if these buttons or a few of them are not working then you can see above diagram and check all these parts and if any of them is missing then replace it.check whole path and if any track is missing apply jumper as given in above diagram.
check strip it may can be damage also and in that case replace strip or make jumpers.
for more detail and new tips and tricks about cellphone service problem keep visiting this page we will update cellphone service diagrams timely with new cellphone diagrams.some related post are also given bellow you can read them also for more information about cellphone.
to get new repairing cellphone diagrams and applications with email “Enter your email address for RSS:” at the right side at top and press “subscribe”
Sign up here with your email
Disclaimer.We are not affiliate with cell phone companies like Nokia,Samsung,Sony Ericsson,Lg,Motorolo and some other etc Manufacturers / Vendors .All trademarks are the property of the respective trademark owners.we just provide diagrams for study and repairing purpose.these images are uploaded by website visitors.so we will not be responsible for any loss or damage, including personal injury.for more detail read Terms and Conditions and Privacy and Policies at bottom.