LMC 8.4 installs without issue on Oppo phones, then refuses to open, freezes mid-shot, or vanishes from the background entirely. ColorOS manages background apps and battery even more tightly than stock Android, and that’s usually the real reason behind LMC 8.4 not working on Oppo.
Why Is LMC 8.4 Not Working on Oppo Phones?
“LMC 8.4 is not working on Oppo phones mainly because of five causes: ColorOS blocking background permissions, aggressive battery optimization killing the app, missing Camera2 API support, a corrupted install, or a config file built for the wrong phone model.”
Oppo’s ColorOS, built on the same BBK Electronics foundation as Vivo’s FunTouch OS and OnePlus’s OxygenOS, applies some of the most aggressive background app management among Android skins, consistently ranked among the strictest by the “Don’t Kill My App” community database.
This matters because these restrictions target background processes broadly, not camera apps specifically, but LMC 8.4’s computational photography needs sustained background processing during multi-frame capture, making it more sensitive to being killed mid-shot.
The sections below walk through each cause, starting with ColorOS’s permission system, which explains the majority of reported Oppo issues.
Does ColorOS Block LMC 8.4 from Running Properly?
Yes, ColorOS can block LMC 8.4 from running properly by default, since it restricts background activity and auto-launch permissions for apps not pre-installed by Oppo.
This isn’t unique to LMC 8.4 — ColorOS applies the same restrictions to most sideloaded apps as part of Oppo’s approach to managing battery life and background resource use system-wide.
The “Don’t Kill My App” project consistently ranks Oppo among the stricter manufacturers, alongside its sibling brands Vivo and OnePlus, all built on shared BBK Electronics foundations.
How Do You Fix LMC 8.4 Not Opening on Oppo?
Go to Settings > App Management > LMC 8.4 > Permissions, and manually enable Camera, Storage, and Auto-launch permissions, since ColorOS often disables auto-launch by default for sideloaded apps.
If the app still won’t open, clear its cache and app data under Settings > App Management > LMC 8.4 > Storage Usage, then reopen it and grant permissions again from a clean state.
Restarting the phone after granting permissions occasionally resolves cases where the permission change didn’t fully apply without a fresh app launch.
How Do You Fix LMC 8.4 Crashing During Shooting on Oppo?
Disable ColorOS’s battery-saving mode while using LMC 8.4, since aggressive power management can throttle the processor mid-shot, causing a crash during Night Sight or HDR+ processing.
Go to Settings > Battery, and confirm High Performance mode is active rather than Super Power Saving Mode, which restricts background processing precisely when LMC 8.4 needs it most.
If crashes persist specifically during Night Sight, reducing the frame count in Advanced Settings lowers memory pressure, the same fix that resolves similar freezing issues on other heavily skinned Android phones.
How Do You Enable Camera2 API Support on Oppo?
Check your Oppo phone’s Camera2 API hardware level using a free probe app, since some Oppo models, particularly budget A-series phones, only implement Level 2 support rather than the Level 3 LMC 8.4 expects.
Camera2 API support is a hardware and firmware combination Oppo controls, not something users can manually enable if it’s absent — this differs from the ColorOS permission issues, which are user-fixable.
Oppo’s Find X and Reno series flagship phones more consistently offer full Level 3 support than the budget A-series, following the same hardware-tiering pattern seen across most Android brands.
How Do You Stop ColorOS’s Battery Optimization from Killing LMC 8.4?
Go to Settings > Battery > App Battery Management, find LMC 8.4, and set it to Allow Background Activity rather than the default restricted setting.
This specific menu, part of ColorOS’s layered battery management system, controls which apps Oppo permits to run background processes, separate from Android’s general battery optimization settings.
Without this specific permission granted, ColorOS can silently terminate LMC 8.4’s background processing mid-shot, which shows up as an unexpected crash rather than a clear error message.
Does Oppo’s App Market Block Sideloaded Apps Like LMC 8.4?
No, Oppo’s own App Market doesn’t block sideloaded APKs directly, but ColorOS does show extra security warnings when installing apps from outside the store.
These warnings are part of Android’s standard Install Unknown Apps permission system rather than an Oppo-specific block, so approving them the same way as on any other Android phone completes the install normally.
Once installed, the app runs independently of Oppo’s App Market, though the background permission restrictions covered above still apply regardless of installation source.
What Should You Do If LMC 8.4 Still Won’t Work on Oppo?
If LMC 8.4 still won’t work after granting all permissions and disabling battery restrictions, confirm your specific Oppo model’s Camera2 API level, since hardware limitations can’t be fixed through settings.
On confirmed Level 2 hardware, switching to Open Camera, which has lighter hardware requirements, often provides a more reliable experience than continuing to troubleshoot LMC 8.4 on unsupported hardware.
If your phone does support Level 3 but problems persist, reinstalling LMC 8.4 fresh after fully uninstalling the previous version resolves most remaining software-level issues.
Conclusion
LMC 8.4 not working on Oppo phones almost always traces back to ColorOS’s aggressive background permission and battery management system rather than the app itself. Manually enabling Auto-launch, App Battery Management, and confirming Camera2 API support resolves the majority of cases we’ve seen reported. For more setup guides and downloads, visit the LMC Camera homepage.
Why does LMC 8.4 close itself in the background on Oppo phones?
This happens because ColorOS’s App Battery Management setting restricts most sideloaded apps by default, killing background processes to save battery. Setting LMC 8.4 to Allow Background Activity under Settings > Battery > App Battery Management resolves this in most cases. Without this permission, the system can terminate the app mid-shot without any clear error message.
Is LMC 8.4 compatible with all Oppo phone models?
No, compatibility depends on each specific model’s Camera2 API hardware level, which varies between Oppo’s budget A-series and its higher-tier Find X and Reno series phones. Flagship models more consistently offer full Level 3 support than entry-level devices. Checking your exact model with a Camera2 API probe app before troubleshooting further saves time.
Are ColorOS and FunTouch OS restrictions the same?
They’re very similar, since both ColorOS on Oppo and FunTouch OS on Vivo share underlying battery and background management philosophy from their common parent company, BBK Electronics. The same general fixes — enabling auto-launch and background activity permissions — apply to both skins with slightly different menu wording. OnePlus’s OxygenOS, also under BBK, follows a comparable pattern.
Will disabling battery optimization hurt my Oppo phone’s battery life?
The impact is minor and limited to LMC 8.4 specifically, since you’re only exempting one app from background restrictions rather than disabling battery optimization system-wide. Most users don’t notice a meaningful difference in overall battery life from exempting a single camera app. The tradeoff is worth it for reliable camera app performance.
Can I fix LMC 8.4 crashes on Oppo without rooting the phone?
Yes, all the fixes covered here — permissions, battery settings, cache clearing, and reinstalling — work on a standard, non-rooted Oppo phone. Rooting isn’t necessary or recommended just to fix LMC 8.4 compatibility issues. The ColorOS settings that cause most problems are accessible through the standard Settings app.
Why does LMC 8.4 work fine at first but stop working after a few days on Oppo?
This delayed failure pattern usually means ColorOS’s battery optimization re-applied restrictions after a system update or automatic cleanup process reset your permission settings. Re-checking Auto-launch and App Battery Management periodically catches this before it becomes a persistent problem. Some users report this happening after every major ColorOS update specifically.