Guide
Bleach Mirrors High Not Working: Fixes for the Most Common Faults
When Bleach Mirrors High will not open, will not load, or will not connect, work the fault in order: restart, connection, storage, then reinstall in place as a last step.

CONTENTS On this page
Find the Fault First
Before changing anything, decide what is actually broken. If the game will not open at all, the install or the phone state is the fault. If it opens but will not load, the connection or the game service is the fault. If one battle fails while others work, that battle or its data is the fault. Naming the fault first stops the five random fixes that waste an evening. Start from the Bleach Mirrors High game homepage for the full game overview.
Note the first step that differs from normal: the splash screen, the loading bar, the squad screen, or the battle itself. The first difference is where the fault lives, and the fix should start there.
The Quick Fixes
Close the game fully and reopen it, then restart the phone if the first try fails. A restart clears more stuck states than any settings change. Next, switch networks: Wi-Fi to mobile data or back, to rule out a router fault. Then check storage, because a phone with no free space fails in strange ways.
Clear the game cache from Settings if loading stalls, which removes stale data without touching progress. Do not clear all data or uninstall yet: those are last steps, not first ones, because they risk the very progress you are trying to protect.
Connection and Service Faults
If the game loads but will not connect, the game service may be in maintenance or the connection may be unstable. Try stable Wi-Fi, wait out a short maintenance window, and test again before changing anything on the phone. A service fault cannot be fixed from the phone, and phone changes during a service fault only add confusion.
If only one account or device fails while another works, the fault is local to that device: storage, cache, or a stuck session. Restart, clear cache, and sign in again through the route the game itself offers. Related reading on this site covers Bleach Mirrors High Lag and Crash Fixes for Android.
Last Steps, in Order
If nothing else works, update the game in place to the current build, then, only as a final step, reinstall with progress protection in mind: confirm the account route first, so progress can return after the reinstall. Never reinstall blind, because blind reinstalls are how progress gets lost for good. For a neighbouring topic, see Best Starter Team in Bleach Mirrors High: A Squad That Carries Early Battles.
If the fault survives all of that, report it through the publisher support route named in the game description, with the phone model, the fault step, and what you already tried. A clear report gets a useful answer. A vague report gets a vague one.
Quick Answers
Should I uninstall when the game will not open?
No, not first. Restart, check connection and storage, and clear cache first. Uninstall is a last step, and only with the account route confirmed.
Is the game down, or is my phone broken?
Test another network and, if possible, another device. If both fail the same way, the service is the likely fault. If only one device fails, the device is.