Fixes for Mihon and Tachiyomi problems: backup restore errors, Cloudflare blocks, 403s, failed downloads and upgrade issues.
Short answer: HTTP 403 means the source’s server understood the request and refused it — usually an anti-bot check, rate limiting, or a regional block, not a Mihon bug. Open the source in WebView and complete any check there, slow down bulk updates, and confirm whether the site itself is up. A 403 that shows…
Short answer: WebView login problems in Mihon come from three places — an outdated Android System WebView, stale cookies stored by the app’s WebView, or the site challenging the login itself (Cloudflare). Update WebView from the Play Store, clear the WebView data from Mihon’s advanced settings, and retry; for Kitsu-style “Failed to bypass Cloudflare” login…
Short answer: “app not installed” usually means a signature conflict (another build with the same package name is already installed) or an incomplete download; “there was a problem parsing the package” usually means the file is corrupted, made for a different CPU architecture, or your Android is older than the app requires (Mihon needs Android…
Short answer: this is a known upgrade bug, not your fault. Mihon’s own changelogs for 0.21.1 and 0.21.2 describe fixes for updates from 0.20.x failing on some databases and leaving the app on the updating screen or crashing at launch. Update to v0.21.2 (or reinstall it over your current install), give the first launch time,…
Short answer: check three things in this order — (1) Mihon’s battery mode is set to Unrestricted, (2) the app still has access to its storage folder and the device has free space, (3) the source itself loads (a source returning 403 fails downloads exactly like it fails browsing). Most download failures are one of…
Short answer: a failed library update is almost never one problem. Open the update log, see which sources error, and fix by category: rate-limit messages mean update less at once; every title from one source failing means that source is down or has moved; the whole update dying midway usually means Android killed the app…
Short answer: nothing is broken. Mihon installs empty — it has no built-in manga sources and no official extension list. You add a community extension repository under Settings → Browse → Extension repositories, and the extensions then appear under Browse → Extensions. Our repository guide has the full steps and the current community repository URL….
Short answer: this error means a website’s Cloudflare check stopped the app before it could load anything. Update Mihon first — 0.21.2 specifically fixed logins failing with this message (for example Kitsu) — then open the source in Mihon’s WebView and complete the check manually once, so the app keeps the clearance cookie. Why it…
Short answer: “Decryption failed” during a backup restore means Mihon could not read your .tachibk file as a valid backup. The three usual causes are an outdated Mihon version trying to read a newer backup, a damaged or incompletely copied backup file, and a backup created by a different app family (a fork) than the…
