger must be 700-800 mA & 5volt for samsung mobile. & check old original charger pinout, can be other Pin bios resistore to output.

nafe2me · 09-10-2013, 06:54

Rehot charging IC & components.. problem will solve....

saramara69 · 09-10-2013, 22:03

Quote:

Originally Posted by binaybiswas

::::::::::

Charger must be 700-800 mA & 5volt for samsung mobile. & check old original charger pinout, can be other Pin bios resistore to output.

I tried at another same phone with the micro usb off to give voltage from the power supply. 1,2 from left as you look pcb and the phone upright GND and 7 +5.2V. The phone starts charging but when you turn it on it thinks it is connected to pc. So someone of the other pins play some role. If fomebody has an old original charger and may give me the solution i will be grateful

saramara69 · 09-13-2013, 21:38

after some searching on the web i found out the pins.
as you look the connector from outside from left to right
pin1 +V pin2 Vbat pin3 data +/- pin4 data +/- pin5 indication/command pin6 GND pin7 GND. When i connected +V 5.2 Volt and GND with pin5 grounded when you turn the phone on it says connected to pc if you leave pin5 unconnected it says charger disconnected and with 180k or 220k resistance between pin5 and gnd it charges and works normally. Hope to help others.

09-09-2013, 22:51	#1 (permalink)
saramara69 Junior Member Join Date: Aug 2013 Posts: 9 Member: 2003311 Status: Offline Thanks Meter: 0	GT-C3300K does the 7pin micro USB connector needs the original charger ? Hello I replaced a broken micro usb port at a GT-C3300K and now the phone shows charger disconnected although it is connected .In adition when i turn the phone on when i connect the charger it shows that it charges but when i disconnect it it shows it keeps charging. Does anybody here knows if the original charger has only +5V and GND or it has any feedback from the +Vbat from the phone ?

09-10-2013, 06:51	#2 (permalink)
binaybiswas No Life Poster Join Date: Aug 2009 Location: India, W.B, Kolkata Posts: 856 Member: 1093574 Status: Offline Sonork: 100.1646163 Thanks Meter: 474	:::::::::: Charger must be 700-800 mA & 5volt for samsung mobile. & check old original charger pinout, can be other Pin bios resistore to output.

09-10-2013, 06:54	#3 (permalink)
nafe2me No Life Poster Join Date: Feb 2009 Location: Ghaziabad, India Posts: 1,402 Member: 977479 Status: Offline Sonork: 100.1638508 Thanks Meter: 795	Rehot charging IC & components.. problem will solve....

09-13-2013, 21:38	#5 (permalink)
saramara69 Junior Member Join Date: Aug 2013 Posts: 9 Member: 2003311 Status: Offline Thanks Meter: 0	after some searching on the web i found out the pins. as you look the connector from outside from left to right pin1 +V pin2 Vbat pin3 data +/- pin4 data +/- pin5 indication/command pin6 GND pin7 GND. When i connected +V 5.2 Volt and GND with pin5 grounded when you turn the phone on it says connected to pc if you leave pin5 unconnected it says charger disconnected and with 180k or 220k resistance between pin5 and gnd it charges and works normally. Hope to help others.