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The Xteink X4 field guide

Master your pocket e-reader

PocketInk is the independent how-to hub for the Xteink X4. Owner-tested setup, book transfer, custom firmware, cases, and the fixes that actually work — no fluff, no affiliate-bait.

4.3"
E Ink screen
77g
pocketable
ESP32-C3
hackable
PocketInk 87%
Ch. 3 The Short Version

What we cover

Four pillars, from unboxing to flashing firmware. Every guide is written to answer one real question.

Setup

First charge, firmware check, microSD, and your first books.

Book transfer

Calibre, microSD, and which formats actually look good.

Custom firmware

CrossPoint, Papyrix, flashing, recovery, and why it matters.

Cases & mods

Pouches, magnets, screen protectors, clip-on lights, 3D prints.

Latest guides

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Guide

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