[http://www.ebay.co.uk/itm/Keypad-Keyboard-Audio-Jack-Flex-Cable-Replacement-For-Samsung-Nexus-S-i9023-/260913946937?pt=UK_Replacement_Parts_Tools&hash=item3cbfaee139#ht_3485wt_1165|this] is the part [http://this|http://www.formymobile.co.uk/i9020disassembly.php] shows how to fit it. If the other buttons and touch screen are working this may solve the problem and is cheap and easy to do.
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[http://www.ebay.co.uk/itm/Keypad-Keyboard-Audio-Jack-Flex-Cable-Replacement-For-Samsung-Nexus-S-i9023-/260913946937?pt=UK_Replacement_Parts_Tools&hash=item3cbfaee139#ht_3485wt_1165|this] is the part [http://www.formymobile.co.uk/i9020disassembly.php|this] shows how to fit it. If the other buttons and touch screen are working this may solve the problem and is cheap and easy to do.
[http://www.ebay.co.uk/itm/Keypad-Keyboard-Audio-Jack-Flex-Cable-Replacement-For-Samsung-Nexus-S-i9023-/260913946937?pt=UK_Replacement_Parts_Tools&hash=item3cbfaee139#ht_3485wt_1165|this] is the part [http://this|http://www.formymobile.co.uk/i9020disassembly.php] shows how to fit it. If the other buttons and touch screen are working this may solve the problem and is cheap and easy to do.