Yesterday, irrigation repair man turned off water to home. Afterwards, upstairs toilet would not fill with water. Detached metal flex tube to tank and turned on water @the wall. Still, no water came out. Sinks and shower working fine in that bathroom.

There may be dirt in the angle stop (valve) itself. You can close and open it several times to dislodge the dirt inside. If it doesn't help then turn water OFF at the main valve, unscrew angle stop and inspect incoming nipple and angle stop for blockage.

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Originally Posted by ;

turn water OFF at the main valve, unscrew angle stop and inspect incoming nipple and angle stop for blockage.

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Follow the excellent advice by Milo. Let me add a bit to it.
First, after shutting off the water at the house shut off, unscrew the bonnet nut, (see image) and back the stem and washer assembly out counterclockwise. Place a pan over the open valve and turn the water on for a moment. Do you have a flow? Let me know, Tom