u700 pwr key ways - GSM-Forum

habibkhalil · 11-29-2012, 08:23

u700 shows charge process but not pwr on

change main flex cable & clean pwr key same prob

need pwr key ways schematics not available

thanks

constantinexx · 03-25-2014, 17:28

did you solve it ?? help me

gcceleghg · 03-25-2014, 18:07

Some issues that could be related to a flex cable damaged:

screen: black or reverted image, disturbance
audio: non working speaker or ringtone
power button: unable to switch on the phone
camera: unusable or acting weird
touchscreen buttons: unusable or acting weird

Replacing the flex flat cable on your Samsung U700 is possible and actually pretty easy. I replaced the cable by myself and the phone is now working again without any problem at all!
I only tested the following procedure on my Samsung U700, but it will probably work as well on successors phones, such as the the U700 Evo. Please post a comment if you have been successful on other phones.

You will need:
a precision soldering iron
a precision screwdriver set: you'll mostly need a very thin crosshead screwdriver but I also advice you to have a thin flathead screwdriver. It's pretty useful to separate composing parts joined like "puzzle pieces".
two Safety pins: one little, the other normal sized. You'll find them useful during the disassembling procedure.

Obviously you will also need a new Flexible flat cable for your Samsung U700. You shouldn't have problems buying one on the internet. I bought mine from ebay, new and sealed, for 10 Euro including shipment. If you are going to buy on ebay just search for u700 flat cable, u700 flex cable or similar.

disassemble sgh u700 - YouTube

11-29-2012, 08:23	#1 (permalink)
habibkhalil No Life Poster Join Date: Aug 2005 Age: 71 Posts: 1,219 Member: 174094 Status: Offline Thanks Meter: 74	u700 pwr key ways u700 shows charge process but not pwr on change main flex cable & clean pwr key same prob need pwr key ways schematics not available thanks

03-25-2014, 17:28	#2 (permalink)
constantinexx Insane Poster Join Date: Jun 2013 Posts: 89 Member: 1957367 Status: Offline Thanks Meter: 4	did you solve it ?? help me

03-25-2014, 18:07	#3 (permalink)
gcceleghg No Life Poster Join Date: Jun 2012 Location: Arg Posts: 4,913 Member: 1766567 Status: Offline Thanks Meter: 1,788	Some issues that could be related to a flex cable damaged: screen: black or reverted image, disturbance audio: non working speaker or ringtone power button: unable to switch on the phone camera: unusable or acting weird touchscreen buttons: unusable or acting weird Replacing the flex flat cable on your Samsung U700 is possible and actually pretty easy. I replaced the cable by myself and the phone is now working again without any problem at all! I only tested the following procedure on my Samsung U700, but it will probably work as well on successors phones, such as the the U700 Evo. Please post a comment if you have been successful on other phones. You will need: a precision soldering iron a precision screwdriver set: you'll mostly need a very thin crosshead screwdriver but I also advice you to have a thin flathead screwdriver. It's pretty useful to separate composing parts joined like "puzzle pieces". two Safety pins: one little, the other normal sized. You'll find them useful during the disassembling procedure. Obviously you will also need a new Flexible flat cable for your Samsung U700. You shouldn't have problems buying one on the internet. I bought mine from ebay, new and sealed, for 10 Euro including shipment. If you are going to buy on ebay just search for u700 flat cable, u700 flex cable or similar. disassemble sgh u700 - YouTube