Built in flash clicks but wont engage on canon xti
Usually caused by sticky liquid spillage around the pivots of the flash or impact. If liquid, manually pull up on the flash when it clicks to free the flash, and then remove the three screws holding the flash cover. On the right side is a spring with a screw inside it. Carefully remove the screw and check for rust. You can scrape off the rust with an Xacto knife and then clean the hole with a Qtip with Windex, then put some grease or Vaseline on the screw and see if the flash moves smoothly. Also clean off the flash and base with the Qtip and Windex to get rid of any sticky liquid.
Be very very careful! There is 300 volts across the flash tube!!! Do not touch the flash tube where the wires are soldered to it!!!!!
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