Internal Memory and External SD Card Swap

After installing a couple of games and apps, Android tells you that you are out of storage space.  So you head on to ebay and buy the largest sd card your credit card can buy.  You slap in your brand new sd card and head on to install more apps, only to find out you still have no storage space left despite moving apps to sd card.

WHAT HAPPENED?
Android tablets in general, has a different directory structure compared to Android phones.  Mine has 504MB for apps (in system), 2.67Gb internal storage (sdcard), and mounts external sd cards as (extsd).  By default, external sd cards (extsd) are only used for media storage.  Unfortunately, apps only recognizes sdcard, so your media files will still need to be transferred to internal storage for it to be played. What's the point?

THIS HACK
This hack will swap the position of the internal sd card to the external one you bought earlier.

1. Using any file manager (Root Explorer), navigate to /etc.
2. Copy vold.fstab to root of your extsd and transfer to pc.
3. Using a text editor (Notepad), edit the following lines:
 
       dev_mount sdcard /mnt/sdcard auto /devices/virtual/block/nand1
       dev_mount extsd /mnt/extsd auto /devices/platform/sunxi-mmc.1/mm_host /devices/platform/sw_hcd_host0 /devices/platform/sw-ohci.1 /devices/plaform/sw-ohci.2
                                                      TO
             dev_mount extsd /mnt/sdcard auto /devices/virtual/block/nand1
        dev_mount sdcard /mnt/extsd auto /devices/platform/sunxi-mmc.1/mm_host /devices/platform/sw_hcd_host0 /devices/platform/sw-ohci.1 /devices/plaform/sw-ohci.2

4. Save.
5. Copy edited vold.fstab file back to /etc.
6. Reboot. Done!

MAKING LIFE EASIER
Sergey_F1 has made the process easier for novice users by creating a script for Allwinner Tablets in this link.

 1. Download the script (updated for all Allwinner devices)
 2. Unpack .zip file
 3. Connect tablet to pc in usb debugging mode, do not mount sd card!
 4. If Windows asks for drivers, install this in 32-bit or 64-bit
 5. Run SDvue.exe, Enter.
 6. Tablet will reboot.  Remove cable.
 7. Done!

119 comments:

  1. My eken tablet unmounts the sd card whenever I unmount a flash drive with this script. Any fix so that I wont have to restart my tablet whenever I unmount a flash drive from the usb host port?

    ReplyDelete
  2. You unmount in settings-storage-usbhost1-unmount sdcard. Wait while it unmounts. If it still unmounts sdcard, please use updated shell script in the above link. I have scrutinized the content of Sergey_F1's updated script and it works.

    ReplyDelete
  3. @anonymous
    ..Or examine the contents of your vold.fstab using root explorer and compare to the one I modified above. Usbhost should not be affected in any way.

    ReplyDelete
  4. Does this script works in the coby tablet MID7042?

    ReplyDelete
    Replies
    1. Yeah why would it not?

      Delete
    2. How come it says operation not permiteted

      Delete
  5. Helly i tried to do it, but after i make the changes on the pc y trie to copi it to the /etc directory and it doesnt let me paste anything in it

    ReplyDelete
  6. Thank you! That little program works brilliantly!! I now have 16GB to install my applications and games to! Thanks again! =D

    ReplyDelete
    Replies
    1. Can you tell the model of your Tablet So i can help You.

      Delete
    2. Can you tell me whats the model of your tablet? is this compatible to a13?

      Delete
    3. I've try this method on my A13 7" tablet and it work find and has no problem... in the first start up it was hang at android logo and the try to off again and turn it off again and start up it and open the android greatly find and has no problem... thanks for the tip...

      Delete
  7. Hi i tried ur above method by changing in vold.fstab. But when i restart the tablet it does not load the os. It gets stuck at the "android" logo. Any ideas?

    ReplyDelete
    Replies
    1. Please Mention your Tablet Model so i can Help you!

      Delete
    2. same problem here==my tablet not working now

      Delete
    3. same here, alcatel one touch t10. =(.

      Delete
  8. @Anonymous ^
    Click on the following link to solve your problem
    http://www.androidtablets.net/forum/mcbub-com/36203-ainol-novo-7-series-firmware-update-step-step-instructions.html

    ReplyDelete
  9. I tried sergey's method and it worked cheers...

    ReplyDelete
    Replies
    1. can u please give me a trusted instruction on how to install the adb drivers??
      thnx in advance.

      Delete
  10. can it be used for samsung galaxy one?

    ReplyDelete
  11. can it be used for samsung galaxy note 1??

    ReplyDelete
  12. After trying this, my tablet dead. stuck on android logo forever. can you help me? I tried link above to fix firmware, look like it was not the exact rom

    mine A13B tablet dual cam.

    ReplyDelete
  13. Hi, I have a hp touch. My operating system is cyanogenmod 9. I am about to buy an otg cable a powers hub and a USB card to install my new games to. For I am running out of space. Then I found out apps run in memory and I cannot install to the USB drive. I am rooted and have terminal. Will this script help. I would really appriciate an answer because this is the only thing remotely close I've found to fix my problem. Thanks in advance.

    ReplyDelete
  14. my mid-2330 q 29 tablet keeps on loading....after i do this...help plzzzz

    ReplyDelete
  15. im using ww one tablet 4.0.4 A13 1.5ghz..i already try using the HACK and it freeze on "ANDROID"..need some guide please..

    ReplyDelete
  16. Hey.. what if I do not root my tablet after the hack

    ReplyDelete
  17. My coby tablet gives me an editor .. what if I edit it on tablet.. not in p.c .. n with out rooting it.. will it work ?

    ReplyDelete
    Replies
    1. Did you edit right from your tablet? Are you the one with the A13-MID tablet? I have one and can edit from my tablet (it is rooted)and want to know if this works with no problems. thx

      Delete
  18. does it work on huwaei ideos s7?
    please do tell me.
    thanks.

    ReplyDelete
  19. Freaking awesome! You are the best it worked like a champ!

    ReplyDelete
  20. Davidry which tablet you have ?
    Because my tablet coby is not letting me paste any thing on it..
    plus my internal sdcard is full even after deleting all application...
    Plx tell me I need help !!! :-(

    ReplyDelete
  21. Did u mean that we have to copy that in our extsdcard first then connect to pc..after that we edit,lastly copy back that edit to our tab again?

    ReplyDelete
  22. It works for my tablet. Switched extsd 16G with 2G sdcard(internal one). My tablet is mid m758a. But, only I have made change to /mnt/sdcard to /mnt/extsd and
    /mnt/extsd to /mnt/sdcard in vold.fstab. Thanks for your helpfull blog.

    ReplyDelete
  23. guys i wanna know after it works with me and everything is done... what would happen if i remove the sd card from the phone??

    ReplyDelete
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    ReplyDelete
  25. Thanks. The script worked perfectly! Now I have nothing to worry. :)

    ReplyDelete
  26. wil this work on the pipo max m2?

    ReplyDelete
  27. ohhhh myyyy godddddddddd fuck man i have 0.00 B internal and 0 b extarnal :( please help me dude i forgot my sd while im doing this :( help meeeeeeeee i cant download i cant login whit usb i cant arrive my phoneeeeeeeee :(

    ReplyDelete
    Replies
    1. Well. NICE! Good for you.

      Delete
  28. hey man, is this working at mid-a13? thanks..

    ReplyDelete
  29. it doesn't allow me to overwrite the old vold.fstab when I try to paste the edited one? I cant even delete the one under /etc to replace it.. how should I proceed?

    ReplyDelete
    Replies
    1. okay now i managed to change it by rebooting my tab, but when i try to move an app, it still goes to the internal SD card.. what did I d wrong? I checked the vold.fstab again and it was the edited one.. please help :(

      Delete
    2. okay i made it work now.. aside from what was stated above, you also need to change /mnt/sdcard to /mnt/extsd and
      /mnt/extsd to /mnt/sdcard in vold.fstab

      Delete
  30. Thank you!!!You are amazing!!!I try on my tablet E-Boda impresspeed E1 and it's work great!

    ReplyDelete
  31. can you tell me how to do it step to step

    ReplyDelete
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    ReplyDelete
  33. Thank you to Sergey_F1 and this website!

    ReplyDelete
  34. Hello i have a agptek tp7w gbd 1209280453 Tablet and i would like to swap but when i copy the file and open it in note pad i dont see anything you are saying to change it would be nice to just download the file Maybe some one can post this information here http://www.androidhkmarket.co.nr/

    ReplyDelete
  35. Suppose if i use now 8gb memory card, and then later after rooting i change to 16gb memory card, will it work that time??

    ReplyDelete
  36. thanks. works on coby mid7036-4 but a little different. here's what i did.

    dev_mount ext_sd /mnt/ext_sd auto /devices/virtual/block/ndda
    dev_mount sdcard /mnt/sdcard auto /devices/platform/tcc-sdhc

    hope this helps

    ReplyDelete
    Replies
    1. hey can you give me the vold script because my coby kyros mid7036-4 has been stucked i cant open it please can you give me the script can you please please please pls

      Delete
    2. i mean the whole script can you write it and sen to my email and heres my email blaize0475@gmail.com please i have to fix it pilipino kanamn diba

      Delete
    3. maraming salamat bro ginawa ko yung nakasulat sa taas thank you talaga salamat ah try mo download yong need for speed most wanted bigyan kita nang site www.android.mob.com

      Delete
    4. ext_sd /mnt/sdcard

      and

      sdcard /mnt/ ext_sd

      Delete
  37. mother fucker assshole bitch madar chod bosadi tera ma chode tere bap ki ma mare ma ke laude kute ke pile namard tere bap ka balatkar ho apne ma ko chod saale

    ReplyDelete
  38. I LOVE YOU MAN,THIS HELPED SO MUCH 64GB BABY !!! on my arnova 7h, its a new tablet and even though its got 1ghz a8 cortex proccessor it is extremly powerful and runs all games,the tablet is looked apon as cheap but hell no,its amazing,its only reason why it is cheap was because it only has internal 4gb split into two,so just 2g each as sd...which is shit but now with this 64gb internal its work 200-300 pounds WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO haha love you! <3

    ReplyDelete
  39. Does the tablet need to be rooted in order to accomplish this? I've never rooted and not sure if it's something I want to do at this point. But I'm very aggravated with the fact that my internal is full and I have a 16gb sd card with nothing on it just sitting there being wasted.

    ReplyDelete
  40. Ok I ended up rooting and tried all of these steps. Something obviously went wrong. When I went into settings- Storage I kept getting the error message "unfortunately, Settings has stopped working". So I went to undo my steps but can't because I can't mount the sd card on the tablet and can't find a copy of the original vold.fstab. So now I'm stuck on what to do next without going into a factory reset/recovery. Any suggestions - It's a coby kyros mid8048

    ReplyDelete
  41. its stuck on ANDROID loading page...pls help

    ReplyDelete
  42. Greate pieces. Keep writing such kind of info on your site. I am really impressed by your site. Hey there, You have performed an incredible job.

    Android Apps

    ReplyDelete
  43. Hi,

    Please help! I have an A13 MID tablet that I am trying to swap an external 32GB sdcard for the 2GB internal sdcard. I can’t access the vold.fstab file on the tablet through the tablet explorer so I downloaded another explorer app. I was able to access the file, but everytime I try to copy to my extsd, it says operation failed. I can open the file and there is an edit function where I can edit the file on the tablet without connecting to a pc. When I edited the sdcard and extsd card information as you directed and clicked to save I got a warning message that asked if I wanted to make the change because it could not be undone. I did not make the change and now I am concerned. What if I do this and can’t be back into my tablet? I can email exactly what is in the file, as I can't post in this comment. Please help!!!!1

    ReplyDelete
  44. Another thought, is there any way to remove the partion of the 4GB internal memory that is split into 2GB for device and 2GB for the internal sdcard? 2GB is not really alot of internal storage so I was just wondering.

    ReplyDelete
  45. thaank youuuuu it worked..... IMPORTANTTT !!!!

    change /mnt/sdcard to /mnt/extsd and
    /mnt/extsd to /mnt/sdcard in vold.fstab

    and not which is mentioned above to work !!!!! :D

    ReplyDelete
    Replies
    1. NikunjSingh you are right!
      It totally worked, but only after I did what you wrote here to do.

      Before you it was also VanJo Pineda who said kinda' the same thing.

      Thank you both and to the original poster!

      Delete
  46. Hi can you give me the instructions how to change my 4gb internal storage for a 32gb on a Arnova 10d G3

    ReplyDelete
    Replies
    1. Hi, I have the same tablet and I have not been able to change the internal memory by external 32GB sd. I was wondering if you conguio do. 1000 Greetings and thanks. My email is abel_biker@hotmail.com

      Delete
  47. Hi,

    For the guys who are stuck in the Android loading screen - this might work.
    It worked for my generic A10 Chinese tablet after everything else failed - including resetting to factory settings and recovery from backup (proved to be corrupted)....

    Basically you need to start the tablet in download mode and edit the file back to the original content on tablet. Detailed steps below.

    Start tablet in Download mode (i.e. start tablet and connect it by USB to a computer - no drivers/software needed). You should be able to see the Android desktop, but sdcard and extsd will not be accessible.

    Install Total Commander and Jota text editor (might work with making the changes with only one app, I did it this way).
    In Total Commander, go to system files, System\etc.
    Edit vold.fstab with Total Commander Editor.

    Start Jota. Change setting to show tab characters.
    Open vold.fstab and change it back to initial state - bear in mind that the "spaces" between words are actually tab characters. Select all text, copy.

    Go back to Total Commander editor. Delete all text in vold.fstab and insert the text copied from Jota. Save (might request changing permissions to file - allow it).

    Reboot.

    If it still doesn't work, start in download mode as before and in Total Commander search for vold.fstab in the system root. Make sure all files are changed to initial state - if not edit them again.

    ReplyDelete
    Replies
    1. Thank you for this information, but when I connect to pc via usb I can't see the system files, only the sdcard and extsd. Am I not connecting the right way? I have not tried the switch yet, because right now I can only edit from the tablet, not by copying file and editing on pc as directed above. Also, I am not sure which way to edit the file based on all of the information from everyone that tried. I have an A13-MID chinese tablet.

      Thank you for any additional information you may have.

      Delete
  48. thankyou. it worked for me now I am having 16gb internal memory.
    thanks for your valuable post.

    ReplyDelete
  49. you have to be ROOTED before you follow the Steps above

    ReplyDelete
  50. That's phenomenal I didn't know about all this until I got to know this post of yours here. Also I am so excited to ask you one thing that I am interested about. Do you have any useful info about how to defend your own posts from being stolen?

    ReplyDelete
  51. Hi I tried this using my PIPO S1. and it worked for me. the only problem i am facing is that whenever my tablet goes to sleep it says "Storage Unexpectedly Removed" and when I try to open my applications it displays "App isn't installed". Do you guys know how to fix this?

    ReplyDelete
    Replies
    1. I think PIPO S1 got jelly bean android 4.1 with RK3066 Rockchip processor. This procedure is for android 4.0 and allwinner processor tablets. I am extremely sorry i can't help you. But you can edit vold.fstab file if you know how to do that. That is too risky. I edited my vold.fstab file before as mentioned above and my tablet restarts automatically and touch becomes unresponsive. So i advice you to don't do anything to your tablet till there is an article for PIPO S1.

      Delete
  52. Thank you very much. I used your method and changed extsd to sdcard and sdcard to extsd. My tablet is iberry AX01, allwinner a10 processor. Now i have 16gb for apps and 2gb as extra which was internal before.

    ReplyDelete
  53. videocon vt10 Hi i tried ur above method by changing in vold.fstab. But when i restart the tablet it does not load the os. It gets stuck at the "android" logo. Any ideas?

    ReplyDelete
  54. hi. can you help me with my coby kryos mid1042? thanks...

    ReplyDelete
  55. # Mounts the first usable partition of the specified device
    #dev_mount sdcard /mnt/sdcard auto /devices/platform/goldfish_mmc.0 /devices/platform/msm_sdcc.2/mmc_host/mmc1
    dev_mount flash /mnt/sdcard auto /devices/virtual/mtd/mtd9/mtdblock9
    dev_mount sdcard /mnt/external_sd auto /devices/platform/rk29_sdmmc.0/mmc_host/mmc0
    #dev_mount udisk /mnt/usb_storage auto /devices/platform/usb20_host/usb
    dev_mount udisk /mnt/usb_storage auto /devices/platform/usb20_otg/usb1

    ## Example of a dual card setup
    # dev_mount left_sdcard /sdcard1 auto /devices/platform/goldfish_mmc.0 /devices/platform/msm_sdcc.2/mmc_host/mmc1
    # dev_mount right_sdcard /sdcard2 auto /devices/platform/goldfish_mmc.1 /devices/platform/msm_sdcc.3/mmc_host/mmc1

    ## Example of specifying a specific partition for mounts
    # dev_mount sdcard /sdcard 2 /devices/platform/goldfish_mmc.0 /devices/platform/msm_sdcc.2/mmc_host/mmc1

    ReplyDelete
  56. guys please help me my tablet is ly-f1 alldro speed
    it stucks in android logo,,can someone post the default vold.fstab script?? please

    ReplyDelete
  57. please help what is the default vold.fstab script of ly-f1 alldrospeed MID tablet,,please help me

    ReplyDelete
  58. hi, what if my vold.fstab states that there are no sdcard/internal storage on the script? its 100% similar to my vold.emmc

    ReplyDelete
  59. Hi some one help me....

    My penta is701c tablert does not mount internal memory and sd card., pls give the solution..

    ReplyDelete
  60. 100% Working on a chinise tablet Allwinner processor A10 , downloaded the script ( switch SDvUe ) on my pc, downloaded driver PDAnet so I can do debug mode when USB connected , I didn't have to go into de vold.fstab manually everything was done by switch SDvUe. thank you very much for sharing and great job by Sergey_F1

    ReplyDelete
  61. Thank you ,it really work!!!!!!

    ReplyDelete
  62. hello..could you update no.4 driver for 32 bit has been delated..tq

    ReplyDelete
  63. Android Specifications Tablets might be great fun for swiping and poking around colourful apps, but trying to type anything more than a couple of sentences is as about as pleasant as a sneeze in the face.

    ReplyDelete
  64. I have recently purchase the HCL tablet it is really working but after some time it's start hanging while playing games, I have increase the memory SD card not it is very properly.

    ReplyDelete
  65. is A13 allwinner can use the Sergey_F1 process??

    ReplyDelete
  66. a13 worked fine had to change the permissions of the edited file to rw r r

    ReplyDelete
  67. Hi, I hve an Alcatel T10 tablet. and the same problem persists. i cannot download file because of it always says that i lack of enough memory even i have 16gb external memory.

    Will this solution be applicable in my tab?

    hope you can help me. :(

    ReplyDelete
  68. Thanks for sharing this. I have a Coby Kyros and it's a disaster. Although I have 4 GB of internal space, somehow I can't even install 1 app of 33 MB due to insufficient space. I bought a 16 GB micro sd card but can't install apps on that. I followed the procedure described above but I get the following error messages:

    remount failed: Operation not permitted
    failed to copy 'mod_vf.sh' to '/data/mod_vf.sh': permission denied
    Unable to chmod /data/mod_vf:sh: No such file or directory
    failed to copy 'cp_all.sh: No such file or directory
    Check path of TF-card and make modification
    /data/mod_vf.sh: not found
    Your TF-card mounted is denied
    remote object '/system/etc/vold.fstab.mod' does not exist
    rm failed for /data/mod_vf.sh. No such file or directory

    Anyone any suggestion what to do now?

    Thanks in advance!

    ReplyDelete
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    ReplyDelete
    Replies
    1. hello admin

      im sameerkhan

      i hv hcl me u1 tablet. and it is behaving weird. last time i try to install a iron man 3 game and wont install so i get it at my shop.

      (actually it belongs to my kids).. i do all reset. and delete things but nothing is working

      i go in recovery and wipe formatt .. but nothing is being deleted.. all thing is as it is.

      no new thing is being copy or being deleted in it..

      so i open it and try to short it out. rediculously i found one more sd card of 4gb inside tablet chip.

      i remove and put it in reader . connect to pc. it shows 1.8gb total and free around 800mb.

      i guess rest of part is rom part in sd card bcouse without that memory chip tablet is not booting up. i replace another 4gb and 8gb but nothing working..


      and i put back that sandisk 4gb back in hcl chip and it boots up as regular ...

      problem is it is not being formated or not being hard reset in recovery.. i use MPTOOL . i updated with it. but nothing working out for new game or installations

      for me the only solution left is to replace that 4gb SANDISK sd card which might cotain rom part..


      so how to make that vimicro disk to make tab work normaly...


      chip is vimicro. wich is said wen i remove internal sd card. vimicro chip not found....


      i attach the photo of board with sd card installed..

      Delete
  70. Hi I just bought this tablet below:

    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=390592661376#ht_9688wt_995

    And I am having the same problem as most people. I cannot overwrite the vold file or delete it or edit. I cannot do anything with since it is a system read only file.

    I tried several file managers but none worked.

    Also those same line:

    dev_mount sdcard /mnt/sdcard auto /devices/virtual/block/nand1
    dev_mount extsd /mnt/extsd auto /devices/platform/sunxi-mmc.1/mm_host /devices/platform/sw_hcd_host0 /devices/platform/sw-ohci.1 /devices/plaform/sw-ohci.2

    that you said to change is not on my vold file. There are 6 that are close enough but I am not sure which one to choose.

    Please Help me out this restriction is killing me.

    Regards

    Pawan Teeha

    ReplyDelete
  71. Hi Pawan!

    Make sure your tablet is properly rooted. Download "Root Checker" from Market to check. Could you post the lines here?

    ReplyDelete
  72. hi all plz help me...
    the internal memory of my tablet was deleted by a malware what would i do to recover the memory

    ReplyDelete
  73. hi
    second method worked perfectly........thanks a lot

    ReplyDelete
  74. thanks http://tabletmods.blogspot.sg/ ^_^ it works with my Allwinner tablet A13 7inch

    ReplyDelete
  75. Hey, even though my use storage is 32 GB, I can't move apps to sd card because it says it's full. I've moved all my previously external sd card, which has been swapped to the sd card. So I have 0 b in my external, and 27 something on sd card. Maybe the problem is I moved all the stuff to sd card. Please help. I'm using Samsung Galaxy Ace 2, running on stock firmware.

    ReplyDelete
  76. I changed the line as you said but still it didnot swaped my memory. In my laptop I have Internal memory, USB memory and SD card.

    Vold file

    Mounts the first usable partition of the specified device
    dev_mount sdcard /mnt/sdcard emmc@fat /devices/platform/goldfish_mmc.0 /devices/platform/mtk-sd.0/mmc_host
    dev_mount sdcard /mnt/sdcard2 auto /devices/platform/goldfish_mmc.1 /devices/platform/mtk-sd.1/mmc_host

    ReplyDelete
    Replies
    1. sdcard /mnt/ sdcard2

      and

      sdcard /mnt/ sdcard

      Delete
  77. cn any1 help me
    i hv rooted micomax funbook talk
    can this method of swaing memory woulld work 4 me
    plz help
    plzzzzz

    ReplyDelete
  78. When i opened the vold.fstab, it shows me the following on Xperia V. Please let me know what to change in this.

    dev_mount ext_card /storage/sdcard1 auto /devices/platform/msm_sdcc.3/mmc_host/mmc1
    dev_mount usbdisk /storage/usbdisk auto /devices/platform/msm_hsusb_host
    fuse_mount sdcard /storage/sdcard0 179 15 /mnt/int_storage

    ReplyDelete
    Replies
    1. ext_card /storage/usbdisk

      and

      usbdisk /storage/ext_card

      Delete
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    ReplyDelete
  80. HI, Guys i have Tm-MID721 Model Touchmate Tab will it work for it ?
    Am scared to do it . . . Just Tell will it work thanks:/

    ReplyDelete
  81. Hey all. My niece got an AGPTek 7" tablet for Christmas and I was pretty ticked off when I found out that App2SD was sending the files to an internal SDcard rather then to the external one.

    I have edited the file but everytime I try to move it back to the ETC folder on the Tablet I just keep getting an EAccess Error and I can't paste it. I'm guessing the internal storage is read only, and I have no idea how to change that if that is the problem.

    Would anyone have any other idea's on how to get apps over to the External SD card?

    Any help would be most appreciated.

    ReplyDelete
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  84. My Tab is an Allwinner A20 based Tab but my problem is...it never mounts the SD card at boot...I once even swapped sdcard and extSD which worked but the mounting problem isnt fixed...I have to manually mount it...any solutions?

    ReplyDelete
  85. I just have a quick question, I am more familiar with android phones than with tablets. I have the RCA 7 inch tablet model rct6077w2. Android SDK won't detect my device for adb will this method work on my tablet?

    ReplyDelete
  86. Sir how to restore the original settings after swapping the internal and external sd card ...that is to restore the internal and external sd card as it was...
    Please help me asap....

    ReplyDelete
  87. no method i try works i use a prontotec allwinner a20 android 4.2.2

    ReplyDelete
  88. @binay
    Just reverse the process. If still not work, tell me and I make tutorial tomorrow

    ReplyDelete
  89. @kemoi
    You should tell which Android OS are you now? ICS & Kitkat have different directory structure.

    ReplyDelete
  90. There is an error in your explanation. This is what works:

    FROM:
    dev_mount sdcard /mnt/sdcard auto /devices/virtual/block/nand1
    dev_mount extsd /mnt/extsd auto /devices/platform/sunxi-mmc.1/mm_host /devices/platform/sw_hcd_host0 /devices/platform/sw-ohci.1 /devices/plaform/sw-ohci.2
    TO
    dev_mount sdcard /mnt/extsd auto /devices/virtual/block/nand1
    dev_mount extsd /mnt/sdcard auto /devices/platform/sunxi-mmc.1/mm_host /devices/platform/sw_hcd_host0 /devices/platform/sw-ohci.1 /devices/plaform/sw-ohci.2

    ReplyDelete
  91. In addition:

    * It doesn't matter whether you edit /etc/vold.fstab in the tablet or not, as long as you can save the changes.
    * Remember to copy all the files in your old (internal) storage to the new (external) storage so as to see and use the old apps stored in the internal storage.
    * Your internal storage will now function as external storage, and vice-versa.
    * Comment here if the above text by anonymous also works for you. Change only those highlighted words, and ignore everything else in the /etc/vold.fstab file.
    * Let us know how it works for you!

    ReplyDelete