New answers tagged storage
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First to clarify, Resize Partition is different than Resize File System, TWRP provides later option. It resizes the ext2/3/4 filesystem to the size of partition it's created on. Filesystem size can be checked with df command when mounted, and partition size with blockdev.
Just like HDDs or SSDs on PC, Android's eMMC storage is divided into partitions (can ...
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This might not be a direct solution to your problem, but I'm sharing my thoughts on it.
SHORT ANSWER
It's not very likely for RAM on embedded systems to get defective. And if it does, solutions might not be readily available, except if someone has already done that specifically for your device.
Modern flash storage devices manage bad blocks on their own, ...
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As far as I understood the apps take so much space because of cache files, additional data, backups, photos, videos and etc. Size that shown in App Cleaner is just about the size of .apk files without any other related data and files to those apps. It is all cleanable but could cause the loss of the information and unpredicted behavior of an app.
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With root take a comparison of space usage on both devices by executing du -h /data | sort -h. Without root you can rely on figures reported by filesystem by running df -h.
From the updated screenshot you have attached, no partition is duplicate mounted. If you are talking about tmpfs, it's a volatile filesystem which lives in RAM and is vanished on reboot. ...
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... /system has no space left.
It indicates that your /system partition is mounted R/W but just to make sure, if dm-verity is enabled, /system is always R/O. For details see How to disable dm-verity on Android?.
Next, both of your screenshots show that your /system partition is full. Even if you haven't written anything to it, some ROMs may have /system ...
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It's not clear what Android means by "Apps", which is 2.10 GB. Total size of an app includes its apk file + extra native libraries (if any) + Dalvik cache + obb files + app's data + cache. Data and cache can be on internal (/data) as well as shared private storage (/sdcard/Android). I think the missing 2.4 GB could be apps data if not included in "Apps", or ...
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You're probably confusing TWRP backups with existing partitions here. TWRP backs up in two different ways:
image: a disk image (i.e. a block-wise copy)
tar: disk contents (i.e. a file-wise copy)
So you have two backups of the same partition here. Also see my answer on Trying to understand the options in TWRP backup for more details.
Moreover, if you want ...
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Android's filesystem hierarchy is a bit complex and people often find it difficult to grasp. A major reason for confusion is that Android isn't very expressive in explaining these things and it's not very clear which files Android put in which category. Another reason is that mostly devices are not rooted and users don't have access to filesystems to verify ...
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The fact that you don't use games has no bearing on the amount of storage space other apps use. You mentioned that you use social media apps. Then you should know that many (if not most) of them keep caches of files (mainly pictures, videos) you viewed to present them quickly in case you visit the same pages again. With time, the storage space they occupy ...
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The right screenshot seems to originate form an app named "Cleaner". Apps on Android can not access app-private data (files in the path /app/data/<apppackagename>/) of other apps, therefore an app can never estimate the data size correctly.
I assume "App uninstall" shown in Cleaner is the pure size of all app APK files (those are visible to all apps). ...
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