# x4ssh > An SSH terminal for the Xteink X4 e-ink reader, typed on with a Bluetooth keyboard. - Download: https://x4ssh.cobanov.dev/dl/firmware.bin - Install: copy firmware.bin to the SD card, put the card in the X4, then Settings → System → SD Card Firmware Update in CrossPoint - Needs: CrossPoint on the reader and a Bluetooth Low Energy keyboard - Screen: 76 columns by 22 rows on the 800x480 panel - Local prompt commands: wifi, pair, key, ssh, forget, stat, tz, crosspoint, sleep, clear - Go back: type crosspoint at the prompt - Source and releases: https://github.com/cobanov/x4ssh - Built on: X4Term (https://github.com/penk/X4Term), LibSSH-ESP32 (https://github.com/ewpa/LibSSH-ESP32), freeink-sdk (https://github.com/Free-Ink/freeink-sdk)