[Q] Clearify, Please? - Android Q&A, Help & Troubleshooting

Hello everyreader, I am an experienced-noob to android.
I got few questions after looking around in the forum and reading guides over the week and failing over and over again...
1.What is the use of "ROM" in android, by 'changing',or having a custom ROM what could be the benefits (please could you be specific on available things - i know i can have 'improvements' in performance but that's very general thing to say).
2.What are the benefits of Rooting, what is the difference between launching a "super user" application from the google play?
3.There are many guides mentioning TWRP, what does it stand for? where can i learn more about these??
4.Android and an OS is working weird from my perspective:
Flash Chip: Internal Storage + sdcard
external sdcard: extsd
On tablets specification I only see the total space of flash chip,
not internal storage, up-to now i understood the somehow- magically there are some things that could re-arrange the partition and allocate more space to internal storage, why is it so hard to do?!
5.theoretically if i were to use Link2sd could i download an app which is larger than my total internal storage
6.My tablet is not recognized by the computer what do i do? (not any adb, i have no drivers\ see any guides for this).

Related

[Q] low on internal storage -- 10.1V

Hi to all from Greece...
I am facing a strange problem with my 2 months old 10.1v. Since yesterday there is a notification that the internal storage is getting low. In fact in the storage use of the apps is almost 8 Gb that cannot be true as the applications that are installed cannot be more than 500 Mb (including the cache).
I've read a relevant post in the forum that indicates a format of the sd card. I have made a backup of the apps and the data on my pc and I am wondering the best way to proceed.
Will this format affect the system on the Tab? The system apps?
Any help will be highly appreciated.
Thank you very much,
DK
P.S... by the way...how can i format the sd card? I have looked everywhere and couldn't figure out how....
Tks again
Internal space...
You internal storage is your APP (partition 10) space. When you are talking about your 8GB's free you're talking about your "SDCard" space (Partition 14). I suggest installing "File Manager HD", and browse your /data/app folder. Sort by size to see what your biggest applications are and uninstall a couple.
Reformatting your SDCard space isn't going to help here but if you do want to reload the entire thing including your SDcard (all 2-17 partitions) check out The Overcome ROM reload instructions. His install walkthrough has your completely erase everything (every partition gets reloaded) and starts everything off empty for you. (Find his ROM and website info on the "Galaxy Tab 10.1 Android Development" Forum).
Hope this helps...
Taran..

[Q] [CM 10.1] Link2SD and internal SD

Hi there, noob speaking... (at least in terms of Android)
Let's start with the fact that I bought rooted phone with Cyanogenmod alredy installed which is my 1st Android device. That way I omitted few steps of learning how to root, how to flash it, etc. not to mention that I'm not a Linux guy, so even the way system handles folders and files is new for me. As the problem is more phone-related than system-related I'm posting it here, on XDA.
I'm trying to learn how to partition an "internal SD card" to make it work with Link2SD. I've found lots of tutorials how to do this with an external memory card, but there is not much info about doing the same with internal storage. I've found a tutorial for a diffrent phone, but I'm worried that droid devices seem to be very diffrent and simply retyping everything without understanding what I'm actually doing may cause more harm than good.
My biggest objection is the fact that I'm alredy using my internal SD and beside various media files (photos, music, etc.) there are lots of system, or app related stuff there. There are folders like .android_secure which as I guess store app-related files (or even parts of apps that I moved to SD with build-in feature). If this was Windows, I'd simply back up everything, format it, partition into "general storage" and "app memory" and put backed up files back directly onto new partition only worrying to keep correct letters assigned to new partitions. I'm preety sure that doing same in Android (by copying everything to PC and back to phone) would not work because all those permisions, or am I wrong?
Anyway - Any advice how to do this?
Additional question is related to accessing whole phone memory via PC connected by USB. I know that Android phones are made with security in mind and "system" partition is hidden when connecting USB, but there should be some other way than browsing everything from some phone apps with root permissions. I'd really like to browse my phone both for educational reasons and to check what really takes up space on my "system storage". I'm suspecting that some app went crazy eating lots of space, because once every time I uninstalled something my storage after few minutes was again at 20mb level and it continiued for some time.
BTW: Is there any reason why having about 200mb empty space for apps is not enough to install or update some small applications, while other install even when just 100mb is left?
Tl;dr:
-How to partition internal SD to make it work with link2sd while there are some system/app files on internal SD alredy?
-How to browse "system memory" from PC via USB?
-Why some apps don't install when there is still 200mb+ free space?

[Q] Move App to SD - Completed all steps with no results

I'm not by any meaning a technology, software, programming expert, please forgive my beginner language.
I have the LG P769 20h
I have rooted my phone
I have partitioned my SD card
I have installed Link2SD and App2SD
I receive an error message when I try to move apps to my SD card using Link2SD "App2SD is not supported by your device. Because your device has primary external storage which is emulated from the internal storage. You can link the app in order to move its files to your SD card"
I have successfully "linked" apps to my SD card but that hasn't created any additional storage space. I still can't download apps due to insufficient storage.
Please help!! I'm reaching the end of my sanity in trying to figure this out! I'm about to just go buy a new phone, but this one isn't even a year old yet!
Also, please respond in layman's terms, since i'm not a guru in this arena.
THANK YOU!!!
ZanyAL711 said:
I'm not by any meaning a technology, software, programming expert, please forgive my beginner language.
I have the LG P769 20h
I have rooted my phone
I have partitioned my SD card
I have installed Link2SD and App2SD
I receive an error message when I try to move apps to my SD card using Link2SD "App2SD is not supported by your device. Because your device has primary external storage which is emulated from the internal storage. You can link the app in order to move its files to your SD card"
I have successfully "linked" apps to my SD card but that hasn't created any additional storage space. I still can't download apps due to insufficient storage.
Please help!! I'm reaching the end of my sanity in trying to figure this out! I'm about to just go buy a new phone, but this one isn't even a year old yet!
Also, please respond in layman's terms, since i'm not a guru in this arena.
THANK YOU!!!
Click to expand...
Click to collapse
Hi ZanyAL711
You've pretty much done the proper steps to try and get apps to work. The reason that it's not working is that the phone, android version (not supported after 4.0+), most of the downloaded user apps and device system apps, just really doesn't support this feature.
The L9 has only 4gb total memory, which most of that is used by the "/system" partition and leaves a very limited user usable internal memory on the "/data" partition of something only like 1.6gb to 1.8gb of user stirage. Which barely leaves any room for the user to store user apps and or data on the device.
To kind of break it down to you in simple terms...
As i mention above, in android there are 2 main partitions on the devices internal memory:
The "/system" partition - This is where the OS, system apps, etc... are stored. No user data is stored on this partition.
The "/data" partition - This is where all of the user data is stored on the device.
Inside the "/data"partition you have -
"/data/apps"
"/data/data"
"/data/apps" Is where Downloaded user apps are stored and intalled to.
"/data/data" This is where the user "System settings", things that you have changed on the device (ringtones, wallpaper etc) are stored.
Also there are a several other minor partitions on the device but these really have no use to the topic at hand.
Both of these main partitions "/system" and "/data" are on the internal nand flash memory or eMMC (Embedded MultiMedia Card)
The whole data partition is used for user apps and system data only. Which leaves no where for music, movies, photos, documents etc. to be stored on the device.
This is where the external SD card comes into play and allows you to store music, movies, docs etc. off of the devices internal memory. The problem here is that, eben though the L9 has an external/removable SD card, it also has a small internal nand flash memory and it doesn't allow for much user data to be stored in the device and is causing the problem that you have, which is really the phone's lack of internal memory.
So there's not very many more options for you to try other than maybe the following.
You could try the method where you edit the build prop and run a script that allows you to add the feature to move apps to the SD card in "settings/apps/" menu
This can allow you to move some apps to the SD card. Again thought it's not a solution to the problem, but might help.
http://forum.xda-developers.com/showthread.php?t=2372172
Another option and probably the best one... Would be to install kuma82's stock modified ROM/backup. It's not custom ROM... It's slightly modified stock ROM and has extra apps, features and it's themed. Looks great too, way better than the complete stock ROM look. It also has an internal/external memory swapt script. You can read about it in the 2nd post of the ROM thread.
http://forum.xda-developers.com/showthread.php?t=2468880
It's a simple process, doesn't require the bootloader to be unlocked and kuma has directions for what you need and how to install it, in the 2nd post.
I personally have kuma's ROM running on my wife's L9 and no way would I go back to 100% stock ROM after running his.
Anyway hope this helps!

[Q] Vivo Y22 Storage Too Small (and other questions)

Dear developers,
Recently I got a new phone Vivo Y22 with Funtouch OS v1.0 (Christmas present). Its was okay at first then it start telling me that storage has not enough space (with only factory apps and Clean Master). I realize the it had about 4GB internal storage but divided to 2 parts. 2.5GB for system space and 1.06GB as internal storage. In system space, i have only 150mb left I always need to use Clean Master to wipe cache before I download anything. I tried Link2SD, I formatted my SD card and set 4GB partition as EXT2 but did not detect. Same goes for EXT3 and EXT4. It only works for FAT32 but some files cannot be linked using this format. Read some threads in web, they mentioned some phone does not support EXT2,3,4 format. Maybe this is my case? I tried to look for informations about Vivo Y22 but very less and worst, some of them is in chinese.
So the 1st question is: How can I increase the system space? Could I adjust the system space to occupy my more of my Internal Memory?
Second question is, how do I update my phone from JellyBean to KitKat? Do I follow tutorials that uses the same Chipset (Y22 uses MediaTek MT6582)? How if I want to install custom ROMs like CM11 (can't find Vivo Y22 in Device section in CM site so i presume it is not supported?)? There is very less information about rooting and flashing when it comes to this phone. I only manage to root the phone using tutorials given for some other chinese phone.
Thanks in advance..
By,
adlfurball
(just started using smartphone 3 weeks ago, was using old flip phones before hand)
Did you ever manage to fix this? I'd love to root my Y22 and put vanilla Android on there but can't find how to do it. The memory problem is useless on this phone.

System Memory?

Hi Guys!
Just wanted to get this straight once and for all from you, the experts.
I have bought this cheapo Chinese device (yeah, I know...)
The guy selling it swore on his life that the device had 12gb of storage for app installation.
I didn't quite believe that so I asked him to send me a benchmark screenshot to see what was the storage situation and he sent me this:
i.imgur.com/KAyugUv.jpg
So as it says, while it has 12.5 GB of "Internal Storage", it only has 0.68 GB available of System Storage...
And my understanding is that, lots of apps simply Won't install anywhere else besides the System Storage, and even if you can Move the app to the internal storage, it will Still take up some space on the system storage...
Am I understanding this correctly?
If that is so then, does that mean that after my apps use up that measly 680 MB of space on the device I am "SOL" and I won't be able to install anything else on the device??
Thanks for the help!
crodps said:
Hi Guys!
Just wanted to get this straight once and for all from you, the experts.
I have bought this cheapo Chinese device (yeah, I know...)
The guy selling it swore on his life that the device had 12gb of storage for app installation.
I didn't quite believe that so I asked him to send me a benchmark screenshot to see what was the storage situation and he sent me this:
i.imgur.com/KAyugUv.jpg
So as it says, while it has 12.5 GB of "Internal Storage", it only has 0.68 GB available of System Storage...
And my understanding is that, lots of apps simply Won't install anywhere else besides the System Storage, and even if you can Move the app to the internal storage, it will Still take up some space on the system storage...
Am I understanding this correctly?
If that is so then, does that mean that after my apps use up that measly 680 MB of space on the device I am "SOL" and I won't be able to install anything else on the device??
Thanks for the help!
Click to expand...
Click to collapse
You can set the setting to directly install to Internal Storage
AzrulHisyam said:
You can set the setting to directly install to Internal Storage
Click to expand...
Click to collapse
Thanks!
This unit has android 4.4.4
Could you post a walkthrough on how to do that so that no apps take space under System Storage?
crodps said:
Hi Guys!
Just wanted to get this straight once and for all from you, the experts.
I have bought this cheapo Chinese device (yeah, I know...)
The guy selling it swore on his life that the device had 12gb of storage for app installation.
I didn't quite believe that so I asked him to send me a benchmark screenshot to see what was the storage situation and he sent me this:
i.imgur.com/KAyugUv.jpg
So as it says, while it has 12.5 GB of "Internal Storage", it only has 0.68 GB available of System Storage...
And my understanding is that, lots of apps simply Won't install anywhere else besides the System Storage, and even if you can Move the app to the internal storage, it will Still take up some space on the system storage...
Am I understanding this correctly?
If that is so then, does that mean that after my apps use up that measly 680 MB of space on the device I am "SOL" and I won't be able to install anything else on the device??
Thanks for the help!
Click to expand...
Click to collapse
look ..if he means by system storage (the size of the ROM that will be installed) that mean you have 12 GB for your apps and that what i think it means(no android system can take 12gb !!)......and for moving your apps....you can try towelroot to root your device and install any app that can help you moving your apps....or try to go to settings>>apps>>and press the menu button and see if there is a option called...preferred installation bath or something like that>>>set it to removable sd card
flash- said:
look ..if he means by system storage (the size of the ROM that will be installed) that mean you have 12 GB for your apps and that what i think it means(no android system can take 12gb !!)......and for moving your apps....you can try towelroot to root your device and install any app that can help you moving your apps....or try to go to settings>>apps>>and press the menu button and see if there is a option called...preferred installation bath or something like that>>>set it to removable sd card
Click to expand...
Click to collapse
I found this on another page:
"System Storage" is where the OS and the System Applications are installed. This could also be considered where the User application are installed (based on your question). User installed applications are installed in /data/apps, settings and app data is stored in /data/data, and then application cache data is stored in /cache. These are all part of the "System Storage".
Internal Storage is an area that is used like an sdcard. As far as the Android OS is concerned, it is an sdcard. Some applications may save data to it, but it is mainly used as direct storage for your stuff. Like pictures taken with the camera, music, ringtones, things like that.
You cannot just adjust the size of system memory. Is it technically possible, yes. But doing so could require you to have knowledge of linux tool, rooting, custom roms, recoveries, and even possibly having to compile your own linux kernel and ROM or other information that I am not thinking of at the moment. Which is well beyond the scope of this site.
Click to expand...
Click to collapse
So that basically means is that all apps by default will install themselves or lots of info about them on the 1gb System Storage... And that translates to running out of space almost instantly if I start installing apps...
Perhaps the Root option could help alleviate some of this space constriction by forcing all apps to install in the Internal storage and leave the System storage completely alone?
crodps said:
I found this on another page:
So that basically means is that all apps by default will install themselves or lots of info about them on the 1gb System Storage... And that translates to running out of space almost instantly if I start installing apps...
Perhaps the Root option could help alleviate some of this space constriction by forcing all apps to install in the Internal storage and leave the System storage completely alone?
Click to expand...
Click to collapse
yeah that's right ..root can help...but i don't think 12 gb is gone like that just for system !> :cyclops:

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