BlackBerry Schematics and Hardware Solution, mobile Phone, shcematic handphone

Schematics BlackBerry Bold 9900 Dakota and Hardware Problem Solution


blackberry-bold-9900-dakota

Schematich:

Hardware Problem:

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Blackberry Bold 9900 Dakota keypad ways


I want to share the experience in repairing blackberry bold 9900 dakota keyboard, this keyboard does not respond to any button on the press,so I decided to replace with a new keyboard, but the problem is not resolved, the keyboard still does not respond to key press.

so I decided to pull out and the keypad IC jumper directly without using the filter IC, how it works and I will display it in the form of the video below. This may be useful for you

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