He had been blocked. Or she had deleted her account. Or the cruel, slow 3G signal had simply given up.

She had been the brightest girl in the village school. She wore a single jasmine flower in her hair and could solve quadratic equations faster than Sai could pour tea. Two years ago, she had left for Yangon, the big city, to study nursing. The day she left, she had made Sai install Facebook Lite on his phone.

To understand the login context, it is necessary to distinguish the platform differences:

"One thousand kyat," the man grunted.