I just found the PERFECT STUFF! My mom went to hospital and in the reception all over them small sachets with disinfection napkins for cleaning hands are brilliant! They contain 82% ethanol, water and 2% glycerol. Took away my excess loca just like petrol takes the stickerglue off glasjar. And the sweet thing is… it just evaporates too :-)

Hi! I have s4 with VERY POOR WIFI. I then got a smashed s4 in ebay. I tried to detach the bottom wifi connector. Signal went just a little worse. About the same. The antenna is in the bottom back part with speaker assembly. I perhaps think it was faulty. Maybe moist, dirt, water or??? Anyway i clicked both backcovers off and switched them. NOW WIFI IS FINE!! PERFECT LIKE ALL MY ITHER PHONES!!. SO IT HAS TO DO WITH THE ANTENNA I SIDE THE BACKCOVER BOTTOM. Regards lis Ps be careful when clicking off backcover. I use a nail and press to the clicks snao up. Gentle!!

Hi again!! I got a smashed s4 in ebay. I tried to detach the bottom wifi connector. Signal went just a little worse. About the same. I saw in the link above that the antenna is in the bottom back part. I perhaps think it was faulty. Maybe moist, dirt, water or??? Anyway i clicked both backcovers off and switched them. NOW WIFI IS FINE!! PERFECT LIKE ALL MY ITHER PHONES!!. SO IT HAS TO DO WITH THE ANTENNA I SIDE THE BACKCOVER BOTTOM. Regards lis

Hi there.. did you find a solution?? I got several s4 and s3 to test my router and router is NOT the cause! There's something wrong in the hardware. All other phones report fine wifi (rssi) from 10 meters from router. My faulty s4 can only connect from 2.5 meters from router. Any further away it pops out. As I say I have multiple phone to test with. I got the phone tester app. Select wifi and stuff. Here it tells you the rssi dam value. This is an error I the hardware as I have had this problem with THIS phone from day one. Please respond if you got some news on this. Thanks Liz, Denmark (lisbethsighfehrmann@gmail.com)

Wd-40 then get hard glue off. Clean with 99% iso and finish with glasswipes. Ive done 10 s3 and some s4 like this.

Denmark has them at: http://www.mytrendyphone.dk/shop/ipad-4-funktion-114047p.html

Button plastic can be changed only when separating glass. If cable is broken it is a new screen assembly http://m.tmart.com/LCD-Touch-Screen-Bezel-Frame-Assembly-for-Samsung-S4-I9500-Blue_p195757.html This is the reason i use SOFTHOME app. Virtual homebutton that float. Because if homebutton breaks its crap to use phone.

Hi. Dont bother changing! I use virtual homebutton and its SO good. Download app SOFTHOME start and enable. Now you have a floating green house which Is homebutton. I never use hard home as I love that ALL buttons are on screen. Good luck LisbethSighFehrmann

But also alot harder to change. :-) everybody can replace the full assembly as it is only one connector. Good luck replacing - it's great to fix stuff yourself :-)

The home button press a small swith that is attached to a cable on the inside of the screen. It's dead easy to take it apart, check video on youtube a guy called les5on makes grest walkthoughs. Have done it myself on S3 and galaxy Y. Do rember to ground yourwelf each time youve been moving around. Or get an antisratic wrist strap.