12:59 AM
ramesh ahir
Here is the Nokia 2720 fold solution for not working keypads problem. This solution provides the connection line paths of the keyboard interface.
This only works for hardware failure, so you can first try to ensure that the firmware of the device is in order and already calibrated. Clean the entire keyboard interface with the keyboard membrane oxidation as a building found. Also check the silicone rubber keypads are still in good condition.
You may refer to the solution offered below if the above procedures are not the basic problem. and follow some step by step procedures which we prepared.
In this solution the power / end key is not included but we have also prepared a jumper solution to it, this only works for numeric and navigation keys such as the following:. 1, 2, 3, 4, 5, 6, 7, 8, 9, *, 0, #, UP, DOWN, LEFT, RIGHT, Soft Left, Right Soft, Select / Action and send.
Repair tips for Nokia 2720 fold mobile phone keypad problem:
If only one or two keys do not respond, you may only suspect that the problem lies in an open line paths. Just trace the connection of the said keys, and then managed to establish a jumper on.
If more than three or four buttons do not work, you may suspect that the problem is an open communication line or a path of both the keyboard filter IC. Checking and tracing the connection of these keys and then replace the keyboard filter IC when the connection paths is okay.
for more detail and new tips and tricks about this problem keep visiting this page we will update it timely with new diagrams.some related post are also given bellow you can read them also for more information.
to get new repairing diagrams and applications with email “Enter your email address for RSS:” at the right side at top and press “subscribe”
Disclaimer.these images are uploaded by website visitors.and for teaching and study purpose so we will not be responsible for any damage in your mobile it is your responsibility to use the method as mentioned in the posts.and if any diagrams is your own and you do not want to be on this site please contact us at Contact Us and the diagram will be removed from site as soon as possible.
This only works for hardware failure, so you can first try to ensure that the firmware of the device is in order and already calibrated. Clean the entire keyboard interface with the keyboard membrane oxidation as a building found. Also check the silicone rubber keypads are still in good condition.
You may refer to the solution offered below if the above procedures are not the basic problem. and follow some step by step procedures which we prepared.
In this solution the power / end key is not included but we have also prepared a jumper solution to it, this only works for numeric and navigation keys such as the following:. 1, 2, 3, 4, 5, 6, 7, 8, 9, *, 0, #, UP, DOWN, LEFT, RIGHT, Soft Left, Right Soft, Select / Action and send.
Repair tips for Nokia 2720 fold mobile phone keypad problem:
If only one or two keys do not respond, you may only suspect that the problem lies in an open line paths. Just trace the connection of the said keys, and then managed to establish a jumper on.
If more than three or four buttons do not work, you may suspect that the problem is an open communication line or a path of both the keyboard filter IC. Checking and tracing the connection of these keys and then replace the keyboard filter IC when the connection paths is okay.
for more detail and new tips and tricks about this problem keep visiting this page we will update it timely with new diagrams.some related post are also given bellow you can read them also for more information.
to get new repairing diagrams and applications with email “Enter your email address for RSS:” at the right side at top and press “subscribe”
Disclaimer.these images are uploaded by website visitors.and for teaching and study purpose so we will not be responsible for any damage in your mobile it is your responsibility to use the method as mentioned in the posts.and if any diagrams is your own and you do not want to be on this site please contact us at Contact Us and the diagram will be removed from site as soon as possible.
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